Abstract
The aim of this study is to determine the characteristics of zero-emission activities in beer factories as advanced examples. A questionnaire survey was conducted to grasp the manufacturing process of beer and the present classification systems of waste and material-recycling activities at each manufacturing stage. Based on these results, zero-emission activities were studied by conducting a further interview survey. The findings of this study can be summarized in the following three points: (1)Zero-emission activities can be classified into two types. There are differences in responses to regional characteristics and administrative measures, and the influence of managers' awareness; (2) It is easy for beer factories in stockbreeding regions to achieve material recycling, and it is necessary to consider regional characteristics when conducting zero-emission activities; (3) The differences in the drain basic unit of each company were clarified through the differences in approaches and equipment in each company or beer factory.
