Pemanfaatan Lumpur Limbah Cair Industri Crumb Rubber Sebagai Adsorben Ion Cr(VI) yang Diaktivasi dengan KOH
Abstract: Wastewater treatment
with activated sludge method creates other waste in sludge form that becomes
new problem for the crumb rubber industry. It is necessary to find a solution
for their utilization. Research on utilization of sludge of crumb rubber industry as an adsorbent of ion
Cr (VI), which is activated by KOH has been carried out with variations
treatment of adsorbent from fresh sludge and from the sludge that carbonized
and activated with KOH. The results revealed that the sludge contain high
silica and alumina which is 49.02% and 16.498% respectively, that mean it can
be used as an adsorbent. The optimum
adsorbent pH of activated sludge was pH1 and pH2 for fresh sludge. The optimum
contact time obtained at 120 minutes and the optimum concentration of Cr (VI)
for each adsorbent was 70 mg / L. the maximum absorption capacity for Cr (VI)
adsorption by Langmuir equation by activated sludge adsorbent is at 2.232 mg /
g fresh sludge and adsorbent for 2,075
mg / g.
Penulis: Mardiati, Salmariza
Sy, Mawardi
Kode Jurnal: jpkimiadd130529
