◆ Domestic Wastewater Treatment
Domestic wastewater contains inorganic and
organic impurities. In addition to such matter, it contains microorganisms liable to decompose organic matter and cause putrid fermentation. The purpose or domestic wastewater treatment is to obtain a purified effluent within the range of pollution limit. Domestic wastewater treatment may involve
the following, either separately or combinatively :
 Physical treatment
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Physicochemical treatment |
Biological treatment |
sludge treatment, dewatering and drying |
◆ Industrial Wastewater Treatment
Industrial wastewater treatment plant satisfies disposal standards concerning not only BOD, COD and suspended solids contents but also a number of inorganic compounds. The choice of a treatment system will be base on :
A knowledge of the various pollutants |
Character of the effluents |
Laboratory testing for properly treatment system by various process |
Choice of compatible purification techniques derived from the physicochemical and/or biological |
possibilities available. |
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