摘要
为了探究不同温度下烧制生物炭及其施用量对豫西南石油污染修复的效果,本研究通过土培试验,将两种温度烧制的生物炭及三种施用量两两组合,并以不施生物炭处理作为对照,系统研究了施用方案对石油污染土壤理化性状的影响。研究得出:与对照处理相比,各生物炭处理减少了土壤石油污染障碍,土壤总石油烃含量从2 338 mg/kg降低到224 mg/kg;土壤的pH值从6.73升高到7.00;土壤全盐量从0.53 g/kg提高到0.82 g/kg;明显降低土壤Cd(67.64%~77.32%)和Hg含量(30.83%~55.68%)。综合考虑土壤总石油烃的含量、pH值、全盐量及重金属适宜范围,推荐G3处理(生物炭烧制温度为300℃,生物炭施入量为30 g/kg-1)作为最优处理,此处理可为石油污染修复提供理论参考。
In order to explore the different temperature offiring biochar and the effect of southwest oil pollution remediation,through the soil test,the two kinds of temperaturefiring biochar and three kinds of application combinations,and no biochar treatment as a control,systematically studied the effect of application scheme on the physical and chemical traits of petroleum contaminated soil.Study concluded that:compared with the control treatment,various biochar treatments reduced soil oil pollution barriers,reduce the total petroleum hydrocarbon content in the soil from 2338 mg/kg to 224 mg/kg;Increasing the pH value of the soil from 6.73 to 7.00;the total salt content of the soil was increased from 0.53 g/kg to 0.82 g/kg;obviously reduced the soil Cd(67.64%~77.32%)and Hg content(30.83%~55.68%).Considering the total petroleum hydrocarbon content,pH value,total salt content and suitable range of heavy metals,recommended G3 treatment(biocharfiring temperature:300℃,biochar application amount of 30 g/kg-1)as the optimal treatment,this treatment can provide a theoretical reference for oil pollution remediation.
作者
李洋
张苏苏
侯崇
来亚芳
桑家福
Li Yang;Zhang Susu;Hou Chong;Lai Yafang;Sang Jiafu(Henan First Geological Exploration Institute Co.,Ltd.,Zhengzhou 450001,China)
出处
《皮革制作与环保科技》
2025年第9期111-113,共3页
Leather Manufacture and Environmental Technology
基金
河南省豫地科技集团有限公司2023年度科技项目([2023]60号)。
关键词
生物炭
总石油烃
CD
HG
适宜施用量
biochar
total petroleum hydrocarbon
Cd
Hg
appropriate application amount
