TAILIEUCHUNG - Analysis of waste flows using wio table

The material flows that each sector contributes to the others are quantified and then combined with the corresponding waste generation coefficient to determine the load of waste generated, collected and treated for each sector. | Vietnam Journal of Science and Technology 56 (2C) (2018) 201-206 ANALYSIS OF WASTE FLOWS USING WIO TABLE Nguyen Thi Anh Tuyet*, Tran Thanh Chi, Dinh Bach Khoa School of Environmental Science and Technology, Ha Noi University of Science and Technology, 1 Dai Co Viet, Ha Noi * Email: Received: 10 May 2018; Accepted for publication: 21 August 2018 ABSTRACT As industrial sectors and waste management sectors are related to each other in IO table, this paper aims to inventory waste cycles among the sectors in Vietnam using IO (Input – Output) table and WIO (Waste Input - Output) model. The national published data of 164 product sectors are based on the 2012 IO table updated for 2016. The material flows that each sector contributes to the others are quantified and then combined with the corresponding waste generation coefficient to determine the load of waste generated, collected and treated for each sector. The investigated data include quantity and composition of hazardous and solid waste handled by 200 waste treatment facilities in 2016. The type of waste is limited to 3 categories including wastewater, domestic and normal industrial waste, and hazardous waste. The research drives towards to build an economic mathematical model for Vietnam that gives a quantified analysis of waste flows. Keywords: IO table, WIO model, waste cycle analysis. 1. INTRODUCTION An IO table presents balanced interrelationships of the providing and demanding sectors of the economy. IO tables have important applications in the fields of economics, energy as well as environment. In the field of waste, Y. Kondo and S. Nakamura have developed WIO model (Waste Input - Output) and used the model as an inventory tool in supporting environmental management in Japan [1, 2, 3]. This model focuses on a systematic and cross-cutting approach to interdisciplinary interdependence between production activities, waste generation and waste management (including recycling and .

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