Waste water is not straightly flow to the water source, some purifying processes occur in the sewage disposal unit. The first step is channeling the polluted water through the main sewer into a settling tank. The solid pollutants are settled under the tank to be removed and burned.
The second step is pump up the water from settling tank by a pump house and the water jets on spinkler beds system with rotating arms for the third step. The jet of polluted water absorbed into the spinkle beds through the layers of brick work. At this progess, stones and micro-organism that still polluting the water are filtered. Under the sprinkler beds is main that allow the purified water entering the river.
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