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.
Dirty water contains pollutants which require various steps to remove the contaminants. For example, chemicals can be applied in addition to use of biological organisms to feed on the pollutants. Besides, physical approach of waste removal can be utilized.
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.
The next one is called primary treatment. Here, it involves sedimentation and floatation. I mean, the light objects float and are collected and those that are heavy, settle at the bottom. This usually happens in the primary sedimentation tanks. Primary clarifiers can also be used. The grease and oil harvested is used to make soap.
Secondary treatment involves removal of biological pollutants. These are wastes from the living things. Be it plants or animals, human beings included. It could be a challenge because they are in dissolved state. Some appear to form a suspension. Living organisms such as bacteria are cultured then introduced to the fluid to feed on the biological contaminants. This facilitates their decomposition and fails to persist in water. This approach is economical on space.
Furthermore, is the tertiary treatment stage. Its main aim is to make the output very clean. It can be followed by other steps or may be the end. It depends on the type of system. Micro filtration is done so that the effluent is clean and of better quality. This is done before releasing it into the environment. Toxins, phosphorus and gases such as nitrogen are removed.
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.
Dirty water contains pollutants which require various steps to remove the contaminants. For example, chemicals can be applied in addition to use of biological organisms to feed on the pollutants. Besides, physical approach of waste removal can be utilized.
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.
The next one is called primary treatment. Here, it involves sedimentation and floatation. I mean, the light objects float and are collected and those that are heavy, settle at the bottom. This usually happens in the primary sedimentation tanks. Primary clarifiers can also be used. The grease and oil harvested is used to make soap.
Secondary treatment involves removal of biological pollutants. These are wastes from the living things. Be it plants or animals, human beings included. It could be a challenge because they are in dissolved state. Some appear to form a suspension. Living organisms such as bacteria are cultured then introduced to the fluid to feed on the biological contaminants. This facilitates their decomposition and fails to persist in water. This approach is economical on space.
Furthermore, is the tertiary treatment stage. Its main aim is to make the output very clean. It can be followed by other steps or may be the end. It depends on the type of system. Micro filtration is done so that the effluent is clean and of better quality. This is done before releasing it into the environment. Toxins, phosphorus and gases such as nitrogen are removed.
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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