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Simultaneous Degradation, Dehalogenation, and Detoxification of Halogenated Antibiotics by Carbon Dioxide Radical Anions

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Engineering 2024年第6期37卷 78-86页

作者： Yanzhou Ding Xia Yu shuguang lyu Huajun Zhen Wentao Zhao Cheng Peng Jiaxi Wang Yiwen Zhu Chengfei Zhu Lei Zhou Qian Sui State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process School of Resources and Environmental EngineeringEast China University of Science and TechnologyShanghai 200237China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and EngineeringTongji UniversityShanghai 200092China Shanghai Academy of Environmental Sciences Shanghai 200233China

Despite the extensive application of advanced oxidation processes(AOPs)in water treatment,the efficiency of AOPs in eliminating various emerging contaminants such as halogenated antibiotics is constrained by a number of *** moieties exhibit strong resistance to oxidative radicals,affecting the dehalogenation and detoxification *** address these limitations of AOPs,advanced reduction processes(ARPs)have been ***,a novel nucleophilic reductant—namely,the carbon dioxide radical anion(CO_(2)^(·-))—is introduced for the simultaneous degradation,dehalogenation,and detoxification of florfenicol(FF),a typical halogenated *** results demonstrate that FF is completely eliminated by CO_(2)^(·-),with approximately 100%of Cland 46%of Freleased after 120 min of *** detoxification is observed,which exhibits a linear response to the release of free inorganic halogen ions(R^(2)=0.97,p75%)in degrading a series of halogenated antibiotics,including chloramphenicol(CAP),thiamphenicol(THA),diclofenac(DLF),triclosan(TCS),and ciprofloxacin(CIP).The system shows high tolerance to the pH of the solution and the presence of natural water constituents,and demonstrates an excellent degradation performance in actual groundwater,indicating the strong application potential of CO_(2)^(·-)-based ARPs in real ***,this study elucidates the feasibility of CO_(2)^(·-)for the simultaneous degradation,dehalogenation,and detoxification of halog

关键词： Carbon dioxide radical anions Advanced reduction processes Halogenated antibiotics Dehalogenation Detoxification

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硼强化铁离子活化过硫酸盐高效降解荧蒽的研究

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水处理技术 2024年第5期50卷 79-85页

作者：张汝壮诸毅李明吕树光上海城投上境生态修复科技有限公司上海200232 华东理工大学资源与环境工程学院国家环境保护化工过程环境风险评价与控制重点实验室上海200237

采用硼(B)强化铁离子活化过硫酸盐(PS)降解荧蒽(FLT),阐明了B的强化机理,从FLT的降解效果和PS利用率角度研究了B强化三价铁(Fe^(3+))活化PS的优越性,探究了水质条件对FLT降解的影响,验证了PS/Fe^(3+)/B体系在实际地下水中降解FLT和其他... 详细信息

采用硼(B)强化铁离子活化过硫酸盐(PS)降解荧蒽(FLT),阐明了B的强化机理,从FLT的降解效果和PS利用率角度研究了B强化三价铁(Fe^(3+))活化PS的优越性,探究了水质条件对FLT降解的影响,验证了PS/Fe^(3+)/B体系在实际地下水中降解FLT和其他多环芳烃的可行性。结果表明:PS/Fe^(3+)/B体系中FLT降解的拟一级反应动力学常数k_(obs)为0.043 9 min^(-1),PS/Fe^(2+)/B体系中k_(obs)在30 min后从0.044 7 min^(-1)降低至0.009 6 min^(-1),证明PS/Fe^(3+)/B体系可实现FLT的持续高效降解。当Fe^(3+)浓度在0.02~0.08 mmol/L之间时,PS/Fe^(3+)/B体系均可高效降解FLT,表现出更强的可操作性。结合X射线光电子能谱仪的分析结果、Fe^(2+)和PS的浓度变化,证明Fe^(3+)的持续释放和B的持续还原性可以保障体系中活性氧物种(ROS)的高效利用。水质条件影响试验结果表明,酸性条件有利于FLT的高效降解,碳酸根离子和高浓度的腐殖酸不利于FLT的降解。实际地下水的复杂环境对FLT的降解有一定的抑制作用,但是通过预调酸pH=4.0后FLT去除率达到99.9%,同时PS/Fe^(3+)/B体系对萘和菲也具有良好的去除效果。

