Saturday, March 26, 2016

By Stephen Gibson


In our modern society, recycling waste water is important. Hence, many countries are using the waste water purification system. This is the process whereby contaminants from water that is used and wasted is collected and processed in the name of recycling. There are many ways to go about it which includes using chemicals, doing it physically and doing it organically.

It can be treated close to where the sewage is created which is known as decentralized or an onsite system. It put in septic tanks, aerobic treatment system or in bio filters. Another alternative and the most used process is collection and transportation of network pipes and pumps stations to a municipal treatment plant popularly known as a centralized system.

Sewage water is generated from institutions, housing places, manufacturing and money-making establishments. As of homes, its generated by toilets, bathroom, kitchen, shower and sink water. Waste includes industry and commerce waste. In urbanized states, the separation and drainage of sewage water to black and grey water is very common but later its used for farming or flush toilets.

It include run off of rain water. Sewerage systems are able to handle the water as a system is in place known as a combined sewer system. While rain water is going through roofs and on grounds, it does carry contaminants that include soil, organic matter, heavy metals, lubricants and animal waste. Rain water receives pretreatment before being let to water ways. Treatments include preservation basins, swampland, covered vaults and elimination of coarse solids.

Industrial effluent receives pre-treatment at the factories themselves to reduce the pollutant load before being allowed to the sewer. This process is called industrial waste treatment. The reason for carrying out the process is because industrial waste may contain pollutants that cannot be removed by conventional sewage treatment. Flow of industrial waste may upset the population in cases of biological treatment.

Main purpose of treating this is production of an effluent doing less harm when allowed to the environment preventing pollution. Three stages take place for water to be fully treated; the primary treatment, the secondary treatment and finally we have tertiary treatment; these are just the basic, there is a lot that goes in, in making sure their water is treated.

Primary treatment consists of temporarily holding the sewage at a particular location where the heavy solids settle at the bottom while lighter solids float. The floating materials are removed and the liquid may be discharged or subjected to secondary treatment.

Secondary treatment involves removing is whereby suspended bio matter that is dissolved. As a means to manage the habitat, there is control in treating it; there is tertiary treatment where it involves chemical disinfection of water before leaving the controlled habitat as ir flows to other streams.

Pollution of the environment caused by sewage water has gone down over the years crediting it all to the water purification system. Reduction of water wastage has been low as it reduces being used on useful ways such irrigation. All states should come up with ways of recycling this water to reduce environment pollution.




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