地学前缘 ›› 2019, Vol. 26 ›› Issue (6): 89-94.DOI: 10.13745/j.esf.sf.2019.10.4

• 污染土壤修复 • 上一篇    下一篇

两种有机废弃物对钼矿区农田污染土壤的修复效果研究

王小庆，曲洋，王国峰，田文杰   

  1. 1. 洛阳理工学院 环境工程与化学学院, 河南 洛阳 471023
    2. 河南省土壤重金属污染修复工程技术研究中心, 河南 洛阳 471023
    3. 洛阳市环境监测站, 河南 洛阳 471021
  • 收稿日期:2019-06-12 修回日期:2019-09-23 出版日期:2019-11-30 发布日期:2019-11-30
  • 通信作者: 田文杰(1971—)，男，副教授，主要从事土壤污染防治研究。
  • 作者简介:王小庆(1979—)，女，副教授，研究方为土壤重污染的风险评价及防治。E-mail：xiaoqingwang@lit.edu.cn
  • 基金资助:
    国家自然科学基金青年基金项目(41701358)；河南省科技厅科技攻关项目(162102310112)；河南省高等学校青年骨干教师培养计划项目(2017GGJS-158)

Molybdenum immobilization efficiency of two kinds of organic waste materials for molybdenum contaminated agricultural soils

WANG Xiaoqing，QU Yang，WANG Guofeng，TIAN Wenjie   

  1. 1. School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, Luoyang 471023, China
    2. Henan Provincial Engineering Technology Center of Remediation and Prevention for Heavy Metal Pollution in Soil, Luoyang 471023, China
    3. Luoyang Environmental Monitoring Station, Luoyang 471021, China
  • Received:2019-06-12 Revised:2019-09-23 Online:2019-11-30 Published:2019-11-30
  • Supported by:
     

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摘要： 选取城市污水处理厂污泥和有机肥两种有机废弃物作为修复剂，通过原位稳定化培养和植物盆栽实验，研究不同修复剂的添加对土壤中有效态钼含量及植物体内钼累积量的影响，比较两种修复剂对于钼污染土壤的修复效果。结果表明：经过60 d的稳定化培养后，污泥和有机肥两种有机废弃物均能降低土壤中有效态钼含量，但降低效果不很显著，有机肥的稳定化修复效果略优于污泥；两种废弃物的施入，能提高紫花苜蓿和黑麦草地上部位生物量同时降低其对钼的累积量。

 

关键词: 土壤, 钼, 稳定化, 污泥, 有机肥

Abstract: The aim of this study was to find potential ways of immobilization or remediation of molybdenum (Mo) contaminated agricultural soils. We employed industrial by-products including include biosolid and manure as amendments for Mo contaminated soils in the mining area. We evaluated the effectiveness efficiency of the two amendments on Mo immobilization by measuring the amount of extractable Mo in soils and Mo uptake by plants. The results demonstrated that, after 60 days of incubation, both amendments decreased the extractability of Mo in contaminated soils and demonstrated Mo immobilization efficacy. The decrease, however, was not significant compared to the control treatment, with manure performing better than biosolid. Both biosolid and manure could decrease Mo uptake by the shoots of alfalfa and ryegrass while increase their biomass at the same time. Therefore, we recommended that, for Mo contaminated soils remediation, the two by-products used in this study can each be applied alone or used in combination with other inorganic amendments to treat light to moderately Mo-contaminated soils.

Key words: soil, molybdenum, immobilization, biosolid, manure

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