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Degradation of Azo dye direct black BN based on adsorption and microwave-induced catalytic reaction

Frontiers of environmental Science & Engineering 2018年第1期12卷 71-83页

作者： Shanshan Ding Wen Huang shaogui yang Danjun Mao julong Yuan Yuxuan Dai Jijie Kong cheng sun Huan he Shiyin Li Limin Zhang state key laboratory of pollution control and resource reuse School of the Environment Nanjing University Nanjing 210023 China school of environment Nanjing Normal University Nanjing 210023 China

The novel microwave catalyst MgFe204-SiC was synthesized via sol-gel method, to remove azo dye Direct Black BN （DB BN） through adsorption and microwave-induced catalytic reaction. Microwave- induced catalytic degradation of DB BN, including adsorption behavior and its influencing Factors of DB BN on MgFc204-SiC were investigated. According to the obtained results, il indicated thai the pseudo-second-order kinetics model was suitable fbr the adsorption of DB BN onto MgFc204-SiC. Besides, the consequence of adsorption isotherm depicted that the adsorption of DB BN was in accordance with the Langmuir isotherm, which verified that the singer layer adsorption of MgF%O4- SiC was dominant than the multi-layer one. The excellent adsorption capacities of MgFe204-SiC were kept in the range of initial pH from 3 to 7. In addition, it could be concluded that the degradation rate of DB BN decreased over ten percent after the adsorption equilibrium had been attained, and thc results from the result of comparative experiments manitbsted that the adsorption process was not conducive to the process of microwave-induced catalytic degradation. The degradation intermediates and products of DB BN were identified and determined by GC-MS and LC-MS. Furthermore, combined with the catalytic mechanism of MgFe204-SiC, the proposed degradation pathways of DB BN were the involution of microwave-induced OH and holes in this catalytic system the breakage of azo bond, hydroxyl substitution, hydroxyl addition, nitration reaction, dcamination reaction, dcsorbate reaction, dehydroxy group and ring-opening reaction.

关键词： AdsorptionMicrowave-induced catalytic degradationDirect black BNDegradation pathway

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Investigation of the effects of humic acid and H_(2)O_(2) on the photocatalytic degradation of atrazine assisted by microwave

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Frontiers of environmental Science & Engineering 2010年第3期4卷 321-328页

作者： Chao QIN shaogui yang cheng sun Manjun ZHAN Rongjun WANG Huanxing CAI Jia ZHOU state key laboratory of pollution control and resource reuse School of the EnvironmentNanjing UniversityNanjing 210093China nanjing Research Institude of environmental Protection Nanjing 210013China Changzhou environmental Monitoring Center Changzhou 210093China

A solution of atrazine in a TiO_(2)suspension,an endocrine disruptor in natural water,was tentatively treated by microwave-assisted photocatalytic *** effects of mannitol,oxygen,humic acid,and hydrogen dioxide on the photodegradation rate were *** results could be deduced as follows:the photocatalytic degradation of atrazine fits the pseudo-first-order kinetic well with k=0.0328 s–1,and·OH was identified as the dominant *** of atrazine was hindered in the presence of humic acid,and the retardation effect increased as the concentration of humic acid increased.H_(2)O_(2)displayed a significant negative influence on atrazine photocatalysis *** on intermediates identified with gas chromatography-mass spectrometry(GC-MS)and Liquid chromatography-mass spectrometry(LC-MS/MS)techniques,the main degradation routes of atrazine are proposed.

