Kev lag luam dej pov tseg yog hais txog cov dej khib nyiab thiab cov dej khib nyiab tawm hauv cov txheej txheem ntau lawm, uas muaj cov khoom lag luam tsim tawm, cov khoom lag luam nruab nrab, cov khoom lag luam thiab cov pa phem tsim nyob rau hauv cov txheej txheem ntau lawm, thiab yog qhov tseem ceeb ntawm kev ua kom muaj kuab paug ib puag ncig, tshwj xeeb tshaj yog muaj kuab paug dej.
Cov yam ntxwv ua kom dej tsis zoo thiab kev kho teeb meem ntawm luam ntawv thiab zas xim tsis muaj dej, tsev kho mob tsis muaj dej, tshuab hluav taws xob pov tseg, ntawv pov tseg cov dej khib nyiab, dej phwj tuaj, MSG cov dej phwj tuaj, tshuaj ntxuav cov dej khib nyiab, electrophoresis dej khib nyiab, ntxuav cov dej khib nyiab, fais fab nroj tsuag dej khib nyiab, luam ntawv dej khib nyiab, npias dej khib nyiab, dej khib nyiab , Circuit board board wastewater, starch wastewater, slaughter wastewater thiab coking wastewater tau qhia cais hauv qab. Txoj kev kho txoj kev kho yuav qhia rau koj tom qab.
★Ua cov dej khib nyiab
Cov dej khib nyiab los ntawm luam ntawv thiab zas xim muaj cov yam ntxwv ntawm cov dej loj, cov ntsiab lus ntawm cov pa phem, muaj xim tsaus, alkalinity thiab hloov loj ntawm cov dej tsis zoo, thiab yog ib hom kev ua dej khib nyiab uas nyuaj los kho. Ntawm lub sam xeeb ua ntej theem (suav nrog searing, desizing, kub npau, tshuaj dawb thiab ua kom zoo), dej khib nyiab los ntawm kev thim rov qab, rhaub dej, tshuaj dawb thiab ua kom tawm mus; cov txheej txheem dyeing tshaj tawm lub tshuab zas xim; cov txheej txheem luam ntawv tso tawm cov ntawv luam tawm dej khib nyiab thiab dej xoom; thiab cov txheej txheem tshuaj tua kab mob tiav cov dej tsis huv. Dyeing wastewater yog sib tov ntawm cov kev hais txog dej khib nyiab sab saum toj, lossis cov dej khib nyiab uas tsis sib thooj dua li cov tshuaj ntxuav cov dej khib nyiab.
★Cov khib nyiab hauv tsev kho mob
Cov dej tsis huv hauv tsev kho mob yog qhov dej paug tawm ntawm cov tsev kho mob (dav dav, tshwj xeeb thiab lwm yam tsev kho mob) rau qhov chaw ntuj lossis rau cov kav dej hauv nroog. Qhov ua tau zoo ntawm cov dej sib txawv nyob ntawm seb qhov loj thiab lub tsev kho mob thiab thaj av nws tau nyob. Tus nqi ntawm cov dej phwj mus tawm rau ib lub txaj ib hnub yog li 200-1000L. Cov pa phem muaj nyob rau hauv cov dej phwj hauv tsev kho mob yog: cov kab mob (cov kab mob cab, cov kab mob, cov kab mob, thiab lwm yam), cov teeb meem organic, ntab thiab tshem tawm cov khib nyiab, cov pa paug ntawm cov pa phem, thiab lwm yam. ntau tshaj 10 ^ 8 / mL.
★Kev siv tshuab dej khib nyiab
Qhov muaj pes tsawg leeg ntawm cov tshuab hluav taws xob tsis huv yog qhov nyuaj heev. Ntxiv nrog rau cov cyanide-muaj (CN-) dej khib nyiab thiab cov kua qaub-cov hauv paus pov tseg, cov hlau tsis muaj dej ntau yog qhov ua kom muaj kev cuam tshuam ntawm cov dej khib nyiab rau kev lag luam electroplating. Cov hlau tsis huv hauv dej tau faib raws cov khoom siv hlau hnyav uas muaj nyob hauv cov hlau pov tseg hnyav, uas feem ntau yuav muab faib ua chromium (Cr) dej khib nyiab, npib tsib xee (Ni) dej khib nyiab, cadmium (Cd) dej khib nyiab, tooj liab (Cu) dej khib nyiab, zinc ( Zn) dej khib nyiab, kub (Au) dej khib nyiab, nyiaj (Ag) dej khib nyiab thiab lwm yam.
★Ntawv ua dej khib nyiab
Daim ntawv kev lag luam yog kev siv hluav taws xob ntau, kev siv khoom, yog ib qho muaj kev lag luam hnyav ib puag ncig, nws cov pa phem ntawm cov pa paug pov tseg, uas COD, tshem tawm cov khib nyiab (SS) cov ntsiab lus siab, cov xim loj.
Kev siv dej tsis huv los daws qhov teeb meem tseem ceeb: daim ntawv pov tseg cov dej khib nyiab SS, COD siab siab, COD yog tsim ntawm cov tsis muaj kuab COD thiab yaj COD ua ob ntu, feem ntau tsis yog soluble COD tso nyiaj rau feem ntau ntawm tag nrho cov sib xyaw ntawm COD, thaum dej tsis huv SS yog tshem tawm, feem ntau ntawm cov tsis-soluble COD raug tshem tawm tib lub sijhawm. Yog li ntawd, qhov teeb meem tseem ceeb uas yuav daws tau nyob hauv ntawv pov tseg thiab ntawv pov tseg kev lim dej yog kev tshem tawm ntawm SS thiab COD
★Tannery Kev Khib Nyiab
Tam sim no, kev tsim cov tawv kev lag luam feem ntau suav nrog ntau theem xws li degreasing, liming, muag muag, pleev xim, ziab, ua kom tiav, ua tiav, thiab lwm yam. tshuaj lom cov roj ntsha xws li roj roj, collagen, tsiaj thiab cog cov roj, cov organic thiab inorganic solids, sulfides, chromium, ntsev, surfactants, dyes, thiab lwm yam. 1000-2000mg / L, SS 2000-4000mg / L, pH 8-11. Cov yam ntxwv ua kom dej zoo ntawm cov khoom sib xyaw ua ke ntawm kev lag luam tawv yog: CODcr rau 3000-4000mg / L, BOD5 rau 1000-2000mg / L, SS rau 2000-4000mg / L, pH tus nqi ntawm 8-11.
Cov dej khib nyiab tsuas yog los ntawm kev npaj ua ntej-tanning, tanning thiab lwm ntu kev ua ntu ntub. Cov dej lim paug ntau tshaj plaws yog cov dej tsis huv, lim dej tsis huv, thiab cov dej lim dej ua rau chrome, uas suav txog 50% ntawm tag nrho cov dej khib nyiab, tab sis muaj cov kuab paug ntau. Cov zauv feem ntawm ntau cov pa phem hauv tag nrho cov ntim yog: 80% ntawm CODcr, 5% ntawm BOD, 70% ntawm SS, 93% ntawm sulfides, 50% ntawm sodium chloride, thiab 95% ntawm chromium tebchaw.
Tannery dej khib nyiab muaj tus cwj pwm hauv qab no.
(i) Muaj kev hloov pauv ntau hauv cov dej thiab cov ntau ntau.
② zoo biocompatibility.
(iii) Cov kev kub siab ntawm cov khib nyiab uas tau muab tshem tawm, uas yog cov lwj thiab ua kom muaj kuab paug ntau.
Water Cov dej khib nyiab muaj cov tshuaj lom xws li S2- thiab chromium.
★MSG khib nyiab
Qhov siab siab ntawm cov dej khib nyiab cov organic uas tau tsim hauv cov txheej txheem ntawm MSG ntau lawm yog hais txog leej niam cov kua cawv tom qab rho tawm ntawm glutamic acid los ntawm fermentation si, cov dej tsis zoo ntawm cov dej khib nyiab muaj cov yam ntxwv ntawm" tsib siab thiab ob qhov qis", piv txwv li siab COD, siab BOD, siab sulfate, siab NH3-N, cov kab mob muaj cov kab mob siab, qis kub thiab qis pH. Muaj cov dej khib nyiab hauv chaw pov tseg, da dej kom huv yog qhov tseem ceeb ntawm cov dej hauv nroog pov tseg, muaj cov dej siab, cov organic cov ntsiab lus tsawg, cov dej ntau, thiab cov ntsiab lus phosphorus zoo.
★Tshuaj tua kab Pov Tseg
Tshuaj tua kab tsis huv paug dej muaj kuab lom ntau, COD (kev xav tau cov tshuaj oxygen) tuaj yeem ncav cuag ntau txog txhiab txhiab milligrams ib zaug twg; kev mob lom, ntxiv rau cov tshuaj tua kab thiab cov tshuaj nruab nrab uas muaj hauv cov dej khib nyiab, tab sis kuj muaj phenol, arsenic, muaj mercury thiab lwm yam tshuaj lom thiab muaj ntau cov khoom siv roj ntsha uas tsis yooj yim rau thuam; lub ntsej muag tsw phem, ua rau tib neeg lub cev ua pa thiab mob ntawm cov leeg. dej tsis zoo, dej tsis ruaj khov.
★Electrophoretic Cov Khib Nyiab
Qhov laj thawj yog vim li cas cov dej ntub ntawm cov xim pleev xim electrophoresis tuaj yeem raug diluted thiab tawg nrog dej yog vim yog qhov tseeb vim tias cov polymer molecular saw muaj qee cov lej ntawm hydrophilic pawg. Piv txwv li, nws muaj cov pab pawg carboxyl (-COOH), hydroxyl pawg (-OH), ether pab pawg (-O-), amino pawg (-NH2), thiab lwm yam. Cov dej-raws li cov khoom tawg tuaj yeem yaj thiab ua dej los ntawm dej. Raws li tus nqi sib txawv ntawm cov dej-disperse cob, nws tuaj yeem faib ua cov xim pleev xim anodic electrophoresis (lossis xim pleev xim anionic electrophoresis) rau cov dej ua kua nrog cov pab pawg carboxyl (-COOH) thiab xim xim cathodic electrophoresis (lossis cathodic electrophoresis xim) rau cov dej ua kua nrog cov amino pawg (-NH2). electrophoretic cov yam ntxwv
Tranp' s cov cua sov ua kom sov tau siv rau hauv ntau thiab ntau qhov chaw, tshwj xeeb tshaj yog peb cov phaj ua kom sov cov cua sov, lub plhaub thiab lub raj cua hloov cov cua sov thiab cov cua kub yam kom sov.