The sources and the quality of raw water determine the type of treatments to be undertaken. For example, if the water is drawn from deep tube-wells, coagulation and filtration are not necessary. Only softening may be necessary where the water is hard, or aeration where the water contains excessive iron taste or odour. For surface […]
How to Treat Water for Public Supply?
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Treatment of Impure Water: 15 Processes
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Various processes for the treatment of impure water are given below. It is not essential that all these processes will have to be employed at all places, but it depends upon the quality of raw water. Process # 1. Removal of Dissolved Gases: It has been found that some of the gases if present in […]
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Examination of Water | Industrial Pollution
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In this article we will discuss about the physical, chemical and microbiological examination of water. Physical Examination of Water: (i) Colour: The colour is determined either by visual comparison of sample with known concentrations of coloured solution (by using Platinum Cobalt comparator) or by tintometric measurements. Platinum-Cobalt comparison method: Take 1.246 gm. of potassium chloroplatinate […]