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Natural chalcopyrite (CuFeS2) was used as a catalyst to activate persulfate (PS) for butyl xanthate wastewater treatment. The influences of CuFeS2 dosage, PS dosage and initial pH of solution on the removal rate of butyl xanthate in CuFeS2/PS system were investigated, and the recyclability of CuFeS2 was also evaluated. The results show that CuFeS2 can significantly activate PS. After 10 min reaction with initial pH of 3, CuFeS2 dosage of 4 g/L and PS dosage of 5 mmol/L, the removal rate of butyl xanthate reached 99.23%, while the removal rate of total organic carbon (TOC) was only 31.29%. After the reaction time was extended to 60 min, the TOC removal rate reached 68.31%, and CuFeS2 still sustained good catalytic activity after being recycled for five times. The UV-Visible absorption spectra of butyl xanthate wastewater degradation showed that butyl xanthate was initially oxidized to alcohols, then decomposed and mineralized to carbon dioxide and water. X-ray diffraction and fourier transform infra-red spectroscopy analysis showed that CuFeS2 reacted with PS without surface passivation, thus could be reused. A free radical quenching test and an electron spin resonance analysis showed that the removal mechanism of xanthate included free radical degradation and CuFeS2 physisorption, in which sulfate radical (SO4-·) and hydroxyl radical (HO·) were the main active substances to promote xanthate degradation, and the SO4-· played a dominant role.

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以天然黄铜矿(CuFeS2)作为催化剂活化过硫酸盐(PS)处理丁基黄药废水,考察了CuFeS2用量、PS用量和溶液初始pH值对CuFeS2/PS体系中丁基黄药去除率的影响,并对CuFeS2可重复利用性进行了评价。结果表明,CuFeS2对PS有显著的活化作用,在CuFeS2用量4 g/L、PS用量5 mmol/L、溶液初始pH=3条件下反应10 min,丁基黄药去除率达99.23%,TOC去除率仅31.29%;继续增加反应时间至60 min,TOC去除率达到68.31%,且CuFeS2重复利用5次后仍有较好的催化活性。丁基黄药废水降解过程的紫外-可见吸收光谱研究结果表明,丁基黄药首先被氧化为醇类有机物,后被分解矿化为二氧化碳和水。XRD和FTIR分析结果表明,CuFeS2与PS反应后表面没有发生钝化,可重复利用。自由基猝灭试验和电子自旋共振分析(ESR)结果表明,黄药的去除机理包括自由基的化学降解作用和CuFeS2的物理吸附作用,其中,硫酸根自由基(SO4-·)和羟基自由基(HO·)是促使黄药降解的主要活性物质,且SO4-·起主导作用。

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刘润清(1979—),女,山西长治人,博士,教授,主要研究方向为硫化矿浮选工艺、药剂与理论。
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文晓飞(1997—),男,陕西宝鸡人,硕士研究生,主要研究方向为硫化矿浮选分离、二次资源回收利用等。

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文晓飞(1997—),男,陕西宝鸡人,硕士研究生,主要研究方向为硫化矿浮选分离、二次资源回收利用等。

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文晓飞(1997—),男,陕西宝鸡人,硕士研究生,主要研究方向为硫化矿浮选分离、二次资源回收利用等。

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黄铜矿活化过硫酸盐处理丁基黄药废水的研究
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文晓飞 , 吴美荣 , 翟一澎 , 刘润清
矿冶工程杂志 | 选矿 2023,43(3): 61-66
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矿冶工程杂志 | 选矿 2023, 43(3): 61-66
黄铜矿活化过硫酸盐处理丁基黄药废水的研究
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文晓飞, 吴美荣, 翟一澎, 刘润清
作者信息
  • 中南大学 资源加工与生物工程学院,湖南 长沙 410083
  • 文晓飞(1997—),男,陕西宝鸡人,硕士研究生,主要研究方向为硫化矿浮选分离、二次资源回收利用等。

通讯作者:

