Combinative treatment of wastewaters by hybrid upflow anaerobic sludge blanket reactor and solar photo fenton process

Abstract

Rapid increase in industrialisation leads to the generation of large volume of wastewater with high organic pollution load, which ultimately affects the water quality. When such untreated wastewaters discharged into land, water bodies and sewers it create more problems. Wastewater generated from various source is not only an extensive harm to environment but also possess more ill effects. In general industrial wastewater can be treated using anaerobic or aerobic treatment systems. Aerobic treatment demands high energy for treating wastewater. In contrast, anaerobic treatment system is a promising technique to treat wastewater by utilizing less energy and gain more energy in the form of biogas. Anaerobic treatment is a most commonly practiced technique for treating wastewater with high organic content. In addition to wastewater treatment, it produces the fuel gas, methane. Among several anaerobic treatments, the Hybrid Upflow Anaerobic Sludge Blanket (HUASB) reactor is widely employed in the treatment of domestic and industrial wastewater. The advantages of using HUASB include better gas-solid separation, prevention of the formation of a dead area inside the reactor, and the attached growth process. A limitation of the HUASB treatment is that the effluent cannot achieve the disposal standards, which necessitates further treatment of HUASB-treated wastewater. In the first study, chocolaterie wastewater was treated by combining the primary anaerobic treatment followed by the solar photo Fenton process. newline