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Heavy metal removal from water and wastewater using raw and modified diatomite

Moslehi, P ; Sharif University of Technology | 2007

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  1. Type of Document: Article
  2. Publisher: Materials and Energy Research Center , 2007
  3. Abstract:
  4. 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 0.35 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 2.2 fold increase, hence higher removal capacity for the heavy metals. The results of the removal showed an increase in adsorption capacity which was for Pb2+ about 40 mg/g, for Ni 2+ about 34mg/g and for Cu2+ about 33mg/g. The filtration quality of diatomite was significantly enhanced with surface modification by manganese oxide
  5. Keywords:
  6. Adsorption ; Chemicals removal (water treatment) ; Dewatering ; Heavy water ; Lead ; Manganese compounds ; Manganese removal (water treatment) ; Metal recovery ; Metals ; Mining ; Oxides ; Wastewater ; Adsorption capacities ; Diatomite ; Heavy metal removal ; Manganese oxide ; Mn-Diatomite ; Removal capacity ; Surface area measurement ; Surface modification ; Water and wastewater ; Manganese
  7. Source: International Journal of Engineering, Transactions B: Applications ; Volume 20, Issue 2 , 2007 , Pages 141-146 ; 1728-144X (ISSN)
  8. URL: https://www.ije.ir/article_71651.html