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Ecotoxicology and environmental safety v.147, 2018년, pp.260 - 265   SCI SCIE
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Removal of 1,2-Dichloroethane from real industrial wastewater using a sub-surface batch system with Typha angustifolia L

Al-Baldawi, Israa Abdulwahab
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    Abstract 1,2-Dichloroethane (1,2-DCA) is widely present in urban wastewaters and can be remediated by green technology. Subsurface batch system constructed wetlands (SSCWs) using macrophyte species of T. angustifolia L. were examined to remove 1,2-DCA using real wastewater from a petrochemical industry with a 1,2-DCA concentration of 390mg/L. We conducted an experiment with four pilot-scale constructed wetlands (0.81m 2 ) in a greenhouse. Three SSCWs (T2, T3 and T4) were fed with real wastewater, and another one (T1) was fed with tap water (as plant control) to assess the role of T. angustifolia L. and their associated rhizobacteria to remediate 1,2-DCA. Tank T2 contained only sand without plants acting as contaminant control, tank T3 contained sand with plants and finally tank T4 contained plants with mixture of sand, soil and compost (3:2:1). The results show that the green technology has improved the removal of 1,2-DCA from the contaminated water through biodegradation with a remediation efficiency of 100% in T4 within 42 days. The removal efficiency was enhanced in T4 with 18% more than in T3 due to the compost addition, giving evidence for the potential application of SSCWs to treat chlorinated hydrocarbon in real field. Highlights New approach of green technology to treat 1,2-Dichloroethane (1,2-DCA) in constructed wetlands. 1,2-DCA of 390mg/L in wastewater was completely removed (100%) after 95 days. The removal efficiency was enhanced with addition of compost by 18%.


  • 주제어

    Phytodegradation .   T.   angustifolia L.   .   Constructed wetlands .   Chlorinated hydrocarbon .   Rhizobacteria.  

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