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Simultaneous removal of Pb and MTBE by mixed zeolites in fixed-bed column tests

Journal of Environmental Sciences 2022年第12期34卷 41-49页

作者： Yunhui Zhang FeiWang Benyi Cao hailong yin Abir Al-Tabbaa College of Environmental Science and Engineering Tongji UniversityShanghai 200092China Key Laboratory of Yangtze River Water Environment Ministry of EducationTongji UniversityShanghai 200092China Department of Engineering University of CambridgeCambridgeCB21PZUK Institute of Geotechnical Engineering School of TransportationSoutheast UniversityNanjing 210096China State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control Nanjing Institute of Environmental SciencesMinistry of Ecology and Environment of ChinaNanjing 210042China

The co-contamination of metals and organic pollutants,such as Pb and methyl tert-butyl ether(MTBE),in groundwater,has become a common and major phenomenon in many contaminated *** study evaluated the feasibility of their simultaneous removal with permeable reactive barrier(PRB)packed with mixed zeolites(clinoptilolite and ZSM-5)using fixed-bed column tests and breakthrough curve *** effect of grain size on the permeability of PRB and removal efficacy was also assessed by granular and power *** replacement of granular clinoptilolite by powder clinoptilolite largely reduced the breakthrough time but increased the saturation time nearly *** column adsorption capacity of clinoptilolite powders almost tripled that of clinoptilolite granules(130.6mg/g versus 45.3 mg/g)due to higher specific surface *** minimum thickness and corresponding longevity of PRB were calculated as 7.12 cm and 321.5 min when 5%of granular clinoptilolite was mixed with 5%ZSM-5 and 90%sand as mixed PRB reactive media compared with 10.86 cm and 1230.2 min for the application of powder *** study is expected to provide theoretical support and guidance for the practical application of mixed adsorbents in PRBs.

关键词： MTBE Zeolite Heavy metal Permeable reactive barrier Groundwater remediation

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Identification of pollution sources in rivers using a hydrodynamic diffusion wave model and improved Bayesian-Markov chain Monte Carlo algorithm

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Frontiers of Environmental Science & Engineering 2023年第7期17卷 91-105页

作者： hailong yin Yiyuan Lin Huijin Zhang Ruibin Wu Zuxin Xu Key Laboratory of Yangtze River Water Environment of Ministry of Education Tongji UniversityShanghai 200092China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China Fujian Provincial Key Laboratory of Green Building Technology Fujian Academy of Building Research Co.Ltd.Fuzhou 350108China

Water quality restoration in rivers requires identification of the locations and discharges of pollution sources,and a reliable mathematical model to accomplish this identification is *** this paper,an innovative framework is presented to inversely estimate pollution sources for both accident preparedness and normal management of the allowable pollutant *** proposed model integrates the concepts of the hydrodynamic diffusion wave equation and an improved Bayesian-Markov chain Monte Carlo method(MCMC).The methodological framework is tested using a designed case of a sudden wastewater spill incident(i.e.,source location,flow rate,and starting and ending times of the discharge)and a real case of multiple sewage inputs into a river(i.e.,locations and daily flows of sewage sources).The proposed modeling based on the improved Bayesian-MCMC method can effectively solve high-dimensional search and optimization problems according to known river water levels at pre-set monitoring *** can adequately provide accurate source estimation parameters using only one simulation through exploration of the full parameter *** comparison,the inverse models based on the popular random walk Metropolis(RWM)algorithm and microbial genetic algorithm(MGA)do not produce reliable estimates for the two scenarios even after multiple simulation runs,and they fall into locally optimal *** much more water level data are available than water quality data,the proposed approach also provides a cost-effective solution for identifying pollution sources in rivers with the support of high-frequency water level data,especially for rivers receiving significant sewage discharges.

关键词： Identification of pollution sources Waterquality restoration Bayesianinference Hydrodynamic model Inverseproblem

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Performance evaluation on the pollution control against wet weather overflow based on on-site coagulation/flocculation in terminal drainage pipes

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Frontiers of Environmental Science & Engineering 2021年第6期15卷 201-210页

作者： Zongqun Chen Wei Jin hailong yin Mengqi Han Zuxin Xu College of Environmental Science and Engineering Tongji UniversityShanghai 200092China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China

The pollution caused by wet weather overflow in urban drainage systems is a main factor causing blackening an odorization of urban *** conventional overflow treatment based on coagulation/flocculation in terminal drainage systems requires relatively large space and long retention time demand that makes it not applicable in crowded urban drainage systems or under heavy ***-site coagulation/flocculation in terminal drainage pipes was proposed in this study which was aimed to transfer the coagulation/flocculation process to the inside of pipes at the terminal drainage system to save space and reduce the retention time of the coagulation/flocculation *** optimized dose of chemicals was studied first which was 80 mg/L of coagulant and 0.8 mg/L of *** for only 5 min can remove most of the pollutants at 406.5 m of transmission *** addition,the relation of wet weather overflow rate and concentration of pollution load on the on-site coagulation/flocculation process was investigated,which indicated that high removal of pollutant was gained at a large range of flow velocity and pollutant ***,the study confirmed electric neutralization,bridging,and net capture as the major mechanisms in this process,and further optimization was *** proposed process can reduce much turbidity,chemical oxygen demand,and total phosphorous,but hardly remove soluble ammonia and *** work provides scientific guidance to address wet weather overflow in terminal drainage pipes.

