Increasing population, this will put pressure on the environment, threatening clean water sources and this suggests that the problem of human waste disposal requires more organized management. The evolution of wastewater treatment to modern wastewater treatment plants produces high quality effluents that can be released into the water safely.
Wastewater treatment methods can be classified into physical unit operations, chemical unit processes and biological unit processes.
- Physical Unit Operations
The physical unit operation is the treatment methods, which use the application of physical strength to treat sewage. This includes inspection, mixing, flocculation, deposition, filtration and flotation.
- Chemical Unit processes
Methods of removal or removal of contaminants by chemical additives or chemical reactions are known as chemical unit processes. This includes precipitation, adsorption and disinfection.
- Biological Unit processes
Biological unit processes explain the methods that remove pollutants by biological activity. The biodegradable organic material is converted into gases released into the air and the cell tissue removed by deposition.
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