关键词：硼铁离子过硫酸盐荧蒽地下水修复

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Enhanced carbon tetrachloride degradation by hydroxylamine in ferrous ion activated calcium peroxide in the presence of formic acid

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Frontiers of Environmental Science & Engineering 2020年第2期14卷 75-85页

作者： Wenchao Jiang Ping Tang Zhen Liu Huan He Qian Sui shuguang lyu State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process East China University of Science and TechnologyShanghai 200237China Environmental Engineering and Science Program Department of Chemical and Environmental EngineeringUniversity of CincinnatiCincinnatiOH 45221-0071USA

Hydroxyl radicals(HO*)show low reactivity with perchlorinated hydrocarbons,such as carbon tetrachloride(CT),in conventional Fenton reactions,therefore,the generation of reductive radicals has attracted increasing *** study investigated the enhancement of CT degradation by the synergistic effects of hydroxylamine(HA)and formic acid(FA)(initial[CT]=0.13 mmol/L)in a Fe(il)activated calcium peroxide(CP)fenton *** degradation increased from 56.6%to 99.9%with the addition of 0.78 mmol/L HA to the CP/Fe(II)/FA/CT process in a molar ratio o f 12/6/12/*** results also showed that the presence of HA enhanced the regeneration of Fe(II)from Fe(III),and the production of HO*increased one-fold when employing benzoic acid as the HO****,FA slightly improves the production of HO*.A study of the mechanism confirmed that the carbon dioxide radical(C02·),a strong reductant generated by the reaction between FA and HO*,was the dominant radical responsible for CT *** complete CT dechlorination was achieved in the *** presence of humic acid and chloride ion slightly decreased CT removal,while high doses of bicarbonate and high pH inhibited CT *** study helps us to better understand the synergistic roles of FA and HA for HO·and C02·^-generation and the removal of perchlorinated hydrocarbons in modified Fenton systems.

关键词： Calcium peroxide Hydroxylamine Modified Fenton Reactive oxygen species Perchlorinated hydrocarbon

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桂枝加葛根汤联合棍点理筋正骨手法治疗颈型颈椎病的临床效果

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中国当代医药 2024年第17期31卷 60-64页

作者：刘同明刘铭黄敦胜吕曙光安徽省亳州市中医院骨伤科安徽亳州236800

目的观察桂枝加葛根汤联合棍点理筋正骨手法对于颈型颈椎病的治疗效果。方法选取2022年1月至2023年1月亳州市中医院骨伤科收治的120例颈型颈椎病患者作为研究对象,按照随机数字表法分为对照1组(40例)、对照2组(40例)和观察组(40例)。对... 详细信息

目的观察桂枝加葛根汤联合棍点理筋正骨手法对于颈型颈椎病的治疗效果。方法选取2022年1月至2023年1月亳州市中医院骨伤科收治的120例颈型颈椎病患者作为研究对象,按照随机数字表法分为对照1组(40例)、对照2组(40例)和观察组(40例)。对照1组单用桂枝加葛根汤口服治疗,1日1剂,早晚分服,连续服用2周;对照2组单用棍点理筋正骨手法治疗,3 d一次,治疗2周;观察组使用桂枝加葛根汤联合棍点理筋正骨手法治疗,治疗2周。比较三组患者治疗前后的疼痛视觉模拟评分法(VAS)评分、颈椎功能障碍指数量表(NDI)和临床疗效。结果三组患者治疗后的VAS评分、NDI功能评分低于本组治疗前,差异有统计学意义(P<0.05),且观察组的VAS评分、NDI功能评分低于对照1组、对照2组,差异有统计学意义(P<0.05);观察组的疗效优于对照1组、对照2组,差异有统计学意义(P<0.017)。结论桂枝加葛根汤联合棍点理筋正骨手法可显著改善颈型颈椎病临床症状,减轻疼痛,改善颈椎功能。

