Polyaluminium Chloride yog dab tsi?
Polyaluminium chloride, luv ua PAC, yog ib yam khoom siv kho dej inorganic polymer. Cov hom no muab faib ua ob pawg: kev siv dej haus hauv tsev thiab kev siv dej tsis yog hauv tsev, txhua hom raws li cov qauv sib txawv. Qhov tsos yog muab faib ua ob hom: kua thiab khoom khov. Vim muaj cov khoom sib txawv hauv cov khoom siv raw, muaj qhov sib txawv ntawm cov xim tsos thiab cov teebmeem ntawm kev siv.
Polyaluminium chloride yog ib yam khoom tsis muaj xim lossis daj. Nws cov kua yog ib yam kua tsis muaj xim lossis daj xim av pob tshab, yooj yim yaj hauv dej thiab cawv dilute, tsis yaj hauv cawv anhydrous thiab glycerol. Nws yuav tsum khaws cia rau hauv qhov chaw txias, cua nkag, qhuav, thiab huv si. Thaum thauj mus los, nws yog ib qho tsim nyog los tiv thaiv nag thiab tshav ntuj ncaj qha, tiv thaiv kom tsis txhob lwj, thiab tuav nrog kev ceev faj thaum thauj khoom thiab tshem tawm kom tiv thaiv kev puas tsuaj rau cov ntim khoom. Lub sijhawm khaws cia rau cov khoom ua kua yog rau lub hlis, thiab rau cov khoom khov nws yog ib xyoos.
Cov neeg sawv cev kho dej feem ntau yog siv rau kev ntxuav dej haus, cov dej khib nyiab hauv kev lag luam, thiab cov dej khib nyiab hauv nroog, xws li tshem tawm hlau, fluorine, cadmium, cov pa phem radioactive, thiab roj ntab. Nws kuj tseem siv rau kev kho cov dej khib nyiab hauv kev lag luam, xws li kev luam ntawv thiab zas xim dej khib nyiab. Nws kuj tseem siv rau hauv kev ua kom raug, tshuaj, kev ua ntawv, roj hmab, kev ua tawv, roj av, kev lag luam tshuaj lom neeg, thiab cov xim zas. Polyaluminium chloride yog siv los ua tus neeg sawv cev kho dej thiab cov khoom siv raw khoom zoo nkauj hauv kev kho qhov chaw.
Polyaluminium chloride muaj adsorption, coagulation, nag thiab lwm yam khoom. Nws kuj tsis ruaj khov, lom, thiab corrosiveness. Yog tias tsis txhob txwm txau rau ntawm daim tawv nqaij, yaug tam sim ntawd nrog dej. Cov neeg ua haujlwm tsim khoom yuav tsum hnav khaub ncaws ua haujlwm, lub ntsej muag, hnab looj tes, thiab khau roj hmab ntev. Cov khoom siv tsim khoom yuav tsum tau kaw, thiab qhov cua hauv chaw ua haujlwm yuav tsum zoo. Polyaluminium chloride decomposes thaum cua sov tshaj 110 ℃, tso cov pa hydrogen chloride, thiab thaum kawg decomposes rau hauv txhuas oxide; Reacts nrog acid kom dhau los ntawm depolymerization, ua rau txo qis hauv polymerization degree thiab alkalinity, thaum kawg hloov mus ua txhuas ntsev. Kev sib cuam tshuam nrog alkali tuaj yeem ua rau nce qib ntawm polymerization thiab alkalinity, thaum kawg ua rau muaj aluminium hydroxide precipitate lossis aluminate ntsev; Thaum sib xyaw nrog txhuas sulfate lossis lwm yam ntau yam kua qaub ntsev, nag yooj yim tsim, uas tuaj yeem txo lossis poob tag nrho cov kev ua haujlwm coagulation.
Lub sijhawm tshaj tawm: Lub Xya Hli-12-2024