[1]丁森旭,冉宗信,孙晓霜,等.修复多环芳烃污染地块的土壤氧化剂需求量[J].深圳大学学报理工版,2023,40(1):48-55.[doi:10.3724/SP.J.1249.2023.01048]
　DING Senxu,RAN Zongxin,SUN Xiaoshuang,et al.Soil oxidant demand for remediation of PAHs contaminated plots[J].Journal of Shenzhen University Science and Engineering,2023,40(1):48-55.[doi:10.3724/SP.J.1249.2023.01048]
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修复多环芳烃污染地块的土壤氧化剂需求量()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第40卷
期数:
2023年第1期
页码:
48-55
栏目:
环境与能源
出版日期:
2023-01-06

文章信息/Info

Title:
Soil oxidant demand for remediation of PAHs contaminated plots
文章编号:
202301006
作者:
丁森旭1; 2; 冉宗信3; 孙晓霜1; 4; 彭云霄3; 余江1; 2; 3
1）四川大学建筑与环境学院，四川成都610065
2）四川大学新能源与低碳技术研究院，四川成都610065
3）江苏方洋水务有限公司，江苏连云港222042
4）四川大学宜宾产业技术研究院，四川宜宾644010
Author(s):
DING Senxu1; 2;  RAN Zongxin3;  SUN Xiaoshuang1; 4;  PENG Yunxiao3;  and YU Jiang1; 2; 3
1) College of Architecture and Environment, Sichuan University, Chengdu 610065, Sichuan Province, P.R.China
2) Institute of New Energy and Low Carbon Technology, Sichuan University, Chengdu 610065, Sichuan Province, P.R.China
3) Jiangsu Fangyang Water Co. Ltd., Lianyungang 222042, Jiangsu Province, P. R. China
4) Yibin Institute of Industrial Technology, Sichuan University, Yibin 644010, Sichuan Province, P.R.China
关键词:
材料化学; 多环芳烃; 化学氧化; 土壤氧化剂需求量; 场地修复; KMnO4; Na2S2O8; H2O2
Keywords:
materials chemistry;  polycyclic aromatic hydrocarbons;  chemical oxidation;  soil oxidant demand;  site remediation;  potassium permanganate;  sodium persulfate;  hydrogen peroxide
分类号:
X53
DOI:
10.3724/SP.J.1249.2023.01048
文献标志码:
A
摘要:
为了解化学氧化剂在多环芳烃（polycyclic aromatic hydrocarbons， PAHs）污染土壤修复过程中的添加用量，分别选用KMnO4、Na2S2O8和H2O2为氧化剂，以中国成都市4个石油化工厂区表层土壤为研究对象，考察了3种氧化剂的反应动力学规律和在不同场地条件下的土壤氧化剂需求量（soil oxidant demand， SOD）及影响因素．结果表明，KMnO4和H2O2在反应1 d内迅速消耗，反应1 d后消耗速率迅速下降，Na2S2O8在反应中的消耗速率则较为稳定，3种氧化剂的反应规律基本符合1级反应动力学；当KMnO4、Na2S2O8和H2O2的施加剂量分别为1、2和12 mmol/g时，各个地块SOD范围分别为44.91～96.06、40.91～52.86和371.47～406.25 g/kg．统计分析表明，KMnO4和Na2S2O8最大需求量与土壤有机质含量、土壤黏粒以及土壤含水率呈显著相关，其中，土壤有机质含量对KMnO4和Na2S2O8的土壤氧化剂需求量影响最大，贡献率分别达到31.57%和40.24%．根据实验结果并考虑经济因素，氧化剂KMnO4和Na2S2O8在PAHs场地修复方面具有较好的应用前景．
Abstract:
In order to better guide the dosage of chemical oxidants in the remediation of polycyclic aromatic hydrocarbons (PAHs) contaminated soil, KMnO4, Na2S2O8 and H2O2 were selected to study the kinetics, soil oxidant demand (SOD) and its influencing factors under four different plant areas in Chengdu, China. The results showed that KMnO4 and H2O2 are rapidly consumed within 1 d. The consumption rate decreases rapidly after 1 d of the reaction, while the consumption rate of Na2S2O8 is relatively stable. The reaction laws of the three oxidants are basically consistent with the first order kinetics. When the doses of KMnO4, Na2S2O8 and H2O2 are 1, 2 ,12 mmol/g, the SOD ranges of KMnO4, Na2S2O8, and H2O2 for each plot are 44.91～96.06, 40.91～52.86, and 371.47～406.25 g/kg, respectively. Statistical analysis show that the maximum demands of KMnO4 and Na2S2O8 are significantly correlated with soil organic matter content, soil clay and soil water content. Among them, soil organic matter content has the greatest effect on the soil oxidant demand of KMnO4 and Na2S2O8, with the contribution rates reaching 31.57% and 40.24%, respectively. According to the experimental results and considering the economic factors, the oxidants KMnO4 and Na2S2O8 have good application prospects in the remediation of PAHs sites.

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备注/Memo

备注/Memo:
Received: 2021- 10-28; Revised: 2022-01-03; Accepted: 2022-10-15; Online (CNKI): 2022-12-15
Foundation: National Key R & D Program (2018YFC1802605); Key Science and Technology Project of Sichuan Province (2017GZ0383, 2017SZ0181)
Corresponding author: Professor YU Jiang. E-mail: yuj@scu.edu.cn
Citation: DING Senxu, RAN Zongxin, SUN Xiaoshuang, et al. Soil oxidant demand for remediation of PAHs contaminated plots [J]. Journal of Shenzhen University Science and Engineering, 2023, 40(1): 48-55.(in Chinese)
基金项目：国家重点研究开发计划资助项目（2018YFC1802605）；四川省科技攻关资助项目（2017GZ0383，2017SZ0181）
作者简介：丁森旭（1997—），四川大学硕士研究生．研究方向：土壤污染修复与治理技术．E-mail: dingsx@stu.scu.edu.cn
引文：丁森旭，冉宗信，孙晓霜，等.修复多环芳烃污染地块的土壤氧化剂需求量［J］.深圳大学学报理工版，2023，40（1）：48-55.
更新日期/Last Update: 2023-01-30