1.宁夏大学 生态环境学院,宁夏 银川 750021
2.宁夏大学 西北退化生态系统恢复与重建教育部重点实验室,宁夏 银川 750021
马进兰(2002—),女,硕士研究生,主要从事区域金属污染修复研究,(电子信箱)430203594@qq.com。
王莹(1990—),女,副教授,硕士研究生导师,博士,主要从事区域重金属污染防治研究,(电子信箱)wangying23424@163.com。
收稿:2024-11-17,
纸质出版:2026-03-15
移动端阅览
马进兰,张玲,陈星宇,等.化学淋洗法修复盐渍化Pb污染土壤[J].宁夏大学学报(自然科学版中英文),2026,47(2):177-184.
Ma Jinlan,Zhang Ling,Chen Xingyu,et al.Study on the remediation of lead pollution in salinized soil by chemical leaching method[J].Journal of Ningxia University(Natural Science Edition),2026,47(2):177-184.
马进兰,张玲,陈星宇,等.化学淋洗法修复盐渍化Pb污染土壤[J].宁夏大学学报(自然科学版中英文),2026,47(2):177-184. DOI: 10.20176/j.cnki.nxdz.20251211.
Ma Jinlan,Zhang Ling,Chen Xingyu,et al.Study on the remediation of lead pollution in salinized soil by chemical leaching method[J].Journal of Ningxia University(Natural Science Edition),2026,47(2):177-184. DOI: 10.20176/j.cnki.nxdz.20251211.
以宁夏典型农灌区镇河村农田土壤为研究对象,采用批量实验,结合土柱实验方法,研究淋洗剂种类、浓度、用量及淋洗时间对模拟Pb污染土壤中Pb去除率的影响;采用土柱模拟实验方法,研究淋洗法修复不同Pb质量比和不同程度盐渍化Pb污染土壤。结果表明,乙二胺四乙酸二钠(EDTA-2Na)溶液对盐渍化土壤中Pb的去除率最高,且在1 g土壤中EDTA-2Na溶液的用量为10 mL、
c
(EDTA-2Na)=0.40 mol/L、淋洗6 h条件下,土壤中Pb的去除率最高;EDTA-2Na溶液对Pb质量比高的盐渍化土壤表层中Pb的去除率(67.9%),明显高于Pb质量比低的土壤;经EDTA-2Na溶液淋洗后,相比初始土壤,低盐渍化土壤中盐的质量比增加,高盐渍化土壤中盐的质量比降低;增加淋洗次数虽提高了土壤中Pb的去除率(84.9%),但增加了土壤的盐渍化程度。在最佳条件下,使用EDTA-2Na溶液淋洗盐渍化Pb污染土壤,可有效去除土壤中的Pb,但要考虑对土壤盐渍化程度的影响。
This study focuses on the farmland soil of Zhenhe Village, a typical agricultural irrigation area in Ningxia. Using a combination of batch experiments and soil column experiments, it investigates the effects of the type, concentration, dosage, and leaching duration of leaching agents on the removal rate of Pb in simulated Pb-contaminated soil. Soil column simulation experiments were conducted to study the remediation of Pb-contaminated soils with different Pb contents and salinization levels using the leaching method. The results show that disodium ethylenediaminetetraacetate (EDTA-2Na) solution achieves the highest Pb removal rate in saline soils. For 1 g of soil, under the conditions of 10 mL of EDTA-2Na solution with a concentration of 0.4 mol/L leached for 6 hours, the Pb removal rate in the soil is maximized. The removal rate of Pb using EDTA-2Na solution is significantly higher in high-Pb saline soils (67.9%) compared to soils with low Pb content. After EDTA-2Na leaching, the total salt content in low-salinity soils increases compared to the initial soil, whereas in high-salinity soils, the total salt content decreases. Although increasing the number of leaching treatments improves the Pb removal rate in soil (84.9%), it also increases soil salinization. Under optimal conditions, leaching saline Pb-contaminated soil with EDTA-2Na solution can effectively remove Pb from the soil; however, the impact on soil salinization must be taken into account.
郭洁芸 , 许馨丹 , 万馨媛 , 等 . 大面积农田土壤中重金属污染的空间分布及生态风险定量快速初步评价 [J]. 宁夏大学学报(自然科学版) , 2026 , 47 ( 1 ): 90 - 96 .
XU Chao , XIANG Qian , ZHU Qihong , et al . Effect of controlled-release urea on heavy metal mobility in a multimetal-contaminated soil [J]. Pedosphere , 2020 , 30 ( 2 ): 263 - 271 .
WANG Xu , GAO Ping , LI Daping , et al . Risk assessment for and microbial community changes in farmland soil contaminated with heavy metals and metalloids [J]. Ecotoxicology and Environmental Safety , 2019 , 185 : 109685 . DOI: 10.1016/j.ecoenv.2019.109685 http://dx.doi.org/10.1016/j.ecoenv.2019.109685 .
张广庆 . 滨海重盐渍化地区重金属污染土壤钝化修复效果及评价 [D]. 天津 : 天津大学 , 2020 .
陈世宝 , 王萌 , 李杉杉 , 等 . 中国农田土壤重金属污染防治现状与问题思考 [J]. 地学前缘 , 2019 , 26 ( 6 ): 35 - 41 .
