The function of hospital's wastewater treatment system to interact with.• Receive wastewater from all of the hospital's buildings, all coming through the filter.• Fill the air by using a water wheel hit the water so that the water is exposed to the weather, because microorganisms in aquatic life needs oxygen and microorganisms to degrade organic substances that aid in the water. This procedure will take approximately 2 hours.• The water is staying, settling in settling pond with pond water will stay in the pond bottom, Plai Laem. When the sediments below the water to fall on the top, it will go in the other system. Also in this section is by cleaning fish, to see if the water is clean enough to have living creatures or not.• Additives chlorine into the pond more chlorine, which is the last step to be disinfected and water when it is clear that brought water to the next like a car wash. Watering the trees, etc., under a project named "two hands" or leave to a natural Canal. • A portion of the sludge to dry and crops or further utilization.
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