| 两种有机废弃物对钼矿区农田污染土壤的修复效果研究 |
| |
| 引用本文： | 王小庆,曲洋,王国峰,田文杰.两种有机废弃物对钼矿区农田污染土壤的修复效果研究[J].地学前缘,2019,26(6):89-94. |
| |
| 作者姓名： | 王小庆 曲洋 王国峰 田文杰 |
| |
| 作者单位： | 洛阳理工学院环境工程与化学学院,河南洛阳471023;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;洛阳市环境监测站,河南洛阳471021 |
| |
| 基金项目： | 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) |
| |
| 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 |
| 收稿时间： | 2019-06-12 |
Molybdenum immobilization efficiency of two kinds of organic waste materials for molybdenum contaminated agricultural soils |
| |
| WANG Xiaoqing,QU Yang,WANG Guofeng,TIAN Wenjie.Molybdenum immobilization efficiency of two kinds of organic waste materials for molybdenum contaminated agricultural soils[J].Earth Science Frontiers,2019,26(6):89-94. |
| |
| Authors: | WANG Xiaoqing QU Yang WANG Guofeng TIAN Wenjie |
| |
| 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. |
| |
| Keywords: | soil molybdenum immobilization biosolid manure |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《地学前缘》浏览原始摘要信息 |
| 点击此处可从《地学前缘》下载免费的PDF全文 |
|
