Dicyandiamide formaldehyde resin decoloring agent

Pakati pa mankhwala opangira madzi otayira m'mafakitale, kusindikiza ndi kudaya madzi onyansa ndi imodzi mwazinthu zovuta kwambiri kuzichotsa. Ili ndi mawonekedwe ovuta, mtengo wapamwamba wa chroma, kukhazikika kwakukulu, ndipo ndizovuta kutsitsa. Ndi imodzi mwamadzi ovuta kwambiri komanso ovuta kuwatsuka m'mafakitale omwe amawononga chilengedwe. Kuchotsa chroma kumakhala kovuta kwambiri pakati pa zovuta.

Mwa njira zambiri zosindikizira ndi zopaka utoto wamadzi onyansa, kugwiritsa ntchito coagulation ndiyo njira yomwe imagwiritsidwa ntchito kwambiri m'mabizinesi. Pakalipano, ma flocculants ochiritsira omwe amagwiritsidwa ntchito m'makampani osindikizira nsalu ndi opaka utoto m'dziko langa ndi opangidwa ndi aluminiyamu komanso achitsulo. Zotsatira za decolorization ndizosauka, ndipo ngati utoto wokhazikika umakhala wodetsedwa, pafupifupi palibe zotsatira za decolorization, ndipo pamakhala ma ion achitsulo m'madzi oyeretsedwa, omwe amakhalabe ovulaza thupi la munthu komanso malo ozungulira.

Dicyandiamide formaldehyde resin decoloring agent ndi organic polima flocculant, quaternary ammonium mchere wamchere. Poyerekeza ndi miyambo wamba decolorizing flocculants, izo ali mofulumira flocculation liwiro, zochepa mlingo, ndipo amakhudzidwa ndi mchere, PH ndi Ubwino monga kuchepa mphamvu kutentha.

Dicandiamide formaldehyde resin decoloring agent ndi flocculant yomwe imagwiritsidwa ntchito kwambiri pochotsa mtundu komanso kuchotsa COD. Mukamagwiritsa ntchito, tikulimbikitsidwa kuti musinthe pH yamadzi otayira kuti asalowerere. Chonde lankhulani ndi akatswiri kuti mugwiritse ntchito njira zinazake. Malinga ndi mgwirizano wambiri Malingaliro ochokera kwa opanga makina osindikizira ndi opaka utoto ndikuti dicandiamide formaldehyde resin decolorizer imakhudza kwambiri kutulutsa kwamitundu yosindikiza ndi kudaya madzi oyipa. Mlingo wochotsa chroma ukhoza kufika kupitilira 96%, ndipo kuchuluka kwa COD kwafikanso kupitilira 70%.

Organic polima flocculants anayamba ntchito mu 1950s, makamaka polyacrylamide madzi mankhwala flocculants, ndi Polyacrylamide akhoza kugawidwa sanali ionic, anionic, ndi cationic. M'nkhaniyi, timvetsetsa acrylamide polima dicyandiamide formaldehyde resin decolorizing flocculant yomwe imathiridwa mchere ndi quaternary amine pakati pa cationic organic polymer flocculants.

The dicyandiamide formaldehyde resin decolorizing flocculant imayamba kuchitidwa ndi acrylamide ndi formaldehyde amadzimadzi amadzimadzi pansi pa mikhalidwe yamchere, kenaka imachita ndi dimethylamine, kenako itakhazikika ndikuyikidwa quaternized ndi hydrochloric acid. The mankhwala anaikira ndi evaporation ndi amasefedwa kupeza quaternized acrylamide monoma.

Dicandiamide-formaldehyde condensation polymer decolorizing flocculant idayambitsidwa mu 1990s. Ili ndi zotsatira zabwino kwambiri zapadera zochotsera utoto wamadzi otayira utoto. Pochiza madzi onyansa amtundu wamtundu wapamwamba komanso wochuluka kwambiri, polyacrylamide kapena polyacrylamide yokha imagwiritsidwa ntchito. Polyaluminium chloride flocculant sangathe kuchotsa kwathunthu pigment, ndipo atatha kuwonjezera decolorizing flocculant, izo neutralizes mlandu zoipa zomangika mamolekyu utoto mu madzi oipa popereka kuchuluka kwa cations motero destabilizes Pomaliza, ambiri floccules amapangidwa, amene. imatha kuyamwa mamolekyu a utoto pambuyo pa flocculation ndi destabilization, kuti akwaniritse cholinga cha decolorization.

Momwe mungagwiritsire ntchito decolorizer:

Njira yogwiritsira ntchito decolorizing flocculant ndi yofanana ndi ya polyacrylamide. Ngakhale kuti yoyambayo ndi yamadzimadzi, imayenera kuchepetsedwa isanayambe kugwiritsidwa ntchito. Wopanga amalimbikitsa kuti asungunuke ndi 10% -50%, ndiyeno amawonjezeredwa kumadzi otayira ndikugwedezeka kwathunthu. Pangani maluwa alum. Zinthu zamitundumitundu zomwe zili m'madzi otayidwa achikuda zimasunthidwa ndikutuluka m'madzi, ndipo zimakhala ndi sedimentation kapena kuyandama kwa mpweya kuti zitheke kulekana.

M'mafakitale osindikizira ndi opaka utoto, nsalu ndi zina, madzi amamwa kwambiri ndipo kuchuluka kwakugwiritsanso ntchito kumakhala kochepa. Choncho, kuwonongeka kwa madzi ndikofala kwambiri. Ngati ndondomekoyi ikugwiritsidwa ntchito pochita chithandizo chamakono ndi kubwezeretsanso madzi otayira amtundu wamtundu wapamwamba komanso wochuluka kwambiri, Sizingatheke kupulumutsa madzi ambiri a mafakitale atsopano, komanso kuchepetsa mwachindunji kutulutsa madzi otayira a mafakitale, omwe ndi zakufunika kwakukulu komanso kokulirapo pakulimbikitsa chitukuko chokhazikika cha mafakitale osindikizira, opaka utoto ndi nsalu.

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Dicyandiamide formaldehyde resin decoloring agent


Nthawi yotumiza: Nov-16-2021

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