Hnyav hlau tshem tawm los ntawm Industrial Wastewater nrog PAM Flocculant Solutions

Nrog rau kev loj hlob ntawm electroplating, mining, hlau ua, roj teeb tsim, tanning, electronics manufacturing, thiab chemical ntau lawm, hnyav hlau -muaj cov dej khib nyiab tau dhau los ua cov pa phem tseem ceeb uas ntau lub lag luam yuav tsum nruj me ntsis tswj.

Tsis zoo li qee cov kuab paug organic uas tuaj yeem ua rau lub cev tsis zoo, cov hlau hnyav tsis tuaj yeem ploj mus los ntawm cov txheej txheem biodegradation zoo tib yam thiab tuaj yeem txuas ntxiv mus rau hauv lub cev dej, sediments, thiab cov kab mob nyob. Yog li ntawd, kev lag luam kev lag luam tsis yog tsuas yog yuav tsum tau txo qis cov ntsiab lus ntawm cov hlau hnyav hauv cov dej khib nyiab, tab sis kuj yuav tsum tsim kom muaj cov khoom ruaj khov thiab ruaj khov- cov kua dej sib cais thiab sludge kho tshuab.

Hauv kev kho dej khib nyiab, tshuaj lom neeg nag lossis daus + coagulation / flocculation + khoom- kua sib cais yog kev sib xyaw ua ke, uas polyacrylamide (PAM) feem ntau ua lub luag haujlwm tseem ceeb hauv kev ntxiv dag zog rau flocculation, txhawb kev daws teeb meem, thiab txhim kho sludge dewatering.

ECOLINK TECHNOLOGY tsom rua kev siv tshuaj kho dej thiab kev kho dej. Nws tuaj yeem muab anionic, cationic, thiab lwm yam polyacrylamide raws li cov yam ntxwv ntawm cov dej khib nyiab sib txawv, thiab pab cov neeg siv khoom hauv kev txiav txim siab cov khoom tsim nyog thiab cov kev ua haujlwm ua ke nrog kev sim kev sim.

I. Vim li cas Kev Kho Dej Hnyav Hnyav Yuav Tsum Muaj Cov Khoom Siv Tau Zoo -Kua Sib Nqus?

Qhov chaw ntawm cov dej khib nyiab hnyav hlau yog dav heev.

Chromium, npib tsib xee, tooj liab, thiab zinc yuav raug tsim thaum lub sij hawm electroplating thiab hlau nto kho cov txheej txheem; mining thiab ntxhia ua cov dej khib nyiab yuav muaj cov hlau lead, zinc, arsenic, tooj liab, thiab hlau; roj teeb thiab hluav taws xob tsim kev lag luam tuaj yeem tsim cov pa phem xws li cadmium, txhuas, thiab npib tsib xee.

Common hnyav hlau muaj xws li:

Lead (Pb)

Cadmium (Cd)

Chromium (Cr)

Hexavalent Chromium (Cr VI)

Mercury (Hg)

Arsenic (As)

Nickel (Ni)

Copper (Cu)

Zinc (Zn)

Cov ntaub ntawv ntawm cov pa phem no hauv cov dej khib nyiab hauv kev lag luam tsis zoo ib yam nkaus. Qee qhov muaj nyob hauv cov hlau ions yaj, thaum lwm tus ua ke nrog cov khib nyiab, colloids, lossis lwm yam sib xyaw.

Dab tsi ua rau nws nyuaj dua yog tias cov dej khib nyiab muaj feem ntau tsis muaj kab mob los ntawm ib qho hlau.

Piv txwv li, automotive manufacturing lossis hlau ua cov dej khib nyiab ib txhij muaj cov nickel, zinc, thiab hlau. Mining dej khib nyiab kuj tseem muaj ntau yam hlau nrog rau ntau cov ntxhia hauv cov khoom.

Yog li ntawd, kev kho cov dej khib nyiab hnyav tsis tuaj yeem nkag siab yooj yim xws li ntxiv ib qho tshuaj rau cov dej khib nyiab; Hloov chaw, cov txheej txheem kho kom tiav yuav tsum tau tsim raws li cov hom hlau, qhov siab, pH, cov ntsiab lus tshem tawm cov khib nyiab, thiab qhov kawg ntawm qhov yuav tsum tau tso tawm.

II. Txoj Kev Kho Kom Zoo Tshaj Plaws rau Industrial Heavy Hlau Wastewater

Tam sim no, ntau yam kev paub tab ntawm cov hlau khib nyiab kho cov thev naus laus zis tau tsim nyob rau hauv kev lag luam, suav nrog tshuaj lom neeg nag lossis daus, coagulation thiab flocculation, ion pauv, adsorption, membrane filtration, thiab electrochemical kho.

Cov technologies sib txawv muaj qhov sib txawv ntawm kev siv.

1. Txoj kev ua dej nag tshuaj

Tshuaj los nag yog ib txoj kev siv dav hauv kev lag luam- nplai hnyav hlau tshem tawm.

Nws txoj hauv kev yooj yim yog hloov cov hlau ions yaj mus rau hauv cov hlau tsis huv lossis cov hlau sulfides los ntawm kev kho cov dej khib nyiab pH, ua raws li cov khoom sib cais ntawm cov kua dej los ntawm sedimentation, filtration, thiab lwm yam.

Cov tshuaj siv tshuaj xws li txiv qaub, sodium hydroxide, lossis sodium sulfide feem ntau siv rau hauv kev ua haujlwm tiag tiag.

Qhov zoo ntawm txoj kev no nyob hauv:

Cov txheej txheem ntawm kev paub tab;

Kev ua haujlwm siab;

Tus nqi tshuaj lom neeg tsawg;

Muaj peev xwm kho ntau yam hlau ib txhij.

Txawm li cas los xij, tshuaj los nag lossis daus tsis tau txhais hais tias cov txheej txheem kho kom tiav.

Tom qab cov hlau ions hloov mus rau hauv cov khoom precipitates, cov khoom no yuav tsum tau muab cais tawm ntawm cov dej zoo. Yog tias cov khoom tsim tawm me me thiab qeeb hauv qhov nrawm nrawm, nws yuav ua rau muaj cov khib nyiab siab hauv cov effluent.

Nyob rau tib lub sijhawm, cov dej nag los ntawm cov tshuaj feem ntau ua rau muaj qee yam ntawm cov hlau -muaj cov sludge, yog li tom qab sludge dewatering yog qhov tseem ceeb sib npaug.

III. Coagulation thiab Flocculation: Cov kauj ruam tseem ceeb uas PAM ua lub luag haujlwm

Hauv ntau qhov kev kho dej khib nyiab, tshuaj los nag thiab coagulation / flocculation yog ob kauj ruam txuas ntxiv.

Coagulants thawj zaug ua rau cov kab mob colloidal tsis ruaj khov, thiab tom qab ntawd dhau los ntawm cov txheej txheem flocculation, micro- cov khoom yuav maj mam sib sau ua ke loj dua, yooj yim dua - rau - daws flocs.

Feem ntau siv coagulants muaj xws li:

Polyaluminium Chloride (PAC)

Ferric Chloride

Aluminium Sulfate

ThiabPolyacrylamide (PAM)feem ntau ua raws li flocculant los yog coagulant pab nyob rau hauv tom ntej particle aggregation.

PAM Pab Tshem Tawm Cov Hlau Hnyav Li Cas?

PAM nws tus kheej tsis tsuas yog "yuam kev hnyav hlau".

Nyob rau hauv cov txheej txheem chemical nag lossis daus, cov hlau hnyav ua ntej tsim cov khoom ua ntej los ntawm cov tshuaj tiv thaiv. Tom qab ntawd, PAM siv nws cov qauv saw hlau los txuas txuas thiab adsorb cov khoom me me ua ke.

