ALUM OR ALUMINUM SULPHATE
Sell aluminum sulphate or alum serves as a coagulant to purify water.
Alum has been known as the flocculator WAD shit-dirt on the water treatment process. Alum is often as sharp water, turbidity in the water can be removed through the addition of a type of chemical called coagulant. On umumnya materials such as aluminum sulfate [Al2 (SO4) 3.18 H2O] or often called alum or alum, Aluminum sulphate, Poly fero Chlorida (PAC) and poly organic electrolyte can be used as a coagulant. To determine the optimal dosage of coagulant, pH and appropriate to be used in the water treatment process, simply can be done in the laboratory using a simple test (Alearts & Santika, 1984). Water treatment principle is to use the stability of particles