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Simbiosis Mutualisme Mikroalga Chlorella Sp Dengan Bakteri Pengurai B-Deco3 Dalam Menurunkan Kadar Polutan Limbah Cair Sagu
Sago liquid waste containing high levels of pollutants that harm the marine environment. Wastewater treatment sago be done before disposal, either the processing of biological, physical and chemical. This study uses aerobic biological treatment, utilizing the B-DECO3 degrading bacteria and Chlorella sp capable of symbiotic mutualism. Symbiotic mutualism between the B-DECO3 degrading bacteria and Chlorella sp will be able to reduce levels of pollutants sago waste water. The method used in the experiment with completely randomized design (CRD) comprised of 5 treatments and 3 replications. The treatments used against liquid waste sago is P0 (without degrading bacteria B-DECO3), P1 (5 ml bacterial decomposition B-DECO3), P2 (10 ml bacterial decomposition B-DECO3), P3 (15 ml bacterial decomposition B-DECO3) and P4 (20 ml bacterial decomposition B-DECO3). Observations were made on day 0 and day to-7, except for the parameters pH, DO, and an abundance of cells is done every day. Data were analyzed statistically using Analysis of variance (ANOVA) and Duncan’s Multiple Range Test (DNMRT) at 5% level. The results showed the role of symbiotic mutualism can reduce levels of pollutants wastewater sago. The best treatment is the addition of bacterial decomposition P4 B-DECO3 Chlorella sp 20 ml and 800 ml (abundance of 6.6 x 106 cells / mL). P4 treatment lowers the value of COD 90.29%, 82.74% BOD, TSS 84.52%, 82.85% Nitrate and Phosphate 98.66%, and increasing the pH value of 97.56%, 73.82% DO, and cell abundance 72.44% Chlorella sp.
Keywords: Bacteria Pengurai B-DECO3, Microalgae Chlorella sp, liquid waste sago
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