Vol 5 Issue 2 September 2018-February 2019
Ugbebor, John N
Abstract:The study investigated the effect of temperature and concentration of biogenic oil effluent (BOE) discharged into a lake in River State, Nigeria. Standard method of physicochemical characteristics was used to analyze field parameters. The results indicated that the average temperature ranged between 26.2oC to 30.4oCand effluent concentration ranged between 98.2 mg/l to 986mg/l for mixture and raw effluent. The high value of Nitrogen (N), Phosphorus (P), Potassium (K), and Magnessium(Mg) were major components of biogenic effluent. It was observed that there was algae bloom and eutrophication due to high organic load in the lake. The re-aeration constant determined from the dissolved oxygen data from the study lake varies from 0.01d-1 to 0.19d-1 with an average of 0.062d-1. The de-oxygenation constant obtained from laboratory determined from BOD5 data was 0.44d-1. The self purification factor was 0.14. The study derived two models which predicted the re-aeration constant from measured field values. The correlation coefficient of the derived models for temperature and biogenic effluent were 0.914 and 0.978 respectively. The critical dissolved oxygen and critical deficit were 2.01 mg/l and 5.19mg/l respectively. The study recommended close monitoring of effluent discharge into the lake, effluent treatment and restriction of biogenic oil effluent discharged into a saver pit to minimize pollution into the lake.
Keywords:Effluent, physicochemical, biogenic, eutrophication, de-oxygenation, re-aereation, Pollution.
Title:Modelling the Effects of Temperature and Biogenic Oil Effluent Concentration on Reaeration Coefficient of a Lake
Author:Ugbebor, John N
ISSN 2394-7349
International Journal of Novel Research in Engineering and Science
Novelty Journals
