BIOFILTRATION KINETICS OF TOFU INDUSTRY WASTEWATER USING OF ZEOLITE MEDIUM

Rodiyanti Rodiyanti
Sugeng Triyono (Universitas Lampung)
Nugroho Haryono (Unversitas Lampung)

Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering)
Vol 3, No 3 (2014)

This researchwas aimed to investigate reactionkinetic of tofu industrywastewater using zeolitemedium. A staticfilter reactor using zeolitemediumwas constructed to carry out this research. Tofuwastewaterwas resirculatedthrough themedium with various hydraulic retention times (HRT): 0, 3, 6, 12, 24, 36, and 48 hours. First orderreactionwas then applied on this kinetics. The results showed that pHincreased from4.1 to 8.02. Total P in thewastewater decreased from12,1mg/L to 6,91mg/L (42%reduction),while in themedia totalP increased from3,04 mg/L to 5,97 mg/L within 48 hours of filtration. N-NH4+ decreased from 64.184 mg/L to 12.85 mg/L(79.9%reduction). Total Solids decreased from 10.404mg/L to 4003m(61.5%reduction).