关键词： Wet weather overflow On-site coagulation/flocculation Fast removal of particulate pollutants

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黄浦江水环境模拟计算边界条件影响分析

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同济大学学报（自然科学版） 2006年第1期34卷 74-79页

作者：徐祖信尹海龙同济大学污染控制与资源化研究国家重点实验室上海200092

在大系统多尺度耦合模型基础上,细化黄浦江干流二维模型,分析了边界条件对黄浦江干流水环境模拟计算的影响,认为:黄浦江干流水动力条件主要受上游米市渡边界潮汐流量和下游吴淞口边界潮汐水位的影响,各支流汇入流量(即侧边界)基本不产... 详细信息

在大系统多尺度耦合模型基础上,细化黄浦江干流二维模型,分析了边界条件对黄浦江干流水环境模拟计算的影响,认为:黄浦江干流水动力条件主要受上游米市渡边界潮汐流量和下游吴淞口边界潮汐水位的影响,各支流汇入流量(即侧边界)基本不产生影响.黄浦江干流水质主要受上游米市渡来水、沿岸排放污染源的共同影响,其中黄浦江上游松浦大桥断面水质主要受上游米市渡来水的影响;黄浦江干流中游临江、南市水厂断面水质受上游米市渡来水、沿岸排放污染源的共同影响;黄浦江下游杨浦大桥断面水质主要受沿岸排放污染源的影响.

关键词：黄浦江水动力水质边界条件

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平面二维水质模型浓度场可视化研究

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同济大学学报（自然科学版） 2006年第10期34卷 1355-1359页

作者：尹海龙徐祖信同济大学污染控制与资源化研究国家重点实验室上海200092

以平面二维水质模型为基础,研究了二维水质模型浓度场的实现模式.技术特点在于:利用非规则网格描述复杂地形边界,采用有限元法离散求解模型方程,引入二次网格分割技术生成等值线等.以此为基础,自主开发了平面二维可视化水环境模拟软件,... 详细信息

以平面二维水质模型为基础,研究了二维水质模型浓度场的实现模式.技术特点在于:利用非规则网格描述复杂地形边界,采用有限元法离散求解模型方程,引入二次网格分割技术生成等值线等.以此为基础,自主开发了平面二维可视化水环境模拟软件,实现了浓度场的可视化动态演示,直观地展现了浓度场的变化过程,从而使决策者和研究人员易于从庞杂的数据中,整体把握污染物的迁移转化过程.

关键词：水质模型二维浓度场可视化

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城市排水系统智慧决策技术研究综述

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同济大学学报（自然科学版） 2021年第10期49卷 1426-1434页

作者：尹海龙张惠瑾徐祖信同济大学环境科学与工程学院上海200092

智慧决策是智慧水务的核心关键技术。围绕城市排水系统的提标增效,从管网诊断评估、城市内涝防治和雨天溢流污染控制3个方面,对城市排水系统智慧决策的实现模式进行了评述。在管网诊断评估方面,综述了基于水量、水质特征因子分区监测的... 详细信息

智慧决策是智慧水务的核心关键技术。围绕城市排水系统的提标增效,从管网诊断评估、城市内涝防治和雨天溢流污染控制3个方面,对城市排水系统智慧决策的实现模式进行了评述。在管网诊断评估方面,综述了基于水量、水质特征因子分区监测的水量来源溯源定位方法;在城市内涝防治方面,综述了基于数值化模型的内涝风险精细化模拟评估和机器学习模型的降雨实时预报、局部积水深度快速预报实现模式;在溢流污染控制方面,综述了基于多目标优化算法、数值模型和机器学习相结合的排水系统优化调度实现模式。模型系统的可靠性是智慧排水决策的关键,应重视管网水量来源定量解析和排水系统内涝风险预警、优化运行调度的融合。

关键词：智慧排水管网诊断城市内涝溢流污染优化调度

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裂解气压缩机轴承的安装与调试

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乙烯工业 2005年第3期17卷 39-42页

作者：尹海龙辽宁华锦集团盘锦乙烯工业公司盘锦124021

通过对离心式压缩机轴承原理与结构的论述,分析其检修中常见故障的成因,重点阐述了轴承安装与调试的技术要求和方法。

关键词：离心式压缩机轴承检修事故安装调试安装与调试裂解气压缩机常见故障求和方法

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基于水质特征因子和Monte Carlo理论的雨水管网混接诊断方法

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同济大学学报（自然科学版） 2015年第11期43卷 1715-1721,1727页

作者：徐祖信汪玲玲尹海龙同济大学污染控制与资源化研究国家重点实验室上海200092

基于水质特征因子法,引入蒙特卡罗理论,建立了分流制排水系统雨污混接诊断的定量分析方法.以上海市某混接分流制排水系统为研究对象,采用安赛蜜和总氮、氟化物、硬度分别作为表征生活污水、半导体工业废水和地下水混接的水质特征因子,... 详细信息

基于水质特征因子法,引入蒙特卡罗理论,建立了分流制排水系统雨污混接诊断的定量分析方法.以上海市某混接分流制排水系统为研究对象,采用安赛蜜和总氮、氟化物、硬度分别作为表征生活污水、半导体工业废水和地下水混接的水质特征因子,对雨水管网混接来源进行了解析.与观测值对比验证表明,由于蒙特卡罗方法考虑了混接来源中多个混接点空间质量浓度差异性以及测量误差等不确定性因素,与目前采用的确定性解析方法相比,可以显著提高解析结果的可靠性,在实现解析结果闭合的同时,解析误差能够控制在10%以内.据此,提出了建立水质特征因子数据库的指导原则.

关键词：水质特征因子雨污混接旱流污染蒙特卡罗分析化学质量平衡

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Compound Gaoziban tablet(复方高滋斑片) alleviates depression via toll-like receptor 4/myeloid differentiation factor 88/nuclear factor-kappa B pathway

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Journal of Traditional Chinese Medicine 2022年第6期42卷 956-964页

作者： ZOU Xinshuang SHI Lei yin hailong LI Haiping WANG Mengheng SONG Wanci LUO Laichun WU Hezhen YANG Yanfang ZAN Junfeng LIU Yanwen DAN Hanxiong yin Qiang YOU Pengtao Hubei Key Laboratory of Resources and Chemistry of Chinese Medicine Hubei University of Chinese MedicineHubei 430065China Xinjiang Uygur Pharmaceutical Co. Ltd.Urumqi 830001China

OBJECTIVE: To evaluate the effect of compound Gaoziban tablet(复方高滋斑片, CGZBT) on depression, and to investigate the underlying mechanism. METHODS: The components of CGZBT were analysed by high-performance liquid chromatography. Then, we assessed the effects of varying doses of CGZBT on an established chronic unpredictable mild stress(CUMS) model in rats. Whether animals were depressed was evaluated by sucrose preference test, open field test and forced swimming test. Neurotransmitters of hippocampus were detected by liquid chromatography-mass spectrometry. Serum levels of tumor necrosis factor-alpha(TNF-α), interleukin(IL)-1β, IL-6, IL-4, and IL-10 were measured by enzyme-linked immunosorbent assay. Expressions of toll-like receptor 4(TLR4), myeloid differentiation factor 88(My D88), phospho-nuclear factorkappa B(p-NF-κB), cyclooxygenase-2(COX-2), ionized calcium binding adapter molecule-1(IBA-1) were assessed by immunohistochemical staining and western blotting. RESULTS: Eight compounds were identified from CGZBT, moreover, our results showed that CGZBT effectively reversed the CUMS-induced decrease in sucrose preference, shortened the movement distance and prolonged immobility time. CGZBT significantly increased levels of 5-hydroxytryptamine, dopamine, norepinephrine, 5-hydroxyindoleacetic acid levels, and reduced the expression of TNF-α, IL-1β, IL-6, yet increased IL-4 and IL-10. Furthermore, the expressions of TLR4, My D88, COX-2, p-NF-κB and IBA-1 in hippocampus were effectively reversed after treatment with CGZBT. CONCLUSIONS: These results indicated that CGZBT could, at least in part, alleviate depression induced by CUMS via the TLR4/My D88/NF-κB pathway, suggesting its potential as an antidepressant drug.

关键词： depression toll-like receptor 4 myeloid differentiation factor 88 NF-kappa B chronic unpredictable mild stress compound Gaoziban tablet

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改性UV固化水性聚氨酯丙烯酸酯合成研究

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涂料工业 2012年第11期42卷 46-49页

作者：殷海龙卿宁江门职业技术学院广东江门529100 五邑大学化学与环境工程学院广东江门529020

采用异佛尔酮二异氰酸酯(IPDI)、聚醚硅氧烷二元醇(WACKER IM 22、IM15)/聚酯二元醇(7112)混合软段、二羟甲基丙酸(DMPA)/聚乙二醇(PEG600)混合亲水基(扩链剂)、季戊四醇三丙烯酸酯(PETA)等原料合成多官能度的综合改性UV固化水性聚氨酯... 详细信息

采用异佛尔酮二异氰酸酯(IPDI)、聚醚硅氧烷二元醇(WACKER IM 22、IM15)/聚酯二元醇(7112)混合软段、二羟甲基丙酸(DMPA)/聚乙二醇(PEG600)混合亲水基(扩链剂)、季戊四醇三丙烯酸酯(PETA)等原料合成多官能度的综合改性UV固化水性聚氨酯丙烯酸酯(WPUA);实验结果表明:采用阴/非离子混合型亲水基能提高WPUA产品稳定性,改性产品固化后膜的耐水性、耐碱性、耐溶剂性能明显提高,综合性能优良。

关键词：紫外光固化水性聚氨酯丙烯酸酯季戊四醇三丙烯酸酯有机硅

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