Ua ntej, txoj kev kho dej phwj feem ntau suav nrog kev kho lub cev thiab kev kho tshuaj.Txoj kev siv lub cev yog siv ntau yam khoom siv lim nrog qhov sib txawv ntawm qhov pore, siv cov adsorption lossis thaiv txoj kev, cov impurities hauv dej raug tshem tawm, qhov tseem ceeb tshaj plaws ntawm txoj kev adsorption yog adsorption nrog cov pa roj carbon activated, txoj kev thaiv yog kom dhau cov dej los ntawm cov khoom lim, kom lub ntim loj ntawm impurities tsis tuaj yeem hla, thiab tom qab ntawd tau txais cov dej huv ntau dua.Tsis tas li ntawd, txoj kev siv lub cev kuj suav nrog txoj kev los nag, uas yog cia cov impurities nrog ib qho me me ntab rau saum npoo ntawm cov dej kom ntses tawm, los yog cov impurities nrog cov feem ntau precipitate nyob rau hauv qhov chaw, thiab ces tau.Cov txheej txheem tshuaj yog siv ntau yam tshuaj los hloov cov impurities hauv cov dej mus rau hauv cov khoom uas tsis tshua muaj kev phom sij rau tib neeg lub cev, lossis cov impurities yog concentrated, txoj kev kho tshuaj yuav tsum siv sij hawm ntev los ntxiv alum rau lub dej, tom qab sau cov impurities hauv dej, qhov ntim loj dua, koj tuaj yeem siv txoj kev pom kom tshem tawm cov impurities.
Calcium chloride, ib qho tshuaj feem ntau siv hauv kev kho dej phwj tuaj, yog cov tshuaj inorganic uas yog ntsev uas muaj cov tshuaj chlorine thiab calcium, ib qho ionic halide.Chloride ions tuaj yeem ua kom tsis muaj dej, tua cov kab mob phem, thiab txo cov dej toxicity.Calcium ions tuaj yeem hloov cov hlau cations uas muaj nyob rau hauv dej, cais thiab cais cov hlau hnyav hnyav ions, thiab tshem tawm cov calcium ion nag lossis daus, uas muaj cov tshuaj tua kab mob zoo thiab ua kom huv.
Cov hauv qab no yog los qhia txog lub luag haujlwm tshwj xeeb ntawm calcium chloride hauv kev kho dej phwj tuaj:
1. Calcium chloride yaj hauv dej tom qab cov tshuaj chloride ion muaj kev ua kom tsis muaj menyuam.
2. Calcium ions tuaj yeem hloov cov hlau cations hauv cov dej ntws, tshwj xeeb tshaj yog nyob rau hauv cov txheej txheem dej khib nyiab uas muaj cov cations hlau.Txhawm rau txo qhov kev puas tsuaj ntawm cov tshuaj lom neeg ntawm cov hlau cations mus rau seem biochemical, calcium chloride yog siv hauv cov txheej txheem ua ntej kom tshem tawm cov tshuaj lom thiab tsis zoo, uas ua lub luag haujlwm tseem ceeb.Yog tias cov tshuaj no siv rau hauv cov dej ntws tawm, cov tshuaj chloride ions ua si lub luag haujlwm ntawm cov kab mob.Calcium ions tsim calcium hydroxide precipitated thiab raug tshem tawm los ntawm nag lossis daus.
3. PH neutralization thiab pre-regulation ntawm acidic dej phwj yeeb nkab network kom ntev kev pab cuam lub neej ntawm cov yeeb nkab network.
Cov txheej txheem thov tshwj xeeb: Tom qab cov dej khib nyiab tau sau rau hauv lub tank tswj, cov dej khib nyiab tau nce mus rau lub tank coagulation los ntawm lub tshuab nqa nqa.Lub coagulation tank tau muab faib ua ob txheej txheem ntawm kev sib xyaw qeeb thiab nrawm sib xyaw, tag nrho plaub theem ntawm cov tshuaj tiv thaiv.Nyob rau hauv lub tank ceev sib tov, sodium hydroxide yog ntxiv rau lub twj tso kua mis los kho cov PH ntawm cov dej sib xyaw hauv lub tank rau 8, thiab cov dej-soluble polyaluminum chloride thiab calcium chloride ntxiv rau tib lub sijhawm.Los ntawm kev ntxiv flocculant polyacrylamide nyob rau hauv lub sib tov qeeb tank, cov tsim calcium chloride hais coagulate nrog ib leeg los ua loj granular floc;Tom qab flocculation, cov effluent ntws mus rau hauv lub tank sedimentation, los ntawm ntuj kev sib haum xeeb kom ua tiav lub hom phiaj ntawm cov khoom-kua sib cais, lub supernatant overflowed los ntawm sab sauv ntawm lub sedimentation tank, thiab ces ntws mus rau hauv lub thib ob coagulation nag lossis daus.Tom qab cov txheej txheem coagulation thiab nag lossis daus kev kho mob, cov dej dhau los ntawm lub hnab lim thiab qhib cov pa roj carbon lim dej rau hauv lub pas dej ua kua qaub nruab nrab ntawm tus tswv sab tom qab dhau qhov kev tshawb pom online ntawm fluoride ions, thiab tom qab ntawd tus nqi pH raug kho thiab tawm mus.Cov dej tsis tsim nyog raug tso tawm rau hauv lub tank txias thiab tom qab ntawd kho.
Post lub sij hawm: Jan-11-2024
