Environmental & Analytical Toxicology

ISSN: 2161-0525

Open Access

Chukwudi Anyanwu

Department of Science Laboratory Technology, University of Nigeria, Nsukka, Nigeria

  • Research Article   
    Selling Points of Sewage Sludge as an Enhancing Agent of Bioremediation of Diesel Oil-Polluted Soil
    Author(s): Kingsley Tochukwu Ughamba*, Nnabueze Darlington Nnaji, Kenneth Ejike Ogbonna and Chukwudi Anyanwu

    Bioremediation employing the action of microbes alone has been shown to be inadequate. The aim of this study was to evaluate the efficacy of sewage sludge (SS) in enhancing bioremediation of diesel oil-polluted soil. Diesel oil was introduced into the soil at the concentration of 10 % (v/w) and mixed with 5%, 10% and 15% (w/w) of sewage sludge. The remediation of the oil was determined gravimetrically and spectrophotometrically using n-hexane as extractant. Effectiveness of the remediation strategy was assessed by the seed germination toxicity test At the end of forty-two days, 32.22 % oil loss was recorded in the unamended polluted soil while 58.33% oil loss was recorded in the soil amended with sewage sludge. Hydrocarbon- utilizing bacteria (HUB) counts were significantly high (P≤0.05) in the sewage sludge-amended options, ranging from 5.3 ±0.9 x 106.. Read More»
    DOI: 10.37421/2161-0525.21.11.629

    Abstract HTML PDF

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