张祎曼 . 浅析中国西北地区土壤盐渍化现状及修复对策 [J]. 当代化工研究 , 2018 ( 2 ): 26 - 27 .
ZHANG Yufei , LI Yongping , SUN Jianlin , et al . Optimizing water resources allocation and soil salinity control for supporting agricultural and environmental sustainable development in Central Asia [J]. Science of the Total Environment , 2020 , 704 : 135281 . DOI: 10 http://dx.doi.org/10 .
1016/ j.scitotenv . 2019 . 135281 .
PENG Min , ZHAO Chuangdong , MA Honghong , et al . Heavy metal and Pb isotopic compositions of soil and maize from a major agricultural area in Northeast China: contamination assessment and source apportionment [J]. Journal of Geochemical Exploration , 2020 , 208 : 106403 . DOI: 10.1016/j.gexplo.2019.106403 http://dx.doi.org/10.1016/j.gexplo.2019.106403 .
冯保清 , 崔静 , 吴迪 , 等 . 浅谈西北灌区耕地盐渍化化成因及对策 [J]. 农村水利水电 , 2019 ( 9 ): 43 - 46 .
郭军康 , 李艳萍 , 李永涛 , 等 . 采用草酸和乙二胺四乙酸去除农田土壤中砷和镉污染 [J]. 环境工程 , 2019 , 37 ( 5 ): 70 - 75 .
黄川 , 李柳 , 黄珊 , 等 . 重金属污染土壤的草酸和乙二胺四乙酸混合淋洗研究 [J]. 环境工程学报 , 2014 , 8 ( 8 ): 3480 - 3486 .
王亚男 , 刘冬勤 , 杨伟卫 , 等 . 重金属污染土壤修复淋洗剂研究进展 [J]. 四川环境 , 2023 , 42 ( 1 ): 315 - 320 .
WEI Hei , NIU Yaolan , ZHU Hui , et al . Remediation of zinc-contaminated soils by using the two-step washing with citric acid and water-soluble chitosan [J]. Chemosphere , 2021 , 282 : 131092 . DOI: 10 http://dx.doi.org/10 .
1016/ j.chemosphere . 2021 . 131092 .
武迎飞 . 乙二胺四乙酸淋洗修复Pb、Cd重金属污染土壤 [J]. 商丘师范学院学报 , 2018 , 34 ( 12 ): 64 - 66 .
曹斌 . 淋洗法修复某铅蓄电池厂退役场地重金属污染土壤工程实施探讨 [J]. 科技创新与应用 , 2018 ( 8 ): 75 - 77 .
LIU Hongwei , KHAN M Y , CARVALHAIS L C , et al . Soil amendments with ethylene precursor alleviate negative impacts of salinity on soil microbial properties and productivity [J]. Scientific Reports , 2019 , 9 : 6892 . DOI: 10.1038/s41598-019-43305-4 http://dx.doi.org/10.1038/s41598-019-43305-4 .
ZHAO Yonggan , WANG Shujuan , Li Yan , et al . Effects of straw layer and flue gas desulfurization gypsum treatments on soil salinity and sodicity in relation to sunflower yield [J]. Geoderma , 2019 , 352 : 13 - 21 .
郭伟 , 张焕祯 , 王明超 , 等 . 淋洗法修复重金属污染土壤研究进展 [C] //《环境工程》编委会 , 工业建筑杂志社有限公司.《环境工程》2018年全国学术年会论文集(下册) . 北京 , 2018 .
孙玉焕 , 宋淑敏 , 张亮 . 复合淋洗剂柱淋洗法修复工业废弃地铬污染土壤 [J]. 环境污染与防治 , 2017 , 39 ( 2 ): 191 - 201 .
张玲 , 马进兰 , 李晓楠 , 等 . 天然水体中共存离子对重金属Pb 2+ 在Al 2 O 3 上吸附行为的影响 [J]. 宁夏大学学报(自然科学版中英文) , 2025 , 46 ( 2 ): 197 - 203 .
周坤 , 冯冬 , 常星竹 , 等 . 化学淋洗法修复重金属锌污染土壤效果研究 [J]. 当代化工研究 , 2023 ( 17 ): 72 - 74 .
姚振楠 , 钮恺之 , 李明 , 等 . 化学淋洗法修复土壤中Cd、Pb、As的工程研究 [J]. 广东化工 , 2021 , 48 ( 12 ): 154 - 156 .
刘磊 , 胡少平 , 陈英旭 , 等 . 淋洗法修复化工厂遗留地重金属污染的可行性 [J]. 应用生态学报 , 2010 , 21 ( 6 ): 1537 - 1541 .
刘霞 , 王建涛 , 张萌 , 等 . 螯合剂和生物表面活性剂对Cu、Pb污染塿土的淋洗修复 [J]. 环境科学 , 2013 , 34 ( 4 ): 1590 - 1597 .
胡造时 , 莫创荣 , 覃利梅 , 等 . 无患子皂苷对土壤重金属Cr的淋洗修复 [J]. 广西大学学报(自然科学版) , 2016 , 41 ( 5 ): 1683 - 1688 .
韩廿 . 螯合剂对植物修复镉砷复合污染农田的影响 [D]. 北京 : 中国农业科学院 , 2020 .
吴刚 . 可降解螯合剂淋洗修复受重金属污染土壤的研究 [D]. 扬州 : 扬州大学 , 2022 .
0
浏览量
0
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010602201714号