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Experimental Research on Treatment of Copper-Containing Acidic Wastewater in Hunan Province for Reutilization
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Mao LI1, Juan ZENG2, Li LI2
Mining and Metallurgical Engineering | 2023, 43(2) : 125 - 129
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Mining and Metallurgical Engineering | 2023, 43(2): 125-129
• METALLURGY •
Experimental Research on Treatment of Copper-Containing Acidic Wastewater in Hunan Province for Reutilization
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Mao LI1, Juan ZENG2, Li LI2
Affiliations
  • 1.Shuikoushan Nonferrous Metals Co Ltd, Hengyang 421513, Hunan, China
  • 2.Changsha Research Institute of Mining and Metallurgy Co Ltd, Changsha 410012, Hunan, China
Published: 2023-04-01 doi: 10.3969/j.issn.0253-6099.2023.02.028
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For the copper-containing acidic wastewater generated during underground mining process of a copper mine, a new processing technique consisting of copper recovery by replacement with iron filings, neutralization of alkaline tailings overflow, and treatment of coagulation and sedimentation was studied, and the effects of adding amount of iron filings, replacement reaction time and stirring speed on copper replacement rate were all investigated. And then, experiments on the proportion of required alkaline tailings overflow for neutralization of acidic wastewater and on toxicity characteristic leaching of neutralized sludge were performed, as well as the kinetics of replacement process was also studied. The results show that this new processing technique can produce sponge copper grading 35.6% Cu at 92.7% recovery, and the acidic wastewater after treatment can be up to the standard and directly discharged, with the cost of treatment agent at 0.95 yuan/t. Due to no hazardous waste generated, this processing technique can bring remarkable economic and environmental benefits.

wastewater treatment  /  copper-containing acidic water  /  copper-iron replacement  /  kinetics
Mao LI, Juan ZENG, Li LI. Experimental Research on Treatment of Copper-Containing Acidic Wastewater in Hunan Province for Reutilization[J]. Mining and Metallurgical Engineering, 2023 , 43 (2) : 125 -129 . DOI: 10.3969/j.issn.0253-6099.2023.02.028
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Year 2023 volume 43 Issue 2
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Article Info
doi: 10.3969/j.issn.0253-6099.2023.02.028
  • Receive Date：2022-11-01
  • Online Date：2026-03-05
  • Published：2023-04-01
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  • Received：2022-11-01
Affiliations
    1.Shuikoushan Nonferrous Metals Co Ltd, Hengyang 421513, Hunan, China
    2.Changsha Research Institute of Mining and Metallurgy Co Ltd, Changsha 410012, Hunan, China
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https://castjournals.cast.org.cn/joweb/kygczz/EN/10.3969/j.issn.0253-6099.2023.02.028
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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