Use of Soil Amendments to Reduce Nitrogen, Phosphorus and Heavy Metal Availability

I. Phillips
{"title":"Use of Soil Amendments to Reduce Nitrogen, Phosphorus and Heavy Metal Availability","authors":"I. Phillips","doi":"10.1080/10588339891334221","DOIUrl":null,"url":null,"abstract":"The primary objectives of this study were to determine (1) the exchange characteristics of various soil amendments using a range of salt solutions, (2) the effect of selected soil amendments on heavy metal (Cu2+, Pb2+, and Zn2+) availability, and (3) the effect of selected soil amendments on NH4 + and P availability. The CEC of zeolite and red mud obtained using solutions of 0.1 M BaCl2 and 0.1 M BaCl2/NH4Cl were significantly lower than values obtained using 1 M KCl and 1 M NH4Cl. The higher CEC obtained with monovalent cations indicated that larger divalent cations could not enter the mineralogical framework of zeolite and red mud, and, consequently, a number of exchange sites were only accessible to the smaller monovalent cations. These findings suggest that 1 M KCl and 1 M NH4NO3 should be used as the extracting solutions to obtain the best estimation of CEC and ECEC of red mud and zeolite. The ability of red mud, zeolite, and calcium phosphate (Ca-P), mixed at rates of 0%, 5%, 10%, and 20% (w/w), to ...","PeriodicalId":433778,"journal":{"name":"Journal of Soil Contamination","volume":"1067 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1998-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"61","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Soil Contamination","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/10588339891334221","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 61

Abstract

The primary objectives of this study were to determine (1) the exchange characteristics of various soil amendments using a range of salt solutions, (2) the effect of selected soil amendments on heavy metal (Cu2+, Pb2+, and Zn2+) availability, and (3) the effect of selected soil amendments on NH4 + and P availability. The CEC of zeolite and red mud obtained using solutions of 0.1 M BaCl2 and 0.1 M BaCl2/NH4Cl were significantly lower than values obtained using 1 M KCl and 1 M NH4Cl. The higher CEC obtained with monovalent cations indicated that larger divalent cations could not enter the mineralogical framework of zeolite and red mud, and, consequently, a number of exchange sites were only accessible to the smaller monovalent cations. These findings suggest that 1 M KCl and 1 M NH4NO3 should be used as the extracting solutions to obtain the best estimation of CEC and ECEC of red mud and zeolite. The ability of red mud, zeolite, and calcium phosphate (Ca-P), mixed at rates of 0%, 5%, 10%, and 20% (w/w), to ...
利用土壤改良剂降低氮、磷和重金属的有效性
本研究的主要目的是确定(1)使用一系列盐溶液的各种土壤改良剂的交换特性,(2)选定的土壤改良剂对重金属(Cu2+, Pb2+和Zn2+)有效性的影响,以及(3)选定的土壤改良剂对NH4 +和P有效性的影响。使用0.1 M BaCl2和0.1 M BaCl2/NH4Cl溶液得到的沸石和赤泥的CEC显著低于使用1 M KCl和1 M NH4Cl得到的值。一价阳离子获得的较高CEC表明,较大的二价阳离子不能进入沸石和赤泥的矿物框架,因此,一些交换位点只有较小的一价阳离子才能进入。以上结果表明,选用1 M KCl和1 M NH4NO3作为萃取溶液可获得赤泥和沸石的CEC和ECEC的最佳估计。赤泥、沸石和磷酸钙(Ca-P)以0%、5%、10%和20% (w/w)的比例混合,对…
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信