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Description of adsorption equilibrium of PAHs on hypercrosslinked polymeric adsorbent using Polanyi potential theory

引用

Science China Chemistry 2008年第6期51卷 586-592页

作者： LONG Chao LI AiMin HU DaBo LIU FuQiang ZHANG QuanXing State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing UniversityNanjing 210093China Engineering Technology Research Center of Organic Toxic Substance Control and Resource Reuse of Jiangsu Province Nanjing 210038China

In this research,static adsorption of three polycyclic aromatic hydrocarbons(PAHs),naphthalene,acenaphthene,and fluorene,from aqueous solutions onto hypercrosslinked polymeric adsorbent within the temperature range of 288-308 K is *** isotherm equations are correlated with the equilibrium data,and the experimental data is found to fit the Polanyi-Dubinin-Manes model best within the entire range of concentrations,providing evidence that pore-filling is the dominating sorption mechanism for *** study shows that the molecular size of adsorbates has distinct in-fluence on adsorption capacity of hypercrosslinked polymeric adsorbent for the PAHs;the larger the adsorbate molecular size,the lower the adsorption equilibrium *** on the Polanyi-Dubinin-Manes model,the molecular size of adsorbates was introduced to adjust the adsorbate molar *** of qv vs.(σε /Vs) are collapsed to a single correlation curve for different adsorbates on hypercrosslinked polymeric resin.

关键词： hypercrosslinked polymeric resin polycyclic aromatic hydrocarbons Polanyi potential theory

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Committee on Antimicrobial Efficacy Testing

引用

Journal of AOAC INTERNATIONAL 2010年第1期93卷 34B-37B页

作者： Agin, James Klein, Daniel Ascenzi, Joe M Blackburn, Tajah Lynette Hasan, Jafrul McManus, Candace Mulberry, Gayle Rodriguez, Allison Sehulster, Lynne M Suchmann, Donna B Rastogi, Vipin K Gomez, Eduardo LaBudde, Robert A Q Laboratories Inc. 1400 Harrison Ave Cincinnati OH 45214 STERIS Corp PO Box 147 Saint Louis MO 63166-0647 Johnson & Johnson Advanced Sterilization Products 33 Technology Dr Irvine CA 92618 U.S. Environmental Protection Agency Public Health Services 5708 Shadwell Ct Unit #102 Alexandria VA22309 U.S. Environmental Protection Agency 701 Mapes Rd Fort Meade MD 20755 U.S. Food and Drug Administration Center for Devices and Radiological Health Office of Compliance 2910 McGee Way Olney MD 20832 Hilltop Research Inc. Main and Mill Sts Miamiville OH 45147 U.S. Food and Drug Administration Winchester Engineering and Analytical Center 109 Holton St Winchester MA 01890 Centers for Disease Control and Prevention Division of Healthcare Quality Promotion Epidemiology and Laboratory Branch Mailstop A-35 1600 Clifton Rd NE Atlanta GA 30333 MicroBioTest Inc. 105B Carpenter Dr Sterling VA 20164 U.S. Army Edgewood Chemical Biological Center E 3150 Kingscreek St. N Aberdeen Proving Grounds MD 21010 U.S. Army Edgewood Chemical Biological Center Building 3150 Aberdeen Proving Grounds MD 21010 Least Cost Formulations Ltd 824 Timberlake Dr Virginia Beach VA 23464

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Analysis of pollutants in wastewater from manufacture of papermaking-reconstituted tobacco slice

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Huanan Ligong Daxue Xuebao/Journal of South China University of technology (Natural Science) 2008年第3期36卷 95-98页

作者： Hou, Yi Li, You-Ming Zheng, Zhen-Shan National Engineering Research Center of Papermaking and Pollution Control South China University of Technology Guangzhou 510640 China

In this paper, the pollutants in the wastewater from the manufacture of papermaking-reconstituted tobacco slice were analyzed via common chemical assays, FTIR and gas chromatography-mass spectrography (GC-MS). The results show that the wastewater is of complicated pollutants, high suspended sediment concentration, acidity pH and good biodegradation property, that the pollutants mainly include the hydrolysates of cellulose, hemicellulose and liglin, and that there exist some matters with low molecular mass, some non-volatile organic acids, nicotine, tar and phenols in the wastewater, which darkens the wastewater. The complete biodegradation of the above-mentioned components is the key to the successful wastewater treatment during the manufacture of papermaking-reconstituted tobacco slice.

关键词： Wastewater

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Forecasting of effects of new secondary-fibre paper mill on regional water environment

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Huanan Ligong Daxue Xuebao/Journal of South China University of technology (Natural Science) 2008年第12期36卷 80-84页

作者： Hou, Yi Liu, Ming-You Li, You-Ming Wang, Jiang-Lei National Engineering Research Center of Papermaking and Pollution Control South China University of Technology Guangzhou 510640 China

On the basis of the wastewater disposal evaluation of secondary-fibre paper mills in Yihuang County, Jiangxi, China, and by taking a planned secondary-fibre paper mill with an annual production of 100000 ton as the example, the effects of wastewater disposal on the water environment are investigated via modeling and forecasting, with CODCr and BOD5 as the control factors. The results show that secondary-fibre paper mills can be properly constructed in Yihuang because the wastewater disposal of the planned paper mill only slightly affects the regional water environment of the Yihuang River.

关键词： Forecasting

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RECOVERY OF p-AMINOPHENOL (PAP) FROM AQUEOUS SOLUTION BY HYPER-CROSS-LINKED RESIN AND ITS USE FOR WASTEWATER TREATMENT

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Chinese Journal of Reactive Polymers 2008年第1期17卷 18-28页

作者： ZHANG Haiyun LI Aimin School of the Environment and State Key Laboratory of Pollution Control and Resource Reuse Nanjing University Nanjing 210093 China Department of the Environmental Engineering Nanjing Institute of Technology Nanjing 211167 China Engineering Technology Research Center of Organic Pollutants Control and Resource reuse of Jiangsu Province Nanjing 210038 China

p-Aminophenol （PAP）, a typical amphoteric compound, has been widely used as raw chemical material and important interrnediate in various fields. To study on the recovery of PAP, an experimental comparison of the adsorption and desorption properties of PAP onto three types of hyper-cross-linked resins in aqueous solutions was performed. This paper focuses on the static equilibrium adsorption and desorption behaviors, the adsorption thermodynamics, the column dynamic adsorption and desorption, and other influencing factors of adsorption, such as temperature and pH values. All the isothermal data fit well to the Freundlich model. The capacity of equilibrium adsorption for PAP on NG-10 is the highest within the temperature range 288K-318K, which may greatly contribute to the advantage in specific surface area, especially the micropore area, of the adsorbent. While in the desorption experiments, NG-9 achieved relative well regeneration efficiency whether by ethanol or by 4% hydrochloric acid. Furthermore, the results of column tests and field applications were also proved that NG-9 was an effective sorbent for the reclamation PAP from wastewater.

关键词： Adsorption p-Aminophenol Hyper-cross-linked resin Recovery.

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Synchronization Criteria of Complex Dynamical Networks with Time-varying Delays

Synchronization Criteria of Complex Dynamical Networks with ...

引用

International Symposium on Knowledge Acquisition and Modeling, KAM

作者： Hongjie Li Dong Yue College of Information Science and Technology Donghua Uinversity Shanghai China College of Mathematics and Information Engineering Jiaxing University Jiaxing Zhejiang China Department of Control Science and Engineering Huazhong University of Science and Technology Wuhan Hubei China Research Center for Information & Control Engineering Technology Nanjing Normal University Nanjing Jiangsu China

A class of complex dynamical networks with time-varying coupling delays is investigated. By some transformation, the synchronization problem of the complex networks is transferred equally into the asymptotical stability problem of a group of uncorrelated delay functional differential equations. The delays considered in this paper are assumed to vary in an interval, some free weighting matrices are used to express the relationships among the system variables, and among the terms in the Leibniz-Newton formula. The sufficient condition for delay-dependent asymptotical synchronization stability is derived in the form of linear matrix inequalities. A numerical example is given to illustrate the theoretical results.

关键词： Linear matrix inequalities Complex networks Asymptotic stability Delay Sufficient conditions Symmetric matrices Educational institutions Differential equations Stability analysis Stability criteria

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Pinning control of Weighted General Complex Dynamical Networks with Coupling Delays

Pinning Control of Weighted General Complex Dynamical Networ...

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International Symposium on Knowledge Acquisition and Modeling, KAM

A class of weighted general complex dynamical networks with coupling delays is investigated. By some transformation, the synchronization problem of the complex networks is transferred equally into the asymptotical stability problem of a group of uncorrelated delay functional differential equations. control of such networks is investigated by applying local feedback injections to a fraction of network nodes for continuous time. Furthermore the less conservative sufficient condition for delay-dependent asymptotical synchronization stability is derived in the form of linear matrix inequalities based on the Finsler's Lemma. It is also shown that the whole networks can be stabilized by controlling only a few nodes. A numerical example is given to illustrate the theoretical results.

关键词： Weight control Complex networks Delay effects Asymptotic stability Linear matrix inequalities Biological system modeling Educational institutions Differential equations Sufficient conditions Power system modeling

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AC electronic load and its application in power system simulation

AC electronic load and its application in power system simul...

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IEEE Conference on Industrial Electronics and Applications (ICIEA)

作者： X. She Y. She C.Z. Wang Y.P. Zou Power Electronic Research Center College of Electric and Electronic Engineering Huazhong University of Science and Technology Wuhan Hubei China Lab of Advanced Control Technology Central South University Changsha China

A new method is introduced for simulating R, L, C load and power system steady state load based on SPWM power converter technology, and its control strategy is also proposed. Simulation results in this paper prove that such an AC-DC-AC converter can simulate the steady state and transient state performances of R, L, C load and the steady state performance of power system load very well. Besides, the simulation of motors and generators can be also accomplished by this principle and technology.

关键词：

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Decolorization of eucalyptus CTMP effluent by a new coagulant of ferric and aluminum

引用

Chung-kuo Tsao Chih/China Pulp and Paper 2008年第8期27卷 40-43页

作者： Zheng, Zhen-Shan Li, You-Ming Hou, Yi National Engineering Research Center of Papermaking and Pollution Control State Key Lab of Pulp and Paper Engineering South China University of Technology Guangzhou 510640 China

A new coagulant of ferric and aluminum alumina iron (HF) was used to decolorize the effluent of eucalyptus CTMP. The results showed that in the condition of pH value 4 to pH value 7 and the dosage of HF 4mL to 9mL per 100mL wastewater, the color of CTMP effluent decreases from 18700C.U. to 80C.U., the optimal condition of pH value 5 and the dosage of the coagulant 6 mL/100mLwas found by the orthogonal experiment. The analyses of UV/VIS spectrometer, FT-IR instrument and Zeta potential instrument showed that it is the reactions with the negative charge of lignin structure, the coagulant of ferric and aluminum has good decolorization effect.

关键词： Lignin

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The Study on Modeling and control of Double Carbonylation Reaction Process

The Study on Modeling and Control of Double Carbonylation Re...

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World Congress on Intelligent control and Automation (WCICA)

作者： Shi Zhang Feng Ding Nan Jiang College of Automation Nanjing University of Technology Nanjing Jiangsu China Control Science and Engineering Research Center Southern Yangtze University Wuxi Jiangsu China Xian Institute of Environmental Protection Xi'an Shaanxi China

The reaction discussed in this paper is a complicated, multi-phase-catalyzed batch reaction to produce phenyl-pyretic acid by double carbonylation of benzyl chloride. In order to industrialize the production process, a significant engineering problem is to study the operation and control of this batch process. The first stage of study in this paper is to process the experimental data, then to build the models based on the experimental operation of every batch with the artificial neural networks. These models, termed operation models, can reflect the operational characteristics of every operation process. But in the further simulation study, it was found that these models could not be successfully applied. The principal reason for this difficulty is that the experimental data used to model the reaction are too sparse. To solve this problem, we perform the second stage to build an intrinsic model. The ldquogray boxrdquo model, which is able to describe the characteristic of the batch process, is called an intrinsic model. Then in the third stage of this paper, we propose a multiple time scaled control strategy based on the intrinsic model. The major result of the simulation study suggests that the control system holds promise in engineering applications.

关键词： Absorption Data models Process control Mathematical model Artificial neural networks Kinetic theory control systems

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