Optimasi Penggunaan Hidrogen Peroksida (H2O2) Terhadap Penurunan Kadar Sianida Pada Limbah Cair
ABSTRACT: Optimation studies
have been conducted using hydrogen peroxide (H2O2) to the reduction of cyanide
levels in the wastewater. Parameters studied were the optimum concentration of
hydrogen peroxide (H2O2), the optimum pH and optimum contact time between hydrogen
peroxide (H2O2) with wastewater in reducing the cyanide content. Cyanide
obtained from steam distillation of liquid waste and the assay using 0.02N
silver nitrate. Concentration used were 500 ppm, 400 ppm, 300 ppm, 200 ppm and
100 ppm; pH range is (7, 8, 9, 10 and 11) and the variation of the contact time
is: 0, 30, 60, 90, 120 and 150 minutes. The result of the research reveals at
early treatment the cyanide content is 50,22% w / w and underwend a reduction
in levels after addition of various concentrations of H2O2; variations in pH
variation of contact time. Optimum condition treatment at 500 ppm of H2O2 basicity at pH 8 and contact time for 60
minutes result reduction of cyanide level of 36,40% w/w, 40,91% w/w and 37,09%
w/w respectively.
Penulis: Muntasir, M. Sjahrul, Muhammad Zakir, Indah
Raya
Kode Jurnal: jpkimiadd150713
