Pollution Research Paper


Vol. 35, Issue 2, 2016

Page Number: 229-234

URBAN WASTEWATER PHOSPHORUS REMOVAL: MIXED TREATMENT

N. NEDJAH, A. MIZI, D. DAAS, N. LASKRI AND M. BACCOUCHE

Abstract

The conventional biological treatments of urban wastewater remove only 30- 50% of the phosphate pollution load. Such result remains unsatisfactory and a better phosphorus removal efficiency (70% to 80%) that meets the standards of discharge can be achieved via a combination mode, physicochemical and biological. The aim of this study is to examine the efficiency of this treatment by the elimination of the elements characteristics of pollution Biochemical oxygen demand, Turbidity, Phosphorus and Nitrogen (DCO, TUR, P and N) and consequently preserve the environment and the aquatic milieu. The sampling sites chosen are urban wastewater purification station via natural lagoon in the City of Adrar/ south of Algeria, and the treatment plant of domestic wastewater via activated sludge in the city of El Taref/ East of Algeria.