環境 ＩＶ 紙パルプ産業と地球環境序論

Abstract

Japanese Pulp and Paper Industries had overcome the pollution problems mainly of air and water pollution which struck the industries on '70s.For the pollution control, Japanese pulp and paper industries invested not only to the end pipe treatment such as waste water treatment and stack gas desulfurization but also to the reductions of pollutant by the improvements of the production process and others. Investments for the pollution control for three years from 1974 to 1976, while the largest investment were took place for the pollution control, was over 140 billion Yen.Along with above investments, each mill placed an officially qualified “Manager in Charge of Pollution Control”, Who organizes the pollution control activities in the mill.In 1990, dioxins from the waste water of the bleaching plant of the pulp mill became a social concern, and Japanese pulp and paper industries took measures such as installation of oxygen dilignification plant, stabilization of Kappa Number and improvement of washing process to reduce the consumption of chlorine. By these measures, all the bleached kraft pulp mill cleared maximum discharge of 1.5 kg/ton of pulp, the voluntary reduction target of AOX discharge set by Japan Paper Association, at the end of 1993.Coming 21st Century is said to be a century of the Global Environment. Problems concerning the Global Environment such as global warming. differing from the pollution problems, is not caused by the specific substances emitted by specific industrial activities, but is caused by the various activity of human being including the normal living activity, and no simple measure is available.How we, pulp and paper industries should deal with the Global Environment Problems and maintain the Sustainable Development at the same time is discussed.