سال انتشار: ۱۳۹۱

محل انتشار: نهمین کنگره بین المللی مهندسی عمران

تعداد صفحات: ۸

نویسنده(ها):

Ali Akbar Ramezanianpour – Head of Concrete Technology and Durability Research Center, Amirkabir University of Technology Tehran,
Morteza Nikravan – Civil and Environmental Engineering Faculty, Amirkabir University of Technology, Tehran, Iran
Reza Maknoon –
Navid Nasher Ahkami –

چکیده:

Incineration followed by stabilization/solidification is identified as the demonstrated available treatment technology in the USA, according to Resource Conservation and Recovery Act. In the present study (S/S) technology was applied on petrochemical incinerator bottom ash (PI-BA) using Portland cement (II 45) and two types of pozzolanic materials: silica fume and Nano-SiO2. The leaching behavior of the cement-based products was studied using standard environmental tests, TCLP and NEN 7375 effectiveness of treatmrnt was evaluated in terms of reducing the heavy metal leachability to the levels below the European and USEPA landfilling criteria. An optimum composition for the PI-BA stabilization was formulated as 45%Bottom ash+10% silica fume to achieve the environmental and economic criteria The results show that the stabilization process can be considered as an appropriate and cost effective alternative to hazardous waste landfill.Furthermore, solidified products have a potential to be reused as construction materials in different applications