dc.contributor.author |
Ubani, Onyedikachi
|
|
dc.contributor.author |
Atagana, H.I.
|
|
dc.contributor.author |
Thantsha, Mapitsi Silvester
|
|
dc.date.accessioned |
2015-05-11T06:49:30Z |
|
dc.date.available |
2015-05-11T06:49:30Z |
|
dc.date.issued |
2014-11-20 |
|
dc.description.abstract |
Oil sludge is a thick viscous mixture of sediments, water, oil and hydrocarbons, encountered during
crude oil refining, cleaning of oil storage vessels and waste treatment. Polycyclic aromatic
hydrocarbons (PAHs), which are components of crude oil sludge, constitute serious environmental
concerns, as many of them are cytotoxic, mutagenic and potentially carcinogenic. Improper
management and disposal of oil sludge causes environmental pollution. The adverse effects of oil
sludge on soil ecology and fertility have been of growing interest among environmental scientist and an
important consideration in the development of efficient technologies for remediation of contaminated
land, with a view to making such land available for further use. Oil sludge can be treated by several
methods such as physical, chemical and biological processes. The biological processes are mostly
cost effective and environmentally friendly, as they are easy to design and implement, as such they are
more acceptable to the public. Compost, the product of biological breakdown of organic matter is a rich
source of hydrocarbon-degrading microorganisms such as bacteria and fungi. These microorganisms
can degrade the oil sludge to less toxic compounds such as carbon dioxide, water and salts. Compost
bioremediation, the application of composting in remediation of contaminated environment, is
beginning to gain popularity among remediation scientists. The success or failure of compost
bioremediation depends on a number of factors such as nutrients, pH, moisture, aeration and
temperature within the compost pile. The bioavailability and biodegradability of the substrate to the
degrading microorganisms also contributes to the success of the bioremediation process. This is a
review on the biological remediation technologies employed in the treatment oil sludge. It further
assesses the feasibility of using compost technology for the treatment of oil sludge, as a better, faster
and more cost effective option. |
en_ZA |
dc.description.librarian |
am2015 |
en_ZA |
dc.description.sponsorship |
The South African National Research Foundation |
en_ZA |
dc.description.uri |
http://www.academicjournals.org/AJB |
en_ZA |
dc.identifier.citation |
Ubani, O, Atagana, HI & Thantsha, MS 2014, 'Biological degradation of oil sludge : a review of the current state of development', African Journal of Biotechnology, vol. 12, no. 47, pp. 6544-6567. |
en_ZA |
dc.identifier.issn |
1684-5315 |
|
dc.identifier.other |
10.5897/AJB11.1139 |
|
dc.identifier.uri |
http://hdl.handle.net/2263/45088 |
|
dc.language.iso |
en |
en_ZA |
dc.publisher |
Academic Journals |
en_ZA |
dc.rights |
© 2013 Academic Journals |
en_ZA |
dc.subject |
Biodegradation |
en_ZA |
dc.subject |
Bioremediation |
en_ZA |
dc.subject |
Composting |
en_ZA |
dc.subject |
Oil sludge |
en_ZA |
dc.subject |
Polycyclic aromatic hydrocarbons (PAHs) |
en_ZA |
dc.title |
Biological degradation of oil sludge : a review of the current state of development |
en_ZA |
dc.type |
Article |
en_ZA |