Tube Membrane

 

 

Cov yam ntxwv ntawm siC membrane

Siab zog thiab kub stability:JMFILTEC tube membrane boasts ib qho tshwj xeeb hardness thiab txhua yam muaj zog, ua rau nws muaj peev xwm ntawm enduring siab siab thiab hnyav loads. Qhov tseem ceeb, nws nthuav tawm qhov ua tau zoo heev rau qhov kub thiab txias, ua rau cov khoom khaws cia nws ruaj khov thiab lub zog txhua yam txawm tias nyob hauv qhov chaw kub kub uas qhov kub tuaj yeem ncav cuag 1000 ~ 1500 degree. Cov yam ntxwv tshwj xeeb ntawm daim nyias nyias ua rau nws yog cov khoom siv zoo tshaj plaws rau cov ntawv thov uas xav tau kev ua haujlwm siab hauv cov xwm txheej hnyav.

 

Siab porosity:Nws muaj peb-dimensional mesh qauv hauv silicon carbide ceramic membrane, uas ua rau muaj ntau qhov hws ntom ntom hauv nws thiab thaj chaw siab tshwj xeeb.

 

Zoo heev thermal conductivity:Silicon carbide muaj cov thermal conductivity zoo heev, uas ua rau silicon carbide ceramic membrane cov khoom siv tau zoo heev hauv qee qhov kev siv uas yuav tsum muaj thermal conductivity, xws li cov khoom siv hluav taws xob thiab cov ntsuas kub siab.

 

High flux:Vim nws cov qauv pore tshwj xeeb, silicon carbide ceramic membranes tuaj yeem ua tiav qhov pom ntau dua.

 

Zoo tshuaj stability:Silicon carbide ceramic membranes tuaj yeem ua haujlwm ruaj khov rau lub sijhawm ntev hauv thaj chaw tshuaj lom neeg nyuaj.

Corrosion kuj:Silicon carbide ceramic membranes muaj kev tiv thaiv siab rau ntau cov roj corrosive thiab kua, ua rau lawv ua tau zoo nyob rau hauv corrosive ib puag ncig xws li acid thiab alkali kev kho mob hauv kev lag luam tshuaj. Silicon carbide yog covalent compound thiab tsis yooj yim rau cov kua qaub thiab alkalis, yog li nws tiv taus cov acids thiab alkalis, kub kub, thiab tshuaj lom neeg corrosion.

 

Hluav taws xob rwb thaiv tsev:Silicon carbide ceramic membranes feem ntau muaj cov hluav taws xob zoo hluav taws xob, uas yog qhov tseem ceeb tshwj xeeb hauv qhov chaw kub thiab txias, ua kom lawv ruaj khov hauv cov ntawv thov uas yuav tsum tau muaj hluav taws xob rwb thaiv tsev.

 

High hydrophilicity thiab oleophobicity:Qhov saum npoo ntawm silicon carbide ceramic membranes muaj hydrophilicity zoo, uas yog qhov zoo rau kev pom ntawm aqueous media. Nyob rau tib lub sijhawm, nws cov oleophobicity ua rau nws cais cov roj ntawm emulsions, yog li nws ua lub luag haujlwm tseem ceeb hauv kev kho cov dej khib nyiab thiab cov dej khib nyiab.

 

High filtration raug:Silicon carbide ceramic membrane tuaj yeem ncav cuag microfiltration thiab ultrafiltration qib, tshem tawm cov khoom, cov roj tee, emulsions thiab cov khib nyiab tshem tawm.

 

Tsis muaj kuab paug:Silicon carbide ceramic membrane yog cov khoom siv ntsuab, ib puag ncig tus phooj ywg, thiab yuav tsis tsim cov pa phem thib ob.

 

Muaj zog antimicrobial khoom:Cov kab mob tsis tuaj yeem nyob hauv nws, thiab nws tuaj yeem siv rau hauv biology, tshuaj, zaub mov thiab lwm yam haujlwm.

