Determination of Volume of Effluent From Ogburugbu Area of Abakpa and the Conversion of the Effluent into Sludge

Research areas: Year: 2014
Type of Publication: Article Keywords: Effluent, Sludge, Dewatering, Biodegradation, Agricultural Production
  • Chijioke, Akwu E.O.
Journal: Journal of Environmental Sciences And Policy Evaluation Volume: 4
Number: 2 Pages: 25 - 40
Month: December
Sludge production from both domestic and industrial effluent is one of the key sources of soil enrichment for agricultural purposes. This paper presents the determination of volume of effluent from the population of Ogburugbu area (an integral part of Abakpa Nike neighbourhood) and the conversion of the effluent into sludge. The study area covers a land area of about 136,224m2. Ogburugbu is located on the valley in relation to other parts of Abakpa neighbourhood and all its drainage system naturally slopes downwards to Ava Pond (about 18m away from river Ava). The estimated population of the residents got by direct observations and interviews is about 6,920 people. Gleick (1996) estimated that the recommended basic water requirement for human activities and consumption is about 50 litres/person/day. Thus, the total volume of effluent generated through biodegradation by the existing population of 6,920 people was estimated to be about 345,900 litres/day and the annual generation is estimated to be about 126,253,500 litres/year. According to European Community (2001) on sludge directive,the effluent from one person gives 25 kg/yr. Thus, the total sludge production/yr based on the existing population of the study area is estimated to be about 172,950 kg/yr. The total sludge production/day was estimated to be about 474 kg/day. The research revealed that the total daily sludge production by the population is about 9.5 bags in 50 kg unit and that dewatering reduces the sludge content by 20%.