Wastewater aquaculture as a form of environmental pollution control in Nigerian cities

Abstract

In most cities in Nigeria, Industrial and Domestic effluents are discharged indiscriminately into the environment.  In city slums, the usual practice is for people to live side by side with the waste they produce (both liquid and soilid waste) thereby leaving them at the mercy of diseases.  In highbrow areas of cities, wastes may be properly drained but channeled into streams, rivers and lakes with the resultant damage to aquatic flora and fauna.  Industrial effluents are usually of channeled into water bodies and the cost in terms of fish kills is enormous.  The problem is exacerbated by the inaction of government agencies concerned with environmental pollution.  This study presents wastewater-fish farming as a possible method of pollution control in Nigerian cities.  It reviews previous work done in this area and looks into the possibility of applying them in Nigeria and assesses the profitability of such systems.