• Ntxuav thiab concentration ntawm nano hmoov
• Roj-dej sib cais (oilfield reinjection dej, kua tsim kev puas tsuaj rov tsim dua tshiab)
• Cov khoom sib cais
• Cov kua dej sib cais nrog cov ntsiab lus siab (mine dej, lom fermentation broth)
• Pom nyob rau hauv hnyav tshuaj ib puag ncig (acid purification, nano hmoov catalyst rov qab)

Coal mine dej yog ib qho tseem ceeb unconventional water source. Kev siv cov peev txheej ntawm kuv cov dej yog qhov tseem ceeb heev los daws qhov tsis txaus ntawm cov peev txheej dej thiab kev tiv thaiv ib puag ncig hauv thaj chaw mining. Cov yam ntxwv thiab cov dej zoo ntawm kuv cov dej tau txheeb xyuas, thiab cov thev naus laus zis kho tseem ceeb ntawm cov dej sib txawv ntawm kuv cov dej xws li tshem tawm cov khib nyiab, cov ntxhia hauv siab, acidic thiab cov pa phem tshwj xeeb raug tshuaj xyuas. Cov yam ntxwv thiab cov teeb meem uas twb muaj lawm ntawm txhua txoj kev kho mob tau sau tseg. Feem ntau kuv cov dej muaj qee yam ntawm cov khib nyiab tshem tawm, thiab cov dej zoo thiab qhov ntau sib txawv heev. Kev siv zog yuav tsum tau ua los txhim kho cov nyhuv ua ntej sedimentation ntawm underground water tanks thiab av regulating tanks, txhim kho thiab txhim kho underground mine dej kho tshuab, thiab muab automation thiab txawj ntse kom ua tiav kev ua haujlwm tsis muaj neeg siv; Nrog rau kev nce qib ntawm high-mineralization mine dej, nws cov thev naus laus zis kev kho mob tau dhau los ua kev tshawb fawb tsom mus rau hauv kev kho dej ntawm kuv cov dej. Pretreatment yuav tsum tau ntxiv dag zog, kev tshem tawm silicon zoo thiab hardness tshem tawm technology yuav tsum tau tsim, lub zog rov qab pab kiag li lawm yuav tsum tau qhia, thiab ntsuab zog-txuag coupling desalination tshuab yuav tsum tau tsim nyob rau hauv ua ke nrog nrog tshiab zog thiab tauj dua tshiab zog. Cov txheej txheem xoom-emission yuav tsum tau ua kom zoo tag nrho kom txo tau tus nqi ntawm kev siv cov ntsev ntsev ntau ntxiv; acidic thiab tshwj xeeb kuab paug rau kuv cov dej yog qhov nyuaj hauv kuv cov dej kho tam sim no. Kev faib cov txheej txheem kev kho kom zoo yuav tsum tau txais kev pom zoo los tshawb txog cov txheej txheem sib txuas thiab kev tswj xyuas kev kho kom zoo. Raws li cov kev taw qhia ntawm lub teb chaws txoj cai, mine dej kho tshuab yuav tsim nyob rau hauv cov kev taw qhia ntawm ntau zog txuag, high efficiency, txawj ntse thiab ib puag ncig tiv thaiv.

1.1 Qhov chaw ntawm kuv cov dej

Coal mines yog ib qho tseem ceeb ntawm cov khoom siv ntxhia nplua nuj nyob hauv cov pob zeb hauv av sedimentary, nrog rau kev sib txuam ntawm cov coal seams, aquifers thiab impermeable txheej. Coal mine dej feem ntau yog los ntawm cov dej hauv av hauv lub ru tsev aquifer, sandstone fissures, qhov tsua thiab goafs, nrog rau cov dej saum npoo infiltrating los ntawm sab saum toj pob zeb txheej, aquifers thiab fissures ntawm thee-bearing strata, thiab ib tug me me ntawm cov dej khib nyiab tsim los ntawm lub siv cov hydraulic txhawb nqa, cov cuab yeej ua kom txias, thiab cov dej txau kom txo cov plua plav thaum lub sijhawm mining.

