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3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009

作者： Lei, Wang Linyu, Xu State Key Laboratory of Environmental Simulation and Pollution Control School of Environment Beijing Normal University Beijing China

ISBN: (纸本)9781424429028

With the rapid economic development, the level of energy utilization is raising quickly, which results in a series of environmental problems. Urban ecosystem, as the major consumer of energy and key point of environmental pollution control, has to carry out environmental performance evaluation in energy utilization to reconcile the economic growth with ecological preservation. This paper aims at providing an overview and a critical analysis on the environmental performance of urban energy utilization. Several methods in environmental performance evaluation of energy utilization, including energy ecological footprint, input-output analysis, fuzzy synthetic evaluation method and emergy & exergy analysis are introduced and analyzed. Based on the analysis of these studies and features of urban ecosystem, we propose several suggestions concerning how to construct a comprehensive environmental performance evaluation model in urban energy utilization, which therefore can support the sustainable economic-energy-environment development of the city with scientific and systematic decision-making. ©2009 IEEE.

关键词： Energy utilization

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Effects of chlorine disinfection on biotoxicity of reclaimed wastewater

Effects of chlorine disinfection on biotoxicity of reclaimed...

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Water Quality Technology Conference and Exposition 2009

作者： Hu, Hong-Ying Wu, Qian-Yuan Sun, Ying-Xue Wang, Li-Sha Tian, Jie Environmental Simulation and Pollution Control State Key Joint Laboratory Department of Environmental Science and Engineering Tsinghua University Beijing 100084 China

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Time series analysis on ecological competitive capacity of Beijing using emergy synthesis

Time series analysis on ecological competitive capacity of B...

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International Conference on Management and Service Science, MASS 2009

作者： Zhang, Lixiao Yang, Zhifeng State Key Joint Laboratory of Environmental Simulation and Pollution Control School of Environment Beijing Normal University Beijing 100875 China

ISBN: (纸本)9781424446391

An emergy-based analysis was conducted to investigate evolvement of the ecological competitive capacity of Beijing with regard to urban evolution and city development from 1990 to 2005. A newly integrated indicator, Ecological Competitive Capacity Index (ECCI) was established by combing conventional emergy indices of percentage of local renewable resource, emergy self-sufficient ratio, emergy/money ratio and waste emergy ratio, to reflect the overall performance of urban system with respect to their long term sustainability. The result shows that the intensity, structure, efficiency and their environmental impact associated with urban emergy use have exhibited diversified changing tendency. However, the ECCI has decreased with fluctuation from 1990 to 1999, but remains relative stable after 1999. The maximum vale of 1 can be found in 1991 while the minimum value of 0 in 1997 among the concerned years. How to enhance the urban ecological capacity and strengthen the capability of sustainable development is an urgent issue confronted by large cities as Beijing. ©2009 IEEE.

关键词： Time series analysis

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Use of submerged anaerobic-anoxic-oxic membrane bioreactor to treat highly toxic coke wastewater with complete sludge retention

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Journal of Membrane Science 2009年第1-2期330卷 57-64页

作者： Zhao, Wen-Tao Huang, Xia Lee, Duu-Jong Wang, Xiao-Hui Shen, Yue-Xiao State Key Joint Laboratory of Environment Simulation and Pollution Control Department of Environmental Science and Engineering Tsinghua University Beijing 100084 China Chemical Engineering Department National Taiwan University Taipei 106 Taiwan

Coke wastewater is an extremely toxic industrial effluent that requires treatment before discharge. A bench-scale, anaerobic-anoxic-oxic membrane bioreactor (A1/A2/O-MBR) system was utilized to treat real coke wastewater with complete sludge retention. In a 160-d test, the A1/A2/O-MBR system stably removed 87.9 ± 1.6% of chemical oxygen demand, 99.4 ± 0.3% of turbidity, and 99.7 ± 3.5% of NH4+-N from coke wastewater. The membrane rejected almost all suspended solids;hence, a low food-to-microorganism environment was created to degrade refractory substances and reduce sludge production rates. The microbial diversity in the MBR system declined over time;however, neither pollutant removal efficiency nor total biological activity was adversely affected. Membrane fouling, which occurred during the operation of the MBR system, was principally resulted from the colloidal fraction of supernatant in suspension. Physical cleaning removed initial deposits of particles;however, prolonged operation resulted in severe clogging that can only be removed by chemical cleaning. An A1/A2/O-MBR system with short intermittent physical cleaning was recommended for coke wastewater treatment. © 2009 Elsevier B.V. All rights reserved.

