Disinfection of Effluents with Renewable Energy

Wastewater treatment is a process that converts wastewater from its unusable state into an effluent that can be either returned to the water cycle with minimal environmental issues or reused for another purpose. The wastewater treatment processes are high energy consumption. The power consumption of wastewater treatment plants is between 20 and 45 kWh/ (PE*a) [PE = Population Equivalent or unit per capita loading]. Power consumption depends not only on a plant's size, but also on its design. This study presents a way to save energy at the stage of the wastewater disinfection process by use solar energy rather than using chemical or fossil power. Renewable technologies are considered as clean sources of energy and optimal use of these resources. Minimize environmental impacts, produce minimum secondary wastes and are sustainable based on current and future economic and social societal needs, such as wastewater treatment. Renewable energy technologies provide an excellent opportunity for mitigation of greenhouse gas emission and reducing of global warming through substituting conventional energy sources.