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Promoting sustainability of manufacturing industry through the lean energy-saving and emission-reduction strategy

Cai, Wei, Lai, Kee-hung, Liu, Conghu, Wei, Fangfang, Ma, Minda, Jia, Shun, Jiang, Zhigang, Lv, Li
The Science of the total environment 2019 v.665 pp. 23-32
carbon, carbon footprint, emissions, energy conservation, energy efficiency, manufacturing, models, pollution, wastes
The energy-saving and emission reduction (ESER) strategy is a crucial measure for promoting the sustainability of manufacturing industry in green transition. Analyzing current practices and limitations of the ESER in the manufacturing industry, this paper proposes a new concept entitled lean energy-saving and emission-reduction (LESER) and an approach to effectively improve the energy efficiency and reduce waste emissions. This paper illustrates the definition of the LESER and establishes an implementation framework for LESER to improve the manufacturing process. To quantify and evaluate performance of LESER, the state space model of the carbon footprint for energy consumption and waste discharge is established. A method for implementing the LESER strategy is constructed in the following steps: (i) clarification of the current situation; (ii) analysis of the root cause; (iii) improvement; (iv) evaluation of the carbon emissions; (v) sustaining and standardizing. Finally, the LESER strategy is applied to the Zcrubber Group Co. Ltd., which is characterized with high pollution, high energy consumption, and high emission in green transition. Results demonstrate practicability of the proposed strategy to offer an effective measure for promoting sustainability of manufacturing industry.