27 Facts About Sewage treatment

Sewage treatment is a type of wastewater treatment which aims to remove contaminants from sewage to produce an effluent that is suitable for discharge to the surrounding environment or an intended reuse application, thereby preventing water pollution from raw sewage discharges.

Sewage treatment contains wastewater from households and businesses and possibly pre-treated industrial wastewater.

Sewage treatment often involves two main stages, called primary and secondary treatment, while advanced treatment incorporates a tertiary treatment stage with polishing processes and nutrient removal.

Secondary treatment can reduce organic matter from sewage, ? using aerobic or anaerobic biological processes.

Large number of sewage treatment technologies have been developed, mostly using biological treatment processes.

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However, sewage treatment rates are highly unequal for different countries around the world.

The term "sewage treatment plant" is often used interchangeably with the term "wastewater treatment plant".

Some types of sewage treatment produce sewage sludge which can be treated before safe disposal or reuse.

Large number of sewage treatment technologies have been developed, mostly using biological treatment processes .

Many of these systems are based on natural Sewage treatment processes, requiring large areas, while others are more compact.

Odors emitted by sewage treatment are typically an indication of an anaerobic or "septic" condition.

Sewage treatment often involves two main stages, called primary and secondary treatment, while advanced treatment incorporates a tertiary treatment stage with polishing processes.

Preliminary treatment removes coarse materials that can be easily collected from the raw sewage before they damage or clog the pumps and sewage lines of primary treatment clarifiers.

Primary treatment is the "removal of a portion of the suspended solids and organic matter from the sewage".

Main processes involved in secondary sewage treatment are designed to remove as much of the solid material as possible.

Secondary treatment can reduce organic matter from sewage, ? using aerobic or anaerobic processes.

The purpose of tertiary Sewage treatment is to provide a final Sewage treatment stage to further improve the effluent quality before it is discharged to the receiving water body or reused.

Tertiary Sewage treatment is sometimes defined as anything more than primary and secondary Sewage treatment in order to allow discharge into a highly sensitive or fragile ecosystem such as estuaries, low-flow rivers or coral reefs.

Ozone sewage treatment requires the use of an ozone generator, which decontaminates the water as ozone bubbles percolate through the tank.

Range of Sewage treatment processes are available to remove nitrogen and phosphorus.

Sewage sludge treatment describes the processes used to manage and dispose of sewage sludge produced during sewage treatment.

Sludge Sewage treatment is focused on reducing sludge weight and volume to reduce transportation and disposal costs, and on reducing potential health risks of disposal options.

The choice of a sludge Sewage treatment method depends on the volume of sludge generated, and comparison of Sewage treatment costs required for available disposal options.

However, sewage treatment rates are highly unequal for different countries around the world.

Land treatment was steadily becoming less feasible, as cities grew and the volume of sewage produced could no longer be absorbed by the farmland on the outskirts.

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In most countries, sewage collection and treatment are subject to local and national regulations and standards.

In Libya, municipal wastewater Sewage treatment is managed by the general company for water and wastewater in Libya, which falls within the competence of the Housing and Utilities Government Ministry.