کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4425727 1309112 2010 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Metal and metalloid removal in constructed wetlands, with emphasis on the importance of plants and standardized measurements: A review
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Metal and metalloid removal in constructed wetlands, with emphasis on the importance of plants and standardized measurements: A review
چکیده انگلیسی

This review integrates knowledge on the removal of metals and metalloids from contaminated waters in constructed wetlands and offers insight into future R&D priorities. Metal removal processes in wetlands are described. Based on 21 papers, the roles and impacts on efficiency of plants in constructed wetlands are discussed. The effects of plant ecotypes and class (monocots, dicots) and of system size on metal removal are addressed. Metal removal rates in wetlands depend on the type of element (Hg > Mn > Fe = Cd > Pb = Cr > Zn = Cu > Al > Ni > As), their ionic forms, substrate conditions, season, and plant species. Standardized procedures and data are lacking for efficiently comparing properties of plants and substrates. We propose a new index, the relative treatment efficiency index (RTEI), to quantify treatment impacts on metal removal in constructed wetlands. Further research is needed on key components, such as effects of differences in plant ecotypes and microbial communities, in order to enhance metal removal efficiency.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Pollution - Volume 158, Issue 12, December 2010, Pages 3447–3461
نویسندگان
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