To outline: The three phases of wastewater treatment. Concept introduction: The wastewater treatment processes are mainly divided into three stages: the primary phase, a secondary phase, and a tertiary phase. The wastewater is treated to ensure the safe drinking of water and to eliminate the harmful pathogens. The sewage that is piped to wastewater treatment is subjected to physical, biological, and sometimes chemical processes.

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Chapter 22.4, Problem 7AYP

Summary Introduction

To outline:

The three phases of wastewater treatment.

Concept introduction:

The wastewater treatment processes are mainly divided into three stages: the primary phase, a secondary phase, and a tertiary phase. The wastewater is treated to ensure the safe drinking of water and to eliminate the harmful pathogens. The sewage that is piped to wastewater treatment is subjected to physical, biological, and sometimes chemical processes.

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