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Jfes-Wfeo Joint International Symposium on River Restoration

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Jfes-Wfeo Joint International Symposium on River Restoration THE JAPAN FEDERATION OF THE WORLD FEDERATION OF ENGINEERING SOCIETIES ENGINEERING ORGANZATIONS JFES-WFEO JOINT INTERNATIONAL SYMPOSIUM ON RIVER RESTORATION Under support of Japan Society of Civil Engineers (JSCE) Science Council of Japan (SCJ) COE "Sustainable Urban Regeneration" of the University of Tokyo Hiroshima Univ., 13 September 2007 JFES-WFEO Joint International Symposium on River Restoration Organizers: The Japan Federation of Engineering Societies (JFES) and The World Federation of Engineering Organizations (WFEO) Under support of The Japan Society of Civil Engineers (JSCE), The Science Council of Japan (SCJ) and 21st Century COE "Sustainable Urban Regeneration" Program in the University of Tokyo September 13th, 2007 10:40 – 12:00 Venue: Hiroshima University, Higashi-Hiroshima Campus Reception Hall, Faculty Club (Gakushikaikan in Japanese), 2nd Fl. SYMPOSIUM PROGRAM Chair: Prof. KAWASHIMA, Kazuhiko, Member of National Committee on WFEO, Science Council of Japan Opening Addresses: 10:40 – 10:50 (10 minutes) Dr. ISHII, Yumio, Chairperson of IAC-JFES, Member of Senior Advisory Board and Committee on Engineering and Environment, WFEO Presentation (10:50 – 11:50) 15min.x 4 presentations 1. Water Environmental Pollution and Control in China Prof. Hong-Ying HU, Dept. of Environmental Science & Engineering, Tsinghua University (China) 2. Cheongge cheon Restoration Project Mr. Kil-Dong PARK, Flood Management Div., Seoul Metropolitan Government, (Korea) 3. A study on River Space Restoration and Improvement of Water Quality in Nihonbashi River Dr. ITO, Kazumasa, Research Center for Sustainable Communities, CTI Engineering Co., Ltd. (Japan) 4. Poverty Eradication by water harvesting and storages by people participation and case study of river restoration Mr. VASOYA, B. J., Chairperson of WFEO Committee on Engineering and Environment (India) Question and Answer (11:50 – 11:55) (5 minutes) Closing Address (11:55 – 12:00) (5 minutes) Prof. IKEDA, Syunsuke, Vice-President of JFES Discussion: Lunch time - i - OPENING ADDRESS ISHII, Yumio President, Japan Society of Civil Engineers (JSCE) Chairperson, International Activities Committee, Japan Federation of Engineering Societies (JFES) Member, Senior Advisory Board and Committee on Engineering and Environment, World Federation of Engineering Organizations (WFEO) Member, Japan National Committee on WFEO, Science Council of Japan (JNC-WFEO) It is my great honor to give the address at the opening of JFES-WFEO Joint International Symposium on River Restoration. Fist of all, I would like to express my sincere gratitude and appreciation to our distinguished guest panelists from various countries, Prof. B. J. Vasoya, WFEO’s Vice-President from India, Prof. Hong-Ying Hu from Tsinghua University, China, Mr. Kil-Dong Park from Seoul Metropolitan Government, Korea and Dr. Kazumasa Ito from CTI Engineering Co., Ltd., Japan for sharing their precious time to make presentations on River Restoration that I trust are very useful and fruitful for engineers in this field. River restoration has been one of the highly interested issues to engineers and the public around the world. The Cheonggeycheon Restoration Project of Seoul is a typical and successful example in those around the world. I also send my thanks to my colleagues in JFES, SCJ and COE “Sustainable Urban Regeneration” in the University of Tokyo for warm and positive helps to hold this Symposium. The last but not the least thanks should be sent to JSCE for their support to this symposium. Next, I would like to use this opportunity to briefly introduce WFEO, SCJ, JFES, JSCE and the relationship among these organizations. WFEO, The Federation of Engineering Organizations, was founded in 1968 under the support of UNESCO. It now covers 90 nations and represents some 15 millions engineers from around the world. SCJ, The Science Council of Japan, was established in 1949 under the jurisdiction of the Prime Minister. Today it consists of 210 members and some 2,000 associate members officially representing 820 thousand Japanese engineers and scientists. SCJ has been a national member of WFEO from 1972. JFES, The Japan Federation of Engineering Societies, was founded in 1897 and it is consolidating 98 academic and engineering organizations in Japan that cover some 600,000 individual members. JFES has jointed with SCJ in the collaboration activities with WFEO since 1972. - ii- JSCE, the Japan Society of Civil Engineers was established in 1914. It has been very active in the academic and professional arena with 39 thousand members for the development of infrastructure. JSCE is an active member of JFES. To enhance the collaborations