关键词： atrazine retardation effect photocatalysis TiO_(2)

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城市污水厂污泥土地利用可靠性探讨

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同济大学学报（自然科学版） 2004年第7期32卷 939-942页

作者：程五良方萍陈玲赵建夫同济大学污染控制与资源化研究国家重点实验室上海200092

讨论了污泥土地利用的可行性以及近年来的研究进展 .选取了上海市曲阳污水厂污泥和潮滩沙土的混合土壤做土地种植试验 ,结果表明绝大部分的植物在污泥和潮滩沙土混合土壤上能够存活 ,并生长良好 .初步论证了污泥用于改良潮滩沙土及应用... 详细信息

讨论了污泥土地利用的可行性以及近年来的研究进展 .选取了上海市曲阳污水厂污泥和潮滩沙土的混合土壤做土地种植试验 ,结果表明绝大部分的植物在污泥和潮滩沙土混合土壤上能够存活 ,并生长良好 .初步论证了污泥用于改良潮滩沙土及应用于园林绿化种植土的可行性 ,认为将污泥进行土地资源化利用将成为我国污泥处置利用的一种有效途径 .

关键词：污水厂污泥土地利用植物种植

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Solid Bronsted acidity boosts adsorption reactivity of nano-adsorbent for water decontamination

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Frontiers of environmental Science & Engineering 2024年第7期18卷 23-34页

作者： Sikai cheng Zhixian Li Kaisheng Zhang Qingrui Zhang Xiaolin Zhang Bingcai Pan state key laboratory of pollution control and resource reuse School of the EnvironmentNanjing UniversityNanjing 210023China environmental Materials and pollution control laboratory Institute of Solid State PhysicsHFIPSChinese Academy of SciencesHefei 230031China state key laboratory of Metastable Materials Science and Technology Yanshan UniversityQinhuangdao 066004China hebei key laboratory of heavy Metal Deep-remediation in Water and resource reused Qinhuangdao 066004China Research Center for environmental Nanotechnology(ReCENT) Nanjing UniversityNanjing 210023China

Despite the development of various Lewis acidic nano-adsorbents for fluoride removal through innersphere coordination,strong competition for hydroxyl ions still hinders efficient water *** addition,the critical issue of polysilicate scaling that results from the ubiquitous silicates must be *** tackle these issues,an alternative approach to enhancing adsorption reactivity by modifying nano-adsorbents with dual Lewis and Bronsted acidity is *** feasibility of this approach is demonstrated by growing zirconium phosphate(ZrP)inside a gel-type anion exchanger,N201,to produce nanocomposite ZrP@N201,in which the confined ZrP contained an otherwise metastable amorphous phase with Lewis acidic Zr^(4+) sites and Bronsted acidic monohydrogen phosphate groups(-O_(3)POH).Compared with the Lewis acidic nano-zirconium oxide analog(HZ0@N201),ZrP@N201 exhibited a greatly improved adsorption capacity(117.9 vs.52.3 mg/g-Zr)and mass transfer rate(3.56×10^(-6) vs.4.55×10^(-7) cm/s),while bulk ZrP produced a thermodynamically stableα-phase with Bronsted acidity that exhibited negligible adsorption capability toward *** enhanced defluoridation activity of ZrP@N201 is attributed to Bronsted acidity and the increased outer electron density of ZA+sites,as corroborated using XPS and solid-state NMR ***,Bronsted acidity strengthens the resistance of ZrP@N201 to silicate,allowing its full regeneration during cyclic *** tests demonstrated 3-10 times the amount of clean water from(waste)for ZrP@N201 as compared to both HZO@N201 and the widely used activated aluminum *** study highlights the potential of developing nano-adsorbents with dual acidities for various environmental remediation applications.

关键词： Nanocomposite Selective adsorption Fluoride removal Dual Lewis and Bronsted acidity Regeneration

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中美欧跨区域大气环境监管比较研究及启示

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四川环境 2011年第5期30卷 128-132页

作者：刘洁万玉秋沈国成汪晓勇南京大学环境学院污染控制与资源化国家重点实验室南京210046

近年来,酸雨、灰霾和光化学烟雾等跨区域大气环境问题日益突出,严重威胁广大人民群众的健康和环境安全。美国和欧盟在跨区域大气环境监管中都取得了丰富的经验。本文通过对中美欧跨区域大气环境监管在组织机制、法律法规、机构建设和监... 详细信息

