What is a biological sewage treatment plant – and why choose one?

In the maritime and offshore industries, efficient wastewater management is essential for both operational compliance and environmental protection. A biological sewage treatment plant – also known as a bioreactor for wastewater treatment – offers a proven solution, utilising the natural degradation of organic matter to treat black and grey wastewater effectively.

A biological sewage treatment plant operates on the principle of harnessing microorganisms—primarily bacteria—to break down organic pollutants in wastewater. The biological wastewater treatment process typically includes several stages:

• Pre-treatment: Removal of large solids and debris.
• Biological treatment: Aerobic or anaerobic bioreactors, where microbes digest organic pollutants.
• Clarification: Separation of treated water from biomass and residual solids.
• Disinfection: Final step to ensure effluent meets environmental discharge standards.
  

This process is highly effective for treating black and grey water onboard ships, ensuring compliance with stringent international standards.

G&O Bioreactors deliver reliable and compliant biological sewage treatment plants designed specifically for marine and offshore environments. Our systems provide several key benefits:

• IMO Compliance: All solutions are designed to meet MARPOL Annex IV requirements for sewage pollution prevention, including special area standards.
• Operational efficiency: Automated controls and robust design reduce maintenance and crew workload, enhancing operational reliability.
• Environmental protection: By using natural biological processes, our systems minimise the use of chemicals and support sustainable marine operations.
• Total cost of ownership: Built for long service life with durable European components, G&O Bioreactors provide cost-effective operation even in the most challenging conditions.

Our biological reactor wastewater systems are suitable for:

• Newbuilds – From navy ships to Passenger vessels, we design tailor-made systems that integrate seamlