Study on Harmless Disposal Process of Beneficiation Tailings for a Gold Mine in Fujian Province

Liu Guochen

doi:10.3969/j.issn.1000-6532.2023.01.025

2023 No. 1

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Liu Guochen. Study on Harmless Disposal Process of Beneficiation Tailings for a Gold Mine in Fujian Province[J]. Multipurpose Utilization of Mineral Resources, 2023, 44(1): 177-181. doi: 10.3969/j.issn.1000-6532.2023.01.025

Citation:

Liu Guochen. Study on Harmless Disposal Process of Beneficiation Tailings for a Gold Mine in Fujian Province[J]. Multipurpose Utilization of Mineral Resources, 2023, 44(1): 177-181. doi: 10.3969/j.issn.1000-6532.2023.01.025

Study on Harmless Disposal Process of Beneficiation Tailings for a Gold Mine in Fujian Province

Liu Guochen

Zijin Mining Group Co., Ltd, Shanghang, Fujian, China

Received Date: 28 December 2020

Publish Date: 25 February 2023

Abstract

Abstract

In order to promote the sustainable development of a gold mine in Fujian Province, based on the upstream beneficiation process and indicators, the treatment of beneficiation tailings (carbon leaching tail pulp and heap leaching residues) was studied in detail. The results showed that: Applying alkali-chlorination (bleaching powder) process in treatment for the cyanide containing waste liquid in carbon leaching tail pulp, the cyanide can be effectively removed, the CN^- concentration is reduced from 250 mg/L to 0.217 mg/L, and the removal rate is more than 99.90%. The test index is successfully applied to the production practice, and the effect is also remarkable. The developed beneficiation tailings harmless disposal process, that is, solid slag muck (carbon leaching and heap leaching residues) mixed emissions for ecological restoration, carbon leaching wastewater after reaching the cyanide concentration standard is recycled or discharged according to the actual production, which greatly saves the storage capacity of tailings pond and reduces the occupation of waste dump. The production practice can provide basic basis for the end treatment of beneficiation tailings in the same type of gold mines.
- Carbon leaching tail pulp /
- Heap leaching residues /
- Alkali-chlorination (bleaching powder) /
- Harmless disposal

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References

[1]	蓝碧波, 李廷励, 陈淑萍, 等. 含铜金矿堆浸过程中铜的行为研究[J]. 黄金科学技术, 2013, 21(5):136-139. LAN B B, LI T L, CHEN S P, et al. Study on the behavior of copper in the heap leaching process of copper-bearing gold ore[J]. Gold Science and Technology, 2013, 21(5):136-139. Google Scholar
[2]	刘国晨. 某石英脉型金矿石选矿工艺开发试验研究[J]. 矿产综合利用, 2019(5):75-79. LIU G C. Experimental study on mineral processing development of a quartz vein type gold ore[J]. Multipurpose Utilization of Mineral Resources, 2019(5):75-79. doi: 10.3969/j.issn.1000-6532.2019.05.016 CrossRef Google Scholar
[3]	李得立, 曾小波, 魏友华, 等. 矿山企业矿产资源开发利用水平评价方法研究 ——以湖南省金矿矿山为例[J]. 矿产综合利用, 2019(5):22-27. LI D L, ZENG X B, WEI Y H, et al. Research on evaluation method of mineral exploration level for mine enterprise-taking Hunan provice gold mine enterprise as an example[J]. Multipurpose Utilization of Mineral Resources, 2019(5):22-27. doi: 10.3969/j.issn.1000-6532.2019.05.005 CrossRef Google Scholar
[4]	国家环境保护总局. HJ/T 299—2007, 固体废物、浸出毒性浸出方法、硫酸硝酸法[S]. 北京: 中国环境科学出版社, 2007: 3-5. Google Scholar State Environmental Protection Administration. HJ/T 299—2007, solid waste, leaching toxicity leaching method, sulfuric acid and nitric acid method[S]. Beijing: China Environmental Science Press, 2007: 3-5. Google Scholar
[5]	生态环境部, 国家市场监督管理总局. GB 18598—2019, 危险废物填埋污染控制标准[S]. 北京: 中国环境出版社, 2019: 8. Google Scholar Ministry of Ecology and Environment, State Administration for Market Regulation. GB 18598—2019, Pollution Control Standard for Hazardous Waste Landfill [S]. Beijing: China Environment Press, 2019: 8. Google Scholar
[6]	郭金溢. 低浓度含氰炭浸尾浆处理工艺研究[J]. 中国有色冶金, 2019(2):69-72. GUO J Y. Research on the treatment process of low-concentration cyanide-containing carbon leaching tailings[J]. China Nonferrous Metallurgy, 2019(2):69-72. doi: 10.3969/j.issn.1672-6103.2019.02.019 CrossRef Google Scholar
[7]	李超, 童明全, 潘蓉, 等. 含氰废水处理方法综述[J]. 山西化工, 2017(6):149-151. LI C, TONG M Q, PAN R, et al. Summary of treatment methods for cyanide-containing wastewater[J]. Shanxi Chemical Industry, 2017(6):149-151. Google Scholar
[8]	董凯伟, 白云龙, 谢锋, 等. 氰化废水回收技术综述[J]. 有色金属(冶炼部分), 2020(4):75-83. DONG K W, BAI Y L, XIE F, et al. Overview of cyanide wastewater recovery technology[J]. Non-ferrous Metals (Extractive Metallurgy), 2020(4):75-83. Google Scholar
[9]	国家环境保护局. GB 8978—1996, 污水综合排放标准[S]. 北京: 中国环境科学出版社, 1996: 5-7. Google Scholar National Environmental Protection Agency. GB 8978—1996, Integrated wastewater discharge standard [S]. Beijing: China Environmental Science Press, 1996: 5-7. Google Scholar
[10]	环境保护部. HJ 943—2018, 黄金行业氰渣污染控制技术规范[S]. 北京: 中国环境科学出版社, 2018: 13-14. Google Scholar Ministry of Environmental Protection. HJ 943—2018, Technical specification for cyanide slag pollution control in the gold industry[S]. Beijing: China Environmental Science Press, 2018: 13-14. Google Scholar
[11]	侯凯, 谢贤, 童雄, 等. 我国金矿床的工业类型及选矿研究方法[J]. 矿产综合利用, 2014(4):9-16. HOU K, XIE X, TONG X, et al. Industrial types of gold deposits in my country and research methods for beneficiation[J]. Multipurpose Utilization of Mineral Resources, 2014(4):9-16. doi: 10.3969/j.issn.1000-6532.2014.04.003 CrossRef Google Scholar
[12]	崔立凤, 田树国. 低品位难处理金矿石氰化提金工艺实验研究[J]. 矿产综合利用, 2017(2):15-18. CUI L F, TIAN S G. Experimental study on the cyanide gold extraction process of low-grade refractory gold ore[J]. Multipurpose Utilization of Mineral Resources, 2017(2):15-18. doi: 10.3969/j.issn.1000-6532.2017.02.004 CrossRef Google Scholar
[13]	许永, 邵立南, 杨晓松. 碱性氯化法处理黄金氰化废水[J]. 有色金属工程, 2013, 3(3):38-40. XU Y, SHAO L N, YANG X S. Treatment of gold cyanide wastewater by alkaline chlorination process[J]. Nonferrous Metal Engineering, 2013, 3(3):38-40. doi: 10.3969/j.issn.2095-1744.2013.03.008 CrossRef Google Scholar
[14]	黄成戈, 唐道文, 蔡鹏源, 等. 漂白粉浸出贵州难浸金矿的正交实验研究[J]. 有色金属科学与工程, 2020, 11(2):97-103. HUANG C G, TANG D W, CAI P Y, et al. Orthogonal experimental study on bleaching powder for leaching refractory gold deposits in Guizhou[J]. Nonferrous Metal Science and Engineering, 2020, 11(2):97-103. Google Scholar
[15]	张莉荣, 张菊. 漂粉精母液处理金矿含氰废水的实验研究[J]. 金属矿山, 2005(Z):540-542. ZHANG L R, ZHANG J. Experimental study on the treatment of cyanide-containing wastewater from gold mine with mother liquor of bleaching powder concentrate[J]. Metal Mine, 2005(Z):540-542. Google Scholar
[16]	曾平生. 次氯酸钠在低浓度含氰废水处理中的运用[J]. 石油化工安全环保技术, 2010, 26(3):52-55. ZENG P S. Application of sodium hypochlorite in the treatment of low-concentration cyanide-containing wastewater[J]. Petrochemical Safety and Environmental Protection Technology, 2010, 26(3):52-55. doi: 10.3969/j.issn.1673-8659.2010.03.014 CrossRef Google Scholar
[17]	李学强, 庄宇凯, 冯金敏, 等. 氰化尾渣综合回收实验研究[J]. 黄金, 2010, 31(9):43-45. LI X Q, ZHUANG Y K, FENG J M, et al. Experimental research on comprehensive recovery of cyanide tailings[J]. Gold, 2010, 31(9):43-45. doi: 10.3969/j.issn.1001-1277.2010.09.011 CrossRef Google Scholar
[18]	环境保护部, 国家质量监督检验检疫总局. GB 21900—2008, 电镀污染物排放标准[S]. 北京: 中国环境科学出版社, 2008: 4-5. Google Scholar Ministry of Environmental Protection, General Administration of Quality Supervision, Inspection and Quarantine. GB 21900—2008, Electroplating pollutant emission standard [S]. Beijing: China Environmental Science Press, 2008: 4-5. Google Scholar