Water mixed with waste matter is known as waste water.
- Sewage is the wastewater carried away in sewers or drains.
- It is released from homes, industries, offices, hospitals, etc.
- It is a mixture of various contaminants, which include the following:
- Suspended solids
- Organic impurities such as animal waste, urine or human faeces, pesticides, kitchen waste, etc.
- Inorganic impurities such as chemicals (nitrates, phosphates, etc.)
- Nutrients such as …
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