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北京大学英语新闻网/Peking University News Beijing Forum 2007: Paying Attention to Drinking Water Quality and Enhancing Safety Awareness: Tang Hongxiao, Academician of Chinese Academy of Engineering By Tang Hongxiao A Profile of Tang Hongxiao PKU NEWS 2007--10--24 http://ennews.pku.edu.cn/news.php?s=193154345 Tang Hongxiao, academician of Chinese Academy of Engineering, Commissioner of National Environmental Consulting Committee and expert in Environmental Water Quality Sciences and Environmental Engineering Sciences. He was born in Xushui, Hebei Province in 1931. In 1953, he graduated from Harbin Institute of Technology. He is now Director of the Academic Council of Research Center for Eco-Environmental Sciences, CAS, and researcher in the national key laboratory of Environmental Water Quality Sciences. Tang Hongxiao conducted series of research concerning the formation, evaluation and management of heavy metal in Jiyun River, Xiang River and Poyang Lake successively. He pioneered the study of inorganic macromolecular flocculation theory and flocculating agent, and took lead in establishing modern plants of compound chloridized aluminum. He led several nationally and internationally cooperated projects and took part in the strategic research of national, especially Northwest China water resources, launched by Chinese Academy of Engineering. He has won the second-class Award of National Natural Sciences, the second-class Award of National Technological Advancement, Heling and Heli Award, SCI Classical Paper Award of the United States and many other awards granted by Chinese Academy of Sciences. He has had about 300 monographs and papers published. He is now editor -in-chief of Acta Scientiae Circumstantiae. In recent years, major incessant incidents of water pollution incurred by nitrobenzene in Songhua River, blue-green algae in Taihu Lake and pollution discharge in the Yellow River all have serious impact on drinking water safety in the first place. The State Council and Environmental Protection has intensified the management of 492
北京大学英语新闻网/Peking University News energy-saving, discharge-reduction and the control of pollution source, expecting a new turning point of China‘s environmental protection. However, the elimination of and recovery from environmental pollution is a long and strenuous process. Recycling economy, clean production and rehabilitation are the basic principles to follow. How to tackle emergent impact and how to guarantee the safety of daily drinking water? These issues should be handled with priority, considering the current conditions of frequent water source pollution. In order to guarantee drinking water safety, Research Center for Eco-Environmental Sciences, CAS, specially set up Drinking Water Science and Program lately. They have made major achievements concerning technological research of the Three-level Guarantee Systems including deep- water purification, water distribution and cyclic stability, and risk- evaluation of water quality, which are the terminal control of drinking water safety. The terminal control technology of drinking water safety has been put into use in the Olympic Village. In order to greet Green Olympics and guarantee water quality, many Chinese scientists and people in other walks of life have made various contributions. Here I will put forward my personal suggestions regarding problems surfaced in the protection of China‘s drinking water quality, especially concerning the central water supply system in townships in the wake of China‘s rapid urbanization. The Ideal Model of Water Quality Management Water Quantity and Quality Recycling System The acquisition of natural water, water purification, distribution, pollution discharge, depth disposal, reutilization and return of water constitute the social recycling of water resources. This is a complete process, during which water quality is transformed from time to time. It should be comprehensively designed and managed. Under the background of water shortage and pollution, the trend of central water supply management in the international community is to build up unified water quantity and quality recycling system, which combines the disposal, regeneration, cycling and distribution of water, sewage and rain water. The 21 Century Drinking Water Works in South California of the United States, Singapore Netwater System and European Centralized Water Supply Management are all such examples. They all go through deep- water purification of city sewage and then incorporate it with the water supply system. In this way, water resources can be utilized to the maximum. This is a good solution for areas which have serious water pollution or shortage. China has developed some recycling and reutilization links in the management of water supply and sewage disposal. However, basically, they are still not centralized. Currently, China still has a long way to go concerning our perception, economy, system and technology of management. In order to achieve the goal of central water 493
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