1.2 Cov yam ntxwv ntawm kuv cov dej zoo
Qhov zoo ntawm kuv cov dej feem ntau yog nyob ntawm qhov qub dej zoo ntawm cov dej hauv av, thiab cuam tshuam los ntawm ntau yam xws li cov hmoov av hmoov av, pob zeb hmoov av hauv qhov, thiab roj, emulsions, pov tseg thiab tib neeg excrement tawm los ntawm kev ua haujlwm mining, ua rau pom qhov sib txawv. nyob rau hauv dej zoo ntawm cov dej sib txawv kuv. Raws li qhov zoo ntawm kuv cov dej, nws feem ntau muab faib ua cov teeb meem tshem tawm mine dej, siab mineralization mine dej, acidic mine dej thiab kuv cov dej uas muaj cov pa phem tshwj xeeb.

Raws li cov yam ntxwv ntawm kev tsim cov thee, kuv cov dej yog thawj zaug khaws cia rau hauv cov dej hauv av, uas feem ntau ntws tawm thaum hmo ntuj thaum hluav taws xob tsawg, thiab tsis ntws tawm thaum nruab hnub thaum hluav taws xob siv hluav taws xob siab. Yog li ntawd, qhov zoo thiab qhov ntau ntawm kuv cov dej sib txawv heev nyob rau hauv tib hnub, uas kuj yog ib qho ntawm cov yam ntxwv tseem ceeb ntawm kuv cov dej.

2.1 Kev kho tshuab rau kuv cov dej uas muaj cov khoom raug tshem tawm
Cov cuab yeej kho mob rau kuv cov dej uas muaj cov teeb meem tshem tawm hauv kuv lub teb chaws yog qhov paub tab, thiab feem ntau yog siv coagulation sedimentation (paub meej) + txheej txheem pom.

Ntxiv nrog rau cov txheej txheem coagulation sedimentation (paj meej) thev naus laus zis, kev kho thev naus laus zis rau mine dej uas muaj cov teeb meem raug tshem tawm kuj suav nrog cov tshuab hnyav nruab nrab coagulation sedimentation technology, supermagnetic sib cais tshuab, high-efficiency cyclone technology thiab goaf sedimentation filtration technology. Ntawm lawv, goaf sedimentation filtration technology yog txwv los ntawm ntau yam hydrogeological mob thiab tsis yog universal. Cov cuab yeej kho mob uas twb muaj lawm feem ntau muaj teeb meem xws li hneev taw loj, cov txheej txheem ntev, ntau npaum li cas, kev ua haujlwm nyuaj thiab kev saib xyuas, thiab cov dej tsis ruaj tsis khov. Tus kws sau ntawv cov kev tshawb fawb pab pawg tau ua tiav cov txheej txheem kev tsim kho tshiab thiab tau npaj cov txheej txheem luv luv thiab kev kho kom zoo rau mine dej nrog polyceramic membrane ua lub hauv paus. Cov tshuab no tsis tas yuav ntxiv cov tshuaj thiab hloov cov tshuaj coagulation sedimentation pom. Cov teeb meem raug tshem tawm hauv cov kua dej yog tsawg dua 1 mg / L. Txhawm rau daws cov teeb meem ntawm cov coagulant ntau npaum li cas thiab tsis zoo coagulation thiab sedimentation nyhuv nyob rau hauv lub siab tshem tawm cov teeb meem mine dej ntawm Dashu Village Mine, cov txheej txheem thib ob coagulation thiab sedimentation tau saws, thiab turbidity tshem tawm tus nqi mus txog ntau tshaj 99%, thiab PAC ntau npaum li cas raug txo los ntawm 25% piv nrog cov pa coagulation. Cov txheej txheem microflocculation-ultrafiltration pipeline tau siv los kho cov dej hauv kuv li kev ua haujlwm zoo. Thaum cov koob tshuaj PAC yog 6 mg / L, cov dej turbidity qis dua 0.07 NTU. Raws li cov txiaj ntsig ntawm kev tshawb nrhiav ntawm qhov chaw, qhov ua ntej sedimentation cuam tshuam ntawm cov dej hauv av thiab cov av tswj lub tank yog qhov tseem ceeb heev rau kev ruaj khov thiab ua haujlwm tau zoo ntawm cov txheej txheem tom ntej. Nyob rau hauv lub neej yav tom ntej, yuav tsum tau siv zog los txhim kho lub pre-sedimentation muaj peev xwm, tsim nyog xaiv cov txheej txheem tom ntej, thiab optimize cov txheej txheem tsis.

