Remediation of cadmium-contaminated paddy field using soil washing method 2: Effects of washing on soil and rice

摘要：

We developed an on-site soil washing method using FeC13 to treat paddy soils contaminated with Cd. Washing substantially decreased soil levels of acid- soluble and manganese oxide-occluded Cd, while organically bound Cd was changed little. Although soil fertility properties (such as pH, exchangeable base, and available N and P) were affected by the soil washing treatment, the adverse effects were not crucial and could be corrected. Washing had no effect on rice growth and yield, and reduced the average Cd concentration in rice grains by about two-thirds compared to a control plot. These results confirmed the effectiveness of the soil-wash method in remediating Cd-contaminated paddy fields.

关键词： cadmium on-site soil washing paddy soil rice

作者: T. Karniya H. Takano T. Itou N. Sekiya K. Kondo T. Makino Y. Maejima

作者单位: Research & Development Center, Taiheiyo Cement Corp, Sakura, 285-8655, Japan Depertment of Environment Conservation, Nagano Agricultural Research Center, Suzaka, 382-0072, Japan Soil Environmental Division, National Institute for Agro-Environmental Sciences (NIAES), Tsukuba, 30

会议类型: 国际会议

会议名称: 第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)

会议地点: 北京

会议语种:英文

页码: 927-928

在线出版日期: 2007-07-15（万方平台首次上网日期，不代表论文的发表时间）