Kukho iintlobo ezininzi zeeflocculants, ezinokuthi zohlulwe zibe ngamacandelo amabini, enye i-inorganic flocculants kwaye enye i-organic flocculants.
1polyaluminium chloride. Ngokuqhelekileyo zisetyenziswa: i-chloride ye-ferric, i-ferrous sulfate, i-sulfate ye-ferric, i-aluminium sulfate (i-alum), i-aluminium chloride esisiseko, njl.
(2) flocculants Organic: ikakhulu polymer izinto ezifana polyacrylamide. Ngenxa yokuba ii-polymer flocculants zinezibonelelo zoku: idosi encinci, isantya sentlenga ekhawulezayo, ukomelela okuphezulu kwefloc, kunye nokukwazi ukonyusa isantya sokuhluza, isiphumo sayo sokuntywila siphindaphindwe kaninzi kunelo leeflocculants zemveli, ngoko isetyenziswa kakhulu ngoku. kwiiprojekthi zokucoca amanzi.
(Umvelisi wearhente yonyango lwamanzi-Amanzi acocekileyo kwihlabathi)
I-polymer flocculant--polyacrylamide
Eyona mathiriyeli ekrwada yei-polyacrylamide (PAM ngokufutshane)i-acrylonitrile. Ixutywe namanzi ngomlinganiselo othile kwaye ifunyenwe nge-hydration, ukuhlanjululwa, i-polymerization, ukomisa kunye nezinye iinkqubo.
Ezi zigqibo zilandelayo zinokuthathwa kwimifuniselo yangaphambili:
(1) I-Anionic PAM ifanelekile kwi-inorganic suspended matter ene-concentration ephezulu kunye nentlawulo efanelekileyo, kunye ne-coarse suspended particles (0.01 ~ 1mm), kunye nexabiso elingathathi hlangothi okanye le-alkaline pH.
(2) I-Cationic PAM ifanelekile kumbandela omisiweyo kunye nentlawulo embi kwaye iqulethe izinto eziphilayo.
(3) I-PAM ye-Nonionic ifanelekile ukwahlula umbandela omisiweyo kwindawo edibeneyo yezinto eziphilayo kunye ne-inorganic, kwaye isisombululo si-acidic okanye singathathi hlangothi.
Ukulungiselela iFlocculant
I-flocculant ingaba yinqanaba eliqinileyo okanye inqanaba eliphezulu loxinzelelo lolwelo. Ukuba le flocculant yongezwa ngokuthe ngqo kwi-suspension, ngenxa yobuninzi bayo kunye nesantya esisezantsi sokusasazwa, i-flocculant ayinakuhlakazwa kakuhle ekumisweni, okubangela ukuba inxalenye ye-flocculant ingakwazi ukudlala indima ye-flocculation, okubangela inkunkuma ye-flocculant. . Ngoko ke, umxube onyibilikayo uyadingeka ukuvuselela i-flocculant kunye nomlinganiselo ofanelekileyo wamanzi ukufikelela kwinqanaba elithile, ngokuqhelekileyo lingabi ngaphezu kwe-4 ~ 5g / L, kwaye ngamanye amaxesha ngaphantsi kweli xabiso. Emva kokuvuselela ngokulinganayo, ingasetyenziswa. Ixesha lokuvuselela limalunga ne-1 ~ 2h.
Emva kokuba i-polymer flocculant ilungisiwe, ixesha layo lokuqinisekisa liyi-2 ~ 3d. Xa isisombululo siba mhlophe qhwa, oko kuthetha ukuba isisombululo siphelile kwaye siphelelwe yisikhathi, kwaye kufuneka simiswe ngokukhawuleza.
Iqela le-amide le-polyacrylamide eveliswe yi-Yixing Cleanwater Chemicals Co., Ltd. inokunxulumana nezinto ezininzi, i-adsorb kwaye yenze iibhondi ze-hydrogen. Ngokuthelekisa ubunzima bemolekyuli ephezulu i-polyacrylamide yenza iibhulorho phakathi kwee-ion ze-adsorbed, ivelisa i-flocs, kwaye ikhawulezisa intlenga yamasuntswana, ngaloo ndlela ifezekisa eyona njongo yokwahlulwa kolwelo oluqinileyo. Kukho iintlobo ze-anionic, i-cationic kunye ne-non-ionic. Kwangaxeshanye, abathengi banokwenza ngokwezifiso iimveliso zeempawu ezahlukeneyo
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