关键词：颈型颈椎病桂枝加葛根汤棍点理筋正骨手法中医外治法

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CFD-based hull optimization in calm water using adaptive grid deformation method

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Journal of Hydrodynamics 2024年第2期36卷 241-262页

作者： shuguang Wang Yonghwan Kim Department of Naval Architecture and Ocean Engineering Seoul National UniversitySeoulKorea

This paper presents an adaptive grid deformation technique for optimizing ship hull forms using computational fluid dynamics(CFD).The proposed method enables accurate and smooth updates of the hull surface and 3-D CFD grids in response to design *** technique incorporates a two-level point-transformation approach to move the grid points by a few design ***,generic B-splines are utilized to transform grid points according to the displacements of the control points within a defined control *** ensures surface modification accuracy and smoothness,similar to those provided by non-uniform rational ***,radial basis functions are used to interpolate the movements of the control points with a limited set of design *** developed method effectively maintains the mesh quality and simulation *** applying this method to surface and grid adaptation,a regression model is proposed in the form of a second-order polynomial to represent the relationship between the geometric parameters and design *** polynomial is then used to introduce geometric ***,a radial basis function surrogate model for the calm-water resistance is constructed to approximate the objective *** enhanced optimization framework is proposed for CFD–based hull optimization and applied to KVLCC2 to validate its feasibility and efficiency.

关键词： Hull-form optimization adaptive grid deformation ship resistance OpenFOAM radial basis function(RBF)surrogate model

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Screening of indicator pharmaceuticals and personal care products in landfill leachates: a case study in Shanghai, China

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Frontiers of Environmental Science & Engineering 2023年第9期17卷 245-256页

作者： Xiping Kan Xia Yu Wentao Zhao shuguang lyu Shuying Sun Gang Yu Qian Sui State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process School of Resources and Environmental EngineeringEast China University of Science and TechnologyShanghai 200237China State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and EngineeringTongji UniversityShanghai 200092China Advanced Interdisciplinary Institute of Environment and Ecology Beijing Normal University at ZhuhaiZhuhai 519087China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China

Identifying potential sources of pharmaceuticals and personal care products(PPCPs)in the environment is critical for the effective control of PPCP *** leachate is an important source of PPCPs in water;however,it has barely been involved in source apportionment due to the lack of indicator-PPCPs(i-PPCPs)in landfill *** study provides the first systematic framework for identifying i-PPCPs for landfill leachates based on the wide-scope target monitoring of *** number of target PPCPs increased from<20 in previous studies to 68 in the present ***-nine PPCPs were detected,with median concentrations in leachate samples ranging from below the method quantification limit(MQL)to 41μg/L,and 19 of them were rarely reported previously.A total of 29 target compounds were determined to be PPCPs of high concern by principal component analysis according to multiple criteria,including occurrence,exposure potential,and ecological *** with source-specificity and representativeness analysis,erythromycin,gemfibrozil,and albendazole showed a significant difference in their occurrence in leachate compared to other potential sources(untreated and treated municipal wastewater and livestock wastewater)and correlated with total PPCP concentrations;these were recommended as i-PPCPs for *** screening procedure can be used to develop a sophisticated source apportionment method to identify sources of PPCPs from adjacent landfills.

