Treatment of Urban Wastewater

Abstract

The evolution of raw wastewater to a purified effluent occurs through various stages or streams that constitute successive purifications. These successive stages of physical, chemical or biological characteristics are combined in order to first eliminate or reduce suspended matter, then colloidal materials and finally dissolved elements, whether mineral or organic. These treatments are distinguished according to the degree of purification sought and the technical means employed; the classification includes: a. Preliminary treatments b. Primary treatments c. Secondary treatments d. Complementary treatments, sometimes referred to as tertiary or advanced treatments The purpose of these purification processes is to obtain a satisfactory effluent for which pollution is limited to such a degree that the discharge does not create any nuisance to the flora or fauna of the receiving environment.

Keywords

Identifiers

DOI

10.53902/gsres.2024.04.000533

Journal

Global Scientific Research in Environmental Science

Year

2024