Introduction to tycho-filtration-A biotechnology for lacustrine detrophication.

Area of Science:

• Environmental Biotechnology
• Aquatic Ecology
• Nutrient Management

Background:

• Excess nitrogen (N) and phosphorus (P) in water bodies lead to eutrophication and severe algal blooms.
• Hypertrophic waters pose significant ecological and environmental challenges.

Purpose of the Study:

• Introduce tycho-filtration, a biotechnology for extracting N and P from hypertrophic waters.
• Explain the operating principles, influencing parameters, and management strategies for tycho-reactors.
• Discuss potential applications of this algae-based nutrient removal technology.

Main Methods:

• Utilized a proof-of-concept 3 m² tycho-reactor with a daily-peak flow-through rate of 880 liters per hour.
• Analyzed algae biomass composition (Chlorophyceae, diatoms) and nutrient content (N, P).
• Identified and discussed biological interferences and management strategies.

Main Results:

• Achieved algae biomass yield of ≤120.4 g dry weight (DW) per m² per day.
• Biomass comprised 55% Chlorophyceae and 44.8% diatoms, containing approximately 4.16% N and 0.43% P per DW.
• Identified challenges such as filamentous algae, cyanobacteria, and snail predation.

Conclusions:

• Tycho-filtration demonstrates potential for efficient N and P removal from hypertrophic waters.
• Advantages include reliance on solar energy, low harvesting costs, automation potential, and suitability for solar-powered water flow.
• Applications include preventing algal blooms, nutrient control in aquaculture, and effluent treatment from aquafarms.