Improving Quality Of Wastewater Through Treatment Processes

Wastewater treatment is carried out for improving the quality of wastewater. It helps achieve the standards and expectations that have been set for the waste matter quality. Such treatments are designed towards achieving improvement not only in the quality of the wastewater, but also in protecting the environment.Why improving the quality of wastewater is importantThrough various treatment processes, the suspended solids are removed. Removing these solids is necessary as these can clog down channels and rivers.These treatments also ensure the removal of biodegradable organics. It is worth mentioning that these organics serve as a food for microorganisms. These organics are combined with oxygen extracted from water by these microorganisms. This allows them not only to thrive, but also to multiply. The matter of concern is that this oxygen is also required by the fish in the water to survive. The organic pollution being caused as a result will lead to the formation of dead zones. It would not be possible for fish to survive in this environment. This results in fish skills when organic loads are released into water. Hence, it becomes essential to treat wastewater.There are many pathogenic bacteria and other organisms present in the wastewater which cause diseases. They come out to be of great influence at places where the receiving water is employed for drinking purposes. They also thrive in place where people may come in close contact with the water. Thus, they may cause diseases among the human population. Due to this reason, it becomes extremely important to treat wastewater. Otherwise many diseases will be borne.


The different forms of treatmentMechanical treatmentThis form of treatment removes the suspended particles and other floating solids from the raw sewerage. It involves a screening process whereby solid objects are trapped. This is a very useful treatment as 50 to 60 percent of the suspended solids are removed through this treatment. Also, up to 30 percent of the biodegradable organics are removed from the waste water.Biological treatmentThis is the next phase of treatment that helps remove the dissolved organic matter. This is basically the matter that has escaped the mechanical treatment. The food in this wastewater is consumed by microbes. Microbes use this food to convert it to water, energy and carbon dioxide for their own use. After this biological process, the water is made to go through settling tanks to further remove the suspended solids. This treatment enables the removal of around 85 percent of the suspended solids and biodegradable organics.Tertiary treatmentThis form of treatment helps remove almost all the impurities. Usually the percentage of the impurities removed stands at 99 percent. The effluent produced has a quality that is almost up to the quality of drinking water.