Day in day out everything advances. We understand that among them is urbanization. That is alright. However, the other side of this our good friend is environmental pollution. This is mainly by the wastes emanating from the cities. You might have been scared by sight of wastes left in your environment not attended to. Sewage has lots of pollutants that can cause hazards to our health and if treated, can improve nature around us. We have to ensure that whatever is released into the environment is harmless. In summary, efficient waste water purification system should be developed to promote treatment of dirty water.
There are several steps in the process of treating those that is already contaminated. This is so that the contaminants are removed. Physical, biological and chemical approaches are utilized in all these steps.
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.
Lastly, is the fourth treatment stage. It is under trials and has already been incorporated in the systems of some purification plants. It involves removal of chemicals that decompose very slowly thus stays for very long time in the polluted water. This part should include the control of odor into the environment.
There are several steps in the process of treating those that is already contaminated. This is so that the contaminants are removed. Physical, biological and chemical approaches are utilized in all these steps.
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.
Lastly, is the fourth treatment stage. It is under trials and has already been incorporated in the systems of some purification plants. It involves removal of chemicals that decompose very slowly thus stays for very long time in the polluted water. This part should include the control of odor into the environment.
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