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DOI : ,    Vol.6, No.3, 23 ~ 38, 1998
Title
Water Environmental Protection Technology in Global Environmental Era
야지달야Tatsuya Noike
Abstract
In recent years, global environmental problems have been closed up, and earnest approaches to solve the problems have been conducted on the fields of natural science, politics and economics. Sewerage is the indispensable infrastructure which assures the nation of safe and comfortable lives and controls water pollution. It is important for us in the arrangement and management of sewerage to recognize how the system is concerned with greenhouse effect and copes with it. Sewerage system is also one of the constitutive elements which are needed to keep ecosystem and nature recycling system well. The purposes of this lecture are to discuss on a new role of sewerage in global environmental era and to have a view of the resources, such as, sewage sludge and treated water, and the unused energy will be discussed from a stand point of environmental protection of the earth.
Key Words
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