Pengaruh Kecepatan Gradien dan Waktu Tinggal Terhadap Koagulasi – flokulasi Warna dan Zat Organik Air Sumur Dalam
ABSTRACT: The treatment of
deep well water of Trisakti University by coagulation and flocculation using
baffle channel system has been conducted. The detention time of hydrolic were
varied. The coagulant dose was varied as 50, 100, 150, 200, 300, 350, 400, 450
and 500 ppm. Water of well sampel was added by coagulant with rotation velocity
200 rpm for 1 minute. The optimal coagulant dose was determined by measuring
turbidity, colour, total suspended solids and organic compound. The result
showed that the organic compound and colour of deep well water of Trisakti
University could be reduced by coagulation and flocculation process by hydrolyc
system. The optimal dose of the coagulant was 250 ppm. The removal efficiency
of colour and organic compound using optimal dose for continuous flow reactor
reached after water flow passed the reactor for 3 - 5 times detention time in
the reactor. The optimal gradient velocity (G) was 30 - 35 sec-1 and collision
energy (GT) was 65.000 - 79.000 to get optimal flocculation. With this condition,
the removal efficiency of turbidity, colour and organic was more than 90%.
Penulis: Muhamad Lindu
Kode Jurnal: jpkimiadd080108
