【摘 要】
:
The effects of immobilization remediation of Cd-contaminated soils using sepiolite on soil pH,enzyme activities and microbial communities,TCLP-Cd (toxicity char
【机 构】
:
Key Laboratory of Original Environmental Quality Safety, Ministry of Agriculture, Tianjin 300191, Ch
论文部分内容阅读
The effects of immobilization remediation of Cd-contaminated soils using sepiolite on soil pH,enzyme activities and microbial communities,TCLP-Cd (toxicity characteristic leaching procedure-Cd) concentration,and spinach (Spinacia oleracea) growth and Cd uptake and accumulation were investigated.Results showed that the addition of sepiolite could increase soil pH,while the TCLP-Cd concentration in soil was decreased with increasing sepiolite.The changes of soil enzyme activities and bacteria number indicated that a certain metabolic recovery occurred after the sepiolite treatments,and spinach shoot biomass increased by 58.5%-65.5% in comparison with the control group when the concentration of sepiolite was ≤ 10 g/kg.However,the Cd concentrations in the shoots and roots of spinach decreased with an increase in the rate of sepiolite,experiencing 38.4%-59.1% and 12.6%-43.6% reduction,respectively,in contrast to the control.The results indicated that sepiolite has the potential for success on a field scale in reducing Cd entry into the food chain.
其他文献
请下载后查看,本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
BIM技术是建筑行业在信息时代随着计算机科技进步所衍生的工程运作新技术与新方法,其在欧美及日本等国家迅速发展,但BIM技术引入我国时间较短,目前还未被广泛使用.本文通过阐
In this study,the amounts of odorous carbonyl compounds (OCCs) including acetaldehyde (Acet-A),propionaldehyde (Pron-A),butylaldehyde (Buty-A),iso-valeric aldeh
本文阐述了我们应根据高中生的心理特点,结合教学内容,通过各种有效的方法、手段充分培养学生的积极情感,使他们带着优良的情感投入到学习中来,更好的学习文化知识。
基于位置的服务(LBS,Location based service)是随着移动通信技术、GIS、定位技术等发展成熟而出现的,位置服务是通过通信网络获得终端用户的位置信息。在GIS的支持下,为用户
Paddy fields in mining areas are usually co-contaminated by a cocktail of mixed toxic heavy metals (e.g.,Cd and Pb in Pb/Zn mines).However,previous studies on r
在国外风险投资的实践中。民间资本已经成为风险资本的主要来源,比如美国的养老基金近年来一直是风险资本的最大组成部分。另一方面,随着民间天使投资人队伍的不断出现和壮大,天
化学平衡图像是高考中常见的一种题型,掌握策略方法,形成图像基本解题规律,据有一定的考点突破价值。
首先介绍了运营商在EPC中引入SDN/NFV驱动力的原因,然后分析了基于SDN/NFV的EPC架构演进以及引入SDN/NVF后EPC的网络管理。
2016年,永州市紧扣落实企业主体责任这一“牛鼻子”,以“零事故”为最高目标,以安全生产“监管执法年”为主线,强化措施,创新机制,树立了一批安全生产主体责任落实标杆企业,