Heavy Metal Removal from Water and Wastewater Using Raw and Modified Diatomite (TECHNICAL NOTE)
عنوان مقاله: Heavy Metal Removal from Water and Wastewater Using Raw and Modified Diatomite (TECHNICAL NOTE)
شناسه ملی مقاله: JR_IJE-20-5_004
منتشر شده در در سال 1386
شناسه ملی مقاله: JR_IJE-20-5_004
منتشر شده در در سال 1386
مشخصات نویسندگان مقاله:
P. Nahid - Chemical & Physic Emgineering, Sharif University of Technology
P. Moslehi - Chemical & Petroleum Engineering, Sharif University of Technology
خلاصه مقاله:
P. Nahid - Chemical & Physic Emgineering, Sharif University of Technology
P. Moslehi - Chemical & Petroleum Engineering, Sharif University of Technology
heavy metal removal from water and wastewater was investigated by using raw and modified diatomite from Iranian mines. Modification of diatomite was done by impregnating the diatomite surface with ۰.۳۵ g of manganese oxide in one gram of diatomite. This modified diatomite was named Mn-Diatomite. The surface area measurements for Mn-diatomite showed a ۲.۲ fold increase, hence higher removal capacity for the heavy metals. The results of the removal showed an increase in adsorption capacity which was for Pb۲+ about ۴۰ mg/g, for Ni۲+ about ۳۴mg/g and for Cu۲+ about ۳۳mg/g. The filtration quality of diatomite was significantly enhanced with surface modification by manganese oxide.
کلمات کلیدی: Diatomite, Mn, heavy metals, Adsorption and Wastewater
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/1416356/