Author: CICI CHENXI 2025-09-08
Shanghai— In the rapidly evolving aquaculture industry, Moving Bed Biofilm Reactor (MBBR) technology has emerged as a game-changer for addressing persistent water treatment challenges. Recent advancements demonstrate MBBR’s resilience against antibiotics, disinfectants, and salinity fluctuations, reinforcing its role in sustainable aquaculture practices.
● Aquaculture antibiotics (e.g., Rifampicin, Norfloxacin, Oxytetracycline) often inhibit nitrifying bacteria in MBBR systems. However, studies reveal that MBBR biofilms can remove 28.4%–69.5% of antibiotic residues through biodegradation and adsorption processes. This innate resistance highlights MBBR’s potential to mitigate antibiotic impacts while maintaining nitrification efficiency.
● Key Insight: Reducing antibiotic reliance and exploring alternatives are critical for sustainable aquaculture.
● Common disinfectants like ozone and peracetic acid, if misapplied, can impair MBBR performance by disrupting biofilm activity. Optimizing dosage and exposure time is essential to minimize negative effects on ammonia removal efficiency.
● Recommendation: Automated dosing systems and real-time monitoring ensure disinfectant efficacy without compromising biological treatment.
● Sharp salinity shifts (>10‰) suppress nitrifier activity. MBBR systems now integrate halotolerant nitrifying consortia and modified bio-carriers to maintain stability under high-salinity conditions. These innovations enable consistent nitrification performance even in marine aquaculture environments.
● Performance Highlight: Salinity-adapted MBBRs achieve stable nitrogen removal despite fluctuating salinity levels.
● Biofilm Optimization: PU sponge carriers show superior nitrogen removal (e.g., 63.82% NH₄⁺-N removal) compared to traditional K1/K3 fillers.
● Hybrid Systems: Coupling MBBR with algal reactors or solid-phase denitrification (SPD) enhances nitrate removal and resource recovery.
● Smart Monitoring: IoT-based sensors track dissolved oxygen, pH, and pollutant levels to optimize MBBR operation in real-time.
These advancements align with global sustainability goals, reducing environmental impact while improving aquaculture productivity. MBBR’s adaptability makes it ideal for recirculating aquaculture systems (RAS), marine fish farming, and shrimp cultivation.
We are the largest MBBR carrier manufacturer and exporter in China, and a leading ISO 9001-certified manufacturer of wastewater treatment solutions and recirculating aquaculture solutions with 20+ years of experience, serving clients in 30+ countries.
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