Water pollution is a major cause of water problems with impurities in the water, both in solid form and in the form solution. The impurities will look differently according to the source of pollution.
Effluent from the homes and communities. Especially in the densely populated communities, such as the metropolitan municipality of each province. By every household to release water into the conduit, and the public. They will flow into the water and natural water. In general, the characteristics of the effluent from buildings and the community will be able to digest by biological method.
By the ways of solution are as follows.
1. Emission control of waste water into the river.
2. Maintain the river clean.