with WFEO, International Activities Committee of JFES (JFES-IAC) and Japan National Committee on WFEO of SCJ (JNC-WFEO) were established respectively from 2005 and 2006. Both the two organizations nominated their members to WFEO’s Committee on Engineering and Environment, Committee on Information and Communication, Committee on Capacity Building and Anti-corruption Task Force. They are also having their member to Committee on Energy. Finally, I expect this Symposium will be a catalyst for the engineers participating to this Symposium from various countries to deepen their understanding of WFEO, SCJ and JFES and have collaboration among their organizations. Moreover, I expect this symposium will furnish us with the measures to solve such urgent issues as the world climate change, degradation of environment through the exchange and transfer of technology, information and experience and to achieve the UN Millennium Development Goals. JNC-WFEO and JFES-IAC are discussing and planning to suggest WFEO to establish a new Task Force to research and propose measures to manage flood disasters and water resources problems relevant to the global warming. I hope we will realize the fruitful collaborations through the symposium. - iii- WATER ENVIRONMENTAL SITUATION AND POLLUTION CONTROL IN CHINA HU* Hong-Ying and SONG Yu-Dong ESPC State Key Joint Laboratory, Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China Abstract: The current situation of water environmental quality and water pollution control in China are briefly introduced in this paper. Rivers, lakes and oceans in a wide range are polluted, which resulted in destruction of natural aquatic ecosystems and landscapes. In recent years, China has made great efforts on water pollution control and the wastewater treatment rate increased quickly. However, the treatment ratio of the total municipal wastewater and municipal domestic wastewater was only 52% and 37.4% respectively in 2005. Large amount of wastewater was discharged to water environment without enough treatment. A pilot scale study on water river quality remediation and ecosystem restoration was also introduced. Keywords: Water environment, Water pollution control, Water treatment 1. INTRODUCTION Since 1980’s, with the rapid economic development, the demand for water resources increased and the water environmental quality deteriorated seriously in China. China is a country short of water resource, the per capita water resource is limited and the spatial distribution of water resources is extremely uneven. As a result, many cities and regions are facing serious problem of water shortage. At the same time, the water pollution has not been controlled effectively, which intensifies the water shortage problem. Rivers, lakes and oceans in a wide special range are polluted, which resulted in the destruction of natural aquatic ecosystems and landscapes. Water quality pollution, quantity shortage, aquatic ecosystem degradation and landscape destruction are the main water environmental problems in China. The water resource and water environment has become one of the key factors affecting sustainable development of China. 2. WATER ENVIRONMENTAL SITUATION IN CHINA 2.1 Water Environmental Situation of Rivers There are seven main rivers in China: Changjiang River, Yellow River, Pearl River, Songhua River, Huai River, Hai River and Liao River (Fig.1). State of the Environment in China 2006 shows that the water quality of the seven main rivers in 2006 was similar to that in 2005 and was not improved significantly[1]. Environmental Quality Standards for Surface Water （GB 3838-2002）defines five water quality classes for different environmental functions: Class I for headwaters and natural reserve; Class II for 1st class of drinking water sources and habitats of rare aquatic organisms; Class III for 2nd class of drinking water sources, aquiculture and human contact; Class IV for water source of industrial use and recreation area for indirect human contact; Class V for water sources of agriculture use and landscaping requirement. Among the 408 monitoring sections, the sections with water quality - 1 - belong to Class I~III, Class IV~V and below Class V accounted for 46％, 28％ and 26％ [1] respectively . The main pollutants were Oxygen Consumed (CODMn), oils and ammonium. Fig.1 The seven main rivers in China The water quality classification of monitoring sections in the seven main rivers is shown in Fig.2. Changjiang River and Pearl River, which locate in the south of China, have a better water quality because of their high dilution capability. The percentage of the monitoring sections fit for drinking water source and human contact (Class I~III) was 76% and 82% respectively for Changjiang River and Pearl River. The five other rivers, which locate in the north of China, showed a poorer water quality
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