近年来,酸雨、灰霾和光化学烟雾等跨区域大气环境问题日益突出,严重威胁广大人民群众的健康和环境安全。美国和欧盟在跨区域大气环境监管中都取得了丰富的经验。本文通过对中美欧跨区域大气环境监管在组织机制、法律法规、机构建设和监管手段等4个方面比较分析,结合我国国情,试图为我国跨区域大气环境监管的完善提供一些有益的启示。

关键词：跨区域大气环境比较研究启示

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Emerging contaminants:A One health perspective

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The Innovation 2024年第4期5卷 140-170,139页

作者： Fang Wang Leilei Xiang Kelvin Sze-Yin Leung Martin Elsner Ying Zhang Yuming Guo Bo Pan Hongwen sun Taicheng An Guangguo Ying Bryan WBrooks Deyi Hou Damian Ehelbling Jianqiang sun Hao Qiu Timothy MVogel Wei Zhang Yanzheng Gao Myrna JSimpson Yi Luo Scott XChang Guanyong Su Bryan MWong Tzung-May Fu Dong Zhu Karl JJobst chengjun Ge Frederic Coulon Jean Damascene Harindintwali Xiankui Zeng Haijun Wang Yuhao Fu zhong Wei Rainer Lohmann Changer Chen yang Song Concepcion Sanchez-Cid Yu Wang Ali El-Naggar Yiming Yao Yanran Huang Japhet Cheuk-Fung Law chenggang Gu Huizhong Shen Yanpeng Gao Chao Qin Hao Li Tong Zhang Natàlia Corcoll Min Liu Daniel SAlessi Hui Li Kristian KBrandt Yolanda Pico cheng Gu Jianhua Guo Jianqiang Su Philippe Corvini Mao Ye Teresa Rocha-Santos Huan he Yi yang Meiping Tong Weina Zhang Fidèle Suanon Ferdi Brahushi Zhenyu Wang Syed AHashsham Marko Virta Qingbin Yuan Gaofei Jiang Louis A.Tremblay Qingwei Bu Jichun Wu Willie Peijnenburg Edward Topp Xinde Cao Xin Jiang Minghui Zheng Taolin Zhang yongming Luo Lizhong Zhu Xiangdong Li DamiàBarceló Jianmin Chen Baoshan Xing Wulf Amelung Zongwei Cai Ravi Naidu Qirong Shen Janusz Pawliszyn Yong-guan Zhu Andreas Schaeffer Matthias C.Rillig Fengchang Wu Gang Yu James M.Tiedje state key laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China university of Chinese Academy of Sciences Beijing 100049China Department of Chemistry Hong Kong Baptist UniversityHong KongChina HKBU Institute of Research and Continuing Education Shenzhen Virtual University ParkShenzhenChina Technical university of Munich TUM School of Natural SciencesInstitute of Hydrochemistry85748 GarchingGermany school of resources&environment Northeast Agricultural UniversityHarbin 150030China Climate Air Quality Research UnitSchool of Public Health and Preventive MedicineMonash UniversityMelbourneVICAustralia Faculty of environmental Science&Engineering Kunming University of Science&TechnologyKunming 650500China Ministry of Education key laboratory of pollution Processes and environmental Criteria College of Environmental Science and EngineeringNankai UniversityTianjin 300350China Guangdong key laboratory of environmental Catalysis and health Risk control School of Environmental Science and EngineeringInstitute of Environmental Health and Pollution ControlGuangdong University of TechnologyGuangzhou 510006China Ministry of Education key laboratory of environmental Theoretical Chemistry South China Normal UniversityGuangzhouGuangdong 510006China Department of environmental Science Baylor UniversityWacoTXUSA Center for Reservoir and Aquatic Systems Research(CRASR) Baylor UniversityWacoTXUSA school of environment Tsinghua UniversityBeijing 100084China school of Civil and environmental Engineering Cornell UniversityIthacaNY 14853USA key laboratory of Microbial Technology for Industrial pollution control of Zhejiang Province Zhejiang University of TechnologyHangzhou 310014China school of environmental Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China Laboratoire d’Ecologie Microbienne Universite Claude Bernard Lyon 1UMR CNRS 5557UMR INRAE 1418VetAgro Sup69622 VilleurbanneFrance Department of Pla

