Waste stabilization ponds are used for treating wastewater. They are just like ones but man-made. Large ponds are constructed and they maybe link with one another to enhance the waste stabilization. These ponds make use of the principles of sedimentation, filtration, nitrification, denitrification and biodegradation. These ponds will reduce the solids, BOD, and Pathogens in the effluents. They have low operating costs and do not require electricity. If designed properly, they can be odor-free. However, they require large areas and highly accurate design and construction.
There are three types of pond
Anaerobic ponds Aerobic ponds Facultative ponds
This methods produces a low quality effluent which has to be further treated before disposal.