Izinto ezichaphazela ukusetyenziswa kwe-flocculant

 Ixabiso le-PH lamanzi

Ixabiso le-pH lamanzi linempembelelo enkulu ekusetyenzisweni kwe-flocculant engaphiliyo, kwaye ixabiso lexabiso le-pH linxulumene nodidi lwe-flocculant, idosi kunye nefuthe le-coagulation sedimentation. H + kunye oh-emanzini athatha inxaxheba ekuphenduleni i-hydrolysis ye-flocculants. Ke ngoko, ixabiso le-pH lichaphazela ngamandla i-hydrolysis rate ye-flocculants, iifom ezikhoyo kunye neepropathi ze-hydrolysates.

Umzekelo, xa ixabiso le-pH lingaphantsi kwe-4, i-Al3 + ayinakunyuswa i-hydrolyzed ukuya kwi-Al (OH) 3 ngesixa esikhulu, esikhona ikakhulu ngohlobo lwe-Al3 + ions, kunye nefuthe lokujiya libi kakhulu. Xa i-Al (OH) ifakwe i-hydrolyzed kwaye ifakwe ipolymer, kungcono ukuyipolisha kuluhlu lwe-pH 3.5 ~ 5. Xa ixabiso le-pH liphezulu kune-8, i-Al3 + ifakwe i-hydrolyzed ibe yi-AlO2 -, kwaye ifuthe lokujiya liba libi kakhulu.

Ubuncwane bamanzi bunempembelelo kwixabiso le-pH. Xa i-alkalinity ingonelanga, ikalika kunye nezinye iikhemikhali kufuneka zongezwe ukongeza. Xa ixabiso le-pH lamanzi liphezulu, kuyimfuneko ukongeza i-asidi ukulungelelanisa ixabiso le-pH ukungathathi hlangothi. Ngokuchasene noko, ifuthe lexabiso le-pH kwi-polymcc floccant lincinci.

 

Ubushushu bamanzi

Ubushushu bamanzi buchaphazela izinga le-hydrolysis ye-flocculant kunye nenqanaba lokwakheka kunye nolwakhiwo lwe-alum flocculent. Xa iqondo lobushushu lamanzi liphantsi, izinga lehydrolysis licotha kwaye aligqitywanga.

Kumaqondo obushushu asezantsi, i-viscosity yamanzi iphezulu, intshukumo ye-brownian ibuthathaka, amaxesha okungqubana kwamasuntswana e-colloidal e-flocculant kunye nokungahlambuluki kwamasuntswana emanzini ancitshisiwe, kunye namandla okucheba amanzi ayenyuka, okuthintela ukubambelela kwi-flocs. Ke ngoko, nangona idosi ye-flocculant inyukile, ukuyilwa kweeflcs kusacotha kakhulu, kwaye ulwakhiwo lukhululekile kwaye amasuntswana mancinci, ekunzima ukususa.

Ubushushu obuphantsi bunefuthe elincinci kwi-polymac flocculant. Nangona kunjalo, kufanele kuqatshelwe ukuba xa usebenzisa i-organic polymer flocculant, ubushushu bamanzi akufuneki bube phezulu kakhulu. Ubushushu obuphezulu buya kubangela ukuba i-organic polymer flocculant igugile okanye ibole ibe zizinto ezingenakunyibilika, ngaloo ndlela kuncitshiswe ukusebenza kwe-coagulation.

 

Ukungcola emanzini

Ubungakanani obungalinganiyo bamasuntswana okungahlambuluki emanzini kuyanceda ekuxinaneni, kwaye amasuntswana acocekileyo kwaye afanayo aya kukhokelela kwisiphumo sokungunda esibi. Ukuba ukuxinana kwamasuntswana okungahlambuluki kuphantsi kakhulu, ukusebenza kwe-coagulation kungaphuculwa nge-reflux sedimentation okanye ngokongeza uncedo lokuqina. Xa amasuntswana okungahlambuluki emanzini aqulathe isixa esikhulu sezinto eziphilayo, umphumo wokujiya uya kuba mbi, ke kuyimfuneko ukonyusa idosi okanye ukongeza ioksijini kunye nezinye izinto ezixineneyo. I-calcium kunye ne-magnesium ions, i-sulfide kunye ne-phosphates emanzini zihlala zilungele ukujiya, ngelixa ezinye ii-anion kunye nezinto ezisebenza umphezulu zineziphumo ezibi ekuxinaneni.

 

Iindidi ze-flocculant

Ukhetho lwe-flocculant ikakhulu luxhomekeke kwiipropathi kunye noxinaniso lweecolloid kunye nokuqina okuqinileyo emanzini. Ukuba ukungcola emanzini ubukhulu becala kukwimeko ye-colloidal, i-flocculant engaphiliyo kufuneka ikhethwe ukuyenza ingazinzi kwaye igodole. Ukuba i-floc incinci, kufuneka yongeze i-molecculant ephezulu okanye isebenzise i-silica gel kunye nezinye izixhobo zokuqinisa.

Kwiimeko ezininzi, ukudityaniswa kwe-flocculant engaphiliyo kunye nepolymer flocculant ngokuqinisekileyo kunokuphucula ukusebenza kwe-coagulation kunye nokwandisa uluhlu lwesicelo. Kwiipolymers, isixa esikhulu sokuhlawulisa kunye nokunyuka kokuxinana kweemolekyuli zetyathanga, kokukhona kwandiswe ngakumbi ikhonkco, kokukhona kubanzi umda wokubhangiswa kwe-adsorption, kunye nefuthe elingcono le-coagulation.

 

Isisombululo se-flocculant

Kunyango lwawo nawaphi na amanzi amdaka ngokuxinana, kukho owona mgangatho ungcono kunye nomthamo obalaseleyo, oqhele ukumiselwa luvavanyo. Ukuba idosi inkulu kakhulu, i-colloid iya kuzinza kwakhona. Uluhlu lomthamo wetyuwa yesiqhelo yentsimbi kunye ne-aluminium yetyuwa yi-10-100mg / L, leyo yetyuwa eyenziwe ngeplastikhi yi-1 / 2-1 / 3 yetyuwa eqhelekileyo, kunye ne-organic polymer flocculant yi-1-5mg / L.

 

Ukulandelelana ngokulandelelana kwe-flocculant

Xa kusetyenziswa iintlobo ezahlukeneyo ze-flocculants, kuyimfuneko ukumisela ulungelelwaniso oluphezulu lweedosi ngokusebenzisa imifuniselo. Ukuthetha jikelele, xa isonka esingagqwaliyo kunye ne-flocculant yezinto eziphilayo zisetyenziswa kunye, i-flocculant engaphiliyo kufuneka idityaniswe kuqala emva koko i-organic flocculant.

Xa i-flocculant ingaphezulu kwe-50 μ m, i-flocculant yongezwa kwi-colloid yokufunxa ukungcola.

 

Iimeko ngamanzi

Kwinqanaba lokuxuba, i-flocculant kunye namanzi kufuneka axutywe ngokukhawuleza nangokulinganayo. Kwinqanaba lokuphendula, akufuneki ukuba kudalwe kuphela amathuba angqubanayo kunye neemeko ezilungileyo zentengiso, ukuze ii-flocs zibe namathuba ngokwaneleyo okukhula, kodwa nokuthintela ii-flocs ezincinci ezaphukileyo, ngenxa yoko amandla okuxuba omelele.

 

Qhagamshelana ne- Nxibelelana ukuze ufumane izisombululo zobungcali.


Ixesha Post: Oct-30-2020
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