Thaum xav txog kojKev Kho Mob Tso Kho Kom ZooTxheej txheem, pib los ntawm kev txiav txim siab dab tsi koj yuav tsum tau tshem tawm los ntawm cov dej thiaj li yuav tau raws li qhov yuav tsum tau ua raws li kev tawm tsam. Nrog rau kev kho tshuaj lom neeg zoo, koj tuaj yeem tshem tawm cov kabmob thiab cov khib nyiab me me uas tsis muaj cov khib nyiab los ntawm dej, nrog rau cov khib nyiab. Cov tshuaj siv hauv cov dej phwj tuaj yeem muaj xws li: PH RIBULATOR, COAGULANT,Flocculant.
Flocculant
Flocculants tau siv nyob rau hauv ntau hom kev lag luam thiab kev siv los pab tshem tawm cov khib nyiab los ntawm kev siv cov pa paug los yog "flocs" uas ntab rau hauv qab. Lawv kuj tseem siv tau los ua kua qaub muag, mloog zoo sludge thiab dehydrate khib. Ntuj los yog ntxhia flocculants suav nrog cov silica nquag thiab polysaccharides, thaum hluavtaws flocculus muaj feem ntauPolyacrylamide.
Nyob ntawm tus nqi them thiab tshuaj lom neeg muaj pes tsawg leeg ntawm cov dej khib nyiab, cov floccas yuav siv ib leeg lossis ua ke nrog cov coagulants.Flocculants txawv los ntawm coagulantsNyob rau hauv uas lawv feem ntau polymers, whereas coavulants feem ntau yog ntsev. Lawv cov leeg loj (qhov hnyav) thiab them nqi (qhov feem pua ntawm cov nqi me me) tuaj yeem sib luag) tuaj yeem sib npaug ntawm cov dej hauv cov dej thiab lub cev tsis txaus ntseeg. Nyob rau hauv dav dav, anionic flocculants yog siv los cuab cov ntxhia cov ntxhia, thaum cationic flocculants yog siv los cuab cov organic hais.
PH kev tswjfwm
Txhawm rau tshem tawm cov hlau thiab lwm cov paug tsis muaj zog los ntawm cov dej dej los ntawm cov dej khib nyiab, yuav siv lub xov tooj Ph R Tswjfator. Los ntawm kev nce lub ph ntawm dej, thiab ua kom nce tus naj npawb ntawm cov tsis zoo hydroxide ions rau txoj kev them nyiaj nrog cov negroxide ions. Qhov no ua rau lub lim tawm ntawm cov tuab thiab insoluble hlau.
Coagulant
Rau txhua txheej txheem pov tseg kev kho mob uas ua rau cov khib nyiab tshem tawm, co coavulants tuaj yeem sib koom ua ke tsis muaj kev phom sij rau kev tshem tawm yooj yim. Tshuaj lom neeg co coagulants siv rau pretreatment ntawm kev lag luam pov tseg tau muab faib ua ib ntawm ob pawg: organic thiab inorganic.
Inorganic co coeulants yog tus nqi-ua tau zoo thiab tuaj yeem siv rau qhov ntau ntawm cov ntawv thov. Lawv tau tshwj xeeb tshwj xeeb tiv thaiv cov dej nyoos ntawm qee qhov tsis muaj zog, thiab daim ntawv thov no tsis haum rau cov organic chim siab. Thaum ntxiv rau dej, cov tawv nqaij inorgulants los ntawm txhuas lossis hlau nag lossis daus, nqus nws cov dej thiab ua kom huv. Qhov no yog lub npe hu ua "cheb-thiab-flocculate" mechanism. Thaum ua tau zoo, cov txheej txheem nce tag nrho cov nyiaj ntawm sludge uas yuav tsum tau muab tshem tawm ntawm dej. Cov inorganic co coaculans xws li txhuas sulfate, txhuas chloride, thiab Ferric sulfate.
Organic co coeagant muaj qhov zoo ntawm kev siv tshuaj tsawg, me me sludge ntau lawm thiab tsis muaj nqis rau hauv PH ntawm cov tshuaj kho. Piv txwv ntawm cov organic co plawv muaj xws li polydimethyl diallyl ammonium chloride, raws li melamium chloride, raws li melamine, formaldehyde thiab tannins.
Peb txoj kab ntawm flocculants yog tsim los txhim kho cov ntawv thov kev kho kom muaj ntau yam tshuaj ntxuav ua ntau yam tshuaj lom neeg.
Lub sijhawm Post: Feb-15-2023