Vim li cas Polyaluminium Chloride thiaj li tshem tau Fluoride?

Fluoride yog ib yam khoom muaj tshuaj lom. Feem ntau pom muaj nyob rau hauv dej haus. Tus qauv dej haus thoob ntiaj teb rau fluoride uas tau teeb tsa los ntawm Lub Koom Haum Kev Noj Qab Haus Huv Ntiaj Teb (WHO) yog 1.5 ppm. Cov tshuaj fluoride ntau tuaj yeem ua rau cov hniav thiab pob txha fluorosis, yog li ntawd yuav tsum tau tshem tawm cov tshuaj fluoride ntau dhau ntawm cov dej haus. Ntawm ntau yamtshuaj kho dejmuaj, polyaluminium chloride (PAC) yog thawj qhov kev xaiv rau kev tshem tawm fluoride. PAC lub peev xwm tshem tawm fluoride yog los ntawm nws cov khoom siv tshuaj lom neeg tshwj xeeb thiab cov txheej txheem ua haujlwm. Cia peb tshawb nrhiav nws cov txheej txheem, cov txiaj ntsig thiab cov ntawv thov.

Mechanism ntawm kev ua haujlwm ntawm polyaluminium chloride:

Polyaluminium chlorideyog ib qho inorganic coagulant tsim los ntawm cov tshuaj tiv thaiv ntawm aluminium hydroxide thiab hydrochloric acid. Nws feem ntau yog siv ua flocculant hauv cov txheej txheem kho dej hauv nroog thiab kev lag luam.

Polyaluminium chloride electrostatically adsorb thiab sib xyaw nrog fluoride ions los tsim ntau yam kev sib xyaw ua ke. Qhov no tom qab ntawd tsim thiab ua rau cov txhuas fluoride uas tsis yaj.

Cov ions txhuas thiab cov ions fluoride kuj tseem tuaj yeem tsim ntau yam kev sib xyaw ruaj khov (xws li, txo qhov kev sib xyaw ntawm cov fluoride dawb hauv dej).

Cov txiaj ntsig ntawm PAC ua tus defluoridant

Kev ua haujlwm zoo: PAC tuaj yeem ua tiav cov nqi tshem tawm fluoride ntau, feem ntau tshaj 90% nyob rau hauv qhov xwm txheej zoo tshaj plaws. Piv nrog cov ntsev txhuas ib txwm muaj, PAC muaj qhov ceev ceev dua thiab qhov nrawm ntawm kev sib sau ua ke sai dua. Qhov ua tau zoo ntawm kev tshem tawm fluoride nce ntxiv 30% ntawm tib koob tshuaj.

Kev Lag Luam: Tus nqi kho mob raug txo qis ntau dua 40% piv rau cov thev naus laus zis xws li rov qab osmosis, thiab tsis tas yuav muaj cov khoom siv nyuaj.

Thiab qhov pH daim ntawv thov dav heev (5.0-9.0). Thiab qhov turbidity ntawm dej tuaj yeem txo tau tib lub sijhawm.

Kev tsim cov sludge tsawg: Cov sludge tsawg dua yog tsim, uas yooj yim dua rau kev tswj hwm.

Cov lus qhia txog PAC ua tus defluoridant:

PAC ua tau zoo tshaj plaws ntawm cov pH uas muaj kua qaub me ntsis mus rau qhov nruab nrab (kwv yees li 6.5 txog 7.5). Kev tswj cov pH kom zoo yuav ua rau muaj kev tshem tawm cov fluoride ntau tshaj plaws.

Qhov kev tshem tawm ntawm fluoride nyob ntawm qhov pib ntawm fluoride concentration thiab qhov ntau npaum li cas ntawm cov coagulant.

Kev Siv PAC Hauv Kev Tshem Tawm Fluoride

Kev kho dej hauv nroog: Xyuas kom meej tias cov dej haus muaj kev nyab xeeb los ntawm kev txo cov tshuaj fluoride kom txog rau qib uas txaus siab.

Kev kho cov dej khib nyiab hauv kev lag luam: Tshem tawm cov tshuaj fluoride ntawm cov dej khib nyiab uas tsim los ntawm cov lag luam xws li kev tsim iav, kev tsim cov khoom siv semiconductor thiab cov chaw tsim chiv.

Kev kho dua tshiab ntawm cov av hauv av thiab cov av uas muaj cov tshuaj fluoride ntuj tsim los tiv thaiv cov ib puag ncig ntawm cov av.

Kev kho dua tshiab ntawm kev ua liaj ua teb thiab ib puag ncig: Tshem tawm cov fluoride ions ntawm cov dej siv dej kom tsis txhob muaj av ntsev thiab ua rau cov qoob loo puas tsuaj.

Polyaluminum chloride yog ib qho kev daws teeb meem uas tau ua pov thawj thiab zoo rau kev tshem tawm fluoride hauv kev siv dej kho. Nws lub peev xwm los ua kom cov fluoride ions sib sau ua ke thiab nqus tau ua rau nws yog thawj qhov kev xaiv hauv nroog thiab chaw ua haujlwm. Nws yog ib qho tseem ceeb heev uas yuav tsum xaiv tus neeg muab tshuaj txhim khu kev qha ntawm ntau yamTus neeg muab khoom PACs. Koj yuav tsum xyuas kom meej tias lawv tsim nyog thiab zoo li cas. Yog tias koj xav tau kev pab txog kev yuav PAC, thov qhia rau kuv paub. Peb tuaj yeem muab cov qauv dawb thiab cov kev pabcuam xaiv. Tos ntsoov yuav ntsib koj!