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Journal of Health Sciences and Surveillance System، جلد ۳، شماره ۴، صفحات ۱۵۳-۰
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عنوان انگلیسی Leaching Zn, Cd, Pb, and Cu from Wastewater Sludge Using Fenton Process
چکیده انگلیسی مقاله Background: High amount of heavy metals in sludge is one of the major obstacles to its use on farms. The present study aimed to investigate the possibility of leaching heavy metals from wastewater sludge by Fenton method and determine the optimum level of parameters, such as iron, hydrogen peroxide, time, and pH for Fenton reaction. Methods: The effects of various parameters, such as pH (2-9), hydrogen peroxide concentration (0.5-6 g/l), Fe concentration (0.5-4 g/l), and leaching time (5-60 min), were studied. Results: The results showed that the optimal condition for leaching of heavy metals occurred at pH of 2 3, hydrogen peroxide concentration of 3 g/l, iron concentration of 2 g/l, and leaching time of 15 min. Under these optimal conditions, 92% of Zn, 100% of Cd, 100% of Pb, and 80% of Cu were leached from the wastewater sludge. Conclusions: Fenton method can leach heavy metals from wastewater sludge through decomposition of organic materials at H2O2/Fe ratio of 1.5:2.
کلیدواژه‌های انگلیسی مقاله Fenton, Heavy metals, Hydrogen peroxide, Wastewater sludge
نویسندگان مقاله abooalfazl azhdarpoor | abooalfazl azhdarpoor
assistant professor, department of environmental health, school of health, shiraz university of medical sciences, shiraz, iran;

سازمان اصلی تایید شده: دانشگاه علوم پزشکی شیراز (Shiraz university of medical sciences)

ربیعه حسینی | rabieh hoseini
ma student of environmental health engineering, shiraz university of medical sciences, shiraz, iran;

سازمان اصلی تایید شده: دانشگاه علوم پزشکی شیراز (Shiraz university of medical sciences)

منصوره دهقانی | mansoureh dehghani
associate professor, department of environmental health, school of health, shiraz university of medical sciences, shiraz, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی شیراز (Shiraz university of medical sciences)

نشانی اینترنتی http://jhsss.sums.ac.ir/index.php/jhsss/article/view/127
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Original Articles
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