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Acidic mine drainage (AMD) containing high concentrations of heavy metal ions such as Fe2+ and Mn2+ was treated by a freezing method utilizing the purification effect of ice crystals. The process parameters for removing Fe2+ and Mn2+ from simulated AMD via the freezing method were optimized through single-factor and orthogonal experiments, and the optimal conditions were determined (for Fe2+: freezing temperature of -12℃, initial concentration of 0.9mg/L, freezing radius of 4.25cm; for Mn2+: freezing temperature of -6℃, initial concentration of 1.2mg/L, freezing radius of 5.00cm). The optimized process was then applied to treat actual AMD. The results showed that the removal rates of Fe2+ and Mn2+ from the actual AMD reached 60% and 59%, respectively, which confirmed the effectiveness of the technology. Furthermore, barley seeds and seedlings were used as model plants to evaluate the phytotoxicity of the AMD before and after treatment. The results indicated that, compared with the untreated AMD, the treated AMD did not inhibit the germination of barley seeds or the growth of barley seedlings. This study confirmed that the freezing method can not only effectively remove heavy metal pollutants from AMD but also significantly reduce its biotoxicity.

, authors=Yue WANG1, Rong-yu DUAN2, Nan SANG1, 2, Guang-ke LI2, *, authorsList=Yue WANG, Rong-yu DUAN, Nan SANG, Guang-ke LI, authorCompany=null, correspAuthors=Guang-ke LI, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1314923023073894832, articleId=1314923022537023918, tenantId=1146029695717560320, journalId=1234093305789726721, language=CN, title=煤矿矿井水中Fe2+、Mn2+在冷冻条件下的迁移规律及植物毒性, columnId=1234106386565624579, journalTitle=中国环境科学, columnName=水污染与控制, runingTitle=null, highlight=null, articleAbstract=

含有高浓度的Fe2+、Mn2+等重金属离子的酸性煤矿矿井水(AMD)利用冰晶净化效应的冷冻法来处理.AMD通过单因素与正交实验,优化了冷冻法去除模拟AMD中Fe2+与Mn2+的工艺参数,并确定了其最佳条件(Fe2+:冷冻温度为-12℃、初始浓度为0.9mg/L、冷冻半径为4.25cm;Mn2+:冷冻温度-6℃、初始浓度1.2mg/L、冷冻半径5.00cm),将优化工艺应用于实际AMD处理.结果表明,实际AMD中Fe2+和Mn2+的去除率分别达到60%和59%,证实了该技术的有效性.此外,我们使用大麦种子和幼苗作为模型植物,对处理前后AMD的植物毒性进行了评估.结果表明,与未处理的AMD相比,处理后的AMD未抑制大麦种子的发芽和大麦幼苗的生长.本研究证实,冷冻法不仅能有效去除AMD中的重金属污染物,还能显著消减其生物毒性.

, authors=王悦1, 段蓉宇2, 桑楠1, 2, 李广科2, *, authorsList=王悦, 段蓉宇, 桑楠, 李广科, authorCompany=null, correspAuthors=李广科, authorNote=

王悦(1992-),女,山西清徐人,副教授,博士,主要研究方向为环境与生态毒理学.发表论文10余篇.

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王悦(1992-),女,山西清徐人,副教授,博士,主要研究方向为环境与生态毒理学.发表论文10余篇.

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王悦(1992-),女,山西清徐人,副教授,博士,主要研究方向为环境与生态毒理学.发表论文10余篇.

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煤矿矿井水中Fe2+、Mn2+在冷冻条件下的迁移规律及植物毒性
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王悦 1 , 段蓉宇 2 , 桑楠 1, 2 , 李广科 2, *
中国环境科学 | 水污染与控制 2026,46(3): 1376-1386
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中国环境科学 |水污染与控制 2026 , 46 (3) : 1376 -1386
煤矿矿井水中Fe2+、Mn2+在冷冻条件下的迁移规律及植物毒性
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王悦1, 段蓉宇2, 桑楠1, 2, 李广科2, *
作者信息
  • 1.山西能源学院资源与环境工程系,山西 太原 030604
  • 2.山西大学环境与资源学院,山西 太原 030031
通讯作者:
* 责任作者,教授,
作者简介:

王悦(1992-),女,山西清徐人,副教授,博士,主要研究方向为环境与生态毒理学.发表论文10余篇.

