EFEK VOLUME KOAGULAN CAIR DARI LEMPUNG ALAM DALAM PENGOLAHAN AIR GAMBUT
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Date
2017-01-06
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Abstract
Cengar clay has been studied as a source of coagulant but did not provide satisfactory
results. In this research the effectivity of liquid coagulant was studied by differences
volume of liquid coagulant that given to amount of peat water. Liquid coagulant was made
by calcination at 700°C for 2 hours and extracted with 0.2 mol H2SO4 solution at 80°C for 2
hours. The liquid coagulant was characterized using AAS. Coagulation of peat water was
done using variation of coagulant volume (35,70 and 105 mL) by measuring parameters of
color and turbidity. The results of peat water parameters after treatment were compared to
PP No.82 of 2001 on Water Quality and Water Pollution Control and PERMENKES 416/
Health Minister/PER/IV/1990 about Drinking Water Quality. Characterization of liquid
coagulant showed that the contents of Al(III) was 223.72 mg L-1 and Fe(III) was 10.38 mg
L-1. The result of coagulation showed that K 35:700 gave higher removal percentage than the
other with removal efficiency of color and turbidity were 88.9 % and 72.4 % respectively .
The turbidity result was in accordance with the quality standards of clean water.
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Keywords
Cengar clay, liquid coagulant, peat water