Exploring the emission reduction potential of industries: A source-processing-end coordinated model and its application

Many requirements have been proposed for pollution control in a legal, scientific and targeted way. At the critical stage of pollution prevention and control, refined management of industrial pollution is a way of achieving targeted pollution control. Focusing regional pollution reduction targets on industrial production processes with reduction emission potential is an effective way to achieve targeted control. We established a source-processing-end (S–P-E) coordinated model—SPECM—by collaboratively considering the whole-process of raw material-processing-end-of-pipe (EOP) chains and applied the model to the setting of medium- and long-term pollution control targets and selection of reduction options for various industries in Lanzhou, China. The results indicated that (1) chemical manufacturing-related industries are the key potential volatile organic compound (VOC) emission reduction industries in Lanzhou, accounting for approximately 89% of the total emission reduction potential; (2) metal furniture manufacturing and paper-making industries should strengthen processing optimization while also giving attention to material substitution; and (3) printing-related industries need collaborative control of their whole-process, especially material substitution enhancement. The SPECM method focuses on the reduction in industrial processes and proposes reduction options under different reduction targets. This new collaborative control method could facilitate the design of coordinated control schemes across industries under industrial emission reduction targets. Overall, our results could provide new ideas and guidance for the refined management of regional industrial pollution.