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Study on Adsorption Removal of Polycyclic Aromatic Hydrocarbons by Modified Mussel Shells

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Meteorological and environmental Research 2024年第1期15卷 83-86页

作者： Jiaxing LIU Muchen LANG Mei LIU Kecun MA Qingguo CHEN Zhejiang Provincial Key Laboratory of Petrochemical pollution control Zhejiang Ocean UniversityZhoushan 316022China School of Petrochemical Engineering&environment Zhejiang Ocean UniversityZhoushan 316022China School of marine Science&Technology Zhejiang Ocean UniversityZhoushan 316022China ZPC(Zhejiang Pilot Free Trade Zone)Green Petrochemical Research Institute Co. Ltd.Zhoushan 316000China Zhejiang Petroleum&Chemical Co. Ltd.(ZPC)Zhoushan 316000China

Polycyclic aromatic hydrocarbons(PAHs)are typical persistent organic pollutants(POPs)that are commonly found in the *** are carcinogenic,teratogenic,mutagenic and biodegradable *** this paper,the modified mussel shells were used to adsorb and remove *** results show that the adsorption removal rate of the mussel shells was higher after calcination at 600℃.5%H_(3)PO_(4) solution was more suitable for shell treatment than 3 mol/L ZnCl_(2) *** the dosage of the modified shells was 0.5 g/L,the adsorption reached a stable state,and the removal rate of PAHs was about 69.44%;the adsorption efficiency rose with the increase of *** can be seen that as a new and cheap biological adsorbent,the modified shells can be used to remove PAHs from wastewater.

关键词： Mussel shells Adsorption Polycyclic aromatic hydrocarbons

Spatial and temporal variation of haze in China from 1961 to 2012

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Journal of environmental Sciences 2016年第8期28卷 134-146页

作者： Rui Han Shuxiao Wang Wenhai Shen Jiandong Wang Kang Wu Zhihua Ren Mingnong Feng National Meteorological Information Center China Meteorological Administration State Key Joint Laboratory of environment Simulation and pollution control School of Environment Tsinghua University State environmental Protection Key Laboratory of Sources and control of Air pollution Complex department of Precision Instrument Tsinghua University

The purpose of this study is to analyze the climatic characteristics and long-term spatial and temporal variations of haze occurrence in China. The impact factors of haze trends are also discussed. Meteorological data from 1961 to 2012 and daily PM10 concentrations from2003 to 2012 were employed in this study. The results indicate that the annual-average hazy days at all stations have been increasing rapidly from 4 days in 1961 to 18 days in 2012. The maximum number of haze days occur in winter（41.1%） while the minimum occur in summer（10.4%）. During 1961-2012, the high occurrence areas of haze shifted from central to south and east regions of China. The Beijing-Tianjin-Hebei（Jing-Jin-Ji） region, Shanxi,Shaanxi, and Henan Province are the high occurrence areas for haze, while the Yangtze River Delta（YRD） and the Pearl River Delta（PRD） have become regions with high haze occurrences in the last 25 years. Temperature and pressure are positively correlated with the number of haze days. However, wind, relative humidity, precipitation, and sunshine duration are negatively correlated with the number of haze days. The key meteorological factors affecting the formation and dissipation of haze vary for high and low altitudes, and are closely related to anthropogenic activities. In recent years, anthropogenic activities have played a more important role in haze occurrences compared with meteorological factors.

关键词： China Haze Spatial distribution Interannual trend Meteorological factors Anthropogenic activities

Adsorption of phenolic compounds from aqueous solutions by aminated hypercrosslinked polymers

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Journal of environmental Sciences 2007年第2期19卷 135-140页

作者： JIANG Zhen-mao LI Ai-min CAI Jian-guo WANG Chun ZHANG Quan-xin The State Key Laboratory of pollution control and Resource Reuse Department of Environment Engineering Nanfing University Nanfing 210093 China Jiangsu Engineering and Technology Research Center of Organic pollution control and Resource Reuse Nanjing 210046 China

Two novel polymers （NJ-1 and N J-2） were synthesized by chemically modified a hypercrosslinked polymer NJ-0 with dimethylamine and trimethylamine, respectively. The comparison of the adsorption properties of the three polymers toward phenol, resorcin and phloroglucin was made. The study focused on the static equilibrium adsorption behaviors and the adsorption thermodynamics. Freundlich equation was found to fit the adsorption results well. The effect of amino groups introduced onto the surface of the resin and the structure of phenolic compounds on the adsorption were also studied. The hydrogen-bonding interaction and electrostatic interaction could happen between the amino groups and the adsorbates. The adsorption impetus increased as quantity of hydroxyl groups increased, but the adsorption capacity decreased due to the drop of the matching degree of the aperture of resins and the diameter of adsorbate molecules.

