Flocculent vs Coagulant
Kev sib xyaw yog cov khoom sib txawv, uas yog lub cev ua ke, tab sis tsis txhob koom nrog tshuaj. Cov khoom sib xyaw ua kom pom cov khoom sib txawv ntawm lub cev lossis tshuaj lom neeg ntau dua li cov khoom sib txawv. Khoom, gaseous, los yog kua tshuaj yog tov nyob rau hauv sib txawv ratios, nyob rau hauv cov mixs. Lub xeev ntawm cov khoom nyob rau hauv cov kev sib tov yuav txawv thiab, nyob ntawm seb, muaj ntau hom kev sib tov raws li kev daws teeb meem, colloids, thiab lwm yam. Coagulation thiab flocculation yog ob txoj hauv kev los cais tawm cov khoom tshem tawm hauv kev daws teeb meem. Coagulants thiab flocculants yog tsim los pab cov txheej txheem no. Txawm hais tias coagulation thiab flocculation yog siv sib hloov, lawv yog ob txoj kev sib txawv.
Coagulant
Colloidal tov yog pom raws li homogeneous sib tov, tab sis nws tuaj yeem ua ntau yam zoo li (xws li mis nyuj, pos). Cov khoom hauv cov tshuaj colloidal yog qhov loj me me (loj dua li cov molecules) piv rau cov khoom hauv cov kev daws teeb meem thiab kev ncua. Txawm li cas los xij, raws li cov khoom siv hauv cov kev daws teeb meem, lawv pom tsis tau ntawm qhov muag liab qab thiab tsis tuaj yeem lim tau siv daim ntawv lim. Cov khoom nyob rau hauv ib tug colloid yog hu ua dispersed khoom, thiab cov dispersing nruab nrab yog analogous rau cov hnyav nyob rau hauv ib tug tov. Cov khoom yog muab faib rau hauv qhov nruab nrab colloidal, thiab tsis txhob khom yog tias nws tseem tshuav. Colloidal daws yog translucent los yog opaque. Qee zaum cov khoom hauv colloid tuaj yeem sib cais los ntawm centrifugation lossis coagulation.
Coagulation txhais tau tias yog txheej txheem uas cov khoom sib cais colloidal agglomerate. Cov khoom raug tshem tawm feem ntau yog me me, thiab lawv yuav muaj hluav taws xob them rau lawv lossis nruab nrab ntawm cov khoom. Feem ntau cov no yog cov nqi tsis zoo, uas ua rau lawv tawm tsam ib leeg. Coagulants yog siv los nruab nrab cov nqi no. Lawv neutralize cov hluav taws xob tsis txaus ntseeg ntawm cov khoom me me los ntawm ib puag ncig lawv. Qhov no tso cai rau cov khoom tuaj ua ke thiab tsim cov pawg loj dua. Cationic coagulants feem ntau siv rau qhov no. Tom qab cov coagulants ntxiv, cov sib tov yuav tsum tau sib tov sai sai thiaj li yuav tawg cov coagulants thoob plaws hauv cov kua. Coagulants tuaj yeem yog cov ntsev ntsev (xws li alum) lossis polymers. Polymers tuaj yeem yog cationic, anionic lossis nonionic.
Flocculent
Flocculants kuj tau ntxiv los pab txhawb qhov kev daws teeb meem ntawm cov khoom tshem tawm hauv kev daws teeb meem. Flocculants pab txhawb lub agglomeration thiab, yog li ntawd, ua floccules loj. Cov no zoo li nyob ruaj vim yog lub zog gravitational. Flocculants sim txuas cov molecules ua pawg. Piv txwv li, ib qho anionic flocculent yuav hnov mob nrog lub zog zoo polymer thiab yuav adsorb cov khoom. Qhov no tuaj yeem ua rau muaj kev puas tsuaj vim yog kev them nqi nruab nrab lossis kev sib txuas. Hauv flocculation, flocculants yog ntxiv maj mam thiab sib tov maj mam. Yog li ntawd, me me flocs tuaj yeem agglomerate rau hauv cov khoom loj.
Qhov txawv ntawm Flocculent thiab Coagulant yog dab tsi?
• Cov pob zeb tiag tiag yog tsim los ntawm cov pa roj carbon, muaj qhov ntsuas ntsuas siab dua, hnyav hnyav dua piv rau cov pob zeb diamond cuav thiab tawm lub teeb xiav thaum raug lub teeb infrared
• Pob zeb diamond cuav feem ntau yog tsim los ntawm silicon carbide lossis iav, muaj qhov ntsuas qis dua, hnyav dua piv rau cov pob zeb diamond tiag tiag thiab tawm lub ntsej muag daj thaum raug ultra violet lub teeb.
