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Mary Dehn

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How To Start A Sewage Water Treatment System

The amount of effluent that is released as effluent from the sewerage systems of major cities is massive. This effluent has to be released from the system to different water reservoirs but only after it has been properly treated. Without treatment, this effluent has a potential to cause disease and destroy our the environment. There are four main stages involved in sewage water treatment system. They are classified into screening stage, primary, secondary and tertiary.

During screening, large inorganic particles are removed from the water. They include pieces of glass, bottles, bricks and rags. If not removed, these objects have the potential to damage the equipment that is used in the process. Other materials are removed because of their unsightly nature and are not required in the final effluent. After screening, the water is released to the primary stage.

During the primary stage, the main process that takes place is filtration. Organic particles are removed by using fine screens. The smaller particles which include sand and grit are removed next. This is facilitated by aerating the effluent after which sedimentation takes place here to form sludge. The effluent is released into the next tank to undergo secondary treatment.

Two types of bacterial organisms are involved in the secondary stage. These organisms which coexist in the digesters are classified as either anoxic or aerobic. The former prefer an environment with oxygen and the latter prefer environments without oxygen. Breakdown of organic material leads to formation of more sludge. In the end, clear water is left above the sludge. The treated effluent is then taken through the tertiary stage.

The tertiary stage is the stage of disinfection. The disinfection is facilitated by the use of UV radiation and ozone gas. This process also helps with the reduction of ammonia which usually in very high levels in the effluent. Other pollutants that may still be present in the effluent such as foam, oil and grease are removed at this stage. The effluent is then released to rivers or any other water reservoir.

The sludge left behind also has to be treated before being disposed of or put to other uses. Treated sludge is commonly used to manufacture low cost but effective fertiliser for crops. It has also been used in some instances in the production of energy. When decomposed in the presence of anaerobic organisms, the sludge produces affordable heat and light energy. It can alternatively, be converted into biomethane that can be sold to the national gas grid.

One of the biggest challenges faced by treatment plants is the presence of odour. This odour may be retained even by the final effluent. Steps should be taken to ensure that odour is minimised at all the storage tanks. Covering all the sources of odour and capturing and treating smoke using chemical scrubbers helps to neutralise this unpleasant smell.

The act of treating water is central to the process of recycling. It helps in protecting our environment as well providing a cheap source of fertiliser and energy for households and communities. It is important that this process is kept in check by arranging for regular inspection of the plant by public health experts. Those that comply with the set standards should be awarded licences.

Look for the best waste water purification system by going to the related web page. Customers should visit this useful website at their earliest convenience.

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