Sustainable Livestock Wastewater Treatment with Ozone Technology

How Bok Pig Farm in South Korea Achieved COD Levels Below 30 mg/L Using Primozone Ozone Systems

Livestock farming is a major economic driver across Asia, supporting rural livelihoods, food security, and agricultural development. But as the industry grows, so do the environmental challenges—particularly the impact of untreated livestock wastewater. High-strength wastewater can pollute rivers, groundwater, and soil, making sustainable livestock wastewater treatment essential for responsible farm management.

Primozone’sadvanced ozone wastewater treatment technology offers an effective, chemical-free solution for reducing COD (Chemical Oxygen Demand), protecting the environment, and ensuring regulatory compliance. One standout example is the impressive results achieved by Bok Pig Farm in Cheongyang, South Korea.

Understanding Livestock Wastewater Challenges

Livestock wastewater typically contains:

• High organic load
• Nitrogen and ammonia
• Suspended solids
• Elevated COD and BOD levels

With pig and cattle farms generating large volumes of wastewater every day, untreated discharge can lead to:

• Water pollution
• Soil degradation
• Loss of biodiversity
• Harmful impacts on surrounding communities

To combat these risks, more farms are turning to ozone-based treatment systems for efficient, chemical-free purification.

The Treatment Goal: Safe and Sustainable COD Reduction

Bok Pig Farm needed to reduce COD from 400 mg/L to below 30 mg/L—far surpassing the South Korean Ministry of Environment’s discharge requirement of 50 mg/L. Achieving this without chemical additives was crucial for supporting the farm’s sustainability goals and strict internal standards.

Primozone’s Ozone Solution for Livestock Wastewater Treatment

Primozone implemented a fully ozone-driven wastewater treatment system designed for maximum oxidation efficiency and long-term reliability.

Installed Primozone Equipment

• GM18 Ozone Generator – High-performance ozone production for effective COD breakdown
• PAOR Recirculation System – Ensures optimal ozone dissolution and consistent treatment performance
• PSA Oxygen System – Supplies pure oxygen to maintain peak ozone generation

Together, these components create a chemical-free, high-efficiency oxidation process ideal for livestock wastewater treatment.

Case Study: Bok Pig Farm, Cheongyang, South Korea

Bok Pig Farm houses up to 5,000 pigs and operates under a strict zero-antibiotics policy, feeding only natural ingredients such as corn. Each pig grows from 30 kg to 100 kg within three months and contributes to the farm’s production of roughly 20 m³ of wastewater per day, starting at a COD level of 400 mg/L.

Treatment Process

1. Conventional Pre-Treatment – Removes solids and reduces nitrogen
2. Membrane Filtration – Further polishing and reduction of contaminants
3. Final Ozone Oxidation with Primozone – Achieves ultra-low COD levels for safe discharge

Outcome

Bok Pig Farm successfully reduced COD to below 30 mg/L, exceeding national standards and demonstrating the power of ozone technology in sustainable livestock farming.

Why Ozone Technology Excels in Livestock Wastewater Treatment

Ozone is one of the strongest oxidizing agents available, making it ideal for breaking down:

• Organic contaminants
• Odours
• Pathogens
• Colour and complex compounds

Key Advantages of Ozone Wastewater Treatment

• No chemical additives required
• Fast oxidation and reduction of COD/BOD
• Environmentally safe by-product (oxygen)
• Scalable for farms of all sizes

This makes ozone the preferred solution for farms committed to environmental stewardship and regulatory compliance.

Proven Results from Primozone’s Ozone Technology

• COD reduced from 400 mg/L to < 30 mg/L
• 100% chemical-free oxidation
• Improved environmental compliance and discharge quality
• Scalable solution suitable for pig and livestock farms

These results show how ozone livestock wastewater treatment can deliver powerful environmental and economic benefits for modern farms.

Conclusion

As global demand grows for sustainable and responsible livestock production, ozone wastewater treatment stands out as one of the most efficient and environmentally friendly solutions available. Primozone’s success at Bok Pig Farm demonstrates the transformative impact of ozone technology—protecting natural ecosystems while supporting cleaner, greener, and more profitable livestock operations.

 

For more information on Primozone Ozone Technology contact SOS Hygiene Technologies.

Call 0161 221 2231 or email info@soshygiene.com