关键词： Bioreactors

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Enhanced treatment of coke plant wastewater using an anaerobic-anoxic-oxic membrane bioreactor system

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Separation and Purification Technology 2009年第2期66卷 279-286页

作者： Zhao, Wen-tao Huang, Xia Lee, Duu-jong State Key Joint Laboratory of Environment Simulation and Pollution Control Department of Environmental Science and Engineering Tsinghua University Beijing 100084 China Chemical Engineering Department National Taiwan University Taipei 106 Taiwan

A laboratory-scale anaerobic-anoxic-oxic membrane bioreactor (A1/A2/O-MBR) system was used to treat heavily loaded and toxic coke plant wastewater and operated for more than 500 d. Treatment performance, acute toxicity assessment, and dissolved organic characteristics of the A1/A2/O-MBR system were investigated. The present (A1/A2/O-MBR) system was more efficient and reliable in pollutants and acute toxicity reduction than the conventional anaerobic-anoxic-oxic system tested in parallel as control especially at high and varying loading rates. When the total hydraulic retention times of the A1/A2/O-MBR system was 40 h, the average effluent COD, phenol, NH3-N, TN concentrations and acute toxicity were 264 ± 36 mg/L, 0.2 ± 0.1 mg/L, 0.8 ± 1.0 mg/L, 112 ± 47 mg/L and 0.17 ± 0.01 mg/L (Zn2+ toxicity reference), with removals of 89.8 ± 1.2%, >99.9%, 99.5 ± 0.7%, 71.5 ± 7.8% and 98.3 ± 0.3%, respectively. Hydrophobic/hydrophilic fractionation indicated that the hydrophobic acids were the most abundant fraction of dissolved organic matters in influent and effluent, accounting for 70.3%, 67.2% of total dissolved organic carbon, and 75.0%, 76.2% of total colour intensity, respectively. The hydrophilic substances of the oxic supernatant could be rejected effectively by the membrane. Fluorescence excitation-emission matrix (EEM) analysis suggested that humic substance-like matters were potentially refractory and colour causing matters in coke plant wastewater. © 2009 Elsevier B.V. All rights reserved.

关键词： Bioreactors

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Stress of urban energy consumption on air environment

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中国高等学校学术文摘·地球科学 2009年第3期3卷 337-348页

作者： Gang YAN Li LI Bin CHEN State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Beijing Normal University Beijing 100875 China Chinese Academy for Environmental Planning Beijing 100012 China School of the Environment Nanjing University Nanjing 210093 China State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Beijing Normal University Beijing 100875 China

With rapid urbanization and heavy industria-lization as well as the rapid increase of cars in China, the effect of energy consumption on urban air environment is increasingly becoming serious, and has become a hot topic for both scholars and decision-makers. This paper explores the effect mechanism and regulation of urban energy consumption on the air environment, and summarizes the framework of the stress effect relationship and the evolutionary process. In accordance with the effect relationship of the internal factors between the two, analytic approaches studying the stress effect of urban energy consumption on air environment are proposed, including the analysis of air environment effects caused by urban energy consumption structure change, and the analysis of air environment effects caused by urban energy economic efficiency change, as well as a decomposition analysis of air pollutant emission caused by urban energy consumption. Applying the above-mentioned approaches into a case study on Beijing City, this paper analyzes the effect relationship among urban energy consumption structure improvement, energy economic efficiency increase and air quality change since the period when Beijing City officially proposed to bid for the 2008 Olympic Games in 1998. In addition, it further analyzes the effect and contribution of urban industrial activity level, industrial economic structure, industrial energy intensity, and industrial energy structure as well as emission coefficients on the change in industrial SO2 emission, which can provide valuable information to the government for making comPrehensive environmental policies, with the use of the logarithmic mean Divisia index (LMDI) method. It is shown that under the precondition that the industrial economy maintain a continuous and rapid increase, improvements in energy intensity and a decline in emission coefficients are the main means for reducing Beijing's industrial SO2 emissions.

关键词： urban energy consumption air environment stress effect decomposition analysis

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Spectral response of rice(Oryza sativa L.) leaves to Fe^(2+) stress

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Science China(Life Sciences) 2009年第8期52卷 747-753页

作者： CHI GuangYu1,2,CHEN Xin1,SHI Yi1 & LIU XinHui3 1 key laboratory of Terrestrial Ecological Process,Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang 110016,China 2 Graduate School of Chinese Academy of Sciences,Beijing 100049,China 3 state key Joint laboratory of environmental simulation and pollution control,School of Environment,Beijing Normal University,Beijing 100875,China Key Laboratory of Terrestrial Ecological Process Institute of Applied Ecology Chinese Academy of Sciences Shenyang 110016 China Graduate School of Chinese Academy of Sciences Beijing 100049 China State Key Joint Laboratory of Environmental Simulation and Pollution Control School of Environment Beijing Normal University Beijing 100875 China

