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BIOFILTRATION KINETICS OF TOFU INDUSTRY WASTEWATER USING OF ZEOLITE MEDIUM
Abstract
This researchwas aimed to investigate reactionkinetic of tofu industrywastewater using zeolitemedium. A static
filter reactor using zeolitemediumwas constructed to carry out this research. Tofuwastewaterwas resirculated
through themedium with various hydraulic retention times (HRT): 0, 3, 6, 12, 24, 36, and 48 hours. First order
reactionwas then applied on this kinetics. The results showed that pHincreased from4.1 to 8.02. Total P in the
wastewater decreased from12,1mg/L to 6,91mg/L (42%reduction),while in themedia totalP increased from
3,04 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).
filter reactor using zeolitemediumwas constructed to carry out this research. Tofuwastewaterwas resirculated
through themedium with various hydraulic retention times (HRT): 0, 3, 6, 12, 24, 36, and 48 hours. First order
reactionwas then applied on this kinetics. The results showed that pHincreased from4.1 to 8.02. Total P in the
wastewater decreased from12,1mg/L to 6,91mg/L (42%reduction),while in themedia totalP increased from
3,04 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).
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