As we advance in the promotion of our lives, we promote urbanization. It is a good thing because we feel good staying in cities and developed urban areas. On the other hand, the environmental hazards that result due to urbanization are so many. This is because the sewage from the cities are not properly managed and taken care of. It scares you I suppose, when you view a sewage being directed into a river before it is treated. This is harmful to our health and therefore needs to be treated for our well being. In a nutshell, an effective waste water purification system should be put in place.
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.
The initial stage is the pretreatment stage. This involves removal of any pollutant that can possibly be removed. Usually they are the large objects which can be collected through sieving. This can be comfortably be achieved by use of mesh or screens that act as barriers along pathway of flowing polluted water. The removed large objects are then taken to the incinerator for complete destruction. In case they are not removed, they will get into the pipes and cause blockage. Not only is sand, broken glass or stones collected at this point but also fat and grease. Besides, the flow is equalized so that it does not collapse the whole 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.
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.
Fourthly, is tertiary treatment. This step can be considered as the last one in most of the systems. However, other systems have an additional step. The effluent is made better and quality is improved before being released into the surrounding locality. Filtration of very fine particles occurs to remove toxins thus the resulting liquid is clean. Besides, nitrogen and phosphorus are removed.
At the distal part of this phase, the liquid ater is collected into lagoons or ponds and biological cleaners are introduced to clean the liquid. The microorganisms feed on decaying matter in the dirty liquid and it becomes clean. Agricultural, sports or transport sectors benefit a lot from the resulting liquid for irrigation of farms and the playgrounds not forgetting dusty roads. Such reservoirs that exist underground can be refilled using this water.
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.
The initial stage is the pretreatment stage. This involves removal of any pollutant that can possibly be removed. Usually they are the large objects which can be collected through sieving. This can be comfortably be achieved by use of mesh or screens that act as barriers along pathway of flowing polluted water. The removed large objects are then taken to the incinerator for complete destruction. In case they are not removed, they will get into the pipes and cause blockage. Not only is sand, broken glass or stones collected at this point but also fat and grease. Besides, the flow is equalized so that it does not collapse the whole 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.
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.
Fourthly, is tertiary treatment. This step can be considered as the last one in most of the systems. However, other systems have an additional step. The effluent is made better and quality is improved before being released into the surrounding locality. Filtration of very fine particles occurs to remove toxins thus the resulting liquid is clean. Besides, nitrogen and phosphorus are removed.
At the distal part of this phase, the liquid ater is collected into lagoons or ponds and biological cleaners are introduced to clean the liquid. The microorganisms feed on decaying matter in the dirty liquid and it becomes clean. Agricultural, sports or transport sectors benefit a lot from the resulting liquid for irrigation of farms and the playgrounds not forgetting dusty roads. Such reservoirs that exist underground can be refilled using this water.
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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This is beautiful! Your blog is so inspiring! I am a new follower and I am so glad I found it. People like you reinforce my belief that there is still so much good in this world.
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