INDUSTRIAL WASTE WATER : It's Contamination and Treatment.
Industrial waste water is invariably contaminated, the nature of contaminants depending upon industries from which the waste water is obtained.
Waste water can be obtained from many aspects. Here, some of them are given -
Waste water from food processing industry-
- Industries such as beat sugar refining, brewing, distilling and canning, etc., yield waste water which contains high content of decomposable organic matter.
- Dairy industry produces organic waste
- Waste from meat processing industry are associated with blood, fats, proteins etc.
Waste water from petroleum industry-
Waste water from oil drilling includes drilling muds, brine pumed out of the well along with crude oil and some oil as well. Oil refineries and petrochemical plants yield a large number of contaminants which generate undesirable odours and tastes and many of them causes fish flesh to acquire adverse taste.
Waste water from chemical industries-
The waste water from the chemical industries is very heavily contaminated and very toxic. Chemical plants manufacturing acids, bases, pesticides, synthetic fibre, detergents and many other compounds produces waste which are highly toxic.
Treatment of industrial waste water-
If industrial waste water is discharged into lakes, rivers or oceans as such, it would cause severe pollution. The waste water thus has to be treated properly before it can be disposed off. Most of the water treatment methods used by industries are in general the same as used for the treatment of municipal waste water. However, some specific treatments have been used with advantage in specific cases.
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written by - @iambijoy.
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