Kev Siv Tshuaj Kho Mob Luam Ntawv Thiab Dyeing Pov Tseg

Coagulation txoj kev

Muaj feem ntau txheej txheem kev sib xyaw ua ke thiab txoj kev sib xyaw ua ke ntawm huab cua, cov kev sib xyaw ua ke siv feem ntau txhuas ntsev lossis hlau ntsev, ntawm cov uas yooj yim aluminium chloride (PAC) muaj kev sib xyaw zoo dua adsorption kev ua tau zoo, thiab ferrous sulfate tus nqi yog qis tshaj.

Kev siv cov khoom sib xyaw polymer txawv teb chaws ntau dua, thiab muaj lub peev xwm los hloov cov khoom sib xyaw inorganic, tab sis vim yog tus nqi hauv Suav teb, kev siv cov tshuaj ntxuav polymer tseem muaj tsawg.

Nws tau tshaj tawm tias qhov tsis muaj zog anion polymer tus neeg sawv cev yog qhov siv dav tshaj plaws, yog siv nrog kev sib xyaw nrog aluminium sulfate, nws tuaj yeem ua si tau zoo dua.

Lub ntsiab tseem ceeb ntawm cov tsis txaus ntseeg txoj kev yooj yim cov txheej txheem ntws, kev lag luam yooj yim thiab kev tswj hwm, cov cuab yeej qis khoom siv, qis qis hauv pem teb thiab siab decolorization efficiency rau hydrophobic dyes.

Qhov kev tsis zoo yog kev ua haujlwm siab, tus nqi ntau ntawm sludge thiab cov dej tsis txaus, cov nyhuv tsis zoo ntawm kev kho xim hydrophilic.

oxidation

Ozone oxidation tau siv dav dav hauv txawv teb chaws. Zima SV li al. piav qhia tus lej ntawm kev ua lej ntawm ozone decolorization ntawm luam ntawv thiab dyeing dej khib nyiab.

Cov txiaj ntsig tau pom tias qhov txiav txim siab lub cev ntawm cov xim daj ua kom pom tseeb ntawm cov dej khib nyiab kom txog li 80% thaum kev siv tshuaj rau ozone yog 0.886gO3 / g.

Txoj kev tshawb no tseem pom tias yuav tsum tau ua kom muaj ntau cov dej ozone rau kev ua haujlwm txuas mus ntxiv yog siab dua qhov yuav tsum tau ua rau lub sijhawm ua haujlwm tsis tu ncua, thiab kev teeb tsa cov baffles hauv cov reactor tuaj yeem txo qhov dej ozone ntawm 16.7%.

Yog li, kev siv cov pa oziv oxidation decolorization, yuav tsum tsim raws li kev cuam tshuam ntawm kev ua haujlwm ntawm lub reactor, thiab tuaj yeem raug txiav txim siab hauv kev teeb tsa baffles.

Ozone oxidation muaj cov txiaj ntsig zoo decolorization rau feem ntau dyes, tab sis muaj cov nyhuv tsis zoo ntawm cov dej tsis ua haujlwm xws li vulcanization, txo thiab txheej.

Los ntawm cov kev lag luam hauv tsev thiab txawv teb chaws thiab cov txiaj ntsig, qhov kev txiav txim siab ntawm tus qauv no tau zoo, tab sis nws siv ntau lub zog, yog li nws tsis yooj yim rau nrov thiab siv nws rau ntawm qhov loj.

Photooxidation kev kho mob ntawm dyeing wastewater decolorization efficiency yog qhov siab dua, tab sis cov cuab yeej siv peev thiab lub zog siv tseem yuav tsum tau txo qis ntxiv.

Kev txheem hluav taws xob

Electrolysis muaj cov kev kho mob zoo rau kev zas xim cov dej khib nyiab uas muaj cov kua roj ua kua qaub, qhov kho tau qhov dej yog 50% ~ 70%, tab sis nws muaj cov kev kho tsis zoo rau cov dej khib nyiab nrog cov xim tsaus thiab siab CODcr.

Cov kev tshawb fawb txog cov khoom siv electrochemical ntawm dyes tsom tau pom tias qhov kev txiav txim ntawm CODcr tshem tawm tus nqi ntawm ntau yam nyob rau hauv kev kho hluav taws xob muaj raws li hauv qab no: sulfide dyes, VAT dyes& GT;

Acid dyestuff, tshuaj tiv thaiv plav tsis haum& GT;

Nruab nrab tsis muaj lub plhaw, ncaj ncaj dyestuff& GT;

Cationic dyes, hom no tau nrov.