2.2 High-mineralization mine dej kho tshuab

High-mineralization mine dej kev kho mob feem ntau muab faib ua plaub theem raws li cov txheej txheem ua ntu zus: pretreatment, sib sib zog nqus kev kho mob, concentration kho thiab evaporation crystallization.

2.2.1 Pretreatment txheej txheem

Lub hom phiaj ntawm pretreatment ntawm high-mineralization mine dej yog tshem tawm cov teeb meem thiab hardness, thiab tsis txhob scaling thiab fouling nyob rau hauv lub tom ntej desalination txheej txheem. Lub tshuab tshem tawm cov khib nyiab tshem tawm yog tib yam li hauv Tshooj 2.1. Lub hardness tshem tawm technologies muaj xws li cov tshuaj neeg sawv cev txoj kev (cov neeg sawv cev muaj xws li sodium carbonate, sodium bicarbonate, txiv qaub, thiab lwm yam), ion pauv txoj kev, noob txoj kev thiab scale inhibitor technology. Hauv kev siv engineering tiag tiag, tus neeg sawv cev muag muag thiab tshem tawm cov khib nyiab tshem tawm yog ua tiav ib txhij, thiab siv nrog ion pauv softening, thiab tseem ua ke nrog cov tshuab membrane los txhim kho cov dej zoo. Tam sim no, qhov teeb meem tseem ceeb hauv pretreatment yog qhov tsis zoo ntawm silicon tshem tawm cov nyhuv. Txawm hais tias cov txheej txheem softening yog muab tso rau hauv cov dej nyoos pretreatment theem lossis rov qab osmosis concentrated water treatment theem yuav tsum tau txiav txim siab los ntawm kev sib piv kev lag luam thiab kev lag luam raws li TDS thiab hardness water quality indicators of the mine water raw water.

2.2.2 txheej txheem kev kho mob tob

Cov txheej txheem kev kho mob sib sib zog nqus yog nyob rau ntawm desalination, suav nrog rov qab osmosis, electrodialysis thiab electrosorption thiab lwm yam txheej txheem desalination. Feem ntau siv yog ultrafiltration + thim rov qab osmosis ob chav membrane txoj kev. Raws li qhov sib txawv ntawm kuv cov dej, qhov rov qab ntawm qhov rov qab osmosis yog 50% ~ 75%, thiab tus nqi desalination ntau dua 97%; cov ntsev loj concentration ntawm qhov rov qab osmosis ua dej (cov dej tshiab) yog qis dua 1, 000 mg / L thiab rov ua dua rau kev tsim khoom lossis lub neej. Cov ntsev ntsev ntau ntawm cov dej concentrated yog 5, 000 ~ 10, 000 mg / L thiab yuav tsum tau ntxiv concentrated. Qhov teeb meem tseem ceeb ntawm kev kho mob sib sib zog nqus yog qhov teeb meem ntawm cov pa phem hauv cov txheej txheem ob chav membrane. Membrane pollution cuam tshuam rau lub neej ntawm daim nyias nyias thiab cov nqi khiav lag luam. Ua kom muaj zog pretreatment, tswj lub hardness thiab silicon inlet Performance index, thiab optimizing kev khiav hauj lwm tsis yog lub ntsiab kev ntsuas los tiv thaiv daim nyias nyias.

