摘要
利用石油烃降解菌混合菌和紫花苜蓿、高羊茅2种植物对不同浓度柴油污染土进行植物修复、微生物修复和植物—微生物联合修复室外盆栽对比试验,研究植物修复与植物—微生物联合修复试验中植物种子萌芽率和植物生长状况,采用超声萃取—紫外分光光度法分析3种修复方式对柴油污染土的降解效果。试验结果表明,柴油延长了植物种子的萌芽时间;在植物修复和植物—微生物联合修复过程中,高羊茅的植物生物量和株高大于紫花苜蓿,植物—微生物联合修复的植物生物量和株高总体上明显高于植物修复;3种修复方式修复柴油污染土的总体降解效果排序为:植物—微生物联合修复>微生物修复>植物修复;高羊茅的修复效果优于紫花苜蓿;柴油污染土的柴油浓度越低,修复效果越好。
The comparative experiments of phytoremediation,microbial remediation and plant-microorganism combined remediation of outdoor dotted plant for different contents of diesel contaminated soil were carried by using mixed strains of petroleum hydrocarbon degrading bacteria and two kinds of plant(alfalfa and tall fescue).The germination rate of plant seeds and plant growth status in phytoremediation and plant-microorganism combined remediation experiments were studied,and the degradation effects on diesel contaminated of three remediation methods by ultrasonic extraction ultraviolet spectrophotometry were analyzed.The experimental results show that diesel oil delayed the germination time of plant seeds.The plant biomass and plant height of tall fescue are greater than that of alfalfa in the process of phytoremediation and plant-microorganism combined remediation.As a whole,the plant biomass and plant height of plant-microorganism combined remediation are significantly higher than that of phytoremediation.The sort of overall degradation effects of three remediation methods for diesel contaminated soil are as follows:plant-microorganism combined remediation,microbial remediation,phytoremediation.The remediation effect of tall fescue is better than that of alfalfa.The lower diesel concentration of diesel contaminated soil would make the remediation effect better.
作者
申春妮
曹小方
李腾
方祥位
张伟
余咏平
SHEN Chunni;CAO Xiaofang;LI Teng;FANG Xiangwei;ZHANG Wei;YU Yongping(School of Civil Engineering and Architecture,Chongqing University of Science and Technology,Chongqing 401331,P.R.China;School of Civil Engineering,Chongqing University,Chongqing 400045,P.R.China;JSTI Safety Research Department Testing Division,Nanjing 211100,P.R.China;Unit 32102 of the Chinese People's Liberation Army,Yantai 265200,Shandong,P.R.China;Department of Military Installations,Army Logistics University of PLA,Chongqing 401311,P.R.China)
出处
《土木与环境工程学报（中英文）》
CSCD
北大核心
2023年第3期145-153,共9页
Journal of Civil and Environmental Engineering
基金
重庆社会事业与民生保障科技创新专项重点研发项目(cstc2017shms-zdyfX0073)。
关键词
柴油污染土
土壤修复
石油烃降解菌
紫花苜蓿
高羊茅
diesel contaminated soil
soil remediation
petroleum hydrocarbon degrading bacteria
alfalfa
tall fescue
