DefinePK

Abstract

The river located in inner areas of Hanoi are seriously polluted day by day, especially To Lich River. To Lich River is mainly polluted by the type of domestic wastewater of Hanoi. This study was conducted to assess the water quality of To Lich River and the effects of pressure of forced aeration method obtained by enhancement of hydrostatic pressure (aerating at 0.25, 2.00 and 4.00 meters of depth) on the ability to dissolve oxygen into water and digestion of organic subtracts in To Lich River. When aerating at 4.00 m of depth, approximately 0.4 atm of enhanced pressure, the performance of organic waste treatment for the upper layer and lower layer are 66% and 58% respectively. This study approach towards sustainable development in order to minimize the use of materials and the generation of waste from treatment, simultaneously enhance the self-cleaning capacity of Inner River, thereby to exploit the natural resources in rational and economical ways.