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作者： Fang, Xiaoyan Liu, Chuan Liu, Rutao Teng, Yue Shandong Key Laboratory of Water Pollution Control and Resource Reuse School of Environmental Science and Engineering China-America CRC for Environment and Health Shandong University 27# Shanda South Road Jinan 250100 Shandong Province China

The effects of sodium oleate on Bovine Serum Albumin (BSA) were investigated by fluorescence, synchronous fluorescence, ultraviolet-visible and circular dichroism spectroscopy. According to the experiment results, we found that the fluorescence intensity of BSA was quenched by sodium oleate following a static mode, a sodium oleate-BSA complex was formed and the binding site was calculated approximately equal to 1. The experimental results showed that the hydrophilic group (-COONa) can bind to the BSA and lead to the looser of the protein conformation, the microenvironment and the secondary structure elements were changed in the presence of sodium oleate. This work reflected the toxic interaction mechanism of BSA and sodium oleate from the perspective of spectroscopy. © Springer Science+Business Media, LLC 2011.

关键词： Circular dichroism spectroscopy

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ADSORPTION STUDIES OF TANNIC ACID BY COMMERCIAL ESTER RESIN XAD-7

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Chinese Journal of Polymer Science 2010年第2期28卷 231-239页

作者：李爱民 State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing University Research Center of Organic Toxic Substance Control and Resource reuse of Jiangsu Province

Tannic acid and its related compounds are known as refractory organic pollutants, and it can create serious problems for the environment. The adsorption and desorption studies of tannic acid on commercial resins XAD-7 and D-201 are performed, and all data indicates resin XAD-7 can be used as an effective adsorbent for removing tannic acid during water/wastewater treatment. Furthermore, adsorption thermodynamics studies indicate different adsorption mechanisms for TA on XAD-7 and D-201. FT-IR and solid state 13C-NMR spectroscopy are used to explain the adsorption force between XAD-7 and TA. It suggests that hydrogen bonding is the main adsorption force for TA. Finally, XAD-7＇s adsorption capacity in the presence of different metal ions is investigated, which indicates that heavy metal ions in solutions can decrease the adsorption capacity for TA on ester resin XAD-7.

关键词： Adsorption Tannic acid Resin XAD-7 Metal ion.

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ADSORPTION OF HUMIC SUBSTANCES BY MACRO WEAKLY BASIC IONEXCHANGE RESIN AND THEIR EFFECTS ON REMOVAL OF Cu^(2+) AND Pb^(2+)

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Chinese Journal of Polymer Science 2010年第3期28卷 427-435页

作者：李爱民 State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Research Center of Organic Toxic Substance Control and Resource Reuse of Jiangsu Province

Adsorption of humic, tannic and gallic acids by a macro weakly basic ion-exchange resin JN-01 was studied. The adsorption capacity of this resin for gallic and tannic acids is much higher than that for humic acid, which can be explained on the basis of both their molecular size and ionization degree. Furthermore, humic acid is separated into different components with molecular weight in the range from 2000 Da to 100000 Da by ultra-filter, and their adsorption isotherms on resin JN-01 indicate that humic acid＇s molecular weight is an important factor which makes significant influence on adsorption. Finally, changes in the amount of Cu^2＋ and Pb^2＋ adsorbed on resin JN-01 as a function of the concentration of each of these three acids were studied. A large increase in the heavy metal ions uptake is observed in the presence of humic substance, such advantages are due to the interactions between the heavy metal ions and the unbound functional groups of the adsorbed organic acids.

关键词： Adsorption Humic substance Macro weakly basic ion-exchange resin Removal Heavy metal

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Denitrifying phosphorous removal in anaerobic/anoxic SBR system with different startup operation mode

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Journal of Harbin Institute of Technology(New Series) 2010年第6期17卷 824-829页

作者：姜欣欣杨基先马放杨菲菲魏利尹军 State Key Laboratory of Urban Water Resource and Environment Harbin Institute of Technology Dept.of Environmental Science Liaoning University Jilin Province Key Laboratory of Water Pollution Control and Resources Reuse Jilin Architectural and Civil Engineering Institute

To achieve stable and efficient nitrogen and phosphorus removal and to investigate the characteristics of the A/A SBR enriched with denitrifying phosphorus removal bacteria(DPB),the whole course of startup was studied with two reactors operated in different *** reactor I was operated under anaerobic/settling/anoxic/settling mode,and the reactor II was operated under anaerobic/anoxic/settling *** between the two reactors in removal efficiency of COD,nitrogen and phosphorus were *** results indicated that efficient performance could be achieved in both reactors with different startup operation mode,while the phosphorus removal efficiency was improved sooner in reactor I than in reactor II,which suggested that reactor I would supply a more favorable condition for DPB ***,it was observed that the amount of organic substrates consumption had a linear correlation to that of phosphorus release in anaerobic phase when DPB was accumulated in the A/A SBR denitrifying phosphorus removal system.

关键词： enhanced biological phosphorous removal anaerobic/anoxic SBR denitrifying phosphorous removing bacteria startup operation

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Thermodynamics of Zn(II)-NaOH-H2O system

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上海大学学报(英文版) 2010年第5期14卷 332-336页

作者： LIU Qing ZHAO You-cai ZHAO Guo-dong School of Urban Construction University of South China Hengyang 421001 HunanP. R. China The State Key Laboratory of Pollution Control and Resource Reuse Tongji University Shanghai 200092 P. R. China The State Key Laboratory of Pollution Control and Resource Reuse Tongji University Shanghai 200092 P. R. China School of Nuclear Resource and Nuclear Fuel Engineering University of South China Hengyang 421001 P. R. China

According to the principles of simultaneous equilibrium and electronic charge neutrality, the thermodynamics of Zn(II)-NaOH-H2O system was studied in this paper. Varying the concentration of sodium hydroxide, in range of 0-400 g/L, the distribution law of all zinc species and the mathematical model of equilibrium concentration of zinc in the system were obtained. The relative errors between theoretic calculation and the experimental values of total concentration of zinc were analyzed, and the absolute average error is only 0.129 8%. The mathematical model and the thermodynamic data are believable.

关键词： thermodynamics Zn(II)-NaOH-H2O zinc equilibrium

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Assessing Alternatives for Sustainable Management of A Flood control Dam

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Procedia Environmental Sciences 2010年 2卷 98-110页

作者： Meng Yang Xin Qian Yuchao Zhang Jinbao Sheng Dengle Shen State Key Laboratory of Pollution Control and Resource Reuse School of Environment Nanjing University Nanjing P. R. China Dam Safety Management Department The Ministry of Water Resources of China Hydraulic Investigation and Design Institute of Anhui Province The Ministry of Water Resources of China

Dam decay provides opportunity to restore degraded ecosystems. When choose an alternative to manage a dangerous dam to ensure dam safety and satisfy other human needs, ecological needs should be considered. In this paper, based on sustainable management goal, alternatives for managing a small flood control dam were assessed from improving dam safety, controlling flood and restoring riparian vegetation. Impacts on dam safety were quantified by an index integrating social influences from dam break flood inundation. Capability to control flood was assessed based on reservoir routing and hydrologic modeling. Opportunity to recover riparian vegetation was quantified by an index representing hydrologic alterations to natural flow regime. Final priority of each alternative was then obtained by multiplicative synthesis. Synthesization results indicated the decreasing dam height alternative had the highest priority to achieve the sustainable goal, because it flexibly regulated inflows for ecological considerations within the limits of flood control standard.

关键词： Dam reinforcement dam removal natural flow regime water resource management Yangtze watershed

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STUDIES ON THE ADSORPTION OF PHENOLIC COMPOUNDS ON A PS-BASED RESIN MODIFIED BY NITRO FUNCTIONAL GROUPS

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Chinese Journal of Polymer Science 2008年第6期26卷 713-721页

作者：李爱民 State Key Laboratory of Pollution Control andResource Reuse School of the EnvironmentNanjing University Research Center of Organic Toxic Substance Control and Resource Reuse of Jiangsu Province

A new adsorbent (JN-01) was prepared by modifying resin NDA-1800 with nitro functional *** adsorption capacities of resins XAD-4,NDA-1800 and JN-01 were investigated,and the results indicated that the modified resin JN-01 was much better in adsorbing phenol,p-nitrophenol and *** adsorption capacities of the resin JN-01 were higher than those of the resins XAD-4 and NDA-1800 within a temperature range of 283-323 K,which might be attributed to the higher surface area and the partial polarity o...

关键词： Nitro-modified Resin Adsorption Phenolic compounds.

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

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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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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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Adsorption selectivity of salicylic acid and 5-sulfosalicylic acid onto hypercrosslinked polymeric adsorbents

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Frontiers of Environmental Science & Engineering 2007年第1期1卷 73-78页

作者： LIU Fuqiang XIA Mingfang FEI Zhenghao CHEN Jinlong LI Aimin State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing UniversityNanjing 210093China Research Institute of Environmental Sciences of Jiangsu Province Nanjing 210036China Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection Department of Chemistry of Yancheng Teachers CollegeYancheng 224002China

Both bottle-point and column-feeding experi-ments involving different solutes and sorbents were carried out to investigate the adsorption selectivity and separation performance of salicylic acid and 5-sulfosalicylic *** adsorption isotherms onto such hypercrosslinked polymeric adsorbents as NDA-100 and NDA-99 could be well described by the Freundlich equations whose characteristics describe extrathermic and favorable adsorption *** adsorp-tion towards NDA-100 mainly depended on the p-p interac-tion,while that towards NDA-99 was extremely influenced by the static-electric ***,the adsorptive capacity of salicylic acid on NDA-99 decreased while it increased on NDA-100 with the presence of 5-sulfosalicylic acid in the adsorptive environment as the competitive ***,the adsorption capacity of 5-sulfosalicylic acid decreased on both resins with salicylic acid as the competitive *** fact,the difference in the interaction between adsorbent and adsorbate resulted in the straight antagonism on the effective adsorption sites on the *** conclusion,the adsorption selectivity of salicylic acid onto NDA-100 was obviously larger than that onto NDA-99 with the existence of 5-sulfosalicylic acid in the adsorptive environment.A satisfactory separation and recovery of tested solutes in aqueous phase could be foresee-ably achieved by the sequencing adsorption technique involving NDA-100 as well as NDA-99.

关键词： salicylic acid 5-sulfosalicylic acid hyper-crosslinked polymeric adsorbent adsorption selectivity sequencing adsorption technique

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