Research on optimization of operation strategy of vegetable waste treatment and recycling system

Journal of Lanzhou University of Technology ›› 2026, Vol. 52 ›› Issue (1): 33-40.

• Mechanical Engineering and Power Engineering • Previous Articles Next Articles

Research on optimization of operation strategy of vegetable waste treatment and recycling system

LI Jin-ping^1,2,3,4, SHI Zi-han^1,2,3,4, YANG Jia-wei^1,2,3,4, CUI Hua-jian^1,2,3,4, NOVAKOVIC Vojislav⁵

1. Western China Energy and Environment Research Center, Lanzhou University of Technology, Lanzhou 730050, China;
2. Gansu Key Laboratory of Complementary Energy System of Biomass and Solar Energy, Lanzhou 730050, China;
3. China Northwestern Collaborative Innovation Center of Low-carbon Urbanization Technologies, Lanzhou 730050, China;
4. College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou 730050, China;
5. Department of Energy and Process Engineering, Norwegian University of Science and Technology, Trondheim n7491, Norway

Received:2023-03-14 Online:2026-02-28 Published:2026-03-05

Abstract

Abstract: Taking a large-scale treatment and recycling system of vegetable wasteas an object, the operation data of the system during the six-month trial operation period were analyzed. The results showed that the system had the problems of intensive energy consumption in operation, insufficient waste heat recovery, and incomplete recycling of vegetable waste resources. In response, an optimized operational strategy for the operation and regulation mode of equipment on the energy supply side of the system is proposed. A cogeneration system with a biogas internal combustion engine as the power equipment to optimize the waste heat recovery process is used, and TRNSYS is used to simulate and verify the optimization system. The results show that the optimized system achieves an energy utilization efficiency of 83.76%, a cogeneration efficiency of 53.32%, and a 44.61% reduction in operating costs, thereby significantly enhancing both thermodynamic performance and economic viability.

Key words: vegetable waste treatment, recycling, operational optimization, cogeneration, simulation verification, anaerobic digestion

CLC Number:

LI Jin-ping, SHI Zi-han, YANG Jia-wei, CUI Hua-jian, NOVAKOVIC Vojislav. Research on optimization of operation strategy of vegetable waste treatment and recycling system[J]. Journal of Lanzhou University of Technology, 2026, 52(1): 33-40.

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Research on optimization of operation strategy of vegetable waste treatment and recycling system

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