Kukho iintlobo ezininzi zee-flocculants, ezinokwahlulwahlulwa zibe ziindidi ezimbini, enye yi-inorganic flocculants kwaye enye yi-organic flocculants.
(1) Ii-flocculants ezingaphiliyo: kuquka iintlobo ezimbini zeetyuwa zesinyithi, iityuwa zesinyithi kunye neetyuwa ze-aluminium, kunye nee-flocculants ze-polymer ezingaphiliyo ezifanai-polyaluminum chlorideEzisetyenziswa kakhulu zezi: i-ferric chloride, i-ferrous sulfate, i-ferric sulfate, i-aluminium sulfate (alum), i-basic aluminium chloride, njl.njl.
(2) Iiflocculants zendalo: ikakhulu izinto zepolymer ezifana nepolyacrylamide. Ngenxa yokuba iiflocculants zepolymer zinezibonelelo zezi: idosi encinci, isantya sokutyibilika ngokukhawuleza, amandla aphezulu efloc, kunye nokukwazi ukwandisa isantya sokucoca, isiphumo sayo seflocculation sikhulu ngokuphindwe kaninzi kuneeflocculants zemveli ezingaphiliyo, ngoko ke ngoku isetyenziswa kakhulu kwiiprojekthi zonyango lwamanzi.
(Umenzi wearhente yonyango lwamanzi ochwephesha-ihlabathi elicocekileyo lamanzi)
I-flocculant ye-polymer--i-polyacrylamide
Izinto eziphambili zokwenziwai-polyacrylamide (i-PAM ngamafutshane)yi-acrylonitrile. Ixutywa namanzi ngokwemilinganiselo ethile kwaye ifunyenwe ngokufuthwa kwamanzi, ukucocwa, ukupholishwa, ukomiswa kunye nezinye iinkqubo.
Ezi zigqibo zilandelayo zinokuthathwa kwiimvavanyo zangaphambili:
(1) I-Anionic PAM ifanelekile kwizinto ezixutyiweyo ezingaphiliyo ezinoxinzelelo oluphezulu kunye netshaja entle, kunye namasuntswana axutyiweyo aqinileyo (0.01~1mm), kunye nexabiso le-pH elingathathi cala okanye le-alkaline.
(2) I-Cationic PAM ifanelekile kwizinto ezixhonyiweyo ezine-negative charge kwaye ziqulethe izinto eziphilayo.
(3) I-Nonionic PAM ifanelekile ukwahlula izinto ezixhonyiweyo kwimeko exutyiweyo yezinto eziphilayo nezingaphiliyo, kwaye isisombululo sine-asidi okanye asithathi cala
Ukulungiswa kweFlocculant
I-flocculant inokuba yi-solid phase okanye i-high concentration liquid phase. Ukuba le flocculant yongezwa ngokuthe ngqo kwi-suspension, ngenxa yoxinano lwayo oluphezulu kunye nesantya esiphantsi sokusasazwa, i-flocculant ayinakusasazwa kakuhle kwi-suspension, nto leyo ebangela ukuba inxalenye ye-flocculant ingakwazi ukudlala indima ye-flocculation, nto leyo ebangela ukuba i-flocculant ichitheke. Ke ngoko, kufuneka umxube onyibilikisayo ukuze uxube i-flocculant kunye nomlinganiselo ofanelekileyo wamanzi ukuze kufikelelwe kuxinano oluthile, ngokubanzi kungabi ngaphezu kwe-4~5g/L, kwaye ngamanye amaxesha ngaphantsi kweli xabiso. Emva kokuxuba ngokulinganayo, ingasetyenziswa. Ixesha lokuxuba limalunga ne-1~2h.
Emva kokuba i-polymer flocculant ilungisiwe, ixesha layo lokusebenza liyi-2 ~ 3d. Xa isisombululo siba mhlophe njengobisi, oko kuthetha ukuba isisombululo siwohlokile kwaye siphelelwe lixesha, kwaye kufuneka simiswe ngoko nangoko.
Iqela le-amide le-polyacrylamide eliveliswa yi-Yixing Cleanwater Chemicals Co., Ltd. linokuba nobuhlobo nezinto ezininzi, lifunxe kwaye lenze iibhondi ze-hydrogen. I-polyacrylamide enobunzima obuphezulu beemolekyuli yenza iibhulorho phakathi kwee-ion ezifunxekileyo, ivelise ii-flocs, kwaye ikhawulezise ukutyibilika kwee-particles, ngaloo ndlela ifezekisa injongo yokugqibela yokwahlulwa kwe-solid-liquid. Kukho iintlobo ze-anionic, i-cationic kunye ne-non-ionic. Kwangaxeshanye, abathengi banokwenza ngokwezifiso iimveliso zeenkcukacha ezahlukeneyo.
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Ixesha leposi: Oktobha-17-2024