Keywords: DEA, data envelopment analysis, eco-efficiency, emission quota allocation, pollutant emissions, China, paper mills, water quality, water pollution
Eco-efficiency analysis and pollutant emission quota allocation of Chinese paper mills
The objective of this paper is to develop an approach based on Data Envelopment Analysis (DEA) to address the eco-efficiency analysis and improvement problem of paper mills along the Huai River in China. In the proposed model, a system's overall eco-efficiency is evaluated considering undesirable outputs and pollutant (undesirable output) emission quotas simultaneously. Based on the developed model, a pollutant emission quota allocation approach is introduced, i.e. the pollutant emission quota is a type of decision variable in the proposed model and it is allocated to Decision Making Units (DMUs) by optimising it when solving the proposed model. The approach, which is applied to 32 paper mills along the Huai River in China, indicates that the paper mill system's overall eco-efficiency is effectively improved.