KAJIAN APLIKASI KOAGULAN PAC DAN KOAGULAN ACH DI IPA PEJOMPONGAN II

Abstract

IPA Pejompongan I and IPA Pejompongan II, PT PALYJA used ACH as the main coagulant in 2016. However, to obtain an efficient coagulant, a study was conducted to find alternative coagulants. The alternative coagulant is PAC. In this case, data analysis of the application of PAC coagulant compared with ACH coagulant in IPA Pejompongan II related to variations in turbidity was carried out in order to explain the effectiveness between the use of PAC and ACH coagulants. Data on the quality of raw water, production water, and the use of coagulant doses of PAC and ACH were analyzed using the statistical method Independent Samples T Test resulted for the turbidity parameter with the maximum dose and the average dose (mode) obtained a p value of 0.000 while the minimum dose obtained a value of 0.000 p value of 0.071 using an alpha value of 5% (0.005), then for the maximum dose and the average dose (mode) the p value is smaller, while for the minimum dose the p value is greater. For the pH parameter with the maximum dose, the p value is 0.017 and with the average dose (mode) and the minimum, the p value is 0.000 using an alpha value of 5% (0.005), then for the maximum dose, the average (mode) is and the minimum p value is smaller. In addition to analyzing using statistical methods, the data is also analyzed through the calculation of the efficiency of removal of turbidity and efficiency of removal of organic matter.