environmental pollution is escalating due to rapid global development that often prioritizes human needs over planetary *** global efforts to mitigate legacy pollutants,the continuous introduction of new substances remains a major threat to both people and the *** response,global initiatives are focusing on risk assessment and regulation of emerging contaminants,as demonstrated by the ongoing efforts to establish the UN’s Intergovernmental Science-Policy Panel on Chemicals,Waste,and pollution *** review identifies the sources and impacts of emerging contaminants on planetary health,emphasizing the importance of adopting a One health *** for monitoring and addressing these pollutants are discussed,underscoring the need for robust and socially equitable environmental policies at both regional and international *** actions are needed to transition toward sustainable pollution management practices to safeguard our planet for future generations.

关键词： pollution planet contaminants

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我国流域监管中府际关系协调模式研究

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四川环境 2011年第4期30卷 128-131页

作者：沈国成万玉秋刘洁史文莱姜汝陶南京大学环境学院污染控制与资源化研究国家重点实验室南京210046

我国流域水资源管理实行流域管理与行政区域管理相结合的管理体制,但目前我国的流域监管体制中中央部委之间的主管与协管的矛盾、中央部委与地方政府之间的统管与分管的矛盾以及地方政府间区域利益的矛盾使得当前我国流域管理效率低下,... 详细信息

我国流域水资源管理实行流域管理与行政区域管理相结合的管理体制,但目前我国的流域监管体制中中央部委之间的主管与协管的矛盾、中央部委与地方政府之间的统管与分管的矛盾以及地方政府间区域利益的矛盾使得当前我国流域管理效率低下,水环境质量不容乐观。在我国目前的府际关系模式下,以上的府际关系矛盾短时间内难以消除,本文认为我国的流域监管体制改革中应着力构建以组织间网络为核心、以科层机制为保障、以市场机制为辅助的复合型协调模式,设立流域协调委员会,从而实现流域的一体化管理。

关键词：流域监管府际关系协调

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气相色谱-氮磷检测器分析痕量磷化氢

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分析测试学报 2004年第3期23卷 70-72页

作者：牛晓君王彩虹耿金菊韩圣惠冯建坊王晓蓉南京大学环境学院污染控制与资源化研究国家重点实验室江苏南京210093 中国科学院大气物理研究所北京100886

采用柱前两次冷阱富集和气相色谱 -氮磷检测器 (GC -NPD)法 ,测定了大气环境中存在的痕量磷化氢 ;在原有的冷阱富集装置中配置温度控制仪和夹套冷阱控温 ,可在线检测并控制磷化氢的富集温度 ,并可选择不同的温度范围将其与厌氧环境中普... 详细信息

采用柱前两次冷阱富集和气相色谱 -氮磷检测器 (GC -NPD)法 ,测定了大气环境中存在的痕量磷化氢 ;在原有的冷阱富集装置中配置温度控制仪和夹套冷阱控温 ,可在线检测并控制磷化氢的富集温度 ,并可选择不同的温度范围将其与厌氧环境中普遍存在的甲烷气体分离 ;该法的检出限为1.25×10-2pg。

关键词：气相色谱氮磷检测器磷化氢痕量温度甲烷富营养湖泊

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受污染河道疏浚泥浆离心脱水上清液净化工艺

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同济大学学报（自然科学版） 2002年第7期30卷 881-885页