Cov khoom uas yog Ameslikas me me thiab tsis zoo nyob rau hauv kev daws teeb meem kev ua tau zoo maj mam tsim loj, denser flocs.

Nws tuaj yeem nkag siab yooj yim xws li: Hnyav hlau ions → Cov tshuaj tiv thaiv cov ntaub ntawv precipitate → PAM txhawb cov particle aggregation → Cov ntaub ntawv loj dua flocs → Sedimentation / pom → Ua tiav cov khoom sib cais - kua sib cais

Yog li ntawd, hauv kev siv PAM rau kev siv cov dej khib nyiab hnyav, tus nqi ntawm PAM feem ntau cuam tshuam rau hauv:

Accelerating floc tsim;

Txhim kho floc qauv;

Ua kom nrawm nrawm;

Txhim kho kom meej meej ua kua zoo;

Pab kom pom tom ntej;

Txhim kho dewatering kev ua tau zoo ntawm hlau- muaj cov sludge.

IV. Tus nqi tsim nyog ntawm kev siv ua ke ntawm PAM thiab PAC

Rau ntau cov dej khib nyiab hauv cov hlau hnyav, kev cia siab rau ntawm ib qho flocculant nkaus xwb tsis tuaj yeem ua tiav cov khoom zoo tshaj plaws -kua sib cais.

Inorganic coagulants xws li PAC yog lub luag haujlwm tseem ceeb hauv kev txo cov colloidal stability, thaum PAM ntxiv txhawb kev txuas thiab kev sib sau ntawm cov khoom.

Yog li, PAC + PAM yog qhov sib xyaw ua ke ntau heev.

Cov ntaub ntawv qhia tau hais tias nyob rau hauv cov xwm txheej zoo, PAC ua ke nrog anionic polyacrylamide siv hauv kev kho cov dej khib nyiab hauv tsheb tuaj yeem ua tiav 98% hlau tshem tawm tus nqi thaum txo cov zinc thiab nickel cov ntsiab lus.

Technical logic ntawm qhov kev sib xyaw ua ke tuaj yeem raug suav hais tias yog:

PAC: Lub luag haujlwm rau CoagulationTom qab PAC ntxiv rau cov dej khib nyiab, nws pab kom tsis txhob muaj cov colloids thiab cov khoom zoo, ua rau lawv yooj yim dua mus rau theem tom ntej flocculation.

PAM: Lub luag haujlwm rau Flocculation thiab BridgingPAM siv cov adsorption thiab bridging mechanism ntawm nws cov polymer chains kom aggregate coagulated micro{0}}particles rau hauv loj flocs.

Khoom -Kev sib cais ua kua: Ua kom tiav cov kev hloov pauv ntawm cov pa phem los ntawm theem AqueousCov tsim flocs tuaj yeem raug cais tawm ntawm dej los ntawm sedimentation, huab cua flotation, pom, thiab lwm yam.

Yog li ntawd, tsim nyog PAM flocculant rau cov dej khib nyiab tsis yog hais txog kev nrhiav "siab dua molecular hnyav" lossis "siab dua", tab sis yuav tsum tau txiav txim siab raws li PAC hom, dej tsis zoo, cov khoom siv hlau, thiab cov khoom siv hauv qab - cov khoom sib cais ua kua.

V. Daim ntawv thov ntawm Anionic PAM hauv cov dej khib nyiab hnyav

Tom qab cov dej nag los, cov hlau hnyav hauv cov dej khib nyiab feem ntau tau hloov mus ua hlau hydroxide lossis hlau sulfide precipitates.

Cov khoom zoo li no feem ntau muaj qhov zoo flocculation, ua anionic polyacrylamide (APAM) yog ib qho kev xaiv.

Anionic polyacrylamide muaj cov pab pawg ua haujlwm tsis zoo uas tuaj yeem cuam tshuam nrog cov khoom tsim tom qab coagulation thiab txhawb kev sib sau ceev ceev los ntawm polymer bridging.

Hauv kev ua hlau, electroplating, thiab lwm yam kev kho dej khib nyiab, APAM tuaj yeem siv rau:

Hlau precipitate flocculation;

Tshem tawm cov khib nyiab;

Txhim kho cov kua dej kom meej;

Sludge sedimentation;

Sludge thickening;

Sludge txias ua ntej lim xovxwm.

Cov ntaub ntawv qhia meej qhia tau hais tias hauv kev ua hlau thiab electroplating kev kho dej khib nyiab, APAM tuaj yeem siv los ua kom zoo rau kev sib cais ntawm cov khib nyiab thiab cov hlau sludge, muab cov kev mob zoo dua rau kev lim dej tom ntej lossis centrifugal dewatering.

VI. Vim li cas cov dej khib nyiab tsis yooj yim xav tau PAM xaiv kev txiav txim siab?

Qhov tseeb ntawm qhov chaw muaj dej zoo tsis tshua muaj qhov ruaj khov.

Hlau concentration, pH, ntsev cov ntsiab lus, tshem tawm cov khib nyiab, organic teeb meem, thiab coagulant ntau npaum li cas tuaj yeem hloov pauv.

Yog li, thaum xaiv anionic polyacrylamide rau cov dej khib nyiab hlau, kev yuav khoom yuav tsum tsis txhob ua tiav raws li lub npe "anionic PAM", tab sis xav tau kev txiav txim siab ntxiv ntawm:

Molecular hnyav;

Charge ceev;

Hom Ionic;

Cov dej khib nyiab pH;

Hlau precipitate zog;

PAC hom thiab ntau npaum li cas;

Floc loj;

Kev ceev ceev;

Cov khoom siv dewatering tom qab.

Rau cov dej khib nyiab uas muaj qhov tshwj xeeb ntawm cov dej tsis zoo, lwm hom PAM kuj tuaj yeem raug soj ntsuam raws li kev ua haujlwm tiag tiag.

Cov ntaub ntawv qhia tau hais tias nyob rau hauv cov dej khib nyiab nyuaj xws li ntau- hlau ore ua, amphoteric polyacrylamide tuaj yeem siv cov pab pawg zoo thiab tsis zoo los ua haujlwm thoob plaws pH ntau dua thiab nyob rau hauv cov xwm txheej sib txawv.

Yog li ntawd, kev xaiv PAM rau cov dej khib nyiab hnyav yog qhov tseem ceeb ntawm kev sib piv "dej zoo - tshuaj - txheej txheem - khoom", es tsis yog ib qho khoom yooj yim xaiv qauv.

VII. Lub luag haujlwm ntawm PAM hauv Dewatering Heavy Hlau -Sludge

Sludge generated thaum lub sij hawm hnyav hlau tsis tuaj yeem tsis quav ntsej.

Tom qab chemical nag lossis daus thiab flocculation, ntau cov pa phem hlau hloov los ntawm theem aqueous mus rau theem khoom thiab thaum kawg nkag mus rau hlau - muaj sludge.

Yog hais tias cov sludge ya raws siab, nws tsis tsuas yog nce kev thauj mus los thiab pov tseg cov nqi, tab sis kuj txo cov kev khiav hauj lwm ntawm lim presses, centrifuges, thiab lwm yam khoom siv.

Yog li ntawd, PAM rau sludge dewatering kuj yog ib qho tseem ceeb daim ntawv thov kev taw qhia nyob rau hauv hnyav hlau khib nyiab kho tshuab.

Cationic polyacrylamide (CPAM) feem ntau yog siv rau sludge conditioning, txhawb sludge floc tsim los ntawm altering lub binding xeev ntawm sludge hais, yog li tso tawm ntau dej dawb.

Tom qab kev kho kom zoo, nws pab:

Ua kom lim ncuav mog qab zib kom qhuav;

Accelerate siv lim xovxwm ua ceev;

Txhim kho centrifugal dewatering kev ua tau zoo;

Txo sludge ntim;

Txo cov khoom pov tseg uas tsim kev puas tsuaj tom ntej.

Nws yuav tsum raug sau tseg tias PAM xaiv rau cov dej khib nyiab hnyav thiab PAM xaiv rau sludge dewatering tsis tas yuav zoo ib yam.

Upstream hnyav hlau nag lossis daus flocculation thiab downstream sludge dewatering yog rau cov txheej txheem sib txawv; Yog li, kev tshuaj ntsuam xyuas tshuaj thiab ntsuas lub thawv yuav tsum tau ua sib cais es tsis yog ua rau siv tib PAM rau tag nrho cov kab ke.

VIII. PAM Kev Npaj thiab Kev Siv: Cov Kev Txuas Ua Haujlwm tseem ceeb txiav txim siab Flocculation Effect

Hauv kev kho cov dej khib nyiab hnyav, qhov txiaj ntsig tiag tiag ntawm PAM tsis yog nyob ntawm cov khoom nws tus kheej nkaus xwb, tab sis kuj tseem cuam tshuam nrog PAM kev npaj siab, kev sib cais, lub sijhawm laus, kev sib xyaw ua ke, thiab qhov chaw ntau npaum li cas.

Txawm hais tias tus qauv PAM tsim nyog raug xaiv, kev npaj tsis tsim nyog lossis kev siv tshuaj yuav ua rau muaj teeb meem xws li cov flocs tsis zoo, qeeb qeeb qeeb, nce cov kua dej tshem tawm, thiab siv tshuaj lom neeg ntau dua.

Yog li ntawd, rau PAM rau kev kho cov dej khib nyiab hnyav, daim ntawv thov teb yuav tsum tau ua tib zoo tsom rau cov khoom xaiv thiab kev ua haujlwm.

Cov kev khiav hauj lwm tsis zoo muab los ntawm cov ntaub ntawv hauv qab no:

Cov kev ntsuas saum toj no yuav tsum ua lub hauv paus rau kev sim teb thiab kev hloov kho, tsis yog siv cov khoom siv ruaj khov rau txhua qhov dej khib nyiab.

IX. Vim Li Cas PAM Yuav Tsum Muaj Kev Soj Ntsuam Tag Nrho thiab Kev Laus?

PAM belongs rau siab -molecular- hnyav polymer flocculants, thiab nws cov saw hlau molecular yuav tsum tau nthuav dav hauv dej kom ua kom cov khoom nqus dej thiab txuas txuas ua haujlwm zoo dua.

Yog tias PAM tsis ua tiav tag nrho, qhov chaw siab tshaj -cov kua nplaum polymer tuaj yeem tsim. Cov pob no tsis tsuas yog tsis tuaj yeem koom nrog hauv flocculation nkaus xwb, tab sis kuj tseem tuaj yeem ua rau txo qis kev siv tshuaj.

Yog li ntawd, thaum lub sijhawm ua haujlwm tiag tiag ntawm kev kho dej khib nyiab nrog PAM, kev saib xyuas yuav tsum tau them rau cov hauv qab no thaum lub sijhawm npaj PAM.

1. Tswj Kev Npaj Siab

Cov ntaub ntawv tau pom zoo kom PAM npaj siab ntawm: 0.05–0.3% w/v

Qhov tshwj xeeb tshwj xeeb tau txais yuav tsum tau hloov kho raws li PAM qauv, cov cuab yeej siv tshuaj, thiab kev kho dej khib nyiab.

Cov concentration ntau dhau tuaj yeem ua rau muaj kev sib cais thiab kev siv zog; Tsis tshua muaj concentration yuav ua rau kom cov kua ntim ntim thiab ntim cov khoom ntim.

2. Xyuas kom dej txias txias

Dej kub thaum lub sij hawm PAM dissolution yuav tsum ncav cuag: Ntau tshaj los yog sib npaug rau 15 degree

Tsis tshua muaj kub yuav cuam tshuam rau cov txheej txheem polymer dissolution; yog li ntawd, yuav tsum tau them nyiaj rau PAM lub sij hawm tawg thiab lub xeev laus tshwj xeeb tshaj yog nyob rau hauv qis - qhov chaw ua haujlwm kub.

3. Ua kom lub sijhawm laus txaus

Ua ntej siv, PAM tau pom zoo kom ntub dej tsawg kawg: 45 feeb

Kev sib xyaw ua ke zoo thiab kev laus pab polymer molecular chains nthuav dav, tso cai rau lawv sib cuam tshuam zoo dua nrog cov khoom raug tshem tawm thiab cov hlau precipitates tom qab nkag mus rau thaj tsam flocculation.

X. Vim li cas PAM tsis tuaj yeem cuam tshuam ntawm kev kub ceev?

PAM txawv ntawm cov tshuaj inorganic zoo tib yam.

Nws flocculation mechanism tso siab rau cov hlua polymer ntev. Yog tias cov tshuab shear muaj zog heev, cov saw hlau polymer molecular yuav raug degradation, yog li cuam tshuam rau kev muaj peev xwm txuas ntxiv.

Yog li, cov ntaub ntawv qhia pom zoo: Agitator tip speed Tsawg dua lossis sib npaug li 3 m / s.

Qhov no kuj yog ib qho ntawm qhov yooj yim saib tsis tau hauv daim teb PAM daim ntawv thov.

Hauv cov txheej txheem ua tau zoo, PAM feem ntau dhau mus: Dissolution → Aging → Dilution → Metered Dosing → Gentle Mixing → Floc Formation → Solid -Kev sib cais ua kua

Yog hais tias muaj zog heev stirring yog siv thaum lub sij hawm lub flocculation tsim theem, txawm yog hais tias tus PAM qauv raug xaiv, nws yuav ua rau twb tsim flocs tawg.

Yog li, PAM flocculant daim ntawv thov tsis yog tsuas yog hais txog kev siv tshuaj ntau ntxiv, tab sis sib piv cov tshuaj siv tshuaj nrog cov dej ntws.

XI. Yuav txiav txim siab npaum li cas PAM?

Qhov ntau npaum ntawm PAM muab los ntawm cov ntaub ntawv yog: 0.5-5 mg / L

Kev noj tshuaj tiag tiag yog cuam tshuam los ntawm ntau yam, suav nrog:

Hlau load;

Coagulant hom;

Cov dej khib nyiab pH;

Tshem tawm cov khoom concentration;

Hlau precipitate zog;

Lub hom phiaj effluent zoo;

Tom qab sedimentation lossis filtration khoom.

Yog li ntawd, txawm tias cov dej khib nyiab electroplating, qhov zoo tshaj plaws PAM ntau npaum li cas thoob plaws ntau lub hoobkas yuav txawv.

Ib yam li ntawd, qhov kev pom zoo ntawm tib PAM cov khoom lag luam hauv cov dej khib nyiab sib txawv tsis tuaj yeem rov ua dua.

Cov ntaub ntawv tshwj xeeb hais txog tias ua ntej kev thov raug cai, cov thawv ntim yuav tsum tau ua nyob rau ntawm qhov chaw - cov qauv dej khib nyiab tshwj xeeb los txiav txim siab PAM qib uas tsim nyog - suav nrog hom ionic, tus nqi them ceev, thiab qhov hnyav molecular - thiab paub meej tias qhov kev siv ntau npaum li cas.

XII. Vim li cas Jar Testing Ib kauj ruam tseem ceeb hauv kev xaiv PAM?

Rau cov dej khib nyiab hauv kev lag luam, kev yuav khoom PAM nkaus xwb raws li cov npe ntawm kev lag luam muaj qee yam kev txwv.

Piv txwv li: "Qhov no yog cov dej khib nyiab electroplating, yog li yuav tsum tau siv PAM tshwj xeeb."

Qhov kev txiav txim zoo li no tsis tiav.

Ib txoj kev txhim khu kev qha ntau dua yog ua cov kev sim ncaj qha siv tus neeg siv khoom qhov chaw dej khib nyiab.

Thaum kuaj lub thawv, cov qauv PAM sib txawv thiab ntau npaum li cas tuaj yeem muab piv rau:

Floc tsim ceev;

Floc loj;

Floc compactness;

Kev ceev ceev;

Supernatant clarity;

Sludge ntim;

Sludge dewatering kev ua tau zoo.

Qhov kev xaiv zaum kawg yuav tsum tsis yog tsuas yog cov khoom lag luam nrog "flocs loj tshaj plaws hauv chav kuaj", tab sis yog lub tswv yim uas sib npaug tag nrho cov kev kho mob thiab cov nqi khiav lag luam.

Yog li, kev xaiv PAM rau cov dej khib nyiab hnyav yuav tsum tau tsim los ntawm cov qauv dej tiag tiag thiab cov txheej txheem txheej txheem.

XIII. Yuav ua li cas sib txawv Industrial Sectors xaiv Heavy Hlau Wastewater Treatment Schemes

Cov hlau hnyav hnyav, cov concentrations, thiab cov dej khib nyiab sib txawv sib txawv ntawm cov khoom lag luam sib txawv, yuav tsum tau hloov kho cov txheej txheem kho.

Cov kev lag luam thiab cov kev kho mob tseem ceeb muab los ntawm cov ntaub ntawv hauv qab no.

1. Electroplating thiab hlau nto kho dej khib nyiab

Electroplating dej khib nyiab feem ntau suav nrog:

Chromium;

Nickel;

tooj liab;

Zinc.

Rau cov dej khib nyiab zoo li no, cov txheej txheem muaj xws li: Tshuaj Tiv Thaiv Kab Mob (Lime / Sodium Hydroxide) + Coagulation

Ua ntej, kev hloov pH yog ua los ntawm cov hlau precipitates, ua raws li cov coagulants zoo li PAC thiab PAM flocculants los txhawb cov particle aggregation.

Ntawm lawv, APAM pab cov hlau precipitate particles tsim flocs ruaj khov, txhim kho tom qab teeb tsa thiab pom kev ua haujlwm.

Rau cov tshuab uas xav tau kev tshem tawm cov sludge ntxiv, rov- kev tshuaj ntsuam rau CPAM tuaj yeem ua tau nyob rau hauv cov theem qis qis qis.

2. Mining thiab Mineral ua cov dej khib nyiab

Mining thiab ntxhia ua feem ntau muaj cov khib nyiab siab, nrog rau cov pa phem xws li txhuas, zinc, arsenic, tooj liab, thiab hlau.

Txoj kev kho mob yooj yim pom zoo los ntawm cov ntaub ntawv yog: Txiv qaub Precipitation + Flocculation

Rau cov dej khib nyiab no, ntxiv rau kev pab cov hlau hnyav ua kom cov khoom sib sau ua ke, PAM kuj tuaj yeem tswj cov khoom zoo ntawm cov ntxhia.

Yog li ntawd, anionic polyacrylamide rau cov dej khib nyiab tsis yog tsuas yog siv rau kev tshem tawm cov hlau hnyav xwb, tab sis kuj tseem txhim kho cov khoom sib cais ntawm cov dej ntxhia (kua sib cais).

Hauv cov txheej txheem kev kho dej mine, PAM kev ua tau zoo feem ntau yuav tsum tau xav txog ib txhij: Kev tshem tawm hlau + Tshem tawm cov khoom tshem tawm + Teeb nrawm + Sludge Dewatering

Qhov no kuj yog ib lub tswv yim tseem ceeb thaum xaiv PAM hauv kev lag luam ntxhia.

3. Roj teeb thiab hluav taws xob tsim cov dej khib nyiab

Roj teeb thiab khoom siv hluav taws xob kev lag luam tuaj yeem koom nrog:

Cadmium;

txhuas;

Nickel.

Cov kev taw qhia kev kho mob muab los ntawm cov ntaub ntawv yog: Sulfide Precipitation + Filtration

Hauv cov txheej txheem no, tshuaj lom neeg cov tshuaj tiv thaiv yog thawj zaug siv los ua hlau precipitates, ua raws li kev pom kom ua tiav cov khoom sib cais - kua.

Yog tias cov khoom tsim tawm tau zoo, qhov tsim nyog coagulation / flocculation ntsuas tuaj yeem txhim kho kev ua haujlwm pom.

Yog li ntawd, nyob rau hauv complex electronics industrial wastewater, PAM muaj peev xwm ua hauj lwm pab raws li ib tug pab flocculant post- nag lossis daus, tsim kom muaj kev ruaj khov nyob rau hauv downstream pom.

XIV. Cr(VI) Kev kho dej khib nyiab hauv kev lag luam tanning

Cov teeb meem hlau hnyav hauv kev lag luam tanning txawv me ntsis ntawm cov dej khib nyiab dav hlau.

Cov ntaub ntawv qhia tau hais tias rau Cr(VI) cov dej khib nyiab, nws feem ntau xav tau: Cr(VI) → Cr(III) Txo → Alkaline Precipitation

Qhov ntawd yog hais tias, hexavalent chromium tshem tawm tsis tuaj yeem cia siab rau PAM ncaj qha.

Ua ntej, yuav tsum tau txo cov txheej txheem los hloov cov hom chromium, tom qab ntawd los ntawm alkaline nag lossis daus los ua cov khib nyiab.

Raws li qhov no, PAM tuaj yeem koom nrog hauv cov txheej txheem flocculation, txhawb kev sib sau ua ke ntawm cov khoom precipitate thiab txhim kho cov khoom sib cais - kua.

Qhov no qhia tau hais tias PAM qhov chaw nyob hauv cov dej khib nyiab hnyav yog qhov tseeb heev: PAM feem ntau ntxiv dag zog rau particle aggregation thiab cov khoom sib cais -kua kua, es tsis yog hloov cov tshuaj tiv thaiv dej ntws.

Kev nkag siab qhov no yog qhov tseem ceeb rau kev tsim PAM dosing systems kom raug.

XV. Tsawg-Concentration Heavy Metal Wastewater: Ion Exchange and Adsorption

Rau qis- dej khib nyiab, tshwj xeeb tshaj yog yaug dej nrog cov hlau tsis tshua muaj siab, tso siab rau cov dej nag los ntawm cov tshuaj ib txwm muaj kev txwv.

Kev siv ntau yam muab rau hauv cov ntaub ntawv yog: Ntau yam hnyav hlau,<10 mg/L

Hauv cov xwm txheej zoo li no, xav txog:

Ion txauv;

Adsorption.

Ion pauv resins tuaj yeem xaiv ntes cov hlau ions, ua rau lawv tsim nyog rau cov ntawv thov nrog cov qauv tso tawm nruj thiab cov hlau tsis tshua muaj siab.

Cov thev naus laus zis adsorption tuaj yeem siv cov pa roj carbon activated, zeolites, biosorbents, lossis lwm yam adsorbents kom txo qis cov pa phem ntxiv.

Txawm li cas los xij, ob qho tib si thev naus laus zis ntsib cov nqi siv tau zoo nrog rau cov khoom siv rov ua dua tshiab lossis hloov teeb meem.

Yog li ntawd, nyob rau hauv ua tiav industrial wastewater kho systems, kho cov chav tsev yuav tsum tau txiav txim raws li cov pa phem concentration thiab zaum kawg discharge yuav tsum tau, es tsis txhob ua raws li qhov siab tshaj plaws tshem tawm tus nqi.

XVI. Yuav Ua Li Cas Muab PAM nrog Membrane Treatment Technologies?

Thaum cov tuam txhab lag luam xav tau tsis yog kev ua raws li tus qauv nkaus xwb tab sis kuj tseem siv cov dej khib nyiab rov qab los yog ze rau - xoom kua paug, tso siab rau nag lossis daus thiab flocculation feem ntau tsis txaus rau qhov kawg ntawm cov dej zoo.

Hauv qhov no, xav txog: Tshuaj los nag → PAM Flocculation → Khoom -Kua sib cais → Membrane Treatment

Membrane kho technologies muaj xws li:

Nanofiltration (NF);

Ultrafiltration (UF);

Rov qab Osmosis (RO).

Ntawm lawv, RO tuaj yeem txo cov pa phem ntau ntxiv hauv dej, ua kev kho mob siab rau siab - cov txheej txheem rov qab siv dua.

Txawm li cas los xij, cov txheej txheem membrane yog rhiab heev rau cov khib nyiab thiab colloidal hais.

Yog tias cov hlau hnyav hnyav tsis raug tshem tawm tag nrho, nkag mus rau hauv cov txheej txheem membrane ncaj qha ua rau cov kab mob fouling txaus ntshai.

Yog li ntawd, tus nqi ntawm PAM nyob rau hauv cov tshuab no tsis yog nyob rau hauv "pab tshem cov hlau hnyav", tab sis kuj nyob rau hauv: Txhim kho cov khoom ntws tawm -kua sib cais → Txo cov khib nyiab nkag mus rau hauv daim nyias nyias → Tsim kom muaj kev ruaj ntseg zoo rau kev kho mob siab heev xws li RO / UF.

Cov ntaub ntawv tseem ceeb kuj qhia tau tias hauv xoom kua paug lossis ultra- cov dej khib nyiab rov siv dua, cov txheej txheem ua ke ntawm nag lossis daus + polyacrylamide flocculation + thim rov qab osmosis polishing tuaj yeem siv tau.

XVII. Vim li cas cov txheej txheem sib xyaw ua ke zoo dua rau cov dej khib nyiab Complex?

Cov dej khib nyiab hnyav hlau feem ntau muaj qhov nyuaj.

Cov dej khib nyiab tib lub sijhawm tuaj yeem muaj:

Ntau cov hlau hnyav;

Cov khoom uas raug tshem tawm;

Colloidal hais;

Organic kuab paug;

Hlau nyob rau hauv txawv valence xeev;

Kev hloov pauv ntawm pH.

Yog li ntawd, nws yog ib qho nyuaj los daws txhua yam teeb meem nyob rau hauv ib qho kev kho technology.

Ib txoj hauv kev siv engineering ntau dua yog los sib txuas cov thev naus laus zis sib txawv.

Piv txwv li:

Basic Heavy Hlau Wastewater TreatmentKev kho pH → Chemical Precipitation → PAC Coagulation → PAM Flocculation → Sedimentation/Filtration Haum rau cov xwm txheej tsom rau tshem tawm cov hlau precipitates thiab cov khoom tshem tawm.

Advanced Treatment SchemeChemical Precipitation → PAC + PAM → Khoom -Kev sib cais ua kua → UF/NF/RO Tsim nyog rau cov dej khib nyiab uas muaj ntau dua cov kev xav tau zoo.

Rov siv dua thiab siab -Kev kho tus qauvPretreatment → Chemical Precipitation → PAM Flocculation → Solid -Kua sib cais → Membrane Treatment → Reuse Txo cov pa phem thiab tshem tawm cov khib nyiab los ntawm kev kho cov dej ntws, tawm hauv kev ua kom huv huv mus rau cov txheej txheem membrane.

Txoj kev kho mob theem no tsis txhob tsom mus rau tag nrho cov kev kho mob siab mus rau ib qho khoom siv.

XVIII. Peb Cov Ntsiab Cai Tswjfwm hauv PAM Daim Ntawv Thov

Synthesizing cov txheej txheem hnyav hlau khib nyiab kho, PAM kev ua tau zoo yog sib txuas rau peb yam.

Ntsiab Lus 1: Xaiv txoj cai PAM Hom

Ua ntej, txiav txim siab seb puas yuav siv:

APAM;

CPAM;

Amphoteric PAM;

Lwm yam tshwj xeeb.

Heavy hlau nag lossis daus flocculation thiab sludge dewatering muaj cov txheej txheem sib txawv; Yog li, tib yam khoom siv tsis tuaj yeem siv qhov muag tsis pom.

Cov ntsiab lus tseem ceeb 2: Txiav txim siab qhov tsim nyog Molecular Nyhav thiab Charge Density

PAM molecular hnyav thiab tus nqi ceev cuam tshuam:

Floc loj;

Floc zog;

Kev daws teeb meem;

Kev siv tshuaj lom neeg;

Sludge dewatering tshwm sim.

Yog li ntawd, cov qib tsim nyog yuav tsum tau txiav txim siab los ntawm kev ntsuas dej.

Ntsiab Lus 3: Tswj cov tshuaj siv tshuaj tiag tiag

Qhov ntau npaum li cas muab los ntawm cov ntaub ntawv yog: 0.5-5 mg / L

Txawm li cas los xij, qhov ntau yam no tsis tau txhais hais tias txhua qhov haujlwm yuav tsum tau txais cov koob tshuaj tib yam nkaus.

Txoj hauv kev kom raug yog txiav txim siab qhov zoo tshaj plaws los ntawm kev xeem lub thawv, tom qab ntawd ua kev hloov kho raws li cov khoom siv hauv teb thiab cov kev ua haujlwm tas mus li.

XIX. ECOLINK TECHNOLOGY's Technical Service Approach for PAM

Rau cov neeg siv khoom lag luam, kev yuav PAM tsis yog tsuas yog yuav ib lub hnab ntawm cov tshuaj.

Cov yam tseem ceeb uas cuam tshuam rau lub sijhawm ntev- cov nqi khiav hauj lwm lub sij hawm muaj xws li: Qib Khoom + Kev Hloov Dej Zoo + Txoj Kev Npaj + Kev Siv + Coagulation / Flocculation Conditions + Khoom-Kev Sib Cais Ua Kua + Sludge kho

Yog li ntawd, ECOLINK TECHNOLOGY tsis yog tsuas yog muab PAM rau kev kho dej khib nyiab, tab sis kuj tseem tuaj yeem muab kev txhawb nqa rau cov neeg siv cov dej zoo thiab cov hom phiaj kho.

Raws li cov ntaub ntawv pov thawj, ECOLINK muaj PAM txhua xyoo muaj peev xwm tshaj 100,000 tons thiab muaj lub hauv paus hauv- lub tsev kuaj mob los txhawb kev kuaj daim ntawv thov, pab cov neeg siv khoom pov thawj los ntawm kev sim lub thawv ua ntej rau kev xaiv cov khoom thiab xa mus rau qhov chaw.

Rau cov dej khib nyiab hnyav, kev txhawb nqa los ntawm ECOLINK TECHNOLOGY tuaj yeem nthuav tawm ib ncig ntawm cov txheej txheem hauv qab no: Cov Ntaub Ntawv Cov Khoom Siv Hluav Taws Xob → Kev Ntsuas Dej → PAM Qauv Kev Ntsuas → Lub Thawv Ntsuas → Kev Siv Tshuaj Zoo → Txheej Txheem → Daim Ntawv Thov Teb

Txoj hauv kev no txo ​​cov kev xaiv tsis sib xws los ntawm kev yuav khoom raws li cov npe khoom lossis kev paub txog kev lag luam.

XX. Yuav ua li cas los tsim kom tiav Hnyav Hlau Wastewater Treatment Process?

Kev kho cov dej khib nyiab hnyav tsis tshua muaj kev cia siab rau ib qho kev kho tshuab.

Cov kuab paug sib txawv tuaj yeem muaj nyob rau hauv yaj, colloidal, thiab feem me me; Yog li, tshuaj lom neeg cov tshuaj tiv thaiv, coagulation / flocculation, solid{0}}kua sib cais, thiab kev kho siab heev yuav tsum tau ua ke rationally raws li cov dej khib nyiab.

Ib qho kev lag luam hnyav hlau khib nyiab kho dej ua haujlwm tuaj yeem tsim tau raws li: Kev Sau Cov Dej khib nyiab → pH hloov kho → Tshuaj lom neeg nag lossis daus → PAC Coagulation → PAM Flocculation → Khoom -Kua Sib Nqus → Sludge Dewatering → Advanced Treatment → Standard Discharge lossis Reuse

Txhua kauj ruam ua tiav lub luag haujlwm sib txawv:

Kev kho pH: Tsim cov dej nag lossis dej nagCov tshuaj los nag ua haujlwm zoo sib xws nrog pH. Cov hlau hydroxide sib txawv muaj qhov sib txawv kom pom cov nag lossis daus; Yog li ntawd, kev ua haujlwm tiag tiag yuav tsum tswj pH raws li hom hom hlau hom es tsis yog siv tus nqi ruaj khov.

Chemical Precipitation: Converts Dissolved Metals to SolidsHlau ions tsim insoluble precipitates siv reagents xws li txiv qaub, sodium hydroxide, los yog sodium sulfide. Lub hom phiaj ntawm theem no yog ua kom tiav cov tshuaj tiv thaiv.

PAC Coagulation: Destabilizes haisTom qab cov tshuaj tiv thaiv kab mob, cov khoom loj ntawm cov nplua precipitate yuav raug tsim tawm. PAC pab ua kom tsis muaj zog ntawm cov khoom no, tsim cov xwm txheej rau cov dej ntws qis.

PAM Flocculation: Txhawb Particle AggregationNyob rau theem no,Polyacrylamide (PAM)txuas micro- cov khoom mus rau hauv cov flocs loj dua los ntawm adsorption thiab polymer saw bridging.

Khoom -Kev sib cais ua kua: Tshem tawm Flocs los ntawm DejTsim flocs tuaj yeem raug tshem tawm ntawm sedimentation, pom, lossis lwm yam khoom siv -kua sib cais.

Sludge Dewatering: Txo cov nqi pov tseg tom ntejCov hlau hnyav- muaj cov sludge yuav tsum tau dewatering ntxiv. Tsim nyog cationic polyacrylamide (CPAM) tuaj yeem xaiv rau sludge txias raws li cov khoom sludge.

Yog li ntawd, nyob rau hauv ib tug tag nrho hnyav hlau khib nyiab kho system, PAM yuav ib txhij tshwm sim nyob rau hauv ob qho tib si upstream flocculation thiab downstream sludge dewatering theem, tab sis cov kev xaiv logic rau PAM txawv ntawm ob theem.

XXI. Technical Synergy Ntawm PAM, PAC, thiab Kev Kho Membrane

Nyob rau hauv tej yaam num uas yuav tsum tau siab - tus qauv tso tawm los yog cov dej khib nyiab rov qab siv dua, siv cov tshuaj los nag thiab flocculation ib leeg yuav tsis ua tau raws li qhov yuav tsum tau ua kom zoo dej zaum kawg.

Nyob rau hauv tas li ntawd, ib tug ua ke txoj kev kho yuav raug saws: Chemical Precipitation + PAC + PAM + Solid-Liquid Separation + RO

Cov ntaub ntawv qhia tau hais tias membrane technologies suav nrog nanofiltration (NF), ultrafiltration (UF), thiab rov qab osmosis (RO), ntawm cov uas thim rov qab osmosis tuaj yeem ua tiav cov hlau tshem tawm siab heev rau siab - qauv rov siv cov xwm txheej.

Txawm li cas los xij, cov txheej txheem membrane tsis haum rau ncaj qha tiv thaiv hnyav ntawm cov khoom raug tshem tawm thiab cov khoom colloidal.

Yog hais tias cov dej ntws los nag thiab flocculation ua tsis zoo thiab cov khoom zoo nkag mus rau hauv cov txheej txheem membrane, cov kab mob fouling yuav nce ntxiv.

Yog li ntawd, tus nqi ntawm PAM nyob rau hauv cov txheej txheem kho membrane tsis yog tsuas yog cuam tshuam rau hauv cov hlau hnyav hnyav precipitate flocculation, tab sis kuj tseem txhim kho cov khoom ntws hauv dej-kua sib cais kom muaj kev ruaj ntseg zoo dua rau cov txheej txheem hauv qab.

Cov haujlwm ntawm txhua chav ua haujlwm tuaj yeem nkag siab zoo li:

Lub tswv yim kev kho mob theem no txo ​​cov kev ua haujlwm siab ntawm cov cuab yeej siv ib leeg thiab yog qhov zoo dua rau cov dej khib nyiab ntau.

XXII. Cov teeb meem kev thov feem ntau nrog PAM hauv kev kho cov dej khib nyiab hnyav

Txawm hais tias siv PAM flocculant tsim nyog rau cov dej khib nyiab, cov teeb meem xws li flocs txawv txav, qeeb qeeb, lossis kev siv tshuaj lom neeg tseem tuaj yeem tshwm sim ntawm qhov chaw.

Cov teeb meem no feem ntau muaj feem xyuam rau cov qauv khoom, cov txheej txheem npaj, ntau npaum li cas, thiab cov dej ntws zoo.

Qhov teeb meem 1: Flocs me dhau lawm, Kev daws teeb meem qeeb

Tej yam ua tau muaj xws li:

PAM qauv mismatch;

Tsis txaus PAM ntau npaum li cas;

Kev noj tshuaj PAC tsis tsim nyog;

pH tsis tuaj yeem ncav cuag cov dej nag zoo;

PAM tsis tiav los yog kev laus;

Kev sib xyaw tsis tsim nyog.

Ncaj nraim nce PAM ntau npaum li cas yog tsis pom zoo rau ntawm no.

Ib txoj hauv kev tsim nyog dua yog rov- tshuaj xyuas cov dej ntws los ntawm cov tshuaj lom neeg los nag thiab coagulation, tom qab ntawd sib piv cov qauv PAM sib txawv ntawm kev sim lub thawv.

Qhov teeb meem 2: Qhov PAM Ntxiv Ntxiv, qhov ua tau zoo dua

PAM tsis yog "qhov ntau, qhov zoo".

Thaum cov tshuaj siv tshuaj ntau tshaj qhov tsim nyog, cov khoom siv polymer ntau dhau tuaj yeem hloov pauv cov ntsiab lus ntawm qhov chaw thiab ua rau muaj tshuaj lom neeg.

Yog li ntawd, kev siv PAM daim ntawv thov yuav tsum tau nrhiav lub qhov rais kom tsim nyog ntau dua li qhov muag tsis pom kev nrhiav tshuaj lom neeg ntau dua.

Qhov ntau npaum ntawm PAM muab los ntawm cov ntaub ntawv yog: 0.5-5 mg / L

Cov koob tshuaj zaum kawg yuav tsum tau hloov kho raws li cov hlau thauj khoom, hom coagulant, thiab lub hom phiaj effluent zoo.

XXIII. Yuav txo cov nqi siv PAM li cas?

Rau kev lag luam kev kho dej khib nyiab, PAM tus nqi yuav tsuas yog ib feem ntawm tag nrho cov nqi.

Ntau qhov tseem ceeb tshaj yog: Chav Dej Siv Tshuaj Siv Tshuaj × Kev Kho Mob Tiag Zog × Sludge Production × Dewatering Efficiency

Yog li ntawd, PAM nrog tus nqi qis dua tab sis kev siv ntau dua yuav tsum tsis txhob siv nyiaj ntau dua li cov khoom lag luam nrog tus nqi siab dua me ntsis tab sis qis dua thiab kev ua haujlwm zoo dua floc.

Piv txwv li, nyob rau hauv tib lub ntim dej:

Cov khoom A muaj tus nqi qis dua, tab sis yuav tsum muaj ntau dua;

Cov khoom B muaj tus nqi siab dua me ntsis, tab sis txo qis kev siv tiag tiag los ntawm kev ua haujlwm zoo dua thaum txhim kho sludge dewatering.

Dab tsi yuav tsum tau muab piv rau thaum kawg yog: Tus nqi PAM tiag tiag rau ib tuj dej khib nyiab

Ntau dua li kev sib piv: PAM Nqe Ib Tuj

Qhov no kuj yog ib qho ntawm cov kev ntsuas tseem ceeb ECOLINK TECHNOLOGY tsom rau thaum lub sij hawm PAM daim ntawv thov kev xeem.

XXIV. Yuav Ua Li Cas Txiav Txim PAM Qhov Zoo Tshaj Plaws ntawm Kev Xeem Lub Thawv?

Rau cov haujlwm tshiab lossis cov haujlwm uas muaj qhov sib txawv ntawm cov dej tsis zoo, kev kuaj lub thawv yog ib txoj hauv kev tshuaj xyuas zoo heev.

Cov qauv PAM sib txawv thiab ntau npaum li cas tuaj yeem teeb tsa rau qhov sib piv.

Piv txwv li, kev ntsuam xyuas tuaj yeem ua nyob ib puag ncig cov hloov pauv hauv qab no:

Pawg 1: Ntau hom PAMSib piv: APAM; CPAM; Amphoteric PAM; Lwm yam tsim nyog tshwj xeeb PAMs.

Pawg 2: Cov khoom sib txawvRaws li cov qauv dej zoo ib yam thiab cov txheej txheem txheej txheem, sib piv PAMs ntawm qhov sib txawv ntawm qhov hnyav thiab qhov hnyav.

Pab Pawg 3: Cov tshuaj sib txawvStepwise kho ntau npaum li cas nyob ib ncig ntawm qhov kev pom zoo, saib: Floc tsim; Floc loj; Kev ceev ceev; Supernatant clarity; Sludge ntim.

Pawg 4: Kev Lag Luam Kev Lag LuamTsis txhob xaiv tus qauv nkaus xwb vim nws muaj cov flocs loj tshaj plaws. Xav txog: PAM noj; Sludge dewatering kev ua tau zoo; Kev ruaj ntseg zoo; Downstream pom load; Tag nrho cov nqi khiav haujlwm.

Los ntawm txoj kev no, PAM zoo tshaj plaws rau kev kho cov dej khib nyiab hnyav tuaj yeem txiav txim siab ntau yam kev tshawb fawb.

XXV. Cov txiaj ntsig tseem ceeb ntawm PAM hauv Kev Kho Hnyav Hlau Hlau

Raws li kev txheeb xyuas cov txheej txheem ua ntej, lub luag haujlwm ntawm PAM tuaj yeem muab faib ua tsib yam:

Strengthening FlocculationPAM siv cov saw hlau txuas polymer los khi cov khoom zoo rau hauv cov flocs loj.

Txhim kho SedimentationKev tsim cov denser flocs txhim kho particle daws kev ua haujlwm.

Txhim khu kev ua tau zoo -Kua Separation EfficiencyFlocculation zoo txo ​​qhov kev pheej hmoo ntawm cov khoom zoo uas nkag mus rau hauv qab dej pom lossis cov txheej txheem kho mob siab heev.

Txhim kho Sludge DewateringRau cov hlau- muaj cov sludge, txias nrog CPAM tsim nyog txhim kho lim xovxwm lossis centrifugal dewatering kev ua tau zoo.

Txo cov nqi ua haujlwm tag nrhoKev xaiv PAM raug txo qis kev siv tshuaj lom neeg tsis tsim nyog thaum txhim kho cov dej ntws hauv qab sludge kho thiab cov cuab yeej ua haujlwm tau zoo.

Yog li ntawd, tus nqi ntawm PAM hauv kev kho dej khib nyiab mus deb tshaj qhov tsuas yog "flocculant".

Thoob plaws tag nrho cov txheej txheem, nws txuas: Tshuaj Los nag → Particle Aggregation → Khoom -Kua sib cais → Sludge Dewatering → Advanced Treatment

XXVI. Yuav ua li cas ECOLINK TECHNOLOGY muab Hnyav Hlau Wastewater PAM Solutions

Cov dej khib nyiab sib txawv heev ntawm cov neeg siv khoom sib txawv.

Yog li ntawd, ECOLINK TECHNOLOGY tsom ntxiv rau kev sib piv cov khoom PAM nrog cov txheej txheem dej tiag tiag.

Raws li cov ntaub ntawv pov thawj, ECOLINK muaj peev xwm tsim tau txhua xyoo ntau tshaj 100,000 tons thiab tau nruab nrog - lub tsev kuaj sim rau daim ntawv thov, muab PAM xaiv kev txhawb nqa los ntawm kev sim lub thawv ua ntej mus rau qhov chaw xa tawm.

Rau cov neeg siv khoom siv dej khib nyiab, ECOLINK TECHNOLOGY muab cov khoom lag luam thiab kev txhawb nqa nyob ib puag ncig cov lus qhia hauv qab no:

Tshuaj Kho Dej

Anionic Polyacrylamide (APAM)

Cationic Polyacrylamide (CPAM)

Nonionic Polyacrylamide (NPAM)

PAC

Lwm Cov Tshuaj Kho Dej

Cov cuab yeej kho dej

Raws li kev xav tau kev kho mob tshwj xeeb, kev teeb tsa ntxiv tuaj yeem suav nrog:

Kev lag luamCov khoom siv kho dej khib nyiab

Cov khoom siv kho dej phwj tuaj

RO Systems

UF Systems

EDI Systems

Dej Reuse Systems

Cov khoom siv Desalination

Nyob rau hauv txoj kev no, cov khoom siv tshuaj ntshiab yog txuas mus rau hauv kev kho dej kom tiav.

XXVII. Los ntawm PAM Cov Khoom Siv Khoom Siv kom ua tiav cov kev kho dej

Rau cov dej khib nyiab hnyav, cov neeg siv khoom xav tau tiag tiag los daws yog feem ntau tsis yog "qhov twg PAM yuav", tab sis: Yuav ua li cas kom ua tau raws li cov qauv kev tso tawm thaum tswj cov tshuaj lom neeg, sludge, thiab cov khoom siv ua haujlwm.

Yog li, ua tiav kev pabcuam kev pabcuam ua haujlwm tuaj yeem nthuav tawm ntawm cov kauj ruam no:

Kauj Ruam 1: Nkag siab txog cov dej tsis huvSau cov ntaub ntawv ntawm: Hom hlau hnyav, hlau concentration, pH, tshem tawm cov khib nyiab, cov dej ntws tawm, tso tawm lossis rov siv dua.

Kauj Ruam 2: Txiav txim siab txoj kev kho mob yooj yimRaws li cov yam ntxwv ntawm cov dej khib nyiab, txiav txim siab seb puas yuav siv: Chemical Precipitation → PAC Coagulation → PAM Flocculation Los yog ntxiv ntxiv: Pom → UF / NF / RO

Kauj Ruam 3: PAM Kev Ntsuas Kev NtsuasSib piv PAM hom thiab qib sib txawv los ntawm kev ntsuas dej.

Kauj Ruam 4: Txiav txim siab qhov zoo tshaj plaws koob tshuajSaib xyuas floc thiab daws qhov ua tau zoo raws li ntau npaum li cas los tsim kom muaj kev ua haujlwm tsim nyog.

Kauj Ruam 5: Match Solid- Cov Khoom Siv Ua Kua Sib NqusXaiv cov sedimentation, pom, lim xovxwm, lossis cov khoom siv centrifuge raws li cov khoom floc thiab cov yam ntxwv sludge.

Kauj Ruam 6: Ntxiv Kev Kho Mob Zoo Tshaj Plaws Raws Li Qhov Kawg Dej ZooRau kev rov siv dua lossis siab dua - cov haujlwm tso tawm tus qauv, xav txog kev kho cov membrane ntxiv.

Txoj hauv kev no-los ntawm cov tshuaj mus rau cov khoom siv, los ntawm kev sim kuaj mus rau engineering daim ntawv thov- txo qis kev sib txuas lus thiab kev sib koom tes cov nqi tshwm sim los ntawm cov neeg siv khoom nrog ntau tus neeg xa khoom sib cais.

XXVIII. Cov hom phiaj kev kho mob sib txawv sib haum rau cov kev sib txawv

Tsis yog txhua tus neeg siv khoom xav tau qhov system tib yam nkaus.

Lub Hom Phiaj 1: Txheem Hnyav Hlau Tshem Tawm

Tsom ntsoov rau: Tshuaj Los nag + PAC + PAM + Khoom -Kev Sib cais ua kua Ua kom pom tseeb ntawm kev tshem tawm cov hlau hnyav, tshem tawm cov khib nyiab, thiab kev kho sludge.

Lub hom phiaj 2: Ua kom cov dej khib nyiab rov qab siv dua

Ntxiv rau sab saum toj ntawm cov kev kho mob yooj yim: Tshuaj los nag + PAC + PAM + Khoom - Kev Sib cais kua + UF / RO Lub ntsiab tseem ceeb yog tswj cov khib nyiab pov tseg thiab colloidal load nkag mus rau hauv daim nyias nyias.

Lub Hom Phiaj 3: Siab -Txoj Cai Rov Siv Dua lossis Zero Liquid Discharge

Kev txais yuav ntxiv: Pretreatment + Precipitation + PAM Flocculation + Khoom -Kua sib cais + Membrane kho

Cov ntaub ntawv qhia tau hais tias rau xoom paug lossis ultra- cov dej khib nyiab rov qab siv dua, kev sib xyaw ua ke ntawm nag lossis daus, polyacrylamide flocculation, thiab rov qab osmosis polishing tuaj yeem siv tau.

Cov txheej txheem kawg tseem yuav tsum tau txiav txim siab raws li qhov tseeb ntawm cov dej zoo, cov hom phiaj kev kho mob, thiab kev tsim vaj tsev.

XXIX. Vim li cas PAM xaiv ncaj qha cuam tshuam rau cov nqi khiav haujlwm?

Hauv kev kho cov dej khib nyiab hnyav, txawm tias PAM feem ntau tsis yog cov khoom siv kim tshaj plaws lossis tshuaj lom neeg hauv lub cev, nws cuam tshuam ntau theem qis.

Kev xaiv PAM tsis tsim nyog tuaj yeem ua rau: Kev tsim Floc tsis txaus → Kev daws teeb meem tsis zoo → Cov khoom siv hluav taws xob siab → Ua kom qis qis qis Load → Siab dua Membrane Fouling Risk → Nyuaj Sludge Dewatering → nce tag nrho cov nqi khiav lag luam

Hloov pauv, kev xaiv PAM kom zoo ua rau: Cov Particle Flocculation tag nrho → Cov khoom ruaj khov -Kev sib cais ua kua → Txhim kho Supernatant zoo → Txo qis qis kho Load → Txhim kho Sludge Dewatering Performance

Yog li ntawd, kev xaiv PAM yuav tsum raug soj ntsuam los ntawm qhov kev xav ntawm tag nrho cov kab ke es tsis yog saib ntawm tus nqi khoom nkaus xwb.

Cov ntaub ntawv qhia tau hais tias xaiv qhov raug PAM los ntawm qhov pib qhov project tsis txhob muaj teeb meem kev ua haujlwm xws li tsis txaus flocculation quab yuam, siv polymer ntau dhau, thiab kev ua haujlwm tsis zoo sludge dewatering.

XXX. Xaus: PAM yog ib qho tseem ceeb ntawm kev pab hauv cov khoom khov-Kev sib cais ua kua rau cov dej khib nyiab hnyav

Kev kho cov dej khib nyiab hnyav yog ib qho kev tsim kho vaj tse uas muaj cov tshuaj lom neeg, kev sib sau ua ke, cov khoom siv -kua sib cais, kev kho sludge, thiab kev ua kom huv siab.

Cov dej nag tshuaj lom neeg feem ntau yog lub luag haujlwm rau hloov cov hlau yaj mus rau hauv cov khoom precipitates; coagulants zoo li PAC pab destabilize hais; thiab polyacrylamide (PAM) txuas ntxiv txhawb cov khoom zoo los tsim cov flocs loj dua ntawm polymer bridging, yog li txhim kho kev daws teeb meem thiab cov khoom sib cais - kua.

Rau kev ua hlau, electroplating, thiab ntxhia ua cov dej khib nyiab tom qab dej nag, anionic polyacrylamide (APAM) tuav cov nqi thov tseem ceeb; rau downstream dewatering ntawm hlau -muaj sludge, cationic polyacrylamide (CPAM) tuaj yeem xaiv raws li cov yam ntxwv sludge.

Rau cov dej khib nyiab hauv kev lag luam nrog cov dej tsis zoo thiab cov dej tsis sib haum, kev ntsuas dej tiag tiag yuav tsum tau xaiv qhov tsim nyog PAM hom, qhov hnyav molecular, nqi ceev, thiab ntau npaum li cas.

Yog li ntawd, PAM tsis yog ib qho khoom lag luam uas yuav tsum tau soj ntsuam nyob rau hauv kev sib cais los ntawm tus txheej txheem, tab sis cov txheej txheem tseem ceeb sib txawv hauv cov txheej txheem kev kho dej khib nyiab.

ECOLINK TECHNOLOGY tuaj yeem muab kev lag luam rau cov neeg siv khoom nrog kev txhawb nqa xws li kev xaiv tshuaj lom neeg thiab kev kuaj sim rau cov txheej txheem kho dej nyob ib puag ncig PAM, PAC, thiab cov khoom siv kho dej.

Rau cov dej khib nyiab hnyav, cov dej khib nyiab pov tseg, cov dej khib nyiab electroplating, cov dej khib nyiab hlau, thiab lwm yam kev lag luam khib nyiab, txoj hauv kev tsim nyog feem ntau tsis yog xaiv ib qho tshuaj xwb, tab sis los ntawm: Kev Ntsuas Dej Zoo → Tshuaj Los nag → PAC Coagulation → PAM Flocculation → Solid -Kev Sib cais dej → Tshaj tshaj plaws → Sludge tiav haum rau kev ua haujlwm tiag tiag.

Yog tias lub hom phiaj tau nce ntxiv los ntawm "tus qauv tso tawm" mus rau "cov dej khib nyiab rov qab siv dua", cov txheej txheem kho membrane xws li UF, NF, lossis RO tuaj yeem ua ke.

Thaum kawg, los ntawm kev xaiv PAM kom raug, kev tswj hwm kev noj tshuaj kom tsim nyog, thiab kev ua kom zoo - kev sib xyaw ua ke, cov hom phiaj kev kho mob tuaj yeem ua tau raws li kev tswj hwm kev noj tshuaj zoo dua, kev tsim cov sludge, thiab cov nqi ua haujlwm ntev -.