The 11th International Conference on Water Resource and Environment (WRE 2025)

Abstract: Phosphorus (P) is a finite, non-renewable resource, and excessive nitrogen (N) and P discharges from livestock wastewater contribute to eutrophication. This talk reviews emerging technologies for recovering N and P from livestock wastes, with a focus on fluidized-bed homogeneous crystallization (FBHC). Various crystallization approaches, including struvite (MgNH4PO4·6H2O) formation for simultaneous N and P recovery, and precipitation of tricalcium phosphate (Ca3(PO4)2) and ferric phosphate (FePO4) for phosphorus recycling, are discussed. The principles, operational parameters, and performance of these technologies are highlighted, including the use of swine slurry, magnesium sources, and industrial wastewater streams. Advantages of FBHC over conventional methods, such as high removal efficiency, low moisture content, and scalable production of crystalline products, are emphasized. The potential applications of recovered products as fertilizers and raw materials for bioactive materials are also addressed. This review provides insights into sustainable, circular strategies for livestock wastewater management, demonstrating how FBHC and related crystallization techniques can support nutrient recovery, environmental protection, and resource reuse.
Keywords: Swine slurry; Nitrogen recovery; Phosphorus recovery; fluidized-bed reactor

Biography: Prof. Ming-Chun Lu is a Chair Professor in the Department of Environmental Engineering at National Chung Hsing University, Taiwan. He has served as an editor for Desalination since 2024 and has been an associate editor for Sustainable Environment Research since 2015. His outstanding achievements have been widely recognized with numerous honors. These include the Platinum Award at the Taiwan Innotech Expo Invention Competition in 2023 and 2024, the prestigious Future Technology Award from the National Science and Technology Council in both years, and the Outstanding Advisor Award for College Student Research and Creativity in 2023. He also led his team to win the championship in the Net-Zero Carbon Technology International Competition hosted by the TECO Technology Foundation in 2023 and was honored with the Outstanding Engineering Professor Award by the Chinese Institute of Engineers the same year. Professor Lu's research interests encompass advanced oxidation processes for water and wastewater treatment, fluidized-bed crystallization technology for treating wastewater containing metallic and non-metallic salts, and carbon dioxide capture from flue gas. He is also an innovator in developing disinfection, deodorization, antimicrobial, and antifungal technologies, as well as oil emulsification and desulfurization techniques. His work not only addresses pressing environmental challenges but also provides sustainable solutions that drive technological advancements.