SYNCHRONOUS REMOVAL OF MOISTURE AND ORGANIC POLLUTANTS IN DREDGING SEDIMENT BY ELECTRO-FENTON

LIU Junwu; CAI Jingju; FANG Yingchun; CAO Jingxiao; ZHU Jian; WANG Ping; JIANG Xiaxin; ZHU Shanshan; ZHANG Jinjin

doi:10.13205/j.hjgc.202306011

Volume 41 Issue 6

Jun. 2023

Turn off MathJax

Article Contents

Article Navigation > ENVIRONMENTAL ENGINEERING > 2023 > 41(6): 76-81,108

LIU Junwu, CAI Jingju, FANG Yingchun, CAO Jingxiao, ZHU Jian, WANG Ping, JIANG Xiaxin, ZHU Shanshan, ZHANG Jinjin. SYNCHRONOUS REMOVAL OF MOISTURE AND ORGANIC POLLUTANTS IN DREDGING SEDIMENT BY ELECTRO-FENTON[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(6): 76-81,108. doi: 10.13205/j.hjgc.202306011

Citation:

LIU Junwu, CAI Jingju, FANG Yingchun, CAO Jingxiao, ZHU Jian, WANG Ping, JIANG Xiaxin, ZHU Shanshan, ZHANG Jinjin. SYNCHRONOUS REMOVAL OF MOISTURE AND ORGANIC POLLUTANTS IN DREDGING SEDIMENT BY ELECTRO-FENTON[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(6): 76-81,108. doi: 10.13205/j.hjgc.202306011

Citation:

LIU Junwu, CAI Jingju, FANG Yingchun, CAO Jingxiao, ZHU Jian, WANG Ping, JIANG Xiaxin, ZHU Shanshan, ZHANG Jinjin. SYNCHRONOUS REMOVAL OF MOISTURE AND ORGANIC POLLUTANTS IN DREDGING SEDIMENT BY ELECTRO-FENTON[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(6): 76-81,108. doi: 10.13205/j.hjgc.202306011

PDF( 2764 KB)

SYNCHRONOUS REMOVAL OF MOISTURE AND ORGANIC POLLUTANTS IN DREDGING SEDIMENT BY ELECTRO-FENTON

doi: 10.13205/j.hjgc.202306011

1. Hunan Kaidi Engineering Technology Co., Ltd., Changsha 410004, China;
2. Key Laboratory of Lake Ecological Restoration and Sediment Resource Utilization, Hunan Society of Environmental Sciences, Changsha 410004, China;
3. College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China;
4. College of Chemistry and Bioengineering, Hechi University, Yizhou 546300, China

Received Date: 2022-07-14
Available Online: 2023-09-02

Abstract

Abstract

To study the possibility of simultaneous dewatering and decontamination of dredged sediment by electro-Fenton, an electro-Fenton experimental (EF) device was constructed with self-produced hydrogen peroxide carbon black modified carbon felt (CB-CF) as the cathode, and dimensionally stable Ti/RuO₂-IrO₂ electrode anode (DSA) as the anode. In this EF device, the effects of Fe²⁺ dosage, initial pH value, and initial current density on water content and organic matter content of dredging sediment were conducted. The experiment results showed that under the condition of Fe²⁺was 2 mmol/L, the initial current was 100 mA, and the initial pH value was 7, the degradation rate of organic matter content reached 53.9%, and the water content of dredging sediment reached 26% after 12 h. This study proved that the electro-Fenton method can achieve a good dehydration effect, as well as reduce organic pollutants contents in dredged sediment, which is a process worth exploring for the reduction and harmless of the dredged sediment.
- dredging sediment,
- electro-Fenton,
- dewatering,
- organic pollutants,
- harmless

FullText(HTML)

References(29)

