Optimization of WWTP of Dairy Industry

Abstract

Moroccan industry, like most industries around the world, today faces a water scarcity. Water is one of the basic utilities for all kinds of production, especially in the agro-food sector. Morocco, a country of bioclimatic and ecological transition with fragile resources, is threatened with rapid degradation in the event of overexploitation of underground water reserves. Indeed, the evolution of the water supply over the last decade already testifies to the irregularity of the outlook and confirms climate failure. “From 1990 to 2000, the resources in m3 per inhabitant per year fell from 1200 to 950. In 2020 the water resources are only around 600m3 / inhabitant / year, at a time when the demand for water total has reached the ceiling of 20 to 21km3 of water that can be mobilized. The country will drop to the shortage threshold for 500m3 / inhabitant / year around the year 2030".In fact, Morocco has launched programs to save water and review some resource allocations in order to meet growing needs. One of these programs is the launch of 10-95 law. It about the regulation of water discharges by establishing a financing instrument based on “the polluter pays” principle. This law has forced several industries, to install wastewater treatment plants (WWTP) for their water discharges to the extent that they meet the standards defined by Law 10-95. On this work, we will present an analysis of the operation of a wastewater treatment plant in a Moroccan dairy, the issues that have arisen and the solutions that have been provided. The analysis of the influential of the WWTP during the different phases of treatment gave results, which allowed us to optimize the performance of each phase and reduce the cost of running the WWTP.