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Sewage Treatment

Sewage treatment is the process of removing contaminants from wastewater to produce safe effluent for discharge or reuse, involving primary, secondary, and sometimes tertiary stages. The main goal is to prevent water pollution and protect public health by eliminating harmful substances. Key treatment types include septic tanks for decentralized systems and wastewater treatment plants for centralized processing.

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5 views1 page

Sewage Treatment

Sewage treatment is the process of removing contaminants from wastewater to produce safe effluent for discharge or reuse, involving primary, secondary, and sometimes tertiary stages. The main goal is to prevent water pollution and protect public health by eliminating harmful substances. Key treatment types include septic tanks for decentralized systems and wastewater treatment plants for centralized processing.

Uploaded by

jose
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Sewage treatment

Sewage treatment is the process of removing contaminants from wastewater, primarily from
household sewage, to produce an effluent that can be safely discharged back into the
environment or reused. This process typically involves several stages, including primary,
secondary, and sometimes tertiary treatment, to remove solids, organic matter, and other
pollutants.

Key aspects of sewage treatment:

Purpose:

The main goal is to prevent water pollution and protect public health by removing harmful
substances from wastewater before it enters natural water bodies.

Stages:

Primary Treatment: This stage focuses on removing larger solids and debris through
sedimentation and screening.

Secondary Treatment: This stage uses biological processes, such as bacterial decomposition, to
break down organic matter and reduce pollutants.

Tertiary Treatment: This optional stage may involve further filtration, disinfection, or nutrient
removal to achieve a higher level of purity for specific reuse applications.

Types of Treatment:

Septic Tanks: Decentralized systems used in areas without a centralized sewer network, where
wastewater is treated through a series of tanks and natural filtration in the soil.

Wastewater Treatment Plants: Centralized facilities that treat wastewater from a network of
sewers, employing a multi-stage process to remove pollutants and contaminants.

Importance:

Sewage treatment is essential for protecting public health, preserving water resources, and
maintaining a healthy environment by preventing pollution of rivers, lakes, and oceans.

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