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首页 > 过刊浏览>2023年第51卷第11期 >1753-1762. DOI:10.11908/j.issn.0253-374x.22120
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亚铁联合不同氧化剂对石油烃污染场地热脱附废水的处理
CSTR:
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作者:
作者单位:

1.同济大学建筑设计研究院(集团)有限公司，上海 200092;2.长江水环境教育部重点实验室，同济大学环境科学与工程学院，上海 200092;3.浙江工商大学 环境科学与工程学院，浙江 杭州 310018

作者简介:

王 曦（1985—），男，高级工程师，主要研究方向为污水处理与资源化利用。 E-mail： 275830651@qq.com

通讯作者:

陈静静（1981—），男，工程师，主要研究方向为污水处理与资源化利用。E-mail： 4319629@qq.com

中图分类号:

X524


Ferrous Iron Combined with Different Oxidants for Thermal Desorption Wastewater Treatment from Petroleum Hydrocarbon Contaminated Sites
Author:
Affiliation:

1.Tongji Architectural Design (Group) Co.， Ltd.， Shanghai 200092， China;2.Key Laboratory of Yangtze River Water Environment of the Ministry of Education， College of Environmental Science and Engineering， Tongji University， Shanghai 200092， China;3.School of Environmental Science and Engineering， Zhejiang Gongshang University， Hangzhou 310008， China

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    摘要:

    采用亚铁（Fe2+）分别联合次氯酸钠（NaClO）、过硫酸钠（Na?S?O8）和过氧化氢（H2O2） 3种氧化剂处理某原油浸染土壤的热脱附废水，考察了pH值、Fe2+投加量、氧化剂投加量和反应时间对处理效能的影响。Fe2+/H2O2和Fe2+/ Na?S?O8均能有效去除热脱附废水中的典型污染物——石油烃物质，去除率分别达到100.0%和97.8%，但Fe2+/H2O2体系对化学耗氧量（COD）的去除效果明显优于Fe2+/Na?S?O8。Fe2+/H2O2可将有机物彻底氧化分解，而Fe2+/NaClO和Fe2+/Na?S?O8仅是将有机物氧化分解为中间物质。多元变量分析结果表明，pH值和氧化剂投加量是影响去除效果的主要因素，Fe2+/H2O2处理热脱附废水的吨水处理成本较高，但是综合效果最好；Fe2+/Na?S?O8处理成本次之，但无法彻底降解COD；Fe2+/NaClO成本最低，但对有机物去除效果最差。综合去除效果和经济因素考量， Fe2+/H2O2体系更适用于处理热脱附废水。

    Abstract:

    Ferrous iron （Fe2+） combined with three oxidants， sodium hypochlorite （NaClO）， sodium persulfate （Na?S?O8） and hydrogen peroxide （H2O2） were used to treat thermal desorption wastewater from the crude oil-contaminated soil. The influences of pH， Fe2+ dosage， oxidant dosage and reaction time on the treatment efficiency were investigated. The results show that PHCs （typical pollutants in thermal desorption wastewater） can be effectively removed by Fe2+/H2O2 and Fe2+/Na?S?O8， with a removal efficiency of 100.0% and 97.8%， respectively. However， the chemical oxygen demand （COD） removal efficiency of Fe2+/H2O2 system is significantly higher than that of Fe2+/Na?S?O8. Fe2+/H2O2 can oxidize and decompose organic matters completely， while Fe2+/NaClO and Fe2+/Na?S?O8 can only convert organic matters into intermediate substances. The multivariate analysis results indicate that pH and oxidant dosage are the main factors affecting the removal efficiency. The cost of Fe2+/H2O2 in the treatment of thermal desorption wastewater is higher， but it has the best removal efficiency. The cost of Fe2+/Na?S?O8 is lower than that of Fe2+/H2O2. However， COD cannot be degraded completely. Fe2+/NaClO has the lowest cost but the worst removal efficiency. Hence， considering the removal effect and economic factors， the Fe2+/H2O2 system is more suitable for the treatment of thermal desorption wastewater.

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王曦,李惠平,梁郡,肖丰,殷峻,庞维海,谢丽,陈静静.亚铁联合不同氧化剂对石油烃污染场地热脱附废水的处理[J].同济大学学报(自然科学版),2023,51(11):1753~1762

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  • 收稿日期:2022-03-21
  • 在线发布日期: 2023-12-01
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