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Petroleum Science and Technology Volume 32, 2014 - Issue 17
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Original Articles

The Remediation of Waste Drilling Muds by a Combined Plant-microbe System

Y.-Y. FanSchool of Water Resources and Environment, China University of Geosciences, Beijing, China;Safety, Environment & Technology Supervision Research Institute, Petrochina Southwest Oil & Gasfield Company, Chengdu, ChinaCorrespondence[email protected]
,
G.-C. WangSchool of Water Resources and Environment, China University of Geosciences, Beijing, China
,
J.-H. FuSafety, Environment & Technology Supervision Research Institute, Petrochina Southwest Oil & Gasfield Company, Chengdu, China
&
X.-H. ZhengSafety, Environment & Technology Supervision Research Institute, Petrochina Southwest Oil & Gasfield Company, Chengdu, China
Pages 2086-2092 | Published online: 10 Jun 2014
 
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Abstract

In the present study, waste drilling muds from an active drilling operation were used to evaluate the feasibility and efficiency of bioremediation in the laboratory during a one-year trial and following a phytoremediation treatment. The results showed that total organic carbon (TOC) content in the muds decreased from 89800 to 21700 mg/kg after 48 h of biotreatment in a slurry reactor, and the chroma removal efficiency reached 81.5%. TOC contamination level was decreased by 84.6% after 240 days of phytoremediation.

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