Wastewater, environmental problems near us. And often found in a community. Or an industrial state of treatment means is located. The state water with dissolved oxygen levels in the water, the proportion of bacteria. Sometimes be contaminated, the smelly black garbage floating consumer can not be used. The causes of water caused by the release of waste industrial wastewater from household or from farming. Through the system, wastewater treatment plant into bile before release into water, water in the water source.
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