检索结果-南通市图书馆

Influence of pyrolysis temperature on rice straw biochar properties and corresponding effects on dynamic changes in bispyribac-sodium adsorption and leaching behavior in soil

引用

Pedosphere 2023年第3期33卷 463-478页

作者： Pervinder kaur Neha SHARMA khushwinder kaur Department of Agronomy Punjab Agricultural UniversityLudhianaPunjab 141004(India) Department of Chemistry Punjab Agricultural UniversityLudhianaPunjab 141004(India) Department of Chemistry Panjab UniversityChandigarh 160014(India)

Bispyribac-sodium is a weakly acidic herbicide with high water solubility and is thus a potential source of groundwater *** the risk inherent to the use of this herbicide,this study assessed the impacts of rice straw(RS)and biochar amendments on the adsorption and leaching behavior of bispyribac-sodium in *** were produced from RS at different pyrolysis temperatures and characterized using various spectral *** straw had a surface area of 3.996×10^(4)m^(2)kg^(-1),which increased under pyrolysis;biochars prepared at 350 and 550℃(RS350 and RS550)in a closed furnace with limited oxygen supply had a surface area of 5.763×10^(4)and 6.890×10^(4)m^(2)kg^(-1),respectively,and biochar prepared by purging the pyroformer with N2(RSC)had the highest surface area of 12.173×10^(4)m^(2)kg^(-1).After amendment with RS and biochar,soil Freundlich adsorption capacity(KF ads)increased to varying extents in the order RSC>RS350>RS550,from 2.89×10^(3)to 29.57×10^(3)mg^(1-1)/nkg^(-1)L1/n,compared to1.55×10^(3)mg^(1-1)/nkg^(-1)L1/nin unamended *** variability in KF ads of bispyribac-sodium amongst the RS-and biochar-amended soils was dependent on the surface area of the *** desorption of bispyribac-sodium decreased in the RS-and biochar-amended soils and varied from90.45%to 95.20%in unamended soils and from 60.95%to 89.50%in amended *** adsorption and desorption of bispyribac-sodium varied significantly depending on its concentration and the type and application rate of soil *** leaching risk evaluation indices,viz.,modified leach index(***),leach index(LEACH),groundwater ubiquity score(GUS),Hornsby index(HI),leaching index(LIN),and pesticide leaching potential(PLP)index,were used to assess the susceptibility of groundwater to herbicide *** reduce the repetitive effects of common parameters in each index,a new index was developed by employing principal component analysis(PCA)to condense their infor

关键词： desorption Freundlich model groundwater contamination leaching potential leaching risk evaluation index pesticide soil amendment Temkin isotherm

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：