Aluminium sulfate, tshuaj sawv cev raws li Al2 (SO4) 3, yog cov khoom siv dawb crystalline uas feem ntau siv hauv kev kho dej.Thaum txhuas sulfate reacts nrog dej, nws undergoes hydrolysis, tshuaj lom neeg cov tshuaj tiv thaiv nyob rau hauv uas dej molecules sib cais cov compound rau hauv nws cov constituent ions.Cov tshuaj tiv thaiv no ua lub luag haujlwm tseem ceeb hauv ntau yam kev siv, tshwj xeeb hauv kev ua kom huv dej.
Cov khoom tseem ceeb ntawm cov tshuaj tiv thaiv no yog aluminium hydroxyl complex.Cov txheej txheem no yog qhov tseem ceeb hauv kev kho dej, vim nws pab tshem tawm cov impurities ntawm dej.Aluminium hydroxyl complex muaj cov nqi siab ceev, thiab thaum tsim, nws nyhav rau ntxiab thiab coagulate tshem tawm cov khoom, xws li av nplaum, silt, thiab cov organic teeb meem.Yog li ntawd, cov impurities me me no ua rau cov khoom loj dua thiab hnyav dua, ua rau lawv yooj yim dua los daws cov dej.
Cov sulfuric acid tsim nyob rau hauv cov tshuaj tiv thaiv tseem nyob rau hauv kev daws thiab pab txhawb rau tag nrho cov acidity ntawm lub system.Cov acidity tuaj yeem hloov kho raws li qhov xav tau, nyob ntawm qhov kev xav tau tshwj xeeb ntawm cov txheej txheem kho dej.Kev tswj cov pH yog qhov tseem ceeb rau kev ua kom zoo ntawm cov txheej txheem coagulation thiab flocculation.Nws kuj txo cov alkalinity ntawm cov dej.Yog tias cov alkalinity ntawm cov dej hauv pas dej nws tus kheej tsawg, ces NaHCO3 yuav tsum tau muab ntxiv los ua kom cov alkalinity ntawm cov dej.
Cov tshuaj tiv thaiv ntawm aluminium sulfate thiab dej feem ntau yog ua haujlwm hauv cov txheej txheem coagulation thiab flocculation ntawm cov nroj tsuag kho dej.Coagulation cuam tshuam nrog kev tsis txaus ntseeg ntawm cov khoom raug tshem tawm, thaum flocculation txhawb kev sib sau ntawm cov khoom no rau hauv loj dua, yooj yim flocs.Ob qho txheej txheem tseem ceeb heev rau kev tshem tawm cov impurities thiab kev qhia meej ntawm cov dej.
Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias kev siv aluminium sulfate hauv kev kho dej tau ua rau muaj kev txhawj xeeb ntawm ib puag ncig vim tias muaj peev xwm ua rau cov txhuas hauv cov dej ecosystems.Txhawm rau txo cov kev txhawj xeeb no, kev noj tshuaj thiab kev saib xyuas yog qhov tseem ceeb los xyuas kom meej tias aluminium concentrations hauv dej kho tau raws li cov qauv kev cai.
Hauv kev xaus, thaum txhuas sulfate reacts nrog dej, nws undergoes hydrolysis, ua txhuas hydroxide thiab sulfuric acid.Cov tshuaj tiv thaiv tshuaj no yog ib qho tseem ceeb rau cov txheej txheem kho dej, qhov twg aluminium hydroxide ua raws li cov coagulant tshem tawm cov impurities ntawm dej.Kev tswj xyuas kom raug thiab kev saib xyuas yog tsim nyog los xyuas kom meej cov dej huv kom zoo thaum txo kev cuam tshuam ib puag ncig.
Post lub sij hawm: Mar-05-2024