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Aims: This research study aims at ascertaining the inhibitive contributions of these domestic effluents even as they flow from drains into the rivers.Study Design: The microbiological and physico-chemical composition of domestic wastewater in Rivers and Bayelsa States was achieved experimentally.Place and Duration of Study: The study was carried out in Rivers and Bayelsa states, Nigeria, between August 20016 and January 2017.Methodology: The waste water samples were aseptically collected from domestic points using 1 litre sterile polyethylene bottles filled with ice and was immediately taken to the laboratory for analysis to improve reliability of data and they were stored at 4°C for further analysis.Results: The physicochemical analysis of wastewater collected from 20 stations were investigated. These parameters were analyzed by standard methods. The color of the collected sewage water was pale yellow to black and was turbid in some selected stations. Unpleasant odor was observed in all selected stations. The pH of the wastewater varied from 6.0 to 7.3, while the water conductivity ranges from 650 to 2390 μScm-1. The maximum total suspended solid was 182 mg/l, and the maximum biological oxygen demand was 569.5 mg/l. The chemical oxygen demand of the selected stations varied widely (507.1 – 602.9 mg/l), and the dissolved oxygen content varied from 0.01 to 0.242 mg/l. The nitrate content was found to be maximum in station G (18.5 ppm), and the samples show high content of bacteria in all the stations.Conclusion: This study anchors on the need for effective sewage treatment of domestic, industrial and municipal effluent before they are discharged into the environment. This will help to meet up with the long-term challenges of environmental pollution, improve standard of living and health, and also enhance economic opportunities and good sustainable development

Evaluation of Some Microbiological and Physico-chemical Composition of Domestic Wastewater in Rivers and Bayelsa States