SEWAGE WORKS IN JAPAN : HISTORY - TYPES OF SYSTEMS - FINANCE - ADMINISTRATION - LEGAL ISSUES - NEW ROLES - TECHNOLOGY DEVELOPMENT - RELATED ORGANIZATIONS - STATISTICS

State of the art of the municipal wastewater networks in Japan. Investments and percentage of sewered population ; institutional structures of sewage works ; effective use of sewerage system resources and facilities ; maintenance or restoration of sound water cycles. Activities of Japan sewage works agency and related associations.