水平碳纤维刷耦合生物电化学系统强化土壤中总石油烃降解及扩展作用半径

朱丽君; 王欢; 李绍峰; 路璐

doi:10.13205/j.hjgc.202307022

水平碳纤维刷耦合生物电化学系统强化土壤中总石油烃降解及扩展作用半径

doi: 10.13205/j.hjgc.202307022

朱丽君^1,2,
王欢^1,2, ,,
李绍峰^1,2,
路璐³

1. 深圳职业技术学院城市生态与环境技术研究院, 广东深圳 518055;
2. 深圳职业技术学院材料与环境工程学院, 广东深圳 518055;
3. 哈尔滨工业大学(深圳) 土木与环境工程学院, 广东深圳 518055

基金项目:

国家自然科学基金项目（42107424）；深圳市高等院校稳定支持项目（20220815163819003）；深圳职业技术学院深圳市高端人才科研启动项目（6022310048K）；深圳市可持续发展专项（KCXFZ20201221173203010）

详细信息

作者简介:
朱丽君(1994-),女,硕士研究生,主要研究方向为土壤生物电化学修复。zhulj7@szpt.edu.cn

通讯作者:
王欢(1982-),女,副研究员,主要研究方向为土壤和地下水修复。huanwang@szpt.edu.cn

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出版历程
- 收稿日期: 2022-07-31

HORIZONTAL CARBON FIBER BRUSH COUPLING BIOELECTRICHEMICAL SYSTEM TO STRENGTHEN TOTAL PETROLEUM HYDROCARBON DEGRADATION AND EXPAND INFLUENCE RADIUS

ZHU Lijun^1,2,
WANG Huan^{1,2
, ,},
LI Shaofeng^1,2,
LU Lu³

1. Institute of Urban Ecology and Environmental Technology, Shenzhen Polytechnic, Shenzhen 518055, China;
2. School of Materials and Environmental Engineering, Shenzhen Polytechnic, Shenzhen 518055, China;
3. Civil and Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China

摘要

摘要: 为解决传统管状土壤生物电化学系统（SBES）应用中因土壤传质效率低导致的修复半径有限的问题，借助水平定向钻机设备构建了水平碳纤维刷耦合SBES的新构型，通过搭建水平电子通路促进远端石油污染物降解，探究水平碳纤维刷SBES构型对土壤总石油烃（TPH）降解的最大作用半径。结果表明：在启动80 d后，水平碳纤维刷SBESs构型的TPH去除率可达到46.4％~49.0％，比垂直SBES提高了169.8%~184.9%，相较于自然降解处理组提高了358.4%~385%，微生物输出的最大电流密度达到21.7~35.8 mA/m²。水平碳纤维刷耦合SBESs构型的最大作用半径为136~138 cm，是垂直SBES的1.48~1.50倍。综上，水平碳纤维刷耦合SBES强化了微生物石油烃降解及扩展了作用半径，可为SBES在工程应用领域提供全新的解决方案。
- 土壤微生物电化学系统 /
- 碳纤维刷 /
- 总石油烃 /
- 降解作用半径
Abstract: In order to solve the problem of the limited radius of influence (ROI) caused by low soil mass transfer efficiency in the application of traditional tubular soil bioelectrochemical system (SBES), horizontally placed carbon brush integrated with horizontal drilling was used to build a new SBES configuration in this study. A horizontal electronic pathway was constructed to promote the degradation of total petroleum hydrocarbon (TPH), while investigating the maximum ROI. The results showed that carbon fiber brush coupling SBESs removed 46.4% to 49.0% of TPH after 80 days, which was 169.8% to 184.9% and 358.4% to 385% higher than those of vertical SBES and natural attenuation, respectively. Besides, the current production correlated with TPH removal reached a maximum output of 21.7 to 35.8 mA/m², and the maximum ROI could be 136 to 138 cm, which was 1.48 to 1.50 times in terms of vertical SBES. Therefore, the horizontal carbon fiber brush coupling SBES could enhance the microbial degradation of TPH and expansion of ROI, which provides new technology in SBES engineering applications.
- soil bioelectrichemical system /
- carbon fiber brush /
- total petroleum hydrocarbons /
- influence radius

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