Biostimulation of Diesel Polluted Soil using Poultry
Droppings
Volume 2 - Issue 3
Onaiwu DO1 and Ilaboya IR2*
- 1Department of Petroleum Engineering, Faculty of Engineering, University of Benin, Nigeria
- 2Department of Civil Engineering, Faculty of Engineering, University of Benin, Nigeria
Received:August 16, 2021; Published:September 27, 2021
*Corresponding author: Ilaboya IR, Department of Civil Engineering, Faculty of Engineering, University of Benin, Benin City, Edo State,
Nigeria
DOI: 10.32474/CTBM.2021.02.000139
Fulltext
PDF
To view the Full Article Peer-reviewed Article PDF
Abstract
Biostimulation is a form of bioremediation that involves the optimization of soil conditions such as pH, moisture, oxygen etc. to
improve pollutant degradation. It embodies the introduction/ addition of nutrients to aid microbial growth. The impact of diesel
pollution on the physicochemical properties of soil and the effects of remediation using poultry droppings was investigated. Sample
soil, polluted with diesel was simulated in a single bio-treatment unit. Before contamination, the soil sample was characterized
after digestion (using 1:1 ratio of 0.25M hydrochloric acid and Nitric acid) to determine the intrinsic properties of the soil. For
effective treatment, a 2:1 mixture (w/w) of the polluted soil and the substrate in addition to 25ml of nutrient agar was utilized. The
physicochemical properties of soil and rate of pollutant degradation after remediation was monitored for a period of 8 weeks. The
initial total heterotrophic bacterial (THB) present in the experimental soil at week 1, was 2.44×105 cfu/g. The total heterotrophic
bacterial after bioremediation was 3.74×105 cfu/ g. Also, the total hydrocarbon content (THC) decreased from an initial value
of 7.89 mg/kg at week 1 to 2.67mg/kg at week 8. These results demonstrate the effectiveness of poultry droppings as a potent
remediation tool for diesel polluted soil.
Keywords: Biostimulation; Diesel Polluted Soil; Poultry Droppings; Total Heterotrophic Bacterial and Total Hydrocarbon Contenta
Abstract|
Introduction|
Experimental Procedure|
Results and Discussion|
Conclusion|
References|