2.2.3 Cov txheej txheem kev kho mob siab

Cov txheej txheem kev kho mob concentration ua rau cov dej concentrated uas tsim los ntawm cov txheej txheem rov qab osmosis hauv cov txheej txheem kev kho mob sib sib zog nqus, ntxiv kom txo cov dej concentrated, thiab nce cov ntsev cov ntsiab lus ntawm cov dej concentrated, thiaj li txo cov peev thiab kev khiav hauj lwm cov nqi ntawm cov evaporation tom ntej. txheej txheem. Cov txheej txheem kev kho mob muaj xws li dej hiav txwv thim rov qab osmosis (SWRO), kev ua haujlwm siab rov qab osmosis (HERO), disc tube rov qab osmosis (DTRO), electrodialysis (ED), steam mechanical recompression (MVR), thiab ntau yam nyhuv evaporation (MED).

Membrane thev naus laus zis yog tsim rau cov concentration ntawm qis concentration brine, thiab thermal txoj kev yog haum rau siab concentration. Txhua lub tshuab concentration muaj qee yam kev txwv. Kev nqis peev loj thiab cov nqi khiav lag luam siab tseem yog cov teeb meem tseem ceeb ntawm cov txheej txheem concentration. Hauv kev siv cov tswv yim, kev txuag hluav taws xob zoo dua, cov pa roj carbon emission txo qhov cuam tshuam tuaj yeem ua tiav los ntawm kev sib txuas ntau yam thev naus laus zis.

2.2.4 Cov txheej txheem evaporation thiab crystallization

Evaporation thiab crystallization yog cov txheej txheem kawg kom cais cov dej thiab ntsev ntawm cov brine siab thiab ua tiav xoom emission. Muaj feem ntau yog MVR, MED thiab ntau theem flash evaporation (MSF) thiab lwm yam txheej txheem. MVR thiab MED tau siv dav hauv kuv lub tebchaws. Kev nqis peev siab thiab kev siv zog ntawm evaporation thiab crystallization txheej txheem yog tus yuam sij rau xoom emission project ntawm high mineralization mine dej. Txoj kev loj hlob ntawm kev nqis peev tsawg thiab kev siv hluav taws xob tsawg ntawm cov txheej txheem tshiab yog kev txhim kho yav tom ntej ntawm cov txheej txheem no.

2.2.5 ntsev sib cais tshuab

Ntsev sib cais tshuab yog txheej txheem tseem ceeb kom ua tiav xoom emission thiab kev siv peev txheej ntawm cov dej ntxhia hauv dej. Lub hom phiaj ntawm kev sib cais ntsev feem ntau yog cais SO4 2- los ntawm Cl-. Muaj ob hom ntsev sib cais: membrane (nanofiltration) ntsev sib cais thiab thermal ntsev sib cais. Nanofiltration ntsev sib cais muaj kev siv hluav taws xob tsawg thiab yooj yim rau kev khiav lag luam, tab sis kev ua haujlwm ntawm ib qho ntsev sib cais yog tsawg. Nws yuav tsum tau ntau ntsev sib cais kom ua tiav ib qho txiaj ntsig. Nws yog feem ntau siv ua ke nrog cov txheej txheem thermal. Raws li qhov loj piv ntawm SO4 2- thiab Cl- nyob rau hauv cov dej nyoos, coupling ob lub ntsev sib cais technologies thiab optimizing cov ntsev sib cais cov txheej txheem thiab tsis yog txoj kev loj hlob yav tom ntej.

2.2.6 Kev kho cov cuab yeej tshiab

Cov tsoos high-mineralization mine dej xoom-tso cov txheej txheem thaum kawg siv evaporation crystallization tshuab los hloov inorganic ntsev los ntawm kev daws mus rau lub xeev siv lead ua kom rov zoo. Muaj teeb meem xws li kev nqis peev siab, cov nqi khiav lag luam siab, thiab tus nqi qis ntxiv ntawm cov ntsev inorganic. Bipolar membrane electrodialysis (BMED) yog ib qho tshiab membrane sib cais tshuab uas tuaj yeem siv high-mineralization mine dej concentrate los npaj cov kua qaub thiab alkalis ntawm qee qhov concentration. Cov kua qaub thiab alkali tuaj yeem siv rau hauv high-mineralization mine dej xoom-tso cov txheej txheem thiab cov kev lag luam hauv qab cov saw hlau los txo cov nqi ua haujlwm thiab paub txog qhov tsis yog-theem hloov pauv ntawm cov concentrate. Cov txheej txheem sib xyaw ua ke nrog BMED raws li cov tub ntxhais tuaj yeem paub txog kev kho ntsuab ntawm cov dej ntxhia hauv cov dej ntxhia, thiab muaj cov pa roj carbon dioxide emission txo cov nyhuv thaum ua ke nrog cov khoom siv hluav taws xob photovoltaic, nrog kev lag luam zoo thiab kev sib raug zoo.

2.3 Acid mine dej kho tshuab

Muaj ntau txoj kev kho mob rau cov kua qaub mine dej. Los ntawm qhov kev xav ntawm theem kev kho mob, nws tuaj yeem muab faib ua qhov chaw tswj kev siv thev naus laus zis thiab thev naus laus zis thev naus laus zis, cov thev naus laus zis kho tshuab tuaj yeem muab faib ua cov cuab yeej siv kho mob thiab kev siv tshuab ua haujlwm; Raws li cov txheej txheem ntawm kev txiav txim, nws tuaj yeem muab faib ua cov txheej txheem ntawm lub cev, cov txheej txheem tshuaj thiab cov txheej txheem lom neeg. Tam sim no, txoj kev paub tab thiab feem ntau siv tshuab tseem yog txiv qaub neutralization txoj kev.

Ntau cov kua qaub mine dej tau tso tawm los ntawm kev kaw thiab cov mines tsis muaj tswv, muaj cov ntsiab lus ntawm cov hlau thiab manganese siab, uas ua rau muaj kev nyuaj ntawm kev kho mob, thiab yog qhov teeb meem loj tshaj plaws hauv kev kho cov kua qaub mine dej. Hauv cov thev naus laus zis uas twb muaj lawm, tshwj tsis yog rau txoj kev nruab nrab, lwm cov thev naus laus zis muaj kev hloov pauv tsis zoo rau cov hlau thiab manganese siab. Xaiv cov thev naus laus zis tsim nyog thiab kev siv cov kev taw qhia raws li cov xwm txheej hauv zos, sib txuas cov cuab yeej tswj kev siv tshuab nrog cov cuab yeej siv kho mob, thiab kev sib txuas ntau cov thev naus laus zis kho mob yuav dhau los ua cov kev taw qhia kev txhim kho ntawm acid mine dej kho.

2.4 Kev kho tshuab rau kuv cov dej uas muaj cov pa phem tshwj xeeb

Kuv cov dej uas muaj cov pa phem tshwj xeeb yog cov fluorine-muaj, muaj hlau, manganese-muaj mine dej, thiab me me ntawm ammonia-nitrogen-muaj mine dej. Raws li qhov sib txawv tshwj xeeb muaj kuab paug, cov kev kho mob sib xws yuav tsum raug xaiv kom ua tau raws li cov qauv emission.

2.4.1 fluoride-muaj mine dej kho tshuab

Rau fluoride-muaj mine dej, feem ntau siv txoj kev kho mob xws li coagulation thiab sedimentation, adsorption thiab membrane txoj kev. Txoj kev coagulation thiab sedimentation muaj qhov zoo ntawm kev ua haujlwm yooj yim, kev kho mob loj thiab cov tshuaj tiv thaiv sai, tab sis nws muaj qhov tsis zoo ntawm cov coagulant ntau ntxiv, tsis muaj defluorination efficiency thiab ntau cov sludge ntau lawm. Txoj kev adsorption muaj qhov zoo ntawm cov dej ntws zoo thiab kev ua haujlwm ruaj khov. Nws yog tam sim no dav siv. Feem ntau siv adsorbent yog activated alumina. Activated alumina yuav tsum tau qhib nrog sulfuric acid ua ntej siv. Tom qab ua kom tiav, lub tshuab ua kom muaj alumina nqa cov sulfate ions sib pauv, uas tuaj yeem hloov pauv cov tshuaj fluoride ions hauv dej. Cov nyhuv defluorination yog zoo dua nyob rau hauv pH ntau ntawm 5 mus rau 8. Lub tshuab txais alumina tom qab tsis ua hauj lwm yog regenerated los ntawm sodium sulfate. Cov txheej txheem ntws yog ntxiv rau kab defluorination adsorption tom qab lim dej hauv daim duab 2; Txawm li cas los xij, txoj kev ua kom muaj alumina adsorption muaj teeb meem xws li tsis muaj peev xwm adsorption, tsis muaj kev tsim dua tshiab thiab nyuaj rau kev pov tseg cov kua regenerated. Txhawm rau daws qhov teeb meem ntawm kev kho tsis zoo ntawm ib txoj kev defluorination ib zaug, cov txheej txheem ua ke ntawm coagulation thiab sedimentation thiab adsorption tau siv los kho cov dej muaj fluoride mine dej hauv thaj tsam sab hnub poob, thiab cov tshuaj fluoride ion tshem tawm mus txog 97.6%. . Membrane sib cais tshuab (rov qab osmosis) kuj tau pom cov txiaj ntsig zoo hauv kev kho cov dej khib nyiab uas muaj fluoride. Los ntawm optimizing tsis, qhov loj ntawm cov tshuaj fluoride nyob rau hauv lub effluent yog tsawg tshaj li 1 mg / L.

2.4.2 Kev kho tshuab rau hlau- thiab manganese-muaj mine dej

Qhov no feem ntau yog tsom rau nruab nrab hlau- thiab manganese-muaj kuv cov dej. Cov kev kho mob muaj xws li ntuj oxidation, tshuaj oxidation, tiv tauj oxidation thiab biological txoj kev.

Kev cuam tshuam los ntawm cov thee mining, cov pa oxygen yaj hauv kuv cov dej yog nplua nuj, thiab coagulation thiab nag lossis daus muaj kev tshem tawm zoo ntawm cov hlau; Kev tshem tawm ntawm manganese yog tsuas yog tsim kom muaj kev sib xyaw ua ke lim membrane ntawm qhov chaw ntawm cov khoom lim, uas yog tshem tawm los ntawm kev sib cuag oxidation pom. Txoj kev kho tam sim no muaj teeb meem ntawm kev ua haujlwm qis hauv kev tshem tawm manganese. Kev tshawb fawb txog cov thev naus laus zis tshiab rau kev sib koom tes thiab kev tshem tawm cov hlau thiab manganese yog qhov kev txhim kho yav tom ntej.

2.4.3 Kho tshuab rau ammonia-nitrogen-muaj mine dej

Txoj kev kho tseem ceeb rau ammonia-nitrogen-muaj mine dej suav nrog breakpoint chlorination, ozone oxidation thiab biological txoj kev. Ob txoj kev chlorination breakpoint thiab ozone oxidation txoj kev siv cov cuab yeej oxidizing ntawm cov reagent ntxiv rau oxidize cov ammonia nitrogen hauv dej rau hauv cov roj nitrogen lossis nitrate ions. Cov txheej txheem ntws yog ntxiv cov oxidant ua ntej cov tshuaj tiv thaiv sedimentation tank hauv daim duab 2. Cov txheej txheem lom neeg yog tias nyob rau hauv qhov kev txiav txim ntawm ntau yam kab mob, cov ammonia nitrogen nyob rau hauv dej thaum kawg generates nitrogen gas los ntawm ib tug series ntawm cov tshuaj xws li nitrification thiab denitrification, yog li ua tiav lub hom phiaj ntawm kev tshem tawm ammonia nitrogen. Cov txheej txheem ntws yog ntxiv cov txheej txheem kev kho mob lom (xws li cov lim dej aerated biological) tom qab lub lim dej hauv daim duab 2. Rau kev kho mob ntawm cov khoom siv qis qis (<2 mg/L) ammonia nitrogen mine water, it is more reasonable to use the oxidation method; while for mine water with a higher ammonia nitrogen mass concentration, biological treatment is an economical and effective method. Research and development of biological treatment technology suitable for the water quality characteristics of mine water is the future development trend.

1) Vim tias feem ntau cov dej hauv kuv cov dej muaj qee yam ntawm cov teeb meem tshem tawm, kev tshem tawm cov teeb meem tshem tawm hauv kuv cov dej yog qhov yooj yim tshaj plaws. Rau kev ua kom huv ntawm cov khib nyiab tshem tawm hauv kuv cov dej, nws raug nquahu kom txhim kho cov nyhuv ua ntej sedimentation ntawm cov dej hauv av thiab cov kav dej hauv av, txhim kho thiab txhim kho hauv av mine dej kho thev naus laus zis, xws li underground water tank anti-silting thiab desilting technologies, siv cov chaw hauv av thiab qhov chaw kom paub txog cov dej hauv av hauv av kom huv thiab qias neeg, dej huv rau hauv lub tsev khaws khoom, txhim kho hnyav nruab nrab sai sedimentation, supermagnetic sib cais, ncaj qha ultrafiltration thiab lwm yam cuab yeej siv, ua tau raws li qhov chaw hauv av thiab kev nyab xeeb, thiab sib txuas automation thiab kev txawj ntse. kom ua tiav kev ua haujlwm tsis muaj neeg siv.

2) Nrog rau lub tswv yim sab hnub poob hloov ntawm cov thee, qhov nyiaj ntawm cov dej ntxhia hauv dej tau nce ntxiv, thiab nws cov thev naus laus zis kev kho mob tau dhau los ua kev tshawb fawb tsom rau hauv kev kho dej hauv kuv qhov kev kho dej. Nyob rau hauv kev saib ntawm cov dej zoo yam ntxwv ntawm high-mineralization mine dej, pretreatment yuav tsum muaj zog, npaum silicon tshem tawm thiab hardness tshem tawm technology yuav tsum tau tsim, desalination technology yuav tsum tau xaiv raws li nyob rau hauv lub zos tej yam kev mob, lub zog rov qab pab kiag li lawm yuav tsum tau qhia, tshiab zog thiab Lub zog tauj dua tshiab (hnub ci zog, hluav taws xob pov tseg, hluav taws xob hauv av, thiab lwm yam) yuav tsum tau ua ke, ntsuab txuag hluav taws xob sib txuas ua ke desalination thev naus laus zis yuav tsum tau tsim, cov txheej txheem ntsev sib cais crystallization yuav tsum tau ua kom zoo, tsis yog theem hloov pauv kev siv thev naus laus zis nrog BMED ua lub hauv paus tseem ceeb. yuav tsum tau txhim kho, xoom-emission txheej txheem yuav tsum optimized tag nrho, thiab concentrated brine goaf cia technology yuav tsum tau siv conditionally los txo cov nqi kho mob ntawm concentrated ntsev pov tseg.

3) Acid mine dej thiab kuv cov dej uas muaj cov pa phem tshwj xeeb yog tam sim no nyuaj kho. Nws raug nquahu kom siv cov cuab yeej siv kev faib tawm, ua haujlwm tau zoo thiab kev coj ua, ua cov kev tshawb fawb ntawm cov khoom siv adsorption tshiab, kev kho mob lom neeg, ecological wetlands thiab coupling txheej txheem, thiab tshawb nrhiav kev kho thiab kev tswj hwm ntuj.

4) Txhim kho cov kev tshawb fawb ntawm cov cuab yeej tseem ceeb tsim cov cuab yeej siv tshuab, tsim cov txheej txheem tshiab membrane sib cais, thiab txuag hluav taws xob txuag sludge dewatering thev naus laus zis kom ua tiav cov txiaj ntsig zoo thiab tus nqi qis ntawm kuv cov dej.

Cim npe nrov: Tuam Tshoj tube membrane manufacturers, lwm tus neeg, Hoobkas