期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
镀锌层无铬钝化的研究进展 被引量:9
1
作者 康举 韩利华 梁英华 《上海化工》 CAS 2008年第6期18-22,共5页
综述了国内外镀锌层上各种不同无铬钝化的特点及其发展现状。指出随着环境保护要求的提高,用低毒或无毒的钝化剂取代铬酸盐钝化是镀锌层钝化的主要研究方向,尤其钼酸盐钝化、有机类钝化及有机类与无机盐混合钝化有着较好的应用前景。
关键词 无铬 钼酸盐 有机类钝化 镀锌层
下载PDF
Effects of 4 Types of Remediation Agents on Reducing Cd Contents in Soil and Rice on Cd-contaminated Farmland 被引量:1
2
作者 HU Qing-yun TANG You-gen +4 位作者 ZHANG Zhi-qiang LUO Ying ZHANG Xiao-yi XIAO Huan AO He-jun 《Agricultural Science & Technology》 CAS 2021年第3期7-12,共6页
A field experiment was carried out in Cd-contaminated rice fields in a county of Hengyang to explore the effects of different types of remediation agents on the contents of soil available Cd and rice Cd,and rice yield... A field experiment was carried out in Cd-contaminated rice fields in a county of Hengyang to explore the effects of different types of remediation agents on the contents of soil available Cd and rice Cd,and rice yield by using one rice variety Longliangyouhuazhan,and 4 kinds of remediation agents:DG foliar control agent,SMA microbial inoculant,XFJ organic fertilizer and LXM calcium-and silicon-based passivator as test materials.The results showed that compared with CK,after applying DG foliar control agent,soil available Cd content increased rather than decreased,whereas rice Cd content decreased,not reaching a significant level.When applied with SMA microbial inoculant,soil pH value,soil available Cd and rice Cd contents showed a downward then upward trend with the increase of its application rates.Between 3 levels of SMA treatments,the content of soil available Cd in SMA2 was the lowest,decreased by 8.59%in comparison with CK,contrarily,two other SMA treatments were increasing instead of decreasing in the content of soil available Cd.The application of XFJ organic fertilizer and LXM calcium-and silicon-based passivator increased soil pH value,and reduced soil available Cd and rice Cd contents;the contents of soil available Cd and rice Cd decreased with their application rates increasing.Compared with CK,XFJ3 reduced soil available Cd content by 9.40%,and significantly reduced rice Cd content by 57.28%.In LXM3 treatment,soil available Cd content reduced by 14.57%,rice Cd content was 71.57%lower than CK,reaching the lowest level.In general,LXM calcium-and silicon-based passivator had the best Cd reduction effect,with the optimal application amount of 6000 kg/hm^(2). 展开更多
关键词 RICE Remediation of Cd-contaminated farmland Foliar control agent Organic fertilizer Microbial inoculant Calcium-and silicon-based passivator Cd reduction effect
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部