Sewage. Sewage is a liquid waste which has lot of dissolved and suspended pollutants in water. It is complex in nature.
It is produced in homes, industries, agricultural fields and in other human activities. It is main cause of water and soil pollution.
Harmful aspects of disposal of untreated water waste:
1. It causes health hazards.
2. Ground water and surface water gets polluted.
3. It is carrier of water borne diseases.
