| Abstrakt: |
Tofu X wastewater treatment technology in Padang Panjang City uses the Sequencing Batch Reactor (SBR) capacity of 0.34 m3/day. SBR is an anaerobic, economical, simple alternative wastewater treatment, effective in removing organic pollutants, has low operating and maintenance costs, little sludge formed. Tofu liquid waste generally contains high organic compounds, namely COD of 7,500 - 14,000 mg/l, TSS of 638 - 660 mg/l and Nitrate (NO3) of 3,5 - 4,0 mg/l. Collecting tubs have dimensions of 1 m in length, 1 m in width, 1.1 m in height, 0.4 m freeboard and 24 hour detention time. SBR designs for two stages, the volume of SBR 1 is 3.54 m3, and the volume of SBR 2 is 2.23 m3. The amount of sludge produced in accordance with TSS allowance that occurs in the reactor, SBR 1 is 0.173 kg / stage or 3.732x10−3 m3 / stage and SBR 2 is 0.026 kg / stage or 0.561x10−3 m3 / stage. Real estimation of cost of tofu wastewater treatment by using an SBR is Rp. 17,600,000 (Seventeen Million six Hundred Thousand Rupiahs). SBR operation is 5 minutes charging, 90 minutes reaction. Sixty minutes of deposition, 5 minutes of drainage, 30 minutes of stabilization, time of each stage 190 minutes. [ABSTRACT FROM AUTHOR] |
