Turning waste into profit: Circular economic optimization of quartz sand from tin mining and processing

被引:2
|
作者
Sulista, Sulista [1 ,3 ]
Rosyid, Fadhila Achmadi [2 ]
Wibowo, Arjo Prawoto [2 ]
机构
[1] Bappeda Kepulauan Bangka Belitung Prov, Res & Dev Div, Pangkal Pinang 33149, Indonesia
[2] Bandung Inst Technol, Dept Min Engn, Jl Ganesha 10, Bandung 40132, Indonesia
[3] Integrated Off Complex Prov Govt Kepulauan Bangka, Bappeda Kepulauan Bangka Belitung Prov, Air Itam 33149, Pangkalpinang, Indonesia
关键词
Cost efficiency; Material circularity; Mining waste; Resource productivity; The circular economy added value; INDUSTRY;
D O I
10.1016/j.spc.2023.05.002
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
This paper analyzes whether the mining industry can apply circular economy principles in its investment, using two business scenarios of the circular economy. Scenario A utilizes quartz sand from tin mining residues and then processes it into concrete sand. Meanwhile, Scenario B is similar to Scenario A in the first stage, but the residue produced from the first stage is reprocessed to produce concrete sand. To compare the economic feasibility of both scenarios, this study applies a discounted cash flow technique and an incremental analysis. Material flow analysis investigates the circularity and productivity from resource utilization in every design. The two business scenarios are economically viable, but Scenario B is better than Scenario A. NPV of Scenarios A and B are US$ 513 thousand and US$ 322 thousand, respectively. The NPVB-A is US$ 147, whereas the IRR of Scenario A is 26.24 % and Scenario B is 34.05 %. The circularity of Scenarios A is 0.86 with a productivity of US$1.62/m3, and the circularity of Scenario B is 0.94 with a productivity of US$1.80/m3. Therefore, Scenario B is more efficient than that of Scenario A. Eventually, implementations of the circular economy principles in the mining industry are possible. These results can become a consideration for investors to innovate through circular economy approaches in their mining business for sustainable production and consumption purposes.
引用
收藏
页码:53 / 62
页数:10
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