Effectiveness of Poly Aluminum Chloride Coagulant On The Performance of IPAM Badaksinga, Bandung City

The Badaksinga Drinking Water Processing Installation is an installation owned by Perumda Tirtawening Water, Bandung City, has 2 of these installations, the first which a design from Degremont - France, built around 1954 with capacity 1000 liters/second. second IWACO-Dutch flow rate 800 raw water for two installations comes Cisangkuy River and Cikapundung River. To purify water, PAC (Poly Aluminum Chloride) used as coagulant complex inorganic compound clear to yellowish color. addition process must be carried out efficiently because this coagulation chemical that requires large amount money treatment apart chlorination. Excessive doses will cause cost using chemicals swell so it have impact on overall operational costs. purpose study was determine effectiveness in reducing turbidity, form optimum dose coagulant, turbidity pH. method Jar Test tool test ability coagulants process. From samples, varied 17.1 281 NTU, fluctuating due geographical location environmental conditions each degree acidity or average pH 7.13. After out, produced at concentration 30 mg/l resulting range 1.1 5.0 NTU reduction efficiency 94.5%, after flocculation simulation tool, there decrease 4.1% 6.99. This result accordance Minister Health Regulation No 492/MENKES/PER/10/2010 April 19 2020, namely no more than 5 6.5 – 8.5