Sewer Disposal Unit

At the sewer disposal unit there are three stages for cleaning the sewer. First, the polluted water is collected in a settling tank from the main sewer. The settling tank contains not only polluted water, but also undecayed solids from the polluted water that hardens that will be removed and burned. From the settling tank the polluted water is pumped through the pump house to the sprinkler beds. When it reaches the sprinkler beds, the polluted water is pumped to the rotating arms above the sprinkler beds which will be sprinkled to the sprinkler beds. The sprinkler beds is sealed with brick works so none of the water will get in or out of the sprinkler beds. When the water is sprinkled, it will go through the sprinkler beds which is filled with stones and micro-organisms that purifies the polluted water. Last, when the polluted water is purified it will proceed to the river.