关键词： hypercrosslinked polymer phenolic compounds amino groups modified static adsorption

Variation characteristics of acid rain in Zhuzhou,Central China over the period 2011-2020

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Journal of environmental Sciences 2024年第4期138卷 496-505页

作者： Jiahao Ren Liquan Zhu Xi Zhang Yuqian Luo Xuecai Zhong Bowen Li Yuwen Wang Kai Zhang State Key Laboratory of environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China Zhuzhou environment Monitoring Center Zhuzhou 412000China Faculty of environmental Engineering The University of Kitakyushu1–1 HibikinoWakamatsuKitakyushuFukuoka 808-0135Japan College of Natural Resources and environment South China Agricultural UniversityGuangzhou 510642China

Zhuzhou was one of the most polluted cities in China with the serious acid *** to the implementation of air pollution control measures from 2016 to 2018,the acid rain pollution in this city has *** order to understand the recent situation,a comprehensive study on the acid rain was carried out from January 2011 to December *** pH values during the study period varied from 3.3 to 7.5,with a volume-weighted mean value of *** predominant acidic components of the precipitation were SO_(4)^(2-)and NO_(3)^(-),accounting for 89.3% of the total *** ratio of non-sea-salt SO_(4)^(2-)to NO_(3)^(-)showed a decreasing trend,revealing that the pollution type of acid rain changed from sulfuric acid type to sulfuric acid and nitric acid compound *** correlation analysis(p<0.05)showed that SO_(4)^(2-)was positively correlated with NH_(4)^(+),Ca^(2+),and Mg^(2+);hence,it predominated in precipitation as(NH_(4))_(2)SO_(4),NH_(4)HSO_(4),CaSO_(4),and MgSO_(4).Significant positive correlation of Ca^(2+)with Mg^(2+)shows that they may originated mainly from *** positive correlation between SO_(4)^(2-)and F^(-)and Cl^(-)indicate that their source may be related to the non-ferrous metal smelting industry in *** correlation analysis shows that emissions from the non-ferrous metal smelting industry in the area have a large significant on SO_(4)^(2-)and F^(-)in precipitation,while Cl^(-)may still be emitted from other anthropogenic sources.

关键词： Acid rain pH Chemical composition Neutralization factor Correlation analysis

Recent progress of radionuclides separation by porous materials

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Science China Chemistry 2024年

作者： Yinghui Xie Long Yu Long Chen Cheng Chen Li Wang Fenglei Liu Yun Liao Peng Zhang Tao Chen Yihui Yuan Yuexiang Lu Boyang Huang Hui Yang Suhua Wang Shuao Wang Lijian Ma Feng Luo Yunhai Liu Baowei Hu Hongqing Wang Duoqiang Pan Wenkun Zhu Ning Wang Zhe Wang Liang Mao Shengqian Ma Xiangke Wang State Key Laboratory of marine Resource Utilization in South China Sea Collaborative Innovation Center of Marine Science and Technology Hainan University Institute of Nuclear and New Energy Technology Tsinghua University State Key Laboratory of pollution control and Resource Reuse School of the Environment Nanjing University department of Chemistry University of North TexasDenton Guangdong Provincial Key Laboratory for Green Agricultural Production and Intelligent Equipment School of Environmental Science and Engineering Guangdong University of Petrochemical Technology School of Life Science Shaoxing University College of environmental Science and Engineering North China Electric Power University State Key Laboratory of Radiation Medicine and Protection School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions Soochow University College of Chemistry Sichuan University School of Chemistry and Materials Science East China University of Technology School of Chemistry and Chemical Engineering University of South China Frontiers Science Center for Rare Isotopes Lanzhou University State Key Laboratory of environment-friendly Energy Materials National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety Sichuan Civil-military Integration Institute School of National Defence & Nuclear Science and TechnologySouthwest University of Science and Technology

The separation of radionuclides is critical for the sustainable development of nuclear energy. It is urgent to design and prepare functionalized materials for efficient radionuclides separation. Porous materials are considered excellent candidates for the separation of radionuclides under complex conditions due to their high specific surface areas, tunable pore structures and controllable functionalities. In this review, we summarized the design, preparation and functionalization of porous materials and their application for separation of radionuclides in the past five years, discussed the separation performance and analyzed the structure-activity relationship between various radionuclides and porous materials, and systematically clarified their characterization and mechanism of different type porous materials. We also introduced the detection, irradiation and chemical toxicity of different reflective radionuclides.

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An overview for monitoring and prediction of pathogenic microorganisms in the atmosphere

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Fundamental Research 2024年第3期4卷 430-441页

作者： Jianping Huang Danfeng Wang Yongguan Zhu Zifeng Yang Maosheng Yao Xiaoming Shi Taicheng An Qiang Zhang Cunrui Huang Xinhui Bi Jiang Li Zifa Wang Yongqin Liu Guibing Zhu Siyu Chen Jian Hang Xinghua Qiu Weiwei Deng Huaiyu Tian Tengfei Zhang Tianmu Chen Sijin Liu Xinbo Lian Bin Chen Beidou Zhang Yingjie Zhao Rui Wang Han Li Collaborative Innovation Center for Western Ecological Safety College of Atmospheric SciencesLanzhou UniversityLanzhou 730000China Research Center for Eco-environmental Sciences Chinese Academy of SciencesBeijing 100085China National Clinical Research Center for Respiratory Disease Guangzhou Institute of Respiratory HealthFirst Affiliated Hospital of Guangzhou Medical UniversityState Key Laboratory of Respiratory Disease(Guangzhou Medical University)Guangzhou 510230China College of environmental Sciences and Engineering Peking UniversityBeijing 100871China China CDC Key Laboratory of environment and Population Health National Institute of Environmental HealthChinese Center for Disease Control and PreventionBeijing 100021China Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health School of Environmental Science and EngineeringInstitute of Environmental Health and Pollution ControlGuangdong University of TechnologyGuangzhou 510006China Ministry of Education Key Laboratory for Earth System Modeling Department of Earth System ScienceTsinghua UniversityBeijing 100084China Vanke School of Public Health Tsinghua UniversityBeijing 100084China State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of environmental Protection and Resources Utilization Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Center for Pan-third Pole environment Lanzhou UniversityLanzhou 730000China College of Atmospheric Sciences Lanzhou UniversityLanzhou 730000China School of Atmospheric Sciences Sun Yat-sen Universityand Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai)Zhuhai 510640

Corona virus disease 2019(COVID-19)has exerted a profound adverse impact on human *** have demonstrated that aerosol transmission is one of the major transmission routes of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2).Pathogenic microorganisms such as SARS-CoV-2 can survive in the air and cause widespread infection among *** monitoring of pathogenic microorganism transmission in the atmosphere and accurate epidemic prediction are the frontier guarantee for preventing large-scale epidemic *** of pathogenic microorganisms in the air,especially in densely populated areas,may raise the possibility to detect viruses before people are widely infected and contain the epidemic at an earlier *** multi-scale coupled accurate epidemic prediction system can provide support for governments to analyze the epidemic situation,allocate health resources,and formulate epidemic response *** review first elaborates on the effects of the atmospheric environment on pathogenic microorganism transmission,which lays a theoretical foundation for the monitoring and prediction of epidemic ***,the monitoring technique development and the necessity of monitoring pathogenic microorganisms in the atmosphere are summarized and ***,this review introduces the major epidemic prediction methods and highlights the significance to realize a multi-scale coupled epidemic prediction system by strengthening the multidisciplinary cooperation of epidemiology,atmospheric sciences,environmental sciences,sociology,demography,*** summarizing the achievements and challenges in monitoring and prediction of pathogenic microorganism transmission in the atmosphere,this review proposes suggestions for epidemic response,namely,the establishment of an integrated monitoring and prediction platform for pathogenic microorganism transmission in the atmosphere.

关键词： Aerosol transmission Epidemic monitoring methods Epidemic prediction modelsEpidemic response Multidisciplinary cooperation

Critical review in adsorption kinetic models

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2009年第5期10卷 716-724页

作者： Hui QIU Lu LV Bing-cai PAN Qing-jian ZHANG Wei-ming ZHANG Quan-xing ZHANG State Key Laboratory of pollution control and Resource Reuse Department of Environmental Engineering School of the Environment Nanjing University Nanjing 210093 China

Adsorption is one of the most widely applied techniques for environmental remediation. Its kinetics are of great significance to evaluate the performance of a given adsorbent and gain insight into the underlying mechanisms. There are lots of references available concerning adsorption kinetics, and several mathematic models have been developed to describe adsorption reaction and diffusion processes. However, these models were frequently employed to fit the kinetic data in an unsuitable or improper manner. This is mainly because the boundary conditions of the associated models were, to a considerable extent, ignored for data modeling. Here we reviewed several widely-used adsorption kinetic models and paid more attention to their boundary conditions. We believe that the review is of certain significance and improvement for adsorption kinetic modeling.

关键词： Adsorption kinetics Reaction models Diffusion models Film diffusion Intraparticle diffusion

Releasing characteristics of phosphorus and other substances during thermal treatment of excess sludge

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Journal of environmental Sciences 2007年第10期19卷 1153-1158页

作者： XUE Tao HUANG Xia department of environmental Science and Engineering State Key Joint Laboratory of Environment Simulation and Pollution Control Tsinghua University Beijing 100084 China

The releasing characteristics of phosphorus, nitrogen compounds, organics, and some metal cations during thermal treatment of excess sludge were investigated. It was found that during heating not only phosphorus, but also nitrogen compounds, organics, and some metal cations could be released in abundance. The maximum orthophosphate （ortho-P） release of about 90 mg/L in concentration was observed at 50℃ in 1 h. Except for volatile fatty acids （VFAs）, comparatively little total nitrogen （TN）, total organic carbon （TOC）, and metal cations were released at the same time. Such results might favor further process of phosphorus recovery. VFAs were considerably released only at 50℃. Acetic, butyric, and propionic acid were the most abundant components in turn and their releasing profiles exhibited good linear relationship with time （R2 = 0.9977, 0.9624, and 0.8908, respectively）. The concentrations of Mg^2＋ and K^＋ increased with time and temperature during thermal treatment, but Ca^2＋ decreased. The release of Mg^2＋ and K^＋ agreed well with TP release （R^2 = 0.9892 and 0.9476, respectively）. Temperature in the experimental range had very little impact on the linear relationships, especially of Mg^2＋. Moreover, the parameter of mixed liquor suspended solids （MLSS） was found to be an important factor for thermal sludge treatment as the released ortho-P and total phosphorus （TP） at 50℃ increased more than one-fold when MLSS was increased from 4000 to 8000 mg/L.

关键词： phosphorus recovery excess sludge volatile fatty acids (VFAs) metal cations

Examining the Experiences and Challenges of Haze-Fog Governance in China

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Journal of Geoscience and environment Protection 2024年第4期12卷 45-58页

作者： Renrui Wang department of Geography and environment London School of Economics and Political Science London UK

With the rapid development of industrialisation and urbanisation, China is facing the challenge of severe HF (Haze-Fog) pollution. This essay compares the advantages and disadvantages of China’s HF management and summarizes the important lessons China can teach the rest of the world about applying this tactic. China’s capabilities in the digital economy, National Innovation Demonstration Zones, and urban innovation systems are examined in this article, along with its shortcomings in information mechanisms and pollution sources. This essay also summarizes China’s achievements, particularly regarding local autonomy. The essay goes on to say, however, that China is probably going to be under more pressure to manage HF in the future, both in terms of long-term solutions and the economy.

关键词： Haze-Fog control Digital Economy National Innovation Demonstration Zones Local Autonomy