One of the main concerns in cities is

sewage water pollution

. Without being treated, this sewage water is drained off into the water bodies like rivers and ponds. This sewage disposal forms a chain of adverse effects like increase in Biological Oxygen demands (BOD) and Chemical Oxygen demand (COD). Also, this leads to spreading of water-borne diseases, eutrophication, etc. Read on to know more about the

harmful effects of sewage water pollution

.

The waste water that flows from industrial, domestic or other areas is called as sewage water. In a proper and efficient sewage management, this sewage water is piped or channeled out of the cities for treatment. The major bulk of the sewage consists of water, whereas the other components include chemicals and organic wastes.

Harmful Effects of Sewage Water Pollution

Sewage water pollution has many harmful effects. These include:

• Pathogens present in the sewage water can spread numerous diseases. Also, stagnant water promotes mosquito growth. This leads to malaria. Typhoid is another water-borne disease which spreads via contaminated water.
• Accumulation of chemical nutrients in the water bodies is known as eutrophication. This is another harmful effect of sewage water pollution. Eutrophication increases BOD, reduces the number of fish and overall degrades the water quality.
• Toxic wastes released into rivers are consumed by the aquatic organisms. This enters into the food chain which can badly affect the human health.
• Coral reefs are severely affected by the sewage water pollution all over the world. The growth of the corals is inhibited by the toxins contained in the polluted water.

Hence, it is important to treat the sewage water prior to its disposal into rivers. Also, it is imperative to effectively remove any harmful effluents from the sewage water. To minimize the adverse effects of sewage water pollution, an efficient waste water treatment should be implemented.