INITIAL STUDY OF THE POLLUTION LOAD ASSESSMENT FROM DOMESTIC WASTEWATER AND THE APPLICATION OF MICROOGANIC PRODUCTS FOR TREATMENT OF ORGANIC MATTER IN TO LICH RIVER

Abstract

To Lich river is located in the middle of Hanoi, the country’s political cultural centre, but still suffers from serious pollution. Despite receiving a lot of attention and investment from all levels and sectors, and although many domestic and foreign projects have been implemented, the results have not been as expected. To contribute to the mitigation of river water pollution, we conduct the research on treament of To Lich River water by using Sagi Bio 2 biological product. The use of biological products will limit the impacts on humans and the environment compared to conventional chemical treatment measures. The study carried out several actual sampling and treatment at laboratory-scale. The analysis results showed that To Lich River water has been heavily polluted. The study conducted experiments to treat To Lich River water using the biological product with a dosage of 2 ml/L in the condition of no aeration, achieving a good result. COD concentration reduced by 90%, meeting the standard. Although Phosphate concentration was still over the standard, it reduced about 41%. Nitrat concentration before treatment was under the standard and tended to reduce after treatment.