Ratu Safitri

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Ratu Safitri, Bambang Priadie, Anindhita Hawadish

    Research has been carried out to obtain an effective bacterial consortium in the biodegradation of domestic wastewater WWTP Bojongsoang. The method used in this study is an experimental method to completely randomized design (CRD) consisting of 2 factors and repeated 3 times. The first factor is the type of bacterial consortia, these were (k1) Consortium of Bacillus subtilis, Paenibacillus amylolyticus, Nitrosomonas, and Bacillus circulans, (k2) Consortium of Paenibacillus amylolyticus, Bacillus Nitrosomonas circulans, and Bacillus pumilus; (k3) Consortium of Bacillus subtilis, Nitrosomonas, Bacillus circulans and Bacillus pumilus; (k4) of domestic wastewater was heated; (k5) of domestic wastewater was not heated. The second factor is the time of bioremediation (T) of consisting of 8 levels, namely (t0) initial day, (t1) day 4, (t2) day 8, (t3) Day 12, (t4) Day 16 (t5) Day 20, (t6) Day 25. The results showed that the bioremediation by the consortium of Bacillus subtilis, Nitrosomonas, Bacillus circulans and Bacillus pumilus (k3) are effective in lowering the levels of domestic wastewater BOD 67.4 % of BOD, COD 66.3%, and 77.1% TSS.

Key words: Bioremediation, Domestic waste water, BOD, COD, TSS