刘润清(1979—),女,山西长治人,博士,教授,主要研究方向为硫化矿浮选工艺、药剂与理论。
Treatment of Butyl Xanthate Wastewater with Chalcopyrite Activated Persulfate
Xiaofei WEN, Meirong WU, Yipeng ZHAI, Runqing LIU
Affiliations
  • School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, Hunan, China
出版时间: 2023-06-01 doi: 10.3969/j.issn.0253-6099.2023.03.014
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以天然黄铜矿(CuFeS2)作为催化剂活化过硫酸盐(PS)处理丁基黄药废水,考察了CuFeS2用量、PS用量和溶液初始pH值对CuFeS2/PS体系中丁基黄药去除率的影响,并对CuFeS2可重复利用性进行了评价。结果表明,CuFeS2对PS有显著的活化作用,在CuFeS2用量4 g/L、PS用量5 mmol/L、溶液初始pH=3条件下反应10 min,丁基黄药去除率达99.23%,TOC去除率仅31.29%;继续增加反应时间至60 min,TOC去除率达到68.31%,且CuFeS2重复利用5次后仍有较好的催化活性。丁基黄药废水降解过程的紫外-可见吸收光谱研究结果表明,丁基黄药首先被氧化为醇类有机物,后被分解矿化为二氧化碳和水。XRD和FTIR分析结果表明,CuFeS2与PS反应后表面没有发生钝化,可重复利用。自由基猝灭试验和电子自旋共振分析(ESR)结果表明,黄药的去除机理包括自由基的化学降解作用和CuFeS2的物理吸附作用,其中,硫酸根自由基(SO4-·)和羟基自由基(HO·)是促使黄药降解的主要活性物质,且SO4-·起主导作用。

黄铜矿  /  过硫酸盐  /  丁基黄药  /  活化  /  自由基  /  吸附  /  废水处理

Natural chalcopyrite (CuFeS2) was used as a catalyst to activate persulfate (PS) for butyl xanthate wastewater treatment. The influences of CuFeS2 dosage, PS dosage and initial pH of solution on the removal rate of butyl xanthate in CuFeS2/PS system were investigated, and the recyclability of CuFeS2 was also evaluated. The results show that CuFeS2 can significantly activate PS. After 10 min reaction with initial pH of 3, CuFeS2 dosage of 4 g/L and PS dosage of 5 mmol/L, the removal rate of butyl xanthate reached 99.23%, while the removal rate of total organic carbon (TOC) was only 31.29%. After the reaction time was extended to 60 min, the TOC removal rate reached 68.31%, and CuFeS2 still sustained good catalytic activity after being recycled for five times. The UV-Visible absorption spectra of butyl xanthate wastewater degradation showed that butyl xanthate was initially oxidized to alcohols, then decomposed and mineralized to carbon dioxide and water. X-ray diffraction and fourier transform infra-red spectroscopy analysis showed that CuFeS2 reacted with PS without surface passivation, thus could be reused. A free radical quenching test and an electron spin resonance analysis showed that the removal mechanism of xanthate included free radical degradation and CuFeS2 physisorption, in which sulfate radical (SO4-·) and hydroxyl radical (HO·) were the main active substances to promote xanthate degradation, and the SO4-· played a dominant role.

chalcopyrite  /  persulfate  /  butyl xanthate  /  activation  /  free radical  /  adsorption  /  wastewater treatment
文晓飞, 吴美荣, 翟一澎, 刘润清. 黄铜矿活化过硫酸盐处理丁基黄药废水的研究. 矿冶工程杂志, 2023 , 43 (3) : 61 -66 . DOI: 10.3969/j.issn.0253-6099.2023.03.014
Xiaofei WEN, Meirong WU, Yipeng ZHAI, Runqing LIU. Treatment of Butyl Xanthate Wastewater with Chalcopyrite Activated Persulfate[J]. Mining and Metallurgical Engineering, 2023 , 43 (3) : 61 -66 . DOI: 10.3969/j.issn.0253-6099.2023.03.014
  • 湖南省自然科学基金(2020JJ5736)
  • 国家自然科学基金重点项目(51634009)
2023年第43卷第3期
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doi: 10.3969/j.issn.0253-6099.2023.03.014
  • 接收时间:2022-12-12
  • 首发时间:2026-03-05
  • 出版时间:2023-06-01
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  • 收稿日期:2022-12-12
基金
湖南省自然科学基金(2020JJ5736)
国家自然科学基金重点项目(51634009)
作者信息
    中南大学 资源加工与生物工程学院,湖南 长沙 410083

通讯作者:

刘润清(1979—),女,山西长治人,博士,教授,主要研究方向为硫化矿浮选工艺、药剂与理论。
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

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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