期刊
ECOLOGICAL ENGINEERING
卷 74, 期 -, 页码 463-473出版社
ELSEVIER
DOI: 10.1016/j.ecoleng.2014.11.007
关键词
Phytoremediation; Diesel; Degradation; Scirpus grossus; Rhizobacteria
资金
- Malaysian Ministry of Education [FRGS/1/2013/TK07/UKM/02/7]
- Universiti Kebangsaan Malaysia [UKM-KK-03-FRGS0119-2010]
- Tasik Chini Research Centre
- Iraqi Ministry of Higher Education and Scientific Research
Phytoremediation using the perennial plant Scirpus grossus has been suggested as an environmentally friendly and economical method for treating contaminated water. In this study, a pilot-scale constructed wetland with a sub-surface batch system was adapted for the phytoremediation of contaminated water with different diesel concentrations, i.e., 0%, 0.1%, 0.175%, and 0.25% (V-diesel/V-water), using S. grossus for a period of 72 days under greenhouse conditions. The degradation of total petroleum hydrocarbons (TPH) from the water by S. grossus after 72 days of diesel exposure was recorded as 81.5%, 71.4%, and 66.6% for 0.1%, 0.175%, and 0.25% diesel (v/v) treatments, respectively. S. grossus was extracted, and the results show that the maximum TPH was 223.56 mg kg(-1) in stem + leaf samples with 93.72% n-alkanes C20-C34. In the batch biodegradation experiment, the rhizobacteria of S. grossus played a role in diesel degradation in the rhizosphere zone. Hence, a sub-surface batch constructed wetland using S. grossus could be a promising solution for the phytoremediation of industrial contaminated water with diesel. (C) 2014 Elsevier B.V. All rights reserved.
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