Penentuan Dosis Optimum Poly Aluminium Chloride (PAC) pada Air Baku dengan Metode Jar Test di Instalasi Pengolahan Air Minum (IPAM) Sunggal

Abstract

An analysis of Determining the Optimum Poly Aluminum Chloride (PAC) Dosage in Raw Water Using the Jar Test Method at the Sunggal Drinking Water Treatment Plant (IPAM) has been carried out. This research aims to determine the optimum dosage for using coagulants or chemicals in the coagulation-flocculation process at the Sunggal Drinking Water Treatment Plant (IPAM). For this reason, researchers carried out laboratory tests using the Jar Test method with Poly Aluminum Chloride (PAC) coagulant. From the results of the analysis carried out for 1 month, the optimum dose of Poly Aluminum Chloride (PAC) was obtained, namely 25 ppm with a turbidity of 1,12 NTU, 20 ppm with a turbidity of 1,76 NTU, 15 ppm with a turbidity of 1,51 NTU, 15 ppm with a turbidity of 1,62 NTU. From the results of the analysis of determining the optimum dose of Poly Aluminum Chloride (PAC) obtained for one month, it meets the standards set by the Republic of Indonesia Minister of Health Regulation No. 492/MENKES/PER/IV/2010, that the maximum level allowed for physical parameters of turbidity is 5 NTU.