Migration patterns of Fe2+ and Mn2+ in coal mine water under freezing conditions and their phytotoxicity
Yue WANG1, Rong-yu DUAN2, Nan SANG1, 2, Guang-ke LI2, *
Affiliations
  • 1.Department of Resources and Environmental Engineering, Shanxi Institute of Energy, Taiyuan 030604, China
  • 2.School of Environment and Resources, Shanxi University, Taiyuan 030031, China
出版时间: 2026-03-20
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含有高浓度的Fe2+、Mn2+等重金属离子的酸性煤矿矿井水(AMD)利用冰晶净化效应的冷冻法来处理.AMD通过单因素与正交实验,优化了冷冻法去除模拟AMD中Fe2+与Mn2+的工艺参数,并确定了其最佳条件(Fe2+:冷冻温度为-12℃、初始浓度为0.9mg/L、冷冻半径为4.25cm;Mn2+:冷冻温度-6℃、初始浓度1.2mg/L、冷冻半径5.00cm),将优化工艺应用于实际AMD处理.结果表明,实际AMD中Fe2+和Mn2+的去除率分别达到60%和59%,证实了该技术的有效性.此外,我们使用大麦种子和幼苗作为模型植物,对处理前后AMD的植物毒性进行了评估.结果表明,与未处理的AMD相比,处理后的AMD未抑制大麦种子的发芽和大麦幼苗的生长.本研究证实,冷冻法不仅能有效去除AMD中的重金属污染物,还能显著消减其生物毒性.

铁离子  /  锰离子  /  酸性煤矿矿井水  /  植物毒性

Acidic mine drainage (AMD) containing high concentrations of heavy metal ions such as Fe2+ and Mn2+ was treated by a freezing method utilizing the purification effect of ice crystals. The process parameters for removing Fe2+ and Mn2+ from simulated AMD via the freezing method were optimized through single-factor and orthogonal experiments, and the optimal conditions were determined (for Fe2+: freezing temperature of -12℃, initial concentration of 0.9mg/L, freezing radius of 4.25cm; for Mn2+: freezing temperature of -6℃, initial concentration of 1.2mg/L, freezing radius of 5.00cm). The optimized process was then applied to treat actual AMD. The results showed that the removal rates of Fe2+ and Mn2+ from the actual AMD reached 60% and 59%, respectively, which confirmed the effectiveness of the technology. Furthermore, barley seeds and seedlings were used as model plants to evaluate the phytotoxicity of the AMD before and after treatment. The results indicated that, compared with the untreated AMD, the treated AMD did not inhibit the germination of barley seeds or the growth of barley seedlings. This study confirmed that the freezing method can not only effectively remove heavy metal pollutants from AMD but also significantly reduce its biotoxicity.

iron ions  /  manganese ions  /  acidic coal mine water  /  phytotoxicity
王悦, 段蓉宇, 桑楠, 李广科. 煤矿矿井水中Fe2+、Mn2+在冷冻条件下的迁移规律及植物毒性. 中国环境科学, 2026 , 46 (3) : 1376 -1386 .
Yue WANG, Rong-yu DUAN, Nan SANG, Guang-ke LI. Migration patterns of Fe2+ and Mn2+ in coal mine water under freezing conditions and their phytotoxicity[J]. China Environmental Science, 2026 , 46 (3) : 1376 -1386 .
  • 国家自然科学基金(22406119; 22276117)
  • 山西省基础研究计划资助项目(202403021222324)
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  • 接收时间:2025-08-05
  • 首发时间:2026-10-08
  • 出版时间:2026-03-20
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  • 收稿日期:2025-08-05
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国家自然科学基金(22406119; 22276117)
山西省基础研究计划资助项目(202403021222324)
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    1.山西能源学院资源与环境工程系,山西 太原 030604
    2.山西大学环境与资源学院,山西 太原 030031

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2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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