首页 | 本学科首页   官方微博 | 高级检索  
     

改良剂-植物协同治理原地浸矿污染土壤的研究(英文)
引用本文:冯秀娟,朱易春,阎思诺,鄱洋,马彩云,高咪,张素贞. 改良剂-植物协同治理原地浸矿污染土壤的研究(英文)[J]. 农业科学与技术, 2014, 0(1): 63-70,78
作者姓名:冯秀娟  朱易春  阎思诺  鄱洋  马彩云  高咪  张素贞
作者单位:[1]北京城市学院,北京100083 [2]江西理工大学建筑与测绘学院,江西赣州341000
基金项目:国家自然科学基金( No.21067003,51364015);江西省自然科学基金(No.20114BAB203024);国家科技支撑计划(No.2012BAC11B07)
摘    要:改良剂与植物协同作用治理污染土壤,结果表明:植物种类对土壤中硝态氮浓度的变化影响非常显著,种植小麦的土壤中硝态氮浓度均从692.19 mg/kg降至100 mg/kg以下;当沸石粒径1~2 mm,改良剂与土壤比例为3:50时,种植小麦的土壤中硝态氮浓度降至43 mg/kg。改良剂种类对土壤中铵态氮浓度的变化影响非常显著,当沸石粒径2~3mm,改良剂与土壤比例为10:50,改良第15天铵态氮浓度由23 593.75 mg/kg降至3 300mg/kg。改良剂、植物对土壤中硫酸根主要表现为解吸作用,改良剂种类对土壤中硫酸根浓度的变化影响非常显著,用石灰石改良剂改良土壤第7天,土壤中的铵态氮浓度由370 mg/kg至900 mg/kg。

关 键 词:稀土原地浸矿  浸取剂硫酸铵  土壤污染  改良剂-植物协同  治理

Remediation of in-situ Leach Mining Contaminated Soil by Amendment-plant Synergism
Xiujuan FENG,Yichun ZHU,Sinuo YAN,Yang PO,Caiyun MA,Mi GAO,Suzhen ZHANG. Remediation of in-situ Leach Mining Contaminated Soil by Amendment-plant Synergism[J]. Agricultural Science & Technology, 2014, 0(1): 63-70,78
Authors:Xiujuan FENG  Yichun ZHU  Sinuo YAN  Yang PO  Caiyun MA  Mi GAO  Suzhen ZHANG
Affiliation:1. Beijing City College, Beijing 100083, China; 2. College of Architecture and Surveying, JiangXi University of Science and Technology, Ganzhou 341000, China)
Abstract:This study aimed to remediate in-situ leach mining contaminated soil by amendment-plant synergism. The results showed that plant species exhibited ex-tremely significant effects on the concentration of nitrate nitrogen; to be specific, the concentration of nitrate nitrogen in soil planted with wheat was reduced from 692.19 mg/kg to lower than 100 mg/kg; when the mass ratio of amendment to soil reached 3:50 and the amendment particle size was 1-2 mm, the concentration of nitrate ni-trogen in soil planted with wheat was reduced to 43 mg/kg. The amendment type exhibited extremely significant effects on the concentration of ammonium nitrogen; to be specific, when the mass ratio of amendment to soil reached 10:50, the concen-tration of ammonium nitrogen in soil added with 2-3 mm zeolite was reduced from 23 593.75 to 3 300 mg/kg on day 15. Amendments and plants mainly exhibited desorption performance for sulfate radical in soil, and the amendment type extreme-ly significantly affected the concentration of sulfate radical; to be specific, the con-centration of sulfate radical in soil added with limestone increased from 370 mg/kg to 900 mg/kg on day 7.
Keywords:In-situ leach mining of rare earth mine  Leaching reagent ammonia sul-fate  Soil contamination  Amendment-plant synergism  Remediation
本文献已被 CNKI 维普 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号