作者：何品晶卞成林顾国维邵立明同济大学污染控制与资源化研究国家重点实验室上海200092 上海市杨浦区河道管理所上海200093

受污染河道吸入式水力疏浚泥浆经离心脱水可减量为易于运输与消纳的泥饼 ,但离心上清液含有以颗粒物为主的高质量分数的污染物 .为提供对上清液的有效净化工艺 ,通过实验研究 ,探索了最适混凝参数、旋流接触澄清过程的操作参数以及澄清... 详细信息

受污染河道吸入式水力疏浚泥浆经离心脱水可减量为易于运输与消纳的泥饼 ,但离心上清液含有以颗粒物为主的高质量分数的污染物 .为提供对上清液的有效净化工艺 ,通过实验研究 ,探索了最适混凝参数、旋流接触澄清过程的操作参数以及澄清—砂滤—超滤组合工艺的澄清效果 .实验结果显示 :依次加入聚合氯化铝(PAC) 10 0mg·L-1,聚丙烯酰胺 (PAM ) 30mg·L-1,双调理混凝能有效澄清颗粒物 ;双调理混凝旋流接触澄清在水力停留时间 2 5min时能有效去除离心上清液中的颗粒物 ;旋流澄清尾水经砂滤可达污水排放二级标准 ,再经超滤可达作生活杂用水的回用水质要求 .

关键词：受污染河道上清液净化工艺双调理混凝旋流接触澄清砂滤-超滤组合工艺受污染疏浚泥浆离心脱水水体整治

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The impact of water quality on the formation of halogenated benzoquinones and the adsorption efficiency by activated carbon

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Journal of environmental Sciences 2024年第1期135卷 693-702页

作者： Yongjing Wang Song Gao Xinyu Yan Songtao Wang Ruolin Zhang Yan Zhou Lianhai Ren cheng Li state environmental Protection key laboratory of Food Chain pollution control Beijing Technology and Business UniversityBeijing 100048China Institute of Scientific and Technical Information of china Beijing 100038China Institute of Quality Standard and Testing Technology Beijing Academy of Agriculture and Forestry SciencesBeijing 100097China key laboratory of Cleaner Production and Integrated resource Utilization of china.National Light Industry Beijing Technology and Business UniversityBeijing 100048China

Halogenated benzoquinones(HBQs)could cause bladder cancer,but there were few related studies on the generation and *** this study,the impact of different precursors,pH,bromide concentration,and algae-derived organic matters on the formation of HBQs and the removal efficiency by activated carbon were *** was found that the chlorination of bisphenol A produced the most 2,6-dichloro-1,4-benzoquinone(2,6-DCBQ),reaching 14.86μg/L at 1 hr,followed by tyrosine,2-chlorophenol,P-hydroxybenzoic acid,trichlorophenol,and *** production of 2,6-DCBQ increased first and then decreased from 0 to 36 hr(chlorination doses 0-20 mg/L),indicating that HBQs were unstable in ***(THMs)were detected during chlorination,and the concentration increased with prolongation of reaction time.2,6-DCBQ production decreased and 2,6-dibromo-1,4-benzoquinone(2,6-DBBQ)production increased with increment bromide concentration and the bromide promoted the formation of *** production of 2,6-DCBQ decreased with increase of pH,and the maximum production was 141.38μg/L at pH of *** aeruginosa,Chlorella algae cells,and intracellular organic matters(IOM)could be chlorinated as potential precursors for *** most amount of 2,6-DCBQ was generated from algae cells of Microcystis aeruginosa,followed by Chlorella algae cells,Microcystis aeruginosa IOM,and Chlorella *** study compared the removal efficiency of HBQs by granular activated carbon(GAC)and columnar activated carbon(CAC)under different carbon doses and initial concentrations of *** was found that the removal efficiency by GAC(80.1%)was higher than that by CAC(51.8%),indicating that GAC has better control for HBQs.

关键词： HBQS DBPS Drinking water Algae derived organic matters Activated carbon

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