文章基本信息

标题：Characteristics and disposal options of sludge from a steel mill wastewater treatment plant
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作者：Mehdi Ahmadi ; Mehdi Ahmadi ; Fatemeh Bohlool 等
期刊名称：Journal of Advances in Environmental Health Research
电子版ISSN：2345-3990
出版年度：2013
卷号：1
期号：2
页码：112-119
DOI：10.22102/jaehr.2014.40175
语种：English
出版社：Kurdistan University of Medical Sciences
摘要：In the present study, sludge from a steel wastewater treatment plant (SWWTP) was analyzed regarding its physicochemical characteristics and metal contents, and disposal options. For these purposes, grab sampling was used to collect 18 slurry and 18 cake sludge samples in 6 mouth (May-October 2012). Mann-Whitney U test, one sample T-test and Wilcoxon signed rank test were applied to analyze the obtained data. Canadian Soil Quality Guidelines (CSQG) and Florida Department of Environmental Protection Soil Cleanup Target Levels (FDEPSCTLs) were used to discuss the disposal fate of the generated sludge. The results showed that the order of the studied metals in the sludge was as: Fe>Al>Ca>Mg>Zn>Na>Pb>Mn>Cu>Cr>Ni>Co>Cd. It was found that due to higher concentration of Cu, Pb, Zn and Fe in the generated sludge, compared with CSQG and FDEPSCTLs, it is not suitable for residential and non-residential applications.
关键词：Industrial Wastewater Sludge; Physicochemical Characteristics; Steel Mill; Disposal