Pali mitundu yambiri ya ma flocculant, yomwe ingagawidwe m'magulu awiri, imodzi ndi ma flocculant osapangidwa ndi organic ndipo inayo ndi ma flocculant osapangidwa ndi organic.
(1) Zinthu zosapangidwa ndi organic flocculants: kuphatikizapo mitundu iwiri ya mchere wachitsulo, mchere wachitsulo ndi mchere wa aluminiyamu, komanso zinthu zosapangidwa ndi polymer flocculants mongapolyaluminum chlorideZomwe zimagwiritsidwa ntchito kwambiri ndi izi: ferric chloride, ferrous sulfate, ferric sulfate, aluminium sulfate (alum), basic aluminium chloride, ndi zina zotero.
(2) Zosakaniza zachilengedwe: makamaka zinthu zopangidwa ndi polymer monga polyacrylamide. Popeza zosakaniza za polymer zili ndi ubwino wa: mlingo wochepa, kuchuluka kwa dothi mwachangu, mphamvu yayikulu ya floc, komanso kuthekera kowonjezera liwiro losefera, mphamvu yake yosakanikirana ndi yayikulu kangapo kapena kangapo kuposa ya zosakaniza zachilengedwe zopanda organic, kotero pakadali pano imagwiritsidwa ntchito kwambiri m'mapulojekiti ochizira madzi.
(Wopanga mankhwala oyeretsera madzi akatswiri - Dziko Loyera la Madzi Oyera)
Polymer flocculant--polyacrylamide
Zipangizo zazikulu zopangirapolyacrylamide (mwachidule PAM)ndi acrylonitrile. Imasakanizidwa ndi madzi muyeso winawake ndipo imapezeka kudzera mu hydration, cleansing, polymerization, drying ndi njira zina.
Zotsatira zotsatirazi zitha kupezedwa kuchokera ku zoyeserera zam'mbuyomu:
(1) Anionic PAM ndi yoyenera zinthu zosungunuka zopanda chilengedwe zokhala ndi kuchuluka kwakukulu komanso mphamvu yabwino, komanso tinthu tating'onoting'ono tomwe timasungunuka (0.01 ~ 1mm), komanso pH ya neutral kapena alkaline.
(2) Cationic PAM ndi yoyenera zinthu zopachikidwa zokhala ndi mphamvu yoipa komanso zokhala ndi zinthu zachilengedwe.
(3) Nonionic PAM ndi yoyenera kulekanitsa zinthu zopachikidwa mu organic ndi inorganic, ndipo yankho lake ndi acid kapena losalowerera ndale.
Kukonzekera kwa Flocculant
Flocculant ikhoza kukhala gawo lolimba kapena gawo lamadzimadzi lokhala ndi kuchuluka kwakukulu. Ngati flocculant iyi yawonjezeredwa mwachindunji ku suspension, chifukwa cha kuchuluka kwake kwakukulu komanso kufalikira kochepa, flocculant singathe kufalikira bwino mu suspension, zomwe zimapangitsa kuti gawo la flocculant lisathe kusewera gawo la flocculant, zomwe zimapangitsa kuti flocculant itayike. Chifukwa chake, chosakaniza chosungunula chimafunika kuti chisakanize flocculant ndi madzi okwanira kuti chifike pa kuchuluka kwina, nthawi zambiri osapitirira 4~5g/L, ndipo nthawi zina ochepera pa mtengo uwu. Mukasakaniza mofanana, ingagwiritsidwe ntchito. Nthawi yosakaniza ndi pafupifupi 1~2h.
Pambuyo poti polymer flocculant yakonzedwa, nthawi yake yogwira ntchito ndi masiku 2 mpaka 3. Pamene yankho likhala loyera ngati mkaka, zikutanthauza kuti yankholo lawonongeka ndipo latha ntchito, ndipo liyenera kuyimitsidwa nthawi yomweyo.
Gulu la amide la polyacrylamide lopangidwa ndi Yixing Cleanwater Chemicals Co., Ltd. limatha kugwirizana ndi zinthu zambiri, limakoka ndikupanga ma hydrogen bond. Polyacrylamide yolemera kwambiri ya mamolekyulu imapanga maulalo pakati pa ma ayoni okokedwa, imapanga ma flocs, ndikufulumizitsa kusungunuka kwa tinthu, motero kukwaniritsa cholinga chachikulu cha kulekanitsa kwa solid-liquid. Pali mitundu ya anionic, cationic ndi non-ionic. Nthawi yomweyo, makasitomala amathanso kusintha zinthu zamitundu yosiyanasiyana.
Chodzikanira: Timakhala ndi maganizo osalowerera ndale pa malingaliro omwe ali m'nkhaniyi. Nkhaniyi ndi yongogwiritsa ntchito polankhulana, osati yogulitsa, ndipo ufulu wokopera ndi wa wolemba woyamba. Zikomo chifukwa cha chidwi chanu ndi chithandizo chanu!
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Nthawi yotumizira: Okutobala-17-2024