CD Tugas Akhir
Pengolahan Air Sungai Siak Menggunakan Koagulan Tawas Dan Pac
Currently, the Siak river water is yellows colour, smells, contains organic subtances and acidic pH. People who live in the stream areas along the Siak river using the water directly. They used it for bathing, washing without processing it in advance. In this research, the water was treated by using coagulation, flocculation, sedimentation and filtration processes. The purpose of this study is to treat Siak river water into clean water with the above method and determine the effect of alum dosage and PAC used. Siak river water quality is determined based on water before and after processing with parameters of colour, odor, pH and Fe+3 ions. The results show that the best condition is that Siak river water becomes clear, odorless and undetected ion Fe+3 levels. This is obtained at the condition of using 22 ppm alum and 16 ppm PAC.
Keywords: water, jar test, pac, processing, and alum
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