Development of Air Bubble Cleaning and Recirculating Filtration System for Plastic Sleeves in Flammulina Velutipes (Enoki Mushroom) Cultivation

Key Points

• The aim is to improve the cleaning efficiency of plastic sleeves used in Flammulina velutipes cultivation while reducing water usage.
• Implemented air bubble-based cleaning method to leverage turbulent flow and shear forces.
• Assessed contamination removal efficacy within a 15-25 minute cleaning period.
• Developed a two-stage filtration system consisting of mesh and wound filters for water reuse.
• Applied response surface methodology to analyze turbidity and brightness changes based on filter pore size and filtration time.
• Optimal dewatering time was determined to be 4-6 minutes.
• Achieved a turbidity of 5.14 NTU and brightness of 50.79 under optimal conditions (1.0 μm pore size, 172 minutes).
• Maintained microbial safety with chlorine treatment at 30 ppm, keeping general bacteria below detection limits.

Abstract