Palm oil wastewater is very dangerous if flowing directly to the environment because they have highly pH content, total suspended solid (TSS) and chemical oxygen demand (COD). One of the treatment is combination of anaerob ...

Cengar clay was used as raw material for synthesis liquid coagulant. The liquid coagulant was prepared through extraction of Cengar clay (calcination at 700oC for 3 hours) by 0.2 mol sulfuric acid solution at temperatures ...