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With the daily ever growing urbanization, you will agree with me that the impact on the environment is very adverse due to sewage disposal. Sewage can be from the households or the industries in towns. You will not be comfortable to observe dirty water released into you area of locality if it has not been properly treated or purified. Those that contains pollutants needs to be treated so that its quality can be improved. This means that its negative impact on the environment is so much reduced. By so doing we will be promoting biodiversity and preventing health hazards. To be precise, we ought to have a waste water purification system that is very efficient.
In the procedure of purifying the already polluted water, various steps are employed. They utilize chemical agents, living organisms and physical agents to remove the harmful agents already present in water.
To begin with is the pretreatment stage. It prepares it to be treated. Sieving is used to remove all big objects that can be gotten rid of. Large screens bar these items. Mesh can also be used alongside other barriers. These large objects are a threat to the system because pipes can get blocked. Then the end result will be the malfunctioning of the system.
Secondly, is the primary treatment stage. It takes place in the sedimentation tanks and the clarifiers all that are of primary nature. Settling down of solids occurs especially with heavy objects. The light objects float and are cleared off. These include oil which is a raw material for the process of saponification.
Thirdly, we get to discuss secondary treatment. This step removes the biological pollutants. They could be in suspension form or even dissolved. A habitat for small living organisms, waterborne, is established then these organisms feed on the biological matter. Thereafter the organisms are removed before advancing to the next stage of treatment. This is advantageous in that it consumes very little space.
Tertiary stage of treatment aims at improving the quality of the outcome. The liquid is made to be clean. This is through microfiltration depending on the system type. Before the effluent is let into the locality, harmful gases are removed. Toxins are not left to remain in water at this stage.
Towards the end of tertiary stage, it is taken into a large storing body usually which is man made like a dam. Microorganisms are used to remove contaminants from the water. After this process it can be of help in irrigation for agricultural purposes of even refilling the underground reserves.
Finally, is fourth treatment stage. Due to continuing research and findings, it has been merged into various systems. It is beneficial because it takes care of contaminants that may persist for very long years. This is because these types of contaminants decompose very slowly. You will not like the smell that comes from this process of treating water thus at this stage, odor control is done.
In the procedure of purifying the already polluted water, various steps are employed. They utilize chemical agents, living organisms and physical agents to remove the harmful agents already present in water.
To begin with is the pretreatment stage. It prepares it to be treated. Sieving is used to remove all big objects that can be gotten rid of. Large screens bar these items. Mesh can also be used alongside other barriers. These large objects are a threat to the system because pipes can get blocked. Then the end result will be the malfunctioning of the system.
Secondly, is the primary treatment stage. It takes place in the sedimentation tanks and the clarifiers all that are of primary nature. Settling down of solids occurs especially with heavy objects. The light objects float and are cleared off. These include oil which is a raw material for the process of saponification.
Thirdly, we get to discuss secondary treatment. This step removes the biological pollutants. They could be in suspension form or even dissolved. A habitat for small living organisms, waterborne, is established then these organisms feed on the biological matter. Thereafter the organisms are removed before advancing to the next stage of treatment. This is advantageous in that it consumes very little space.
Tertiary stage of treatment aims at improving the quality of the outcome. The liquid is made to be clean. This is through microfiltration depending on the system type. Before the effluent is let into the locality, harmful gases are removed. Toxins are not left to remain in water at this stage.
Towards the end of tertiary stage, it is taken into a large storing body usually which is man made like a dam. Microorganisms are used to remove contaminants from the water. After this process it can be of help in irrigation for agricultural purposes of even refilling the underground reserves.
Finally, is fourth treatment stage. Due to continuing research and findings, it has been merged into various systems. It is beneficial because it takes care of contaminants that may persist for very long years. This is because these types of contaminants decompose very slowly. You will not like the smell that comes from this process of treating water thus at this stage, odor control is done.
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