Review Article
Treatment of Oil Sludge Contamination by Composting
Ved Prakash1*, Sarika Saxena1, Ambika Sharma1, Sweta Singh1 and Sunil Kumar Singh2 | |
1Madhav Institute of Technology & Science, Gwalior, Madhya Pradesh, India | |
2Vellore Institute of Technology, Vellore, Tamil Nadu, India | |
Corresponding Author : |
Ved Prakash |
Received March 12, 2015; Accepted March 16, 2015; Published March 23, 2015 | |
Citation:Prakash V, Saxena S, Sharma A, Singh S, Singh SK (2015) Treatment of Oil Sludge Contamination by Composting. J Bioremed Biodeg 6:284. doi:10.4172/2155-6199.1000284 | |
Copyright: © 2015 Prakash V, et al. This is an open-a ccess article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. | |
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Abstract
Sludge is a complex emulsion of various petroleum hydrocarbons (PHCs), water, heavy metals, and solid particles. 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. It also affects the soil fertility. Treatment of oil sludge includes physical, chemical and biological process but still cost effective method is needed. Composting can serve as remedy to treat the sludge provided factors such as nutrients, pH, moisture, aeration and temperature within the compost pile. For maintaining the humidity different bulking agent can be used. High microbial diversity and activity during composting, due to the abundance of substrates in feedstocks, promotes degradation of xenobiotic organic compounds, such as pesticides, polycyclic aromatic hydrocarbons (PAHs), and polychlorinated biphenyls (PCBs). Microorganisms can also bio transform pollutants into less toxic substances. The exhaustive investigation of oily sludge treatment methods will provide researchers to have a thorough understanding of recent developments and future research directions.