Improvement Strategy for reducing environmental impact of a wastewater treatment plant

Abstract

A wastewater treatment plant (WWTP) must be able to operate satisfactorily during critical situations, service shutdowns and power outages. That makes the management of the wastewater plant difficult because of disturbances that can be produce and which are difficult to characterize and predict. The slightest failure is harmful in an environment where performance is paramount. It is therefore necessary to ensure permanently the proper functioning of the wastewater treatment plant toward the objectives assigned to it. To answer this question, a Design Failure Modes and Effect Analysis (DFMEA), based on the daily physico-chemical parameters of pollution, has been developed for the WWTP of Ain Temouchent (treatment capacity of 10,920 m3/day) and crucial problems which penalize its operation and limit its reliability has been identified. Preventive and corrective actions are proposed