کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10374047 | 878615 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Acute and Sub-Lethal Toxicity of Landfill Leachate Towards two Macro-Invertebrates
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Acute and Sub-Lethal Toxicity of Landfill Leachate Towards two Macro-Invertebrates Acute and Sub-Lethal Toxicity of Landfill Leachate Towards two Macro-Invertebrates](/preview/png/10374047.png)
چکیده انگلیسی
Aspecific leachate that contained 1.036 mgl-1 of 2-chlorobiphenyl was used in the study (255 mgl-1 COD and 133 mgl-1 BOD5). When operated on a 10 day hydraulic retention time (RT), reed beds planted with Juncus effusus removed 60% of the leachates COD, compared to 25% in unplanted beds. The constructed wetlands proved effective at reducing the level of acute toxicity to A. aquaticus and G. pulex. In untreated leachate, the LC50 for A. aquaticus was 57% v/v leachate in deionized water and 5% for G. pulex. When reed beds were operated on a 1-10 day RT, the LC50 for Asellus increased from 69% to below the LC50 threshold. The Gammarus LC50 also rose from 10% to 50%. The maximum toxicity reduction achieved by unplanted beds was 10% towards A. aquaticus and 5% for G. pulex, when operated on a 10 day RT. However, in sub-lethal concentrations of reed bed effluent (100%, 80% and 60% dilutions, obtained from planted beds on a 10 day RT), the final length of Asellus was significantly reduced, in comparison to a deionized water control. It is also speculated that chronic leachate stress may have affected the fecundity of Gammarus, however, insufficient data was collected to statistically validate this hypothesis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Process Safety and Environmental Protection - Volume 83, Issue 2, March 2005, Pages 184-190
Journal: Process Safety and Environmental Protection - Volume 83, Issue 2, March 2005, Pages 184-190
نویسندگان
M.C. Bloor, C.J. Banks,