关键词： Landfill leachates PPCPs Indicator Screening criteria Source-specificity

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Cr-containing wastewater treatment based on Cr self-catalysis: a critical review

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Frontiers of Environmental Science & Engineering 2024年第1期18卷 1-22页

作者： Manshu Zhao Xinhua Wang shuguang Wang Mingming Gao School of Environmental Science and Engineering Shandong UniversityQingdao 266237China Shandong Key Laboratory of Environmental Processes and Health Shandong UniversityQingdao 266237China Shandong Key Laboratory of Water Pollution Control and Resource Reuse Shandong UniversityQingdao 266237China Weihai Research Institute of Industrial Technology of Shandong University Weihai 264209China

Chromium (Cr), as a transition metal material with multiple redox states, has exhibited the catalysis toward Fenton-like reactions over a wide pH range. Although it is not sensible to add Cr reagents as catalysts due to its toxicity, it is highly promising to remediate Cr-containing wastewater through Cr-initiated advanced oxidation processes (Cr-initiated AOPs), which are clean and low-cost. Moreover, the widely concerned Cr-complexes, considered as obstacles in the remediation process, can be effectively destroyed by AOPs. Cr self-catalysis is defined as Cr species is both substrate and catalyst. However, the full understanding of Cr self-catalysis, including the generation of intermediates Cr(IV)/Cr(V), the synergetic effects with co-existing ions, and the accumulation of toxic Cr(VI), remains a challenge for the practical application of Cr-initiated AOPs. In this review, relevant researches on Cr self-catalysis during Cr-initiated AOPs are summarized. Specifically, the Cr-Fenton-like reaction, Cr substituted materials, and Cr-sulfite reactions are explored as key mechanisms contributing to Cr self-catalysis. Moreover, Cr transformation processes, including synchronously Cr removal, Cr redox reactions, and Cr(VI) accumulation, in AOPs-based synergistic systems are systematically analyzed. Detailed approaches for the detection of active species in AOPs-based systems are also presented. The primary objective of this review is to explore the application of AOPs for Cr-containing wastewater remediation based on Cr self-catalysis, and provide fundamental insights and valuable information for future research on Cr-initiated AOPs.

关键词： Self-catalysis Cr-initiated AOPs Cr transformation Cr intermediates Cr-containing wastewater

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Fe^(3+)催化过氧化钙体系降解水中三氯乙烯

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环境污染与防治 2018年第4期40卷 392-397页

作者：丁宇张祥吕树光富国新能源科技(阜新)有限公司辽宁阜新123006 华东理工大学国家环境保护化工过程环境风险评价与控制重点实验室上海200237

采用Fe^(3+)催化过氧化钙(CP)处理水溶液中三氯乙烯(TCE),考察了CP和Fe^(3+)投加量、地下水中常见阴离子和腐殖酸对TCE降解效果的影响。结果表明,Fe^(3+)催化CP体系可以有效降解TCE,但相同药剂投加量下效率低于Fe^(3+)催化H_2O_2体系。... 详细信息

采用Fe^(3+)催化过氧化钙(CP)处理水溶液中三氯乙烯(TCE),考察了CP和Fe^(3+)投加量、地下水中常见阴离子和腐殖酸对TCE降解效果的影响。结果表明,Fe^(3+)催化CP体系可以有效降解TCE,但相同药剂投加量下效率低于Fe^(3+)催化H_2O_2体系。在TCE初始摩尔浓度为0.15mmol/L,CP和Fe^(3+)投加量分别为3.00、6.00mmol/L时,180min时TCE去除率达到了96.1%。常见阴离子Cl^-、HCO_3^-和SO_4^(2-)对TCE的降解有抑制作用,NO_3^-对TCE降解几乎无影响,而腐殖酸对TCE降解有促进作用。自由基清除实验表明TCE降解的主导自由基为HO·,Cl^-的释放效果显示HO·的氧化作用可使降解的TCE完全矿化。因此,Fe^(3+)催化CP技术适用于污染场地地下水中TCE的修复治理。

关键词：三氯乙烯过氧化钙 Fe3+ 化学氧化地下水修复

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纳米零价铁协同Fe(Ⅱ)活化过碳酸钠降解含吐温-80水体中的三氯乙烯

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环境工程学报 2021年第2期15卷 688-698页

作者：吕言臣李明章长松吕树光华东理工大学资源与环境工程学院国家环境保护化工过程环境风险评价与控制重点实验室上海200237 上海亚新建设工程有限公司上海200436

