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Asad, M. W. A., Qureshi, M. A., & Jang, H. (2016). A Review of Cut-Off Grade Policy Models for Open Pit Mining Operations. Resources Policy, 49, 142-152.
https://doi.org/10.1016/j.resourpol.2016.05.005

has been cited by the following article:

• TITLE: Assessing the Metal Recovery Value of Municipal Solid Waste Incineration Residues: Impact of Pretreatment on Fly Ash and Bottom Ash

  AUTHORS: Pengfei Li, Takayuki Shimaoka

  KEYWORDS: Water-Washing, Mechanical Sieving, Zinc, Copper, Lead

  JOURNAL NAME: Journal of Geoscience and Environment Protection, Vol.11 No.10, October 19, 2023

  ABSTRACT: This paper focuses on evaluating the metal recovery potential of Municipal Solid Waste Incineration (MSWI) residues, with particular emphasis on the influence of pretreatment methods on MSWI fly ash and bottom ash. We assess the effectiveness of these pretreatments in enhancing the concentration of valuable metals and compare the metal content before and after treatment. Our findings reveal that water washing significantly enhances fly ash’s zinc and copper content, surpassing the minimum industrial-grade requirements. Mechanical sieving is an efficient pretreatment method for bottom ash, with the zinc concentration inversely related to particle size. Additionally, copper content peaks in the 1 - 2 mm particle size range for both bottom ash samples. These results provide valuable insights into the potential for metal recovery from MSWI residues. They hold significance for relevant research, engineering practices, and policy formulation.