کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1057781 947089 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Flocculant in wastewater affects dynamics of inorganic N and accelerates removal of phenanthrene and anthracene in soil
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
Flocculant in wastewater affects dynamics of inorganic N and accelerates removal of phenanthrene and anthracene in soil
چکیده انگلیسی
Recycling of municipal wastewater requires treatment with flocculants, such as polyacrylamide. It is unknown how polyacrylamide in sludge affects removal of polycyclic aromatic hydrocarbons (PAH) from soil. An alkaline-saline soil and an agricultural soil were contaminated with phenanthrene and anthracene. Sludge with or without polyacrylamide was added while emission of CO2 and concentrations of NH4+, NO3−, NO2−, phenanthrene and anthracene were monitored in an aerobic incubation experiment. Polyacrylamide in the sludge had no effect on the production of CO2, but it reduced the concentration of NH4+, increased the concentration of NO3− in the Acolman soil and NO2− in the Texcoco soil, and increased N mineralization compared to the soil amended with sludge without polyacrylamide. After 112 d, polyacrylamide accelerated the removal of anthracene from both soils and that of phenanthrene in the Acolman soil. It was found that polyacrylamide accelerated removal of phenanthrene and anthracene from soil.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Management - Volume 90, Issue 8, June 2009, Pages 2813-2818
نویسندگان
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