Polyaluminium chlorideyog ib qho flocculant ua haujlwm tau zoo heev, feem ntau siv rau hauv cov dej phwj hauv nroog thiab kev kho dej khib nyiab hauv kev lag luam. Nws muaj cov yam ntxwv ntawm kev ua haujlwm siab thiab kev ruaj khov. Thaum peb tham txog PAC, ib qho ntawm cov cim qhia feem ntau hais txog yog basicity. Yog li basicity yog dab tsi? Basicity muaj qhov cuam tshuam li cas rau qhov zoo ntawm polyaluminium chloride? Kev nkag siab txog lub tswv yim no yuav muaj kev cuam tshuam loj rau kev xaiv ntawm polyaluminium chloride.
Basicity hauv polyaluminium chloride yog dab tsi?
Hauv PAC, qhov basicity yog hais txog qhov piv ntawm molar ntawm hydroxyl pawg rau txhuas ions. Nws feem ntau yog qhia ua basicity (B):
B = [OH]-] / [Al3+]
Qhov yooj yim yog ib qho ntawm cov cim qhia kev ua tau zoo tshaj plaws ntawm polyaluminium chloride. Nws cuam tshuam ncaj qha rau cov nyhuv flocculation ntawm PAC.
Peb lub tuam txhab muab ntau hom PAC nrog qhov yooj yim txij li 40% txog 90%.
Lub mechanism ntawm kev cuam tshuam ntawm basicity rau polyaluminium chloride
Qhov Basicity cuam tshuam rau kev ua haujlwm ntawm PAC los ntawm kev cuam tshuam rau cov polymer morphology thiab kev faib tawm ntawm PAC. Alkalinity txiav txim siab qib ntawm polymerization ntawm aluminium hydroxyl complexes hauv PAC. Basicity siab dua yog qhov zoo rau kev tsim PAC nrog qib polymerization siab thiab txhim kho nws cov nyhuv flocculation. Thiab qhov basicity yuav cuam tshuam rau qhov kev faib tawm ntawm PAC thiab nws lub peev xwm adsorption rau cov tshuaj tsis zoo.
Cov nyhuv ntawm qhov yooj yim rau PAC:
Qhov basicity tsim nyog tuaj yeem ua kom zoo dua qhov flocculation effect ntawm polyaluminium chloride. Basicity qis dhau yuav ua rau tsis txaus hydrolysis ntawm PAC thiab txo qhov flocculation effect.
Qhov basicity kuj tseem yuav cuam tshuam rau qhov loj me, qhov ceev thiab qhov nrawm ntawm cov dej phwj tuaj ntawm polyaluminium chloride. Qhov basicity tsim nyog tuaj yeem ua tau qhov no zoo heev.
Yog li ntawd, nws yog ib qho tseem ceeb heev uas yuav tsum xaiv tus qauv PAC uas tsim nyog raws li koj xav tau.
Peb tuaj yeem muab cov qauv PAC hauv qab no:
| Khoom | PAC-I | PAC-D | PAC-H | PAC-M | PAC-G |
| Qhov tsos | Hmoov daj | Hmoov daj | Hmoov dawb | Mis hmoov | Hmoov dawb mis nyuj |
| Cov Ntsiab Lus (%, Al2O3) | 29 ± 1 | 30 ± 1 | 30 ± 1 | 30 ± 1 | 30 ± 1 |
| Qhov yooj yim (%) | 40 – 90 | 40 – 90 | 40 – 90 | 40 – 90 | 40 – 90 |
| Cov khoom tsis yaj hauv dej (%) | 1.0 MAX | 0.6 SIAB TSHAJ PLAWS | 0.6 SIAB TSHAJ PLAWS | 0.6 SIAB TSHAJ PLAWS | 0.6 SIAB TSHAJ PLAWS |
| pH | 3.0 – 5.0 | 3.0 – 5.0 | 3.0 – 5.0 | 3.0 – 5.0 | 3.0 – 5.0 |
Peb ua kev tswj xyuas zoo nruj rau peb cov chaw tsim khoom polyaluminium chloride thiab tuaj yeem ua cov lus qhia txog tus qauv raws li cov neeg siv khoom xav tau sib txawv, muab cov neeg siv khoom nrog PAC zoo uas ua tau raws li lawv xav tau. Peb pab neeg muag khoom muaj kev paub nplua nuj hauv kev xaiv cov khoom thiab tuaj yeem muab cov lus qhia tshaj lij rau cov neeg siv khoom thiab cov qauv tsim nyog rau cov neeg siv khoom los ua cov kev sim beaker.
Yog tias koj tab tom nrhiav ib qho kev ntseeg siabTus Muab Khoom PACRau kev kho dej haus, kev kho dej khib nyiab hauv kev lag luam lossis lwm yam kev siv, peb tuaj yeem muab PAC tshwj xeeb kom tau raws li koj xav tau. Tiv tauj peb tam sim no kom paub ntau ntxiv txog peb cov khoom lag luam PAC ua tau zoo thiab tau txais tus nqi sib tw!
Lub sijhawm tshaj tawm: Lub Peb Hlis-27-2025
