Dicyandiamide formaldehyde resin decoloring agent

Pakati pa madzi otayira omwe amakonzedwa m'mafakitale, kusindikiza ndi kuyika utoto m'madzi otayira ndi amodzi mwa madzi otayira ovuta kwambiri kuwakonza. Ali ndi kapangidwe kosiyanasiyana, chroma yambiri, kuchuluka kwake kwakukulu, ndipo ndi kovuta kuwawononga. Ndi amodzi mwa madzi otayira m'mafakitale ovuta kwambiri komanso ovuta kuwakonza omwe amadetsa chilengedwe. Kuchotsa chroma n'kovuta kwambiri pakati pa mavuto.

Pakati pa njira zambiri zosindikizira ndi kupaka utoto m'madzi otayira, kugwiritsa ntchito kuuma ndiyo njira yomwe imagwiritsidwa ntchito kwambiri m'mabizinesi. Pakadali pano, zinthu zogwiritsidwa ntchito posindikiza ndi kupaka utoto m'mabizinesi osindikizira ndi kupaka utoto m'dziko langa ndi zinthu zopangidwa ndi aluminiyamu komanso zitsulo. Mphamvu yochotsa utoto ndi yofooka, ndipo ngati utoto wochita kusintha mtundu uchotsedwa, palibe mphamvu yochotsera mtundu, ndipo padzakhalabe ma ayoni achitsulo m'madzi okonzedwa, omwe akadali owopsa kwambiri kwa thupi la munthu ndi chilengedwe chozungulira.

Dicyandiamide formaldehyde resin decoloring agent ndi organic polymer flocculant, quaternary ammonium salt type. Poyerekeza ndi ma flocculants achikhalidwe omwe amachotsa utoto, ali ndi liwiro la flocculant mwachangu, mlingo wochepa, ndipo amakhudzidwa ndi mchere womwe umakhalapo nthawi imodzi, PH ndi Ubwino monga kuchepa kwa mphamvu ya kutentha.

Dicyandiamide formaldehyde resin decoloring agent ndi flocculant yomwe imagwiritsidwa ntchito kwambiri pochotsa utoto ndi kuchotsa COD. Mukamagwiritsa ntchito, ndikulimbikitsidwa kusintha pH ya madzi otayidwa kukhala osalowerera. Chonde lankhulani ndi akatswiri kuti mudziwe njira zina zogwiritsira ntchito. Malinga ndi mgwirizano wa anthu ambiri, ndemanga kuchokera kwa opanga makina osindikizira ndi utoto ndi yakuti dicyandiamide formaldehyde resin decolorizer imakhudza kwambiri kusintha mtundu wa madzi otayidwa osindikizira ndi utoto. Chiŵerengero cha kuchotsa chroma chikhoza kufika pa 96%, ndipo chiŵerengero cha kuchotsa COD chafika pa 70%.

Ma organic polymer flocculants anayamba kugwiritsidwa ntchito m'zaka za m'ma 1950, makamaka ma polyacrylamide water treatment flocculants, ndipo polyacrylamide ikhoza kugawidwa m'magulu awiri: non-ionic, anionic, ndi cationic. M'nkhaniyi, timvetsetsa acrylamide polymer dicyandiamide formaldehyde resin decolorizing flocculant yomwe imathiridwa mchere ndi quaternary amine pakati pa ma cationic organic polymer flocculants.

Dicyandiamide formaldehyde resin decolorizing flocculant poyamba imayatsidwa ndi acrylamide ndi formaldehyde aqueous solution pansi pa alkaline, kenako imayatsidwa ndi dimethylamine, kenako imaziziritsidwa ndikuyatsidwa ndi hydrochloric acid. Chogulitsacho chimayikidwa mu evaporation ndikusefedwa kuti chipeze quaternized acrylamide monomer.

Dicyandiamide-formaldehyde condensation polymer decolorizing flocculant inayambitsidwa m'zaka za m'ma 1990. Ili ndi mphamvu yapadera kwambiri yochotsa utoto wa madzi otayidwa. Pochiza madzi otayidwa okhala ndi utoto wambiri komanso wokhuthala kwambiri, polyacrylamide kapena polyacrylamide yokha ndi yomwe imagwiritsidwa ntchito. Polyaluminum chloride flocculant singachotse utoto wonse, ndipo ikawonjezera flocculant decolorizing, imachotsa mphamvu yoyipa yomwe imalumikizidwa ndi mamolekyu a utoto m'madzi otayidwa mwa kupereka ma cation ambiri motero imasokoneza. Pomaliza, ma floccules ambiri amapangidwa, omwe amatha kuyamwa mamolekyu a utoto pambuyo pa flocculation ndi destabilized, kuti akwaniritse cholinga cha destabilized.

Momwe mungagwiritsire ntchito decolorizer:

Njira yogwiritsira ntchito flocculant yochotsa utoto ndi yofanana ndi ya polyacrylamide. Ngakhale yoyambayo ili mu mawonekedwe amadzimadzi, imafunika kuchepetsedwa ndi 10%-50%, kenako iwonjezeredwa ku madzi otayira ndikusakanikirana kwathunthu. Pangani maluwa a alum. Zinthu zofiirira zomwe zili m'madzi otayira amitundu zimaphwanyidwa ndikuchotsedwa m'madzi, ndipo zimakhala ndi sedimentation kapena air flotation kuti zitheke kupatukana.

Mu mafakitale osindikiza ndi kupaka utoto, nsalu ndi zina, madzi amagwiritsidwa ntchito kwambiri ndipo kuchuluka kwa madzi ogwiritsidwanso ntchito kumakhala kochepa. Chifukwa chake, kuwononga madzi kumakhala kofala kwambiri. Ngati njira iyi ikugwiritsidwa ntchito pokonza ndi kubwezeretsanso madzi otayidwa a mafakitale okhala ndi mitundu yambiri komanso okhuthala kwambiri, sikuti ingangopulumutsa madzi ambiri atsopano a mafakitale, komanso ingachepetse mwachindunji kutuluka kwa madzi otayidwa a mafakitale, zomwe ndizofunikira kwambiri pakulimbikitsa chitukuko chokhazikika cha mafakitale osindikiza, kupaka utoto ndi nsalu.

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