Flocculation le reverse flocculation

PHATLALATSO
Lefapheng la k'hemistri, flocculation ke ts'ebetso eo ka eona likaroloana tsa colloidal li hlahang ho tsoa ho precipitate ka sebopeho sa flocculent kapa flake ho tloha ho emisoa ka boithatelo kapa ka ho eketsoa ha tlhakiso.Ts'ebetso ena e fapana le pula ka hore colloid e emisoa feela ka har'a mokelikeli e le ho qhalakanngoa ho tsitsitseng pele ho flocculation 'me ha e le hantle ha e qhibilihe ka tharollo.
Coagulation le flocculation ke mekhoa ea bohlokoa ea phekolo ea metsi.The coagulation bohato ke ho destabilize le aggregate likaroloana ka ho sebelisana lik'hemik'hale pakeng tsa coagulant le colloid, le flocculate le precipitate likaroloana tse sa tsitsang ka coagulating bona ka flocculation.

TLHALOSO LEBAKA
Ho ea ka IUPAC, flocculation ke "mokhoa oa ho kopana le ho khomarela moo likaroloana tsa ho hasana li theha lihlopha tsa boholo bo boholo".
Ha e le hantle, flocculation ke mokhoa oa ho eketsa flocculant ho senya likaroloana tse qositsoeng tse tsitsitseng.Ka nako e ts'oanang, flocculation ke mokhoa oa ho kopanya o khothalletsang agglomeration le ho kenya letsoho ho rarolla likaroloana.Coagulant e tloaelehileng ke Al2 (SO4) 3• 14H2O.

Sebaka sa kopo

THEKNOLOJI YA PHEKO METSING
Flocculation le pula li sebelisoa haholo ho hloekisa metsi a nooang le kalafo ea likhoerekhoere, metsi a sefefo le metsi a litšila a indasteri.Mekhoa e tloaelehileng ea phekolo e kenyelletsa gratings, coagulation, flocculation, precipitation, particle filtration le disinfection.
SEBAKA CHEMISTRI
Ka k'hemistri ea colloidal, flocculation ke mokhoa oo likaroloana tse ntle li kopantsoeng hammoho.Floc e ka 'na ea phaphamala ka holim'a mokelikeli (opalescent), ea lula ka tlas'a metsi (precipitate) kapa e sefa habonolo ka ntle ho metsi.Boitšoaro ba flocculation ea colloid ea mobu bo amana haufi-ufi le boleng ba metsi a hloekileng.Phatlalatso e phahameng ea colloid ea mobu ha e bake feela metsi a pota-potileng ka kotloloho, empa hape e baka eutrophication ka lebaka la ho monya limatlafatsi linōkeng, matšeng esita le sekepe sa metsing.

KHAMELI CHEMELI
Bakeng sa li-emulsions, flocculation e hlalosa ho bokellana ha marotholi a le mong a qhalakaneng e le hore marotholi ka bomong a se ke a lahleheloa ke thepa ea ona.Kahoo, flocculation ke mohato oa pele (droplet coalescence le karohano ea mohato oa ho qetela) e lebisang ho tsofala ho eketsehileng ha emulsion.Li-flocculants li sebelisoa molemong oa liminerale, empa hape li ka sebelisoa ho rala thepa ea 'mele ea lijo le lithethefatsi.

TS'ELISITSOE

Reverse flocculation ke ntho e fapaneng haholo le flocculation 'me ka linako tse ling e bitsoa gelling.Sodium silicate (Na2SiO3) ke mohlala o tloaelehileng.Likaroloana tsa Colloidal hangata li qhalakanngoa libakeng tse phahameng tsa pH, ntle le matla a tlase a ionic a tharollo le ho busa ha li-cations tsa tšepe tse le 'ngoe.Li-additives tse thibelang colloid ho etsa flocculent li bitsoa antiflocculants.Bakeng sa flocculation e khutlisetsang morao ka litšitiso tsa electrostatic, phello ea flocculant e ka morao e ka lekanyetsoa ka bokhoni ba zeta.Ho latela Encyclopedia Dictionary of Polymers, antiflocculation ke “boemo kapa boemo ba ho hasana ha ntho e tiileng mokelikeling oo ho oona karohano e ’ngoe le e ’ngoe e tiileng e lulang e ikemetse ’me e sa hokahane le baahisani ba eona (haholo-holo joaloka ntho e etsang emulsifier).Ho emisoa ho sa tsitsang ho na le lihlahisoa tse fokolang kapa tse tlase haholo ".
Reverse flocculation e ka ba bothata litsing tsa ho hloekisa likhoerekhoere kaha hangata ho lebisa mathateng a ho rarolla likhoerekhoere le ho senyeha ha boleng ba metsi a litšila.