References

[1]	林莉,李青云,吴敏. 河湖疏浚底泥无害化处理和资源化利用研究进展[J]. 长江科学院院报, 2014, 31(10):80-88.
[2]	MARTIN J, LUCENA F, BLANCH A R,et al. Review:Indicator bacteriophages in sludge, biosolids, sediments and soils[J]. Environmnet Reseach, 2020,182:109133.
[3]	李钢,韩明爽, 徐海红. 水体疏浚底泥利用现状与能源化利用[J].环境工程学报, 2021,39(6):55-58 ,71.
[4]	薄涛, 季民. 内源污染控制技术研究进展[J]. 生态环境学报, 2017, 26(3):514-521.
[5]	MANAP N, VOULVOULIS N. Environmental management for dredging sediments the requirement of developing nations[J]. Journal of environmental management, 2015,147:338-348.
[6]	WU P, PI K W, SHI Y F, et al. Dewaterability and energy consumption model construction by comparison of electro-dewatering for industry sludges and river sediments[J]. Environmental Research, 2020, 184:109335.
[7]	季俊杰, 何成达, 葛丽英,等. 氧化塘底泥堆肥过程氮磷及重金属变化研究[J]. 环境科学与技术, 2006,19(12):14-15.
[8]	徐文迪, 常沙, 傅金祥, 等. 一种基于电芬顿的污泥强化脱水预处理技术研究[J]. 中国给水排水, 2018, 34(3):116-121.
[9]	LI Y F, YANG F, MIAO S Z, et al. Achieved deep-dewatering of dredged sediments by Fe(Ⅱ) activating persulfate pretreatment:filtrating performance and mechanistic insights[J]. Chemical Engineering Journal,2021,405:126847.
[10]	CHEN Y S, CHEN H P, LI J, at el. Rapid and efficient activated sludge treatment by electro-Fenton oxidation[J]. Water Reseach, 2019, 152:181-190.
[11]	YU F K, ZHOU M H, YU X M. Cost-effective electro-Fenton using modified graphite felt that dramatically enhanced on H₂O₂ electro-generation without external aeration[J]. Electrochimica Acta, 2015, 163:182-189.
[12]	查文桂, 王雪野, 王志伟. 用于微电子废水预处理的过滤式阴极电芬顿工艺中试[J]. 环境工程, 2022, 40(4):153-158 ,208.
[13]	韩丁, 黎睿, 汤显强, 等. 电动脱除孔隙水削减底泥内源磷的效果研究[J]. 中国环境科学, 2020, 40(7):3114-3123.
[14]	CAI J J, XIE J X, ZHANG Q Z, et al. Enhanced degradation of 2,4-dichlorophenoxyacetic acid by electro-fenton in flow-through system using B, Co-TNT anode[J]. Chemosphere, 2022, 292:133470.
[15]	AI J, ZHANG W J, LIAO G Y, et al. A novel waste activated sludge multistage utilization strategy for preparing carbon-based Fenton-like catalysts:Catalytic performance assessment and micro-interfacial mechanisms[J]. Water Reseach, 2019, 150:473-487.
[16]	张平凡, 王一平, 李韡, 等. H₂O₂-Fe²⁺氧化法处理对氨基酚工业废水的研究[J]. 化学工业与工程, 1999, 16(7):330-334.
[17]	郑应俊, 孟海玲, 刘再亮, 等.电芬顿体系中铁铈双金属催化剂降解邻苯二甲酸二丁酯研究[J]. 过程工程学报, 2021, 21(7):857-864.
[18]	马放, 徐炳乾, 邱珊, 等. 泡沫铜阴极电芬顿氧化降解焦化废水研究[J]. 给水排水, 2018, 54(增刊2):170-173.
[19]	李章良, 黄建辉, 肖尚忠, 等. 活性炭负载Fe³⁺催化H₂O₂氧化邻苯二甲酸二甲酯[J]. 环境工程学报, 2014, 8(3):57-62.
[20]	刘亚琦, 袁鹏飞, 张寒旭, 等. 高效催化电芬顿法处理老龄垃圾渗滤液[J]. 水处理技术, 2021, 47(3):57-62.
[21]	龙翔宇. 三维电极法处理EDTA废水的基础研究[D]. 长沙:中南大学, 2014.
[22]	LIU W, AI Z H, ZHANG L Z. Design of a neutral three-dimensional electro-Fenton system with foam nickel as particle electrodes for wastewater treatment[J]. Journal of Hazardous Materials, 2012, 243:257-264.
[23]	于凤娇, 朱佳, 黄潇, 等. 三维电芬顿催化降解四溴双酚A(TBBPA)效能研究[J]. 水处理技术, 2022, 48(5):108-113.
[24]	董立文, 汪诚文, 张鹤清, 等. 电导率对城镇污泥电渗透脱水效果的影响[J]. 中国环境科学, 2013, 33(2):209-214.
[25]	MAHMOUD A, OLIVIER J, VAXELAIRE J, et al. Electro-dewatering of wastewater sludge:influence of the operating conditions and their interactions effects[J]. Water Reseach, 2011, 45(9):2795-2810.
[26]	张林竹. Fenton试剂处理印染废水的实验研究[D]. 武汉:武汉理工大学, 2009.
[27]	张睿琦, 吴红辉, 徐海音, 等. 基于RuO₂-IrO₂/Ti和Fe⁰电极的电氧化-电絮凝处理含Tl废水[J].中国环境科学, 2022, 42(6):2656-2661.
[28]	毕强. 电化学处理有机废水电极材料的制备与性能研究[D]. 西安:西安建筑科技大学, 2015.
[29]	李亚琪, 王弘恺, 朱维晃, 等. 聚苯胺/蒽醌修饰碳毡作为阴极在电芬顿中的应用[J]. 环境科学学报, 2020, 40(11):3905-3912.