Preprint Article Version 1 This version is not peer-reviewed

The Ex-Situ Bioremediation Kinetics of Raw and Treated Crude Oil Polluted Soil Using Aspergillus Niger and Pseudomonas Aeruginosa

Version 1 : Received: 11 July 2018 / Approved: 11 July 2018 / Online: 11 July 2018 (13:13:04 CEST)

How to cite: Ojewumi, M.; Ejemen, V. The Ex-Situ Bioremediation Kinetics of Raw and Treated Crude Oil Polluted Soil Using Aspergillus Niger and Pseudomonas Aeruginosa. Preprints 2018, 2018070202 (doi: 10.20944/preprints201807.0202.v1). Ojewumi, M.; Ejemen, V. The Ex-Situ Bioremediation Kinetics of Raw and Treated Crude Oil Polluted Soil Using Aspergillus Niger and Pseudomonas Aeruginosa. Preprints 2018, 2018070202 (doi: 10.20944/preprints201807.0202.v1).

Abstract

The study was done to investigate the kinetics of first order bioremediation. The effectiveness of remediating soils polluted with raw crude oil and treated crude oil using Aspergillus niger (fungi) and Pseudomonas aeruginosa (bacteria) were investigated. Eight systems of 500g soil sample were polluted with both raw and treated crude oil. Four systems were polluted with 40g treated crude oil while the other remaining four systems were polluted with 40g raw crude oil. Two systems with raw crude and treated crude were left as control (RCC and TCC). Raw crude samples were treated with Aspergillus niger only (RCA) and Pseudomonas aeruginosa (RCP) while treated crude samples were also treated with same (TCA) and (TCP) only. The last two systems were treated with both Pseudomonas aeruginosa and Aspergillus niger (RCAP and TCAP). The first order bioremediation kinetics and biostimulant efficiency for these systems were studied by monitoring Total Petroleum Hydrocarbon (TPH). At the end of the bioremediation period, the results obtained showed that treated crude oil polluted soil generally remediated faster and better than raw crude oil polluted soil. The highest level of bioremediation occurred in systems amended with both Pseudomonas aeruginosa and Aspergillus niger which had about 98% TPH decrease.

Subject Areas

bioremediation; Ex-situ; Aspergillus niger; Pseudomonas aeruginosa; Total Petroleum Hydrocarbon; crude oil; biostimulant efficiency; Kinetics

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