Pali mitundu yambiri ya flocculants, yomwe imatha kugawidwa m'magulu awiri, imodzi ndi inorganic flocculants ndipo ina ndi organic flocculants.
(1) Inorganic flocculants: kuphatikizapo mitundu iwiri ya mchere zitsulo, chitsulo mchere ndi zotayidwa mchere, komanso inorganic polima flocculants mongapolyaluminiyamu kloridi. Zomwe zimagwiritsidwa ntchito ndi: ferric chloride, ferrous sulfate, ferric sulfate, aluminium sulphate (alum), zoyambira zotayidwa za aluminium chloride, etc.
(2) Organic flocculants: makamaka polima zinthu monga polyacrylamide. Chifukwa ma polima flocculants ali ndi ubwino: mlingo waung'ono, mofulumira sedimentation mlingo, high floc mphamvu, ndi luso kuonjezera kusefera liwiro, zotsatira zake flocculation ndi kangapo mpaka kambirimbiri kuposa za chikhalidwe flocculants chikhalidwe, kotero kuti panopa ambiri. m’ntchito zoyeretsera madzi.
(Katswiri wopanga madzi opangira madzi-Amadzi Oyera padziko lapansi)
Polymer flocculant - polyacrylamide
Waukulu zopangira zapolyacrylamide (PAM mwachidule)ndi acrylonitrile. Imasakanizidwa ndi madzi mu gawo lina ndipo imapezeka kudzera mu hydration, kuyeretsedwa, polymerization, kuyanika ndi njira zina.
Zotsatirazi zitha kutengedwa kuchokera pazoyeserera zam'mbuyomu:
(1) Anionic PAM ndiyoyenera kuzinthu zoyimitsidwa zokhala ndi ndende yayikulu komanso mtengo wabwino, komanso tinthu tating'onoting'ono tomwe timayimitsidwa (0.01 ~ 1mm), komanso ndale kapena zamchere pH mtengo.
(2) Cationic PAM ndi yoyenera pa nkhani yoyimitsidwa yokhala ndi mlandu wolakwika komanso wokhala ndi zinthu zachilengedwe.
(3) Nonionic PAM ndi yoyenera kulekanitsa nkhani yoyimitsidwa mumtundu wosakanikirana wa organic ndi organic, ndipo yankho lake ndi acidic kapena ndale.
Kukonzekera kwa Flocculant
The flocculant akhoza kukhala olimba gawo kapena mkulu ndende madzi gawo. Ngati flocculant iyi ikuwonjezedwa mwachindunji ku kuyimitsidwa, chifukwa cha kachulukidwe kake komanso kutsika kochepa, flocculant sangathe kumwazikana bwino mu kuyimitsidwa, zomwe zimapangitsa kuti mbali ina ya flocculant ikhale yosagwira ntchito, zomwe zimapangitsa kuti flocculant iwonongeke. . Chifukwa chake, chosakaniza chosungunuka chimafunika kusonkhezera flocculant ndi madzi okwanira kuti afikire ndende inayake, nthawi zambiri osapitirira 4 ~ 5g/L, ndipo nthawi zina ocheperapo. Pambuyo kusonkhezera mofanana, ikhoza kugwiritsidwa ntchito. Nthawi yoyambitsa ndi pafupifupi 1-2h.
Pambuyo pokonza polima flocculant, nthawi yake yovomerezeka ndi 2 ~ 3d. Pamene yankho limakhala loyera lamkaka, zikutanthauza kuti yankho lawonongeka ndi kutha, ndipo liyenera kuyimitsidwa nthawi yomweyo.
Gulu la amide la polyacrylamide lopangidwa ndi Yixing Cleanwater Chemicals Co., Ltd. Ndi mkulu maselo kulemera Polyacrylamide mitundu milatho pakati pa ayoni adsorbed, amapanga flocs, ndi Iyamba Kuthamanga ndi sedimentation wa particles, potero kukwaniritsa cholinga chachikulu cha olimba-zamadzimadzi kulekana. Pali mitundu ya anionic, cationic ndi non-ionic. Nthawi yomweyo, makasitomala amathanso kusintha zinthu zamitundu yosiyanasiyana
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