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. Explain the traditional way of purifying water to make it fit for drinking. |
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Answer» These techniques are simple and can treat water to a minimum extent wherein visible impurities can be removed. Thus they by no means can meet the set standards meant for consumption. The methods used by different communities in different countries are as follows: Winnowing Through cloth Clay vessels Clarification and filtration through plant material Jempeng stone filter method Horizontal flow coarse media filter Upflow gravel filter Two-stage filter Upflow/downflow filter |
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