在表面活性剂吐温-80(Tween-80)存在下,采用纳米零价铁(nZVI)协同Fe(Ⅱ)共同活化过碳酸钠(SPC)体系去除污染场地水相中的三氯乙烯(TCE),验证了SPC/Fe(Ⅱ)/nZVI体系降解TCE的有效性,探究了Tween-80浓度、无机阴离子以及溶液初始pH对TCE... 详细信息

在表面活性剂吐温-80(Tween-80)存在下,采用纳米零价铁(nZVI)协同Fe(Ⅱ)共同活化过碳酸钠(SPC)体系去除污染场地水相中的三氯乙烯(TCE),验证了SPC/Fe(Ⅱ)/nZVI体系降解TCE的有效性,探究了Tween-80浓度、无机阴离子以及溶液初始pH对TCE降解效果的影响,并确定了该体系中活性氧自由基的类型。结果表明:nZVI协同Fe(Ⅱ)共同活化SPC能够高效持续降解TCE,在TCE和Tween-80初始浓度分别为0.15 mmol·L^(−1)和13 mg·L^(−1)的溶液中,SPC、Fe(Ⅱ)和nZVI的投加量分别为0.6 mmol·L^(−1)、0.6 mmol·L^(−1)和25 mg·L^(−1)时,在60 min内,TCE的降解率可达97.3%;Tween-80的存在会抑制TCE的降解,Tween-80浓度越高,抑制效果越明显;溶液中Cl−的存在对TCE的影响不明显,而HCO_(3)^(-)的抑制效果较明显;当溶液初始pH为2.0~5.2时,SPC/Fe(Ⅱ)/nZVI体系可有效去除TCE;化学探针实验证明体系中产生了·OH和O_(2)^(-)·,自由基淬灭实验证实了降解TCE起主导作用的是·OH。综上所述,SPC/Fe(Ⅱ)/nZVI体系可以有效地去除含吐温-80的水相中的TCE,本研究成果可为污染土壤场地修复工程提供参考。

关键词：污染场地修复过碳酸钠纳米零价铁三氯乙烯吐温-80 Fe(Ⅱ) 协同活化

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垃圾渗滤液中微塑料分析的消解方法评价

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中国环境监测 2021年第1期37卷 136-141页

作者：徐子茜隋倩吕树光华东理工大学资源与环境工程学院国家环境保护化工过程环境风险评价与控制重点实验室上海200237

微塑料(MPs)是近年来国内外关注度极高的新兴污染物,建立实际环境样品中MPs的分析方法是开展相关研究的基础。对于复杂污水样品而言,样品的消解过程至关重要,将极大地影响MPs的准确分析。选择垃圾渗滤液为典型复杂污水样品,采用样品浊... 详细信息

微塑料(MPs)是近年来国内外关注度极高的新兴污染物,建立实际环境样品中MPs的分析方法是开展相关研究的基础。对于复杂污水样品而言,样品的消解过程至关重要,将极大地影响MPs的准确分析。选择垃圾渗滤液为典型复杂污水样品,采用样品浊度和色度变化、残余悬浮固体量、MPs在颗粒物中的占比为评价指标,对盐酸消解、30%过氧化氢消解及芬顿试剂消解3种常用消解方法的消解效果进行了比较。结果表明,30%过氧化氢对垃圾渗滤液样品的消解效果最佳,MPs在全部颗粒物中的占比达63.7%,极大地缩减了后续MPs定性分析的时间,降低了分析难度,且对渗滤液中MPs的回收率也高达(103±3)%。在此基础上,讨论了消解效果与过氧化氢投加量/样品浊度(V_(H_(2)O_(2))/T_(1))的关系。当V_(H_(2)O_(2))/T_(1)为0.15~0.20 mL/NTU时,样品残余悬浮固体量最低,消解效果最佳。

关键词：微塑料新兴污染物消解方法比较投加量

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