کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1058705 947132 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Utilization of washed MSWI fly ash as partial cement substitute with the addition of dithiocarbamic chelate
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
Utilization of washed MSWI fly ash as partial cement substitute with the addition of dithiocarbamic chelate
چکیده انگلیسی

The management of the big amount of fly ash as hazardous waste from the municipal solid waste incinerator (MSWI) has encountered many problems in China. In this study, a feasibility research on MSWI fly ash utilization as partial cement substitute in cement mortars was therefore carried out. MSWI fly ash was subjected to washing process to reduce its chlorine content (from 10.16% to 1.28%). Consequently, it was used in cement mortars. Ten percent and 20% replacement of cement by washed ash showed acceptable strength properties. In TCLP and 180-day monolithic tests, the mortars with washed ash presented a little stronger heavy metal leachability, but this fell to the blank level (mortar without washed ash) with the addition of 0.25% chelate. Therefore, this method is proposed as an environment-friendly technology to achieve a satisfactory solution for MSWI fly ash management.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Management - Volume 88, Issue 2, July 2008, Pages 293–299
نویسندگان
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