In the management of lake eutrophication,the regulation effect of Fe is considered,in addition to the controlling nitrogen-and phosphorus *** on the "Fe hypothesis",this paper tentatively applied plant spectral response to the remote sensing early-warning mechanism of lake eutrophication.A laboratory water culture experiment with rice(Oryza sativa L.) was conducted to study Fe uptake by plants and the chlorophyll concentration and visible-near infrared spectrum of vegetable leaves as well as their interrelations under Fe2+ *** spectral indices,i.e.,A1(integral value of the changes of spectral reflectivity in the range 460―670 nm under Fe2+ stress),A2(integral value of the changes of spectral reflectivity in the range of 760―1000 nm under Fe2+ stress) and S(blue-shift range of red edge curve under Fe2+ stress),were used to establish quantitative models about the relationships between the rice leaf spectrum and Fe2+ *** the increase of Fe2+ in a culture solution,the Fe content in rice plants increased,while the chlorophyll concentration in vegetative leaves *** spectral reflectivity of vegetable leaves increased in the visible light band but decreased in the near infrared band,and the blue-shift range of the red edge curve *** indices A1,A2 and S all had significant correlations with the Fe content in rice leaves,the correlation coefficient being respectively 0.951(P < 0.01),?0.988(P < 0.01) and 0.851(P < 0.01),and simulated(multiple correlation coefficients R2 > 0.96) and predict the Fe level in rice leaves.

关键词： rice(Oryza sativa L.) spectrum Fe2+ lake eutrophication

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Quantify the landscape effect and environmental sustainability of rural re(g)ion planning at town scale near metropolis

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中国高等学校学术文摘·地球科学 2009年第1期3卷 112-117页

作者： Shiliang LIU Yuhong DONG Minxia WEN Bin CHEN State Key Joint Laboratory of Environmental Simulation and Pollution Control School of Environment Beijing Normal UniversityBeijing 100875 China Institute of Geographical Sciences and Natural Resources Research Chinese Academy of Sciences Yucheng Comprehensive Experimental Station Beijing 100101 China

The urban fringe, which can be seen as a special form of regional ecosystem with a spatial transition from urban to rural areas, has strong heterogeneity and is a typical ecologically sensitive area. The expansion of cities and the landscape effect of the changes have attracted wide attention. The primary aim of this study is to obtain an understanding of the spatial patterns of landscape conversion and the corresponding environmental sustainability. With the help of GIS and Fragstats software, the changes of landscape patterns before and after town planning were compared in An-Ding town of Beijing, of which the sustainability was also revealed based on the ecological footprint using social and economic statistic data. Theresults showed that the landscape pattern changed greatly during its conversion from several villages to a small town and the landscape fragmentation increased due to road construction. Meanwhile, human disturbance increased with the constructed land extension. For the gap between the ecological footprint and the biological capacity, AnDing town ran an ecological deficit at that period, which means it was unsustainable. However, the environmental sustainability decreased after planning due to the degraded green land and forest. The results suggested that ecological management should be strengthened during the town planning period.

关键词： environmental sustainability landscape ecological footprint ecological capacity town development

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Removal of synthetic polycyclic musks in a full scale membrane bioreactor combined with anaerobic-anoxic-oxic process for municipal wastewater treatment

Removal of synthetic polycyclic musks in a full scale membra...

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第四届亚洲风险评估与管理国际会议(EARAM2009)

作者： Chunying Wu Wenchao Xue Xia Huang State Key Joint Laboratory of Environmental Simulation and Pollution Control Department of Environmental Science and EngineeringTsinghua UniversityBeijing 100084China

Reclamation and reuse of sewage is considered as an effective and economical measure to solve the water resource ***,the potential environmental risk caused by micropollutants in the sewage is increasingly of *** this paper,the removal characteristics of synthetic polycyclic musks in a full scale membrane bioreactor combined with anaerobic-anoxic-oxic (A2/O-MBR) process for treatment of municipal wastewater was *** synthetic polycyclic musks,composed of Tonalide (AHTN) and Galaxolide (HHCB),in every step of A2/O-MBR process,were simultaneously analyzed by gas chromatography/mass spectrometry after derivatisation.

关键词： musk municipal wastewater membrane bioreactor removal efficiency

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Time Series Analysis on Ecological Competitive Capacity of Beijing Using Emergy Synthesis

Time Series Analysis on Ecological Competitive Capacity of B...

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International Conference on Management and Service Science, MASS

作者： Lixiao Zhang Zhifeng Yang State Key Joint Laboratory of Environmental Simulation and Pollution Control School of Environment Beijing Normal University Beijing China

An emergy-based analysis was conducted to investigate evolvement of the ecological competitive capacity of Beijing with regard to urban evolution and city development from 1990 to 2005. A newly integrated indicator, ecological competitive capacity index (ECCI) was established by combing conventional emergy indices of percentage of local renewable resource, emergy self-sufficient ratio, emergy/money ratio and waste emergy ratio, to reflect the overall performance of urban system with respect to their long term sustainability. The result shows that the intensity, structure, efficiency and their environmental impact associated with urban emergy use have exhibited diversified changing tendency. However, the ECCI has decreased with fluctuation from 1990 to 1999, but remains relative stable after 1999. The maximum vale of 1 can be found in 1991 while the minimum value of 0 in 1997 among the concerned years. How to enhance the urban ecological capacity and strengthen the capability of sustainable development is an urgent issue confronted by large cities as Beijing.

关键词： Time series analysis Cities and towns Power generation economics environmental economics Ecosystems Biological system modeling Analytical models pollution control Fluctuations Sustainable development

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