ABSTRACT: Activated and
impregnated TiO2 zeolite systems to reduce TSS, BOD, and COD of tofu industrial
wastewater in Cilongok Villages had been developed. Activated and impregnated
zeolite systems were expected to be able to reduce the concentration of TSS,
BOD, and COD. Thus, the research was aimed to know the ability of zeolite
systems to reduce the concentration of TSS, BOD, and COD of tofu industrial
wastewater. The research used five difference loading rates of tofu industrial
wastewater which were 160, 240, 320, 400, and 480 L m-2 day-1. The most
effective loading rate was determined by analyzing the concentration of TSS,
BOD, and COD before and after processing using zeolite systems. The reduced
concentration of TSS, BOD, and COD was determined by filling the activated and
impregnated zeolite with industrial wastewater for 24 hours continuously in 30
days. Sampling was done in every 5 days with loading rate of 320 L m-2 day-1.
The results indicated that zeolite systems could reduce the concentration of
TSS, BOD, and COD of tofu industrial wastewater. The optimum loading rate to
reduce the concentration of TSS, BOD, and COD was 320 L m-2 day-1. The
efficiency of acid activated zeolite system in reducing the concentration of
TSS, BOD, and COD were 83.348%, 91.899%, and 90.700%, respectively. The
efficiency of base activated zeolite system in reducing the concentration of
TSS, BOD, and COD were 84.380%, 93.711%, and 91.928%, respectively. The
efficiency of impregnated zeolite system in reducing the concentration of TSS,
BOD, and COD were 82.410%, 90.711%, and 89.917%, respectively.
Keywords: TSS, BOD, COD, tofu
industrial wastewater
Penulis: Suyata, Irmanto
Kode Jurnal: jpkimiadd090046
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