UKUGUQUKA
Kwintsimi yekhemistri, i-flocculation yinkqubo apho amasuntswana e-colloidal avela kwi-precipitate kwifom ye-flocculent okanye ye-flake ukusuka ekumisweni ngokuzenzekelayo okanye ngokongezwa kwe-clarifier.Le nkqubo iyahluka kwimvula kuba i-colloid inqunyanyiswa kuphela kulwelo njengendlela yokusasazwa okuzinzileyo phambi kokuba i-flocculation kwaye ayinyibilikisiwe kwisisombululo.
I-Coagulation kunye ne-flocculation yinkqubo ebalulekileyo kunyango lwamanzi.Isenzo se-coagulation kukuphazamisa kunye nokudibanisa amasuntswana ngokusebenzisana kweekhemikhali phakathi kwe-coagulant kunye ne-colloid, kunye ne-flocculate kunye ne-precipitate amasuntswana angazinzanga ngokuwadibanisa kwi-flocculation.
TERM INKCAZELO
Ngokutsho kwe-IUPAC, i-flocculation “yinkqubo yoqhagamshelwano kunye nokuncamathela apho amasuntswana osasazo enza amaqela amakhulu”.
Ngokusisiseko, i-flocculation yinkqubo yokongeza i-flocculant ukumisa amasuntswana ahlawuliweyo azinzileyo.Ngelo xesha, i-flocculation yindlela yokuxuba ekhuthaza i-agglomeration kwaye ifake isandla kwi-particle settlement.I-coagulant eqhelekileyo yi-Al2 (SO4) 3• 14H2O.
Indawo yosetyenziso
ITEKNOLOJIYA YONYANGO LWAMANZI
I-Flocculation kunye nemvula zisetyenziswa ngokubanzi ekucoceni amanzi okusela kunye nokunyangwa kwamanzi amdaka, amanzi emvula kunye namanzi amdaka emizi-mveliso.Iinkqubo zonyango eziqhelekileyo ziquka i-gratings, i-coagulation, i-flocculation, i-precipitation, i-particle filtration kunye ne-disinfection.
IKHEMIstry yoMphezulu
Kwimichiza ye-colloidal, i-flocculation yinkqubo apho amasuntswana amahle ahlanganiswe ndawonye.Iflokhi inokudada ngaphezulu kolwelo (i-opalescent), ihlale ezantsi kulwelo (imvula) okanye ihluze ngokulula kulwelo.Indlela yokuziphatha ye-flocculation ye-colloid yomhlaba inxulumene ngokusondeleyo nomgangatho wamanzi ahlaziyekileyo.Ukusasazwa okuphezulu kwecolloid yomhlaba akubangeli ngokuthe ngqo kuphela ukungqubana kwamanzi ajikelezileyo, kodwa kubangela i-eutrophication ngenxa yokufunxwa kwezondlo emilanjeni, kumachibi kunye nakwi-submarine hull.
IKHEMIstry YOMZIMBA
Kwi-emulsions, i-flocculation ichaza ukudityaniswa kwamathontsi asasazekileyo ahlukeneyo ukuze amathontsi ngamanye angaphulukani neepropathi zawo.Ngaloo ndlela, i-flocculation yinyathelo lokuqala (i-droplet coalescence kunye nokuhlukana kwesigaba sokugqibela) esikhokelela ekugugeni okuqhubekayo kwe-emulsion.I-Flocculants isetyenziswa kwi-mineral beneficiation, kodwa ingasetyenziswa kuyilo lweempawu ezibonakalayo zokutya kunye neziyobisi.
PHUMULA
I-Reverse flocculation ichasene ngqo ne-flocculation kwaye ngamanye amaxesha ibizwa ngokuba yi-gelling.I-sodium silicate (Na2SiO3) ngumzekelo oqhelekileyo.Amasuntswana e-Colloidal adla ngokuhlakazwa kuluhlu oluphezulu lwe-pH, ngaphandle kwamandla aphantsi e-ionic esisombululo kunye nokulawula kwee-cations zetsimbi ze-monovalent.Izongezo ezithintela i-colloid ekwenzeni i-flocculent zibizwa ngokuba yi-antiflocculants.Ukubuyisela umva ngokusebenzisa izithintelo ze-electrostatic, umphumo we-flocculant umva unokulinganiswa ngekhono le-zeta.Ngokutsho kweEncyclopedia Dictionary of Polymers, iantiflocculation “yimeko okanye imeko yokusasazeka kwesiqina kulwelo apho isuntswana ngalinye eliqinileyo lihlala lizimele yaye lingadityaniswanga kubamelwane balo (kanye njengesixhobo sokwenza ulwelo).Ukunqunyanyiswa okungashukumiyo kunoziro okanye amaxabiso esivuno aphantsi kakhulu “.
Ukubuyisela umva i-flocculation inokuba yingxaki kwizityalo zokucocwa kwamanzi amdaka njengoko ihlala ikhokelela kwiingxaki zokulungisa udaka kunye nokuwohloka komgangatho wamanzi amdaka.
Ixesha lokuposa: Mar-03-2023