Nutrients recovery from fish farm wastewater through Vacuum Membrane Distillation

• Project/Area Number: 24K23925
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Multi-year Fund
• Review Section: 1101:Environmental analyses and evaluation, environmental conservation measure and related fields
• Research Institution: Nagasaki University
• Principal Investigator: Chang YingShi 長崎大学, 総合生産科学研究科(工学系), 助教 (10999204)
• Project Period (FY): 2024-07-31 – 2026-03-31
• Project Status: Granted (Fiscal Year 2024)
• Budget Amount: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000); Fiscal Year 2025: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2024: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: Nutrient recovery / Water reclamation / Membrane distillation / Fish farm wastewater

Outline of Research at the Start

Recovering ammonia and phosphate nutrients from fish farm wastewater is a sustainable method for waste valorization. This work aims to further intensify a sustainable VMD system for concentrating phosphate nutrient and simultaneously, recovering high ammonia and purified water from fish farm wastewater. Operating parameters will be optimized for the resource recovery. The viability of the system will be assessed by membrane fouling propensity and the necessity of pretreatment. Overall, the research outcome is expected to enhance circular aquaculture economy and water security.