Judul : Important Aspects Of Sewage Water Treatment System
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Important Aspects Of Sewage Water Treatment System
Sewage water is drawn from residences and commercial buildings. The sources of domestic wastewater include the toilet, laundry, dishwashers, plumbing fixtures, and so on. In the commercial setting the water comes from a wide range or sources including manufacturing plants, restaurants, hospitals, and so on. In a sewage water treatment system, water (comprising about 90% of the effluent) is separated from the solid waste before being reused or disposed of.
For every region, state or country there are a number of guidelines that govern the setting up and maintenance of the treatment plant. You need to be in touch with the local authorities so as to know what exactly applies for your area. Most on-site plants that are installed comprise a two-stage process. Those that serve cities and townships are usually more advanced and incorporate four levels of treatment.
The first stage is known as primary treatment. In this stage, large objects such as rags, wood and plastic are removed using fine screens. The sewage is then aerated to remove the finer articles (mainly grit and sand). The resultant effluent is allowed to undergo sedimentation which allows any residual objects to settle at the bottom of the tank. The solid layer formed is known as sludge.
In the secondary stage, the main task is the removal of organic waste. This process is carried out in a number of large tanks known as digesters. Aerobic and anaerobic bacteria combine to greatly reduce the amount of organic waste in the effluent. The amount of nutrients is also reduced and by extension, the number of pathological organisms. Sedimentation is repeated to yield more sludge before the effluent is released to a large holding pond.
The tertiary stage is the final stage. A number of processes take place here. Biological filters are used to optimize on the other stages. The filters biodegrade any organic matter left from the other stages and also reduce the levels of foam, ammonia, oil and grease. Disinfection is done using chlorine, ozone and UV radiation. The color clears and odor is eliminated after all these process.
There are a number of differences in treatment systems but overall the results are more or less the same. One of the fundamental differences that exist is the use of enzymes rather than microorganisms in some of the systems. In the enzyme system of filtration, a blend of enzymes are added to the wastewater at the secondary and tertiary stages to help breakdown the organic matter.
The enzyme based system appears to be falling out of favor due to a number of disadvantages that have been realized. One of the major disadvantages is the fact that it is not practically possible to produce all the enzymes required to biodegrade all the organic matter in the effluent. This makes the system less efficient. Additionally, it is a more expensive undertaking. When microorganisms are used they can synthesize each of the required enzymes.
If you are planning to have a wastewater treatment system, there are two options to consider; setting up your own or getting a connection to the regional sewerage pipeline. The former is often quite tasking especially if one is planning on the advanced (four-stage) system. A simpler (two-stage) system works for most people. The important thing is to be aware of the installation guidelines that exist.
For every region, state or country there are a number of guidelines that govern the setting up and maintenance of the treatment plant. You need to be in touch with the local authorities so as to know what exactly applies for your area. Most on-site plants that are installed comprise a two-stage process. Those that serve cities and townships are usually more advanced and incorporate four levels of treatment.
The first stage is known as primary treatment. In this stage, large objects such as rags, wood and plastic are removed using fine screens. The sewage is then aerated to remove the finer articles (mainly grit and sand). The resultant effluent is allowed to undergo sedimentation which allows any residual objects to settle at the bottom of the tank. The solid layer formed is known as sludge.
In the secondary stage, the main task is the removal of organic waste. This process is carried out in a number of large tanks known as digesters. Aerobic and anaerobic bacteria combine to greatly reduce the amount of organic waste in the effluent. The amount of nutrients is also reduced and by extension, the number of pathological organisms. Sedimentation is repeated to yield more sludge before the effluent is released to a large holding pond.
The tertiary stage is the final stage. A number of processes take place here. Biological filters are used to optimize on the other stages. The filters biodegrade any organic matter left from the other stages and also reduce the levels of foam, ammonia, oil and grease. Disinfection is done using chlorine, ozone and UV radiation. The color clears and odor is eliminated after all these process.
There are a number of differences in treatment systems but overall the results are more or less the same. One of the fundamental differences that exist is the use of enzymes rather than microorganisms in some of the systems. In the enzyme system of filtration, a blend of enzymes are added to the wastewater at the secondary and tertiary stages to help breakdown the organic matter.
The enzyme based system appears to be falling out of favor due to a number of disadvantages that have been realized. One of the major disadvantages is the fact that it is not practically possible to produce all the enzymes required to biodegrade all the organic matter in the effluent. This makes the system less efficient. Additionally, it is a more expensive undertaking. When microorganisms are used they can synthesize each of the required enzymes.
If you are planning to have a wastewater treatment system, there are two options to consider; setting up your own or getting a connection to the regional sewerage pipeline. The former is often quite tasking especially if one is planning on the advanced (four-stage) system. A simpler (two-stage) system works for most people. The important thing is to be aware of the installation guidelines that exist.
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