Dissolved Oxygen
More Oxygen. Less Overhead.
Dissolved oxygen (DO) is vital for aerobic bacteria to break down organic waste in wastewater treatment. However, traditional aeration is often energy-intensive and inefficient, especially under high organic loads. Nano-bubble technology offers a transformative solution—delivering ultra-fine bubbles that stay suspended longer, vastly improving oxygen transfer and microbial efficiency. This innovation boosts treatment performance, reduces energy costs, and supports sustainability without major infrastructure changes.
When Oxygen Drops, Trouble Rises
Low dissolved oxygen (DO) levels in wastewater systems stem from imbalances between oxygen supply and demand. Overloaded organic waste, slime accumulation, and inefficient aeration disrupt aerobic microbial activity, creating oxygen-deprived zones where harmful anaerobic bacteria thrive. Furthermore, excess nutrients, rising temperatures, and stagnant flow exacerbate these conditions, leading to incomplete treatment, foul odors, and non-compliant effluent. Addressing these root causes requires targeted strategies to optimize oxygen availability and microbial efficiency.
Solutions
Boost DO. Break FOGs. Breathe Life.
Eco-Cat and Ecosystem Plus by Bio-Organic Catalyst is a modern solution that combines enhanced oxygen transfer with microbial management to restore aerobic conditions. Nano-bubble technology and precision aeration systems elevate DO levels by saturating wastewater with oxygen-rich nano-bubbles that penetrate slime and organic sludge. Simultaneously, enzymatic breakdown of fats, oils, and greases (FOGs) reduces organic load, while bio-stimulants promote aerobic bacteria to outcompete anaerobic species. Integrated monitoring systems ensure real-time adjustments, balancing energy use with treatment efficacy. Modern solutions combine enhanced oxygen transfer with microbial management to restore aerobic conditions.
Integrated Benefits:
- Energy efficiency: Combines nano-bubbles, enzymes and smart controls to cut power use up to 30%.
- Regulatory compliance: Maintains DO >2 mg/L and reduces effluent toxicity.
- Resource recovery: Converts waste into biofuels via enzymatic biomass valorization.
- Circular economy: Enables water reuse through enzyme-catalyzed processes.
Frequently Asked Question:
Increasing DO helps wastewater systems stay healthy and smell-free. It supports “good” bacteria that need oxygen to break down waste. From a technical standpoint, maintaining DO levels above 2 mg/L is essential for aerobic degradation pathways, which enhance BOD/COD reduction, limit sulfate-reducing bacteria, and ensure nitrification stability.
Nano-bubbles are tiny and stay suspended in water longer, which means they deliver oxygen deeper and more effectively. Unlike coarse or fine bubbles, nano-bubbles (<200 nm) exhibit neutral buoyancy, penetrate dense sludge, and increase gas-liquid interfacial area—leading to a 4–6x higher oxygen transfer efficiency (OTE).
Enzymes act like biological scissors, cutting down fats, oils, and grease into smaller bits that bacteria can easily digest. Technically, lipase, protease, and amylase classes break down triglycerides, proteins, and carbohydrates respectively, reducing the molecular weight and emulsifying complex organics into simpler substrates.
Over time, yes—it reduces sludge buildup, so there’s less need for manual or mechanical removal. Enzymatic hydrolysis combined with enhanced microbial oxidation minimizes volatile suspended solids (VSS), leading to lower sludge yield (Yobs) and reduced sludge retention time (SRT) requirements.
It consistently keeps harmful emissions and residues within safe levels, protecting water bodies and human health. With DO stabilization, it prevents the formation of anaerobic intermediates like hydrogen sulfide (H₂S) and volatile fatty acids (VFAs), reducing effluent toxicity and aiding compliance with local BOD, COD, and nutrient discharge regulations.
Yes, smart oxygen delivery means your blowers and pumps work more efficiently, using less power. Nano-aeration requires lower airflow rates due to its high OTE, while enzymatic catalysis reduces the need for energy-intensive sludge thickening and dewatering—cutting operational energy loads by up to 30%.
It helps “good” bacteria dominate, making the treatment process more stable and effective. Aerobic microbial communities (e.g., Nitrosomonas, Bacillus) are selectively stimulated by bio-stimulants and higher ORP (oxidation-reduction potential), suppressing filamentous bulking and limiting proliferation of sulfate-reducing bacteria (SRB).
Absolutely—it turns waste into useful byproducts like bioplastics or energy. Enzyme-mediated biomass valorization enables conversion of lipids into biodiesel, proteins into single-cell protein (SCP), and carbohydrates into polyhydroxyalkanoates (PHAs), aligning with circular economy initiatives.
Yes, it integrates easily without major retrofitting or shutdowns. The modular dosing and aeration system allows phased implementation in existing tanks, basins, and digesters—compatible with SBR, MBBR, and CAS configurations.
Yes—it cleans water to a level where it can be reused safely in many industrial processes. Advanced oxidation and organic load reduction lower total suspended solids (TSS) and improve UV transmittance, facilitating tertiary treatment compatibility for non-potable reuse.
Trusted Clients:
