Abstract: Vitamin B12 Kws Kho Mob Ntau Lawm Wastewatery muaj cov yam ntxwv ntawm cov txheej txheem siab, siab yog qhov nyuaj kom tau raws li cov qauv emission cuam tshuam. Txoj kev txheej txheem ntawm "kev kho cov kab ke biochemical-membrane system confation thiab kev ua tiav kom ua tiav kev kho xoom thiab cov peev txheej siv tshuaj vitamin B12 Kws Tshuaj Khib. Ntawm lawv, kev kho mob biochemical supts biochemical cov txheej txheem ntawm "kev cog qoob ncaws Cov dej tsim tau ua tau raws li cov qauv dej rov qab siv dua. Lub membrane tsom rau yog evaporated thiab crystallized, thiab cov zis}}}}}}}}}}}}}}}}}}}}} 6009-2014) feem. Kev kho mob biochemical - Membrane system concentration thiab ntsev sib cais thiab cov khoom siv tshuaj tua hluav taws xob siv cov ntaub ntawv xoom-tawm thiab cov peev txheej siv cov khoom pov tseg kom zoo sib xws wantuav
Vitamin B12 (vb12) yog lub suab sib dhos, tseem hu ua Cobalamin, Cyanocobalamin, tsiaj protein ntau, thiab cov tshuaj tiv thaiv tsiaj txhu anemia. Lub cev lub zog tseem ceeb ntawm VB12: 1) Koom tes nrog cov pob txha cov pob txha liab los tiv thaiv kev ua phem; 2) Raws li cov celzyme cofactor hauv lub cev, txhawb cov protein ntau yam; 3) Tiv thaiv kev hloov chaw thiab cia ntawm folic acid hauv cov hlwb.
Nrog rau kev nthuav dav ntawm cov kev piav ntawm daim ntawv thov nyob rau hauv xyoo tsis ntev los no, kev siv VB12 tau nce, nplai ntau lawm. Nyob rau hauv kev sib cais txheej txheem ntawm vb12 tsim los ntawm fermentation, muaj ntau ntawm cov ntsev ntau thiab high-ammonia nitrogen dej khib nyiab yog tsim tawm, uas yog qhov nyuaj heev los kho. Hauv thaj av Northwest uas cov khoom siv dej tsis muaj tsawg, ua tiav xoom tawm thiab cov peev txheej xoom ntawm cov dej khib nyiab yog qhov muaj teeb meem maj nrawm uas yuav tsum tau daws.
Tom qab ntawm VB12 npaj kho kom kho tau
Lub tuam txhab biopharteutical, cov khoom tseem ceeb yog VB12.
Cov txheej txheem ntawm kev tsim VB12 los ntawm fermentation mas suav nrog fermentation, rho tawm thiab hluavtaws. Cov ntaub ntawv tso rau ntau lawm yog cov ntsev inorganic xws li ntsev ntsev thiab cov ntsev magnesium, feem ntau yog chlorides thiab sulfates. Txhawm rau thaum kawg ua tiav "kev kho mob ntawm VB12 ntau lawm sau cov ntsev, thiab cov khoom siv ua kom zoo dua qub, raws li cov khoom siv ua kom tiav thiab cov khoom siv tau ua kom zoo dua qub yog cov khoom siv ammonia Kev kho evaporation kom txo cov nyiaj ntawm ammonia nitrogen nkag mus hauv chaw nres tsheb phwj. Cov dej khib nyiab nkag mus rau cov txheej txheem dej phwj tuaj yeem kho los ntawm "cov txheej txheem Biochemical-Membrane system confation thiab ntsev sib cais thiab crystallization thiab crystallization".
Kev ntsuas kom loj dua: cod 5 000}}}} mg / l, pH 5.5 ~ 11, hardness 300 ~ {1 000} ml / l, nws yog ib qho nyuaj los kho cov dej khib nyiab, nrog cov siab tawv, muaj kev nyuaj siab thiab lwm yam yam ntxwv.
VB12 Cov Txheej Txheem Kho Mob Hluav Taws Xob Kho Mob
2.1 Pretreatment thiab Biochemical Kev Kho Mob
Lub ntsiab txheej txheem ntws ntawm pretreatment thiab biochemical kev kho mob yog lub tsheb khiav tawm ntawm anaerobic reactor → ob-kab mob gora yog ob qho tib si
Lub Tank Regulating thiab hydrolysis tsim cov pa roj tank tau muab faib ua ob pawg raws li txoj cai sau thiab kev ua kom zoo ". Cov hydraulic khaws cia lub sij hawm ntawm txhua qhov kev tswj hwm tank yog 24 teev. Cov Account Hydrolysis tsim lub tank yog tsim los ua kev sib xyaw ua ke plug Flor txoj kev nrog lub sijhawm tuav haujlwm hydraulic ntawm 48 teev. The sludge mass concentration is 5,000-6,000 mg/L, the COD removal rate is 20%-30%, and the volatile acid in the effluent is significantly increased. Wastewater uas yog lom rau cov kab mob anaerobic tsis tau nkag mus hauv chav tsev anaerobic, tab sis ncaj qha nkag mus rau hauv chav aerobic tom qab hydrolysis thiab acidification.
Lub anaerobic chav siv lub siab ua haujlwm sab hauv kev siv hluav taws xob hauv kev ua haujlwm ntawm 3.5 ~ 1 {} {}} kg / (M1MY), muaj lub cim uas muaj zog ntawm 5 000 ~ {{{{} mg / l, ib tus nqi tshem tawm ntawm 70% ~ 78%.
Ob-theem a / o txheej txheem yog "anoxic-aeroxic-Aerobic-Aerrogen concentration ntawm} 350-550 mg / l, aerobic tank chav tsev mlss sludge load ntawm 0.}}. Nitrogen) (hauv cov nitrogen), thiab Mlss ntawm 5, 500-6, 500 mg / l. Sludge rov qab thiab sib xyaw cawv rov qab tau muab.
Because the salt concentration in the wastewater is as high as 12,000-15,000 mg/L, the life cycle of the aerobic sludge is shorter than that of the conventional aerobic activated sludge. Txoj kev txo qis sludge kev tawm txoj kev tau txais los txhawb txoj kev rov ua dua tshiab ntawm sludge thiab tswj nws cov haujlwm. Nyob rau tib lub sijhawm, kab kawm nrog kev ua ntsev rau kev lom neeg ntsev yog ntxiv rau maj mam ua kom muaj cov kab mob ntsev.
Tom qab kev ua haujlwm ruaj khov, lub cim ntawm effluent los ntawm theem nrab shoulentation yog} {} {{{{{{{}}}}}}}%, lub equluent tag nrho Nitrogen yog siab dua li Ammonia nitrogen, e}} mg / l nyob rau hauv cov theem thaum ntxov, thiab nws nyob rau hauv ntau ntawm {9}}, 500 mg / l. Lub effluent los ntawm theem nrab kev ua kom tiav lub tuv hauv lub tank yog nqa mus rau daim membrane kev tswj hwm lub tshuab hluav taws xob.
2.2 Membrane System Txheej Txheem Flow
Hauv kev pom ntawm cov ntsev ntau, siab silicon thiab siab tawv ntawm lub hnub ci ntsa iab + Ntau yam kev kho mob thiab kev txo qis. Lub DTnF concentrated dej yog softened, thiab dtnf tsim cov khoom muaj txiaj ntsig zoo tshaj plaws rau cov khoom siv everys Nyob rau tib lub sijhawm, tus membrane tau siv dej siv rau kev ua haujlwm ntau lawm kom ua tiav xoom tawm ntawm ntau lawm quav dej ntau lawm.
Daim nyias nyias nyias tau muab faib ua 5 ntu: Pom kev, dtro monovalent ntsev confriification, thiab monovalent ntsev ua kom huv si. Cov chaw tsim khoom ntawm lub chaw tsim tshuaj paus hauv lub cev hauv cov kab ke no yog Beijing Tiandiren Ib puag ncig Tea Technology Co., Ltd.
2.3 evaporation thiab crystallization txheej txheem kev kho mob system
Thaum xaiv cov evaporation thiab crystallization txheej txheem, nws yog ib qho tsim nyog los xav txog cov khoom siv ntawm cov ntsev crystallized monovalent Hauv txoj haujlwm no, MVR ntaus ntawv yog siv los ua kom yaj ntawm Monitorate ntsev, thiab peb-cov nyhuv evaporator yog siv los kev ntsev ntau yam.
Cov cuab yeej txhawb nqa ntawm MVR ntaus ntawv suav nrog chav kub compressor, ua kom poob zaj duab xis evaperator (ob-theem kev sib hloov, centtrifugizer, centtrifugizer, centtrifugizer, centtrifuge, centtrifuge, centrifugized txaj tshuab, thiab tshuab lub tshuab ntim khoom. Cov kua sib tiv tauj ib feem ntawm MVR ntaus ntawv yog ua los ntawm titanium (TA2), thiab kev tsim muaj peev xwm ua tau yog 12 m3 / h.
Cov cuab yeej txhawb nqa ntawm peb-cov txiaj ntsig evaporation muaj cov tshuab hluav taws xob kub, peb-centtraper, centrraper qhuav, thiab gangue sua teb. Cov kua sib tiv tauj ib feem ntawm peb-cov nyhuv evaporation ntaus ntawv yog ua los ntawm titanium (TA2), thiab kev tsim muaj peev xwm ua yog 15 m3 / h.
Kev ua haujlwm cov nyhuv ntawm membrane system thiab evaporation crystallization system
3.1 Cov Txom Nyem ntawm daim nyias nyias
3.1.1 Softening System
Daim mem tes ua haujlwm thaum lub sijhawm tso tawm ua ntej lub sijhawm softening, nrog kev tsim lub sijhawm tsim hluav taws xob ntawm lub sijhawm 8.8 h kom ua tiav homogeneity thiab kev sib dhos. Lub hardness thiab tshem tawm cov khib nyiab ntawm lub effluent los ntawm membrane kev tswj cov kev tswj lub tank yog qhov yuav tsum tau ua kom zoo nkauj. Alkali Dosing tank, Hardness tshem tawm tank, sib txawv ntawm lub tank, lub siab ua kom muaj zog tank, lub siab ua kom lub taub hau lim tau teeb tsa. Los ntawm kev ntxiv cov kua alkali, soca tshauv lossis kua qaub los kho cov calcium thiab magnesium hardness thiab carbonate alkalinity nyob rau hauv cov dej nyoos; PAC thiab PAM tau ntxiv rau qhov sib cais tank rau hauv cov khib nyiab thiab adsorb tshem tawm cov khib nyiab, thiab lwm yam. Tom qab hais tias, txoj kev ua luam dej ua haujlwm tau txo qis los ntawm cov lim lim ntau thiab tswj tau hauv qab 5 NTU.
Inlet dej hardness yog 300 ~ 1 000 mg / l. Tom qab softening kho, thawj zaug tag nrho hardness qis dua 50 mg / l, thiab qhov nruab nrab tag nrho hardness yog tsis pub dhau 15 mg / l; Qhov chaw muag khoom muag muag muag ua tau raws li cov ntawv sau ua haujlwm hauv Inlet dej (tsawg dua lossis sib luag rau 200 mg / l). Raws li lub hardness nyob rau hauv cov ntau lawm wastewater maj nce ntxiv, cov kev kho cov khoom muag muag tau hloov kho zoo heev. Cov teeb meem muaj peev xwm ntawm kev muag khoom muag:
1) Kev siv kua alkali thiab dej qab zib tshauv kom tshem tawm tag nrho cov hardness ua rau lub alkalinity nyob rau hauv cov dej piv txwv kom nce. Ua ntej thiab tom qab muag muag, lub alkalinity nce los ntawm 500 ~ {4}}}}}}}} Kuv tus coj zais rau qhov ntsuas ntawm daim nyias nyias module;
2) Qhov muag muag thiab hardness tshem tawm cov txheej txheem qhia ntsev, thiab kev coj ua los ntawm {} {} {2}} μs / cm.
3.1.2 DTLRO System
DTLRO Membrane yog ib qho dav channel yob rov qab osmosis membrane nrog anti-polling. Nws cov qauv yog nruab nrab ntawm yob membrane thiab lub foob pob ua paug. Nws yog tsim ntawm cov tshuaj uas organic organic thiab daim phiaj yas. Vim yog cov khoom sib khi tshwj xeeb, nws tuaj yeem tiv thaiv ntau dua siab. DTLRo ua ntej-concentrates siab-ntsev quav dej los ntawm kev cuam tshuam tag nrho cov ntsev rau hauv. Cov dej muaj zog tau los ntawm kev sib cais yog qhov siab-siab xyaw brine, thiab cov dej huv yuav siv tau cov dej rov qab. Lub peev txheej tsav dej ntawm DTLRO yog 125 M3 / h, cov tsim kev tsim khoom yog 76%, thiab cov tsim kev tsim dej inlet nyem yog 6.5 ~}} mpa; Daim ntawv membrane kem yog M0224, 7.5 Mpa M8, cov kev tsim khoom Cov dej tsim los ntawm ntau-media tshaj tawm cov txheej txheem muag khoom ntawm cov dej kub tsawg dua lossis sib npaug los ntawm ob-phaj cov cua sov (5} μm) kom tshem tawm cov impurities zoo hauv dej. Tom qab ntxiv cov tshuaj tua kab mob, nws nkag mus rau hauv DTLRO macrule.
Qhov kev tshaj tawm ntawm DTLRO Inlet dej yog 20, {1}}}}}}}}}}} mg / l. The conductivity of the membrane concentrated water rises to 55,000~70,000 μS/cm, and the mass concentration of Cl- rises to 20,000~31,000 mg/L, while the conductivity of the DTLRO produced water drops to 1, {000} ~ 3, {21}} μs}}}} thiab tus kheej tsis desalinate lossis txeej. Tus nqi desalination ntawm DTLRO nce 88% ~ 95%, thaum cov dej rov qab dej yuav 70% ~ 78%. Daim ntawv membane ua cov dej rau cov dej sib xyaw, thiab DTLRO concentrated dej nkag mus rau hauv lub DTNF Salf Castation.
3.1.3 DTNF system
Lub DTNF MiFBrane yog ib qho Disc-Raj Nanofiltration membrane, cov khib nyiab luv, thiab cov khau loj, thiab cov tawv nqaij tawv, thiab cov tawv ntoo thiab cua hlob. Nws tsis yooj yim rau txhaws qhov membrane pores thiab yog siv los cais monovalent thiab devalent ntsev ions; Lub DTNF memrbrane Inlet dej yog DTLRO concentrated dej. Cov dej muaj txiaj ntsig tau los ntawm kev sib cais muaj cov ntsev uas muaj kev sib cais, thiab sab dej sab muaj cov ntsev siab. Tag nrho cov dej tsim muaj peev xwm ntawm lub DTNF MiFBRANE yog 3 M3 / h, tus tsim kev tsim cov khoom tsim yog 80%, thiab cov qauv dej tsim kev tsim tawm yog 7.0 mpa; Daim ntawv Membrane kem yog M0060, 7.5 MPA cheeb tsam, daim nyias nyias ntawm daim nyias nyias yog 10.40 L / (M2CHA L / (M2CHA L / (M2CHA L / (M2CHA L / (M2CHA L / (M2CHA L / (M2CHA L / (M2CHA L / (M2CHA L / (M2CHA L / (M2CHA L / (M2CHA L / (M2CHA L / (M2CHA L / (M2CHA L / (M2CHA L / (M2CHA L / (M2CHA L / (M2CHA L / (M2CHA L / (M2CHA L / (M2CHA L / (M2CHA L / (M2CH HACT) Daim mem tes ua rau cov khoom siv tshuaj txhuam thiab ntxuav cov cuab yeej siv tau nruab kev tsis tu ncua ntxuav cov fouling ntawm daim nyias nyias. Lub kaw lus flushing siv nws tus kheej cov dej kev ntxuav kom tshem tawm cov neeg muaj kuab paug kom tshem tawm cov pa mis acidan kom tshem tawm cov pa phem rau ntawm daim nyias nyias.
Qhov kev tshaj tawm ntawm DTNF ntau lawm dej sab yog ib qho zoo ib yam li ntawm daim nyias nyias pas dej, nrog kev tsis sib haum xeeb. Nyob rau hauv lub sijhawm nyob rau hauv kev ua haujlwm ruaj khov, qhov kev ua haujlwm ntawm daim nyias nyias muaj 20, {}}}}} mg / l. Cov dej ntau lawm uas hla dhau ntawm daim nyias nyias muaj cov ntsev uas tsuas yog hla cov ntsev (na2so4), thiab DTNF tau ua tiav cov ntsev sib cais. Nyob rau tib lub sijhawm, DTNF membrane kuj tseem muaj kev cuam tshuam cov} mg / l), yog li cov khoom lag luam ntawm cov ntsev ntau dua li ntawm cov khoom lag luam Zoo, thiab cov lus teb muaj suab quaj cov khoom muaj ntau dua impurities thiab muaj kev coj dawb huv me ntsis.
3.1.4 DTRO System
DTRO YOG DISC-RAJ ROV QAB OSMOSISH MEMBRANE, Txais DTNF Cov Ntsev Ntsev, thiab rov qab siv cov dej membrane, thiab rov qab ua kom dej ntshiab raws li cov dej ntshiab. Cov dej tsim muaj peev xwm tsim tau muaj peev xwm ntawm DTRO membrane system yog 24 m3 / h, tus qauv tsim khoom tsim yog 60%, thiab cov tsim kev tsim yog 12 mpa; Daim ntawv membrane kem yog M0223, 12 MPA qib, thaj chaw membrane ntawm ib membrane Flux yog 9.57 L / (M2HACH H), 160 txhua; Nruab nrog kev caij twj tso kua mis nrog lub taub hau ntawm 45 m thiab lub siab siv siab nrog ua haujlwm siab ntawm 12 MPA kom tau raws li cov kev ua haujlwm hauv kev ua haujlwm.
Qhov kev tshaj tawm ntawm DTRO membrane inlet dej yog 50, 000} ~}}} μs / cm. Tom qab kev rov hais dua los ntawm daim nyias nyias, qhov kev coj ua ntawm cov dej muaj zog nce rau 90, {} ~}} μs / cm. Tus nqi dej rov qab tiag tiag yog 45% ~ 55%, thiab kev hloov pauv hloov ntawm daim nyias nyias muaj nyob hauv dej thiab cov dej zoo ib yam nkaus. DTRO MAILANE paub txog kev rov ua ntsev kom zoo nkauj, thiab daim nyias nyias muaj qhov tsis muaj ntsev vim yog qhov quav ntawm cov membrane. Qhov kev ua tau zoo yog hais txog 2, {13 {13}} ~ 4,500 μ} / cm, thiab qhov tseeb tiag tiag kev xav tau ntawm 93% ~ 97%.
3.1.5 PURIFICATIONERY
Lub kaw lus lim dej siv cov tshuaj ntxuav kom huv cov tshuaj uas muaj qhov loj me ntawm 1 0 0 ~ 400. Kev cuam tshuam kev kawm yog ntawm ultrafiltration thiab rov qab osmosis. Qhov kev tshem tawm ntawm soluble ntsev xws li magnesium sulfate thiab sodium sulfate tuaj yeem ncav cuag 90% 98%, thaum lub sijhawm tshem tawm ntawm cov tshuaj chloride tsawg. Hauv txoj haujlwm no, ua kom huv cov hmoov av dtro membrane muaj teeb meem, thiab cov tshuaj tsw qab thiab muaj suab paj nruag ntau ntxiv hauv kev tso tseg. Lub peev txheej tsim muaj lub peev xwm ntawm lub zog ua kom huv yog 9.6 M3 / h, tus qauv tsim kev rov qab muaj ntau dua 90%, thiab tus tsim kev khiav haujlwm siab yog 1.6 mpa; Daim ntawv membrane kem yog S12051, 3.0 MPA qib, thaj chaw membrane yog 37, tus qauv Flux h), 24 kab; Nruab nrog 45 m lub taub hau dej inlet roj thiab ib lub taub hau roj av muaj kuab lom, thiab cov tshuaj tua cov teeb meem ntawm daim nyias nyias Cov ntaub ntawv ua haujlwm tshaj tawm tias kev ua haujlwm ntawm cov dej huv ntawm cov dej khov kho yog 90, {}}}} ~ 65, {33} {33}} μs / cm thiab tso rau cov ntsev divalent ua kom huv.
3.2 Kev ua haujlwm zoo rau kev ua haujlwm ntawm kev siv cov txheej txheem crystallization
Thaum lub sijhawm ua haujlwm ib txwm ntawm cov khoom lag luam evaporational zoo, lub NaCl thiab NA2Os4 tsim los ntawm kev tshawb fawb evaporate. Nacl thiab na2SO4 ntsib cov qauv kev lag luam ntawm cov khoom lag luam tshiab ntsev hauv "Industrial Ecthary Sulfous" (GB / T}).
Tus Nqi Ntsuam Xyuas
4.1 Membrane System Cov Kev Ua Haujlwm Kev Ua Haujlwm thiab Kev Lag Luam
4.1.1 Tus Nqi Ua Haujlwm
Kev ua haujlwm raug nqi feem ntau suav nrog hluav taws xob, kev ua haujlwm thiab cov nqi reachent.
1) Lub peev txheej hluav taws xob: Lub peev txheej tag nrho ntawm txoj haujlwm no yog li 1,5 0 0 kW, thiab lub zog ua haujlwm tiag tiag yog li 1,400 kW. Tus nqi hluav taws xob yog 0.4 yuan / (Kw · H), yog li tus nqi hluav taws xob yog 4.48 Yuan / M3.
2) Tus nqi ua haujlwm: muaj 1 tus neeg hauv kev tswj hwm ncej thiab 12 tus neeg hauv kev ua haujlwm xa tawm. Qhov nruab nrab cov nyiaj hli txhua hli yog 6, {{4 4}} Yuan, yog li cov nqi zog yog}. 87 yuan / m3.
3) Tus nqi tshuaj: Cov tshuaj lom neeg muaj xws li cov kab mob muaj kab mob, ntsuas tus neeg sawv cev, PAM, LEENSE RETAL tus neeg sawv cev, thiab cov tshuaj Magnesium thiab cov leeg roj ntsha Tag nrho cov kev ua haujlwm raug tsim yog 27.78 Yuan / M3.
4.1.2 LAMPREY CAPTION
Kev nqis peev hauv membrane Rhiav thiab pas dej ntawm lub cev yog 10 lab cov haujlwm thiab cov cuab yeej txhawb nqa tau yog 45 lab cov peev txheej ntawm 55 lab yuan.
4.2 cov nqi kev lag luam thiab kev nqis peev ntawm evaporation crystallization system
4.2.1 Cov Nqi Ua Haujlwm
Cov nqi ua haujlwm ntawm cov cuab yeej evapating feem ntau suav cov nqi hluav taws xob, cov nqi du, tsim cov nqi kho mob, thiab cov neeg ua haujlwm raug nqi.
1) Tus nqi hluav taws xob: tag nrho tsim tsim muaj peev xwm ntawm MVR evaporation + peb-}} 0 kw, thiab qhov tseeb kev ua haujlwm lub zog yog 1, {} kw. Hauv kev ua haujlwm tiag tiag ntawm ib hlis, cov khoom siv hluav taws xob tsawg ntawm MVR cov khoom siv hluav taws xob muaj 58,5,413 thiab peb-· KWAHN. Tus ntsuas tus nqi hluav taws xob yog 0.4 yuan / (kew · ha).
2) Cov nqi chav dej: Cov dej Vapor ib zaug ntawm MVR evaporation ntaus ntawv yog 60.3 kg, thiab dej vapor ua ib qho ntawm peb-ever evaporation ntaus ntawv yog 241.6 kg. Chav tsev nqi ntawm chav yog xam ntawm 120 yuan / t.
3) Tus nqi kho tus nqi kho mob: Thaum lub Evaporation Txheej Txheem, MVR tsim 4,710 m3 ntawm condensate, thiab peb-m3 ntawm condensate, uas yog xam ntawm 2 yuan ib tuj ntawm condensate.
4) Tus nqi tiv thaiv Defoamer: cov nqi ua npuas ncauj ntau yog tsim nyob rau hauv peb-{} kg / hli, nrog ib chav ntsuas ntawm 8 yuaan / kg.
5) Lub Evaporation Rhiav muaj 1 txoj haujlwm tswj hwm thiab 12 txoj haujlwm ua haujlwm, nrog rau cov nyiaj hli nruab nrab ntawm 6, {} Yuan / hli rau ib tus neeg.
4.2.2 Kev nqis peev hauv evaporation crystallization txheej txheem theem
Kev nqis peev hauv evaporation Rhiav cov khoom muag yog li 5 lab yuan, kev nqis peev hauv peb-lab yuan, tag nrho 23 lab Yuan.
Xaus thiab zeem muag
5.1 xaus lus
Hauv kev pom ntawm qhov nyuaj hauv kev kho VB12 cov txheej txheem tshuaj ntsuab, cov txheej txheem ntawm kev ua kom muaj zog almebrane thiab siab ntawm "biochemical crystrogen thiab kev pab siv tshuaj VB12 ntau lawm quav dej. Cov ntsiab lus xaus yog raws li hauv qab no:
1) Hauv kev kho mob biochemical kev kho mob ntawm cov dej khib nyiab thiab kev sau ua kom tiav "tau swm los ntawm" kev faib tawm cov tshuaj tiv thaiv kev ua kom zoo dua qub + ob-theem Ao "cov txheej txheem tau saws. Lub anaerobic thiab ob-theem AO cov txheej txheem kho mob soob Lub Cod, Ammonia nitrogen, hardness thiab alkalinical ntawm biochemical effluent tau 400 ~ 30, 400 ~ {{mg / l, feem.
2) Daim nyias nyias cov txheej txheem ntawm "tshuaj softening" rov qab ua kom ntsev sib cais + Tus nqi desalination ntawm DTLRO yog 88% ~ 95%, thiab cov nyiaj rov qab dej rov qab los ntawm 70% ~ 78%; Cov ntsev rov qab tus nqi ntawm DTNF yog li 80%, lub allates yog cov ntsev uas muaj kev npau suav, thiab nkag siab ntsev txog kev ua si tom qab muag muag; DTRO concentrates cov monovalent concentrated brine dua, thiab cov tsim dej nkag los ntawm kev ua kom cov dej ntawm Monovalent, thiab cov neeg rov qab los ntawm kev ua haujlwm ntawm Monovalent Cov dej ntws ntawm DTLRO thiab DTRO ntsib cov qauv siv dej rov qab siv dua tshiab.
3) Kev siv cov pa hluav taws xob siv MVR thiab triple-cuam tshuam cov khoom lag luam ntawm kev ua kom zoo dua lossis muaj ntau yam ntawm kev ua kom zoo dua li ntawm 96%.}.} {{6 {6}} Thiab cov khoom lag luam III thawj-chav kawm hauv GB / t {8}}. Ob lub ntsej muag ci ntsa iab tau muag rau cov peev txheej siv.
4) Cov txheej txheem siv hauv cov phiaj xwm no muab cov ntaub ntawv siv tshuab engineering thiab cov peev txheej siv cov roj ntau thiab high-ammonia nitrogen vb12 cov tshuaj yeeb yaj kiab.
5.2 Cov teeb meem thiab cov zeem muag
Hauv cov txheej txheem ua haujlwm tiag tiag, cov teeb meem txhim kho rau kev kho mob ntawm VB12 kev kho kom zoo nkauj-evaporation crystallization txheej yog raws li hauv qab no:
1) Thaum lub sijhawm ua haujlwm ua haujlwm, muaj qhov tshwm sim ntawm thiaj li 4 2-} kev txhawb nqa hauv cov dej phwj. Hauv kev ua haujlwm tiag tiag ntawm cov evaporation system, High-boiling taw tes cov {{} {} {3}}, thiab cov organic muaj teeb meem nyob hauv leej niam dej hiav txwv. Tom qab 3 xyoos ntawm kev ua haujlwm, cov huab cua confuldration ntawm yog li {5}} Cov ntaub ntawv hauv biogas thiab coj cov khoom siv hluav taws xob ntau ntxiv, thiab muaj teeb meem ntau ntxiv thiab ua kom muaj teeb meem thiab kev kho mob nce ntxiv thiab cov tshuaj tsw qab. Tam sim no, cov txheej txheem txheej txheem ntawm cov txheej txheem yog txhawm rau tshem tawm niam cov kab ke, thiab tsis tshua muaj kev cuam tshuam rau cov kev tswj hwm niam txiv thiab yog li} 4 2- Raws li cov xwm txheej saum toj no thiab teeb meem saum toj no, nws raug nquahu cov papination nrog kev siv cov pa hluav taws xob hauv lub sijhawm "xoom kom tsis txhob muaj ntawm" xoom tawm "cov txheej txheem thev naus laus zis.
2) Hauv kev thov tiag tiag crystallization technology hauv lub teb "Xoom ntawm cov teeb meem kev ua kom muaj zog, thiab lwm yam kev txwv tsis pub muaj cov txiaj ntsig ua lej, thiab lwm yam. Qee cov teeb meem ua haujlwm hauv cov ntawv thov tiag tiag, xav tau cov khoom ua kom zoo dua qub, thiab lwm yam.