Tag: wastewater story

With development and advancement, industries, factories and other establishments have become necessary reality, the pollution can be mitigated by adopting measures as to the treatment of waste at generating source before it is exposed in the environment, reducing the generation of waste material and recycling the waste over and again wherever possible. Preventing the discharge that contaminates the fresh drinking water source.

World Water Day is an annual United Nations observance day held on March 22nd to highlight the importance of freshwater.

Pollution renders existing water unusable, population growth increases demand, and industrial development consumes large quantities of water, all contributing to scarcity.

The nutrients present in domestic sewage added in a lake will cause the dense growth of microbes, The microbes use oxygen and may deoxygenate the water which may lead to the death of the fish.

Biochemical oxygen demand is the measure of oxygen required by aerobic decomposers for biochemical degradation of the organic materials. BOD indicates the degree of organic pollutants present in water.

The sources of phosphate pollution are sewage treatment plants, phosphate fertilisers used in agricultural fields, etc.

Water hyacinth (Eichhornia crassipes) also called as "terror of Bengal" is the plant that sometimes chokes ponds, lakes, and rivers resulting in an imbalance of ecosystem dynamics of water bodies. It is the world's most problematic aquatic weed. It accelerates eutrophication.

Sewage is a water-carried waste, in solution or suspension, that is intended to be removed from a community. Also known as domestic or municipal wastewater, it is more than 99% water and is characterized by volume or rate of flow, physical condition, chemical and toxic constituents and its bacteriologic status (which organisms it contains and in what quantities). It consists mostly of grey water (from sinks, tubs, showers, dishwashers, and clothes washers), black water (the water used to flush toilets, combined with the human waste that it flushes away); soaps and detergents; and toilet paper (less so in regions where bidets are widely used instead of paper). Whether it also contains surface runoff depends on the design of sewer system.

Organic matter in sewage consists of biological materials like food waste and human waste, which can be broken down by microorganisms, making it biodegradable.

Point sources of pollution are identifiable, localized sources such as pipes or specific treatment plant outlets. In contrast, diffused or non-point sources are spread out over a large area.