| Introduction:
Water impurities
generally include minerals, viruses, bacteria and other
organic material. Sewer water from homes and industries
contain a large variety of such water impurities.
Currently, sewer water is going through some initial
treatment to remove some impurities and then it is
discharged in rivers and oceans.
If water impurities
are not harmful to the plants, part of such water can be
used for irrigation and watering gardens.
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