Njira yolumikizira madzi otayira pepala imafuna kuwonjezerapo cholumikizira china, chomwe nthawi zambiri chimatchedwanso chosinthira mtundu wa madzi otayira pepala. Chifukwa cholumikizira madzi otayira pepala chimatha kuchotsa zinthu zolimba zomwe zapachikidwa m'madzi otayira, kusakaniza kwa mankhwala kumatha kusintha mtundu.
Chifukwa chake, zinthu zambiri zosafunika, ma colloid ndi zoipitsa m'madzi otayidwa zimatha kusungunuka ndikusakanikirana powonjezera mankhwala ophera mvula mu thanki yolumikizira madzi, kuti akwaniritse zotsatira za kuchotsedwa kwa utoto ndi kusokonekera, ndipo madzi otayidwawo adzakhala oyera. Ma flocculants omwe amagwiritsidwa ntchito kwambiri pochotsa utoto amaphatikizapo ma polymer flocculants ndi ma microbial flocculants, ndipo ma polymer flocculants amaphatikizapo ma organic polymers opangidwa, ma inorganic polymers, ndi ma organic polymers achilengedwe. N'zoonekeratu kuti flocculant yochotsa utotoPakupanga mapepala, madzi otayira ndi polima wopangidwa ndi mamolekyulu ambiri.
Madzi otayira nthawi zambiri amakonzedwa ndi: chophimba → kusintha kwa sedimentation kapena kuyandama kwa mpweya → A/O kapena kukhudzana ndi okosijeni → thanki yachiwiri ya sedimentation → kutulutsa. Flocculant yochotsa utoto imagwiritsidwa ntchito mu thanki ya sedimentation, ndipo ili ndi mawonekedwe osavuta kugwiritsa ntchito, kuchuluka kwa COD komwe kumachotsedwa, ndipo imatha kupewa kuipitsa kwina.
Pali mitundu yambiri ya madzi otayika mumakampani opanga mapepala. Ngakhale atakhala madzi otayika a malo opangira zinthu, ukadaulo wogwiritsira ntchito udzakhala wosiyana. Komabe, mfundo yomweyi ya madzi otayika awa ndi COD yambiri, chroma yambiri, kusintha mtundu ndi kuchepetsa COD, kotero amatha kuchiritsidwa ndi ma flocculants ochotsa utoto popanga madzi otayika, kenako nkugwirizana ndi njira zosiyanasiyana kuti makampani obwezeretsanso madzi agwiritse ntchito kapena kukwaniritsa miyezo yotulutsira. Chitani motsatira. Ngati mtundu wa madzi otayika ndi njira yochizira zili zosiyana, zimagwirizana ndi mlingo ndi kusankha kwa flocculant yochotsa utoto. Chifukwa chake, tikukulimbikitsani kuchita mayeso ang'onoang'ono musanagwiritse ntchito pamakina kuti mudziwe mtundu ndi mlingo (zambiri mwa zinthu zathu zili ndizitsanzo zaulere, kuti apereke deta yolondola komanso chitsimikizo chabwino chogwiritsa ntchito pamalopo.
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Nthawi yotumizira: Julayi-29-2022