A community-based innovative approach of deriving a functional compost for remediation of crude oil contaminated soil

DOI

10.2991/978-94-6463-306-1_2How to use a DOI?

Keywords

Compost; Composting process; crude oil; chicken manure; hydrocarbon utilizing microbes

Abstract

Compost is a local product that has proven effective in soil remediation. Its performance is attributed to the diversity of microbes and nutrients that augment indigenous soil microbes and stimulate biodegradation processes respectively. Improving its performance is imperative to reduce the influx of foreign remediation products into the country. This study investigated a simple method of improving compost quality to comprise abundant crude oil-tolerant microbes. The feedstock was made up of chicken manure, sawdust, and dry leaves at the weight ratio of 1.4 kg:0.4 kg:0.1 kg. Crude oil was added at 20000 mg/kg weight of feedstock and tagged TC, while the control, UC, was without crude oil. After 4 weeks monitoring, the inclusion of crude oil did not hinder the composting process. The pH, Total Nitrogen, Available Phosphorus and Total Organic Carbon recorded by TC were 8.30, 1.33%, 0.83%, and 43.81% respectively, while for UC the values were respectively 8.20, 1.02%, 0.78%, and 42.31%. Nevertheless, the presence of crude oil significantly increased hydrocarbon utilizing microbes. The HUF recorded by TC and UC were 2.96 x 10⁶ CFU/g and 1.42 x 10⁶ CFU/g respectively, while HUB for TC and UC were 1.58 x 10⁸ CFU/g and 0.9 x10⁸ CFU/g respectively. Also, the GC chromatograms reflected a concurrent reduction of petrogenic and non-petrogenic carbons, and the TPH reduction in TC was 61.1% after 4 weeks. Therefore, the inclusion of crude oil in the composting stimulated abundant crude oil-adapted microbes without compromising the required nutrients, hence having the potential of enhancing soil remediation.

Copyright

© 2023 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Ismail Baba Ahmed
AU  - Eucharia Oluchi Nwaichi
AU  - Ejike Ugwoha
PY  - 2023
DA  - 2023/12/18
TI  - A community-based innovative approach of deriving a functional compost for remediation of crude oil contaminated soil
BT  - Proceedings of the 6th Biennial Conference of Organization for Women in Science for the Developing World Nigeria (OWSD 2023)
PB  - Atlantis Press
SP  - 4
EP  - 25
SN  - 2468-5747
UR  - https://doi.org/10.2991/978-94-6463-306-1_2
DO  - 10.2991/978-94-6463-306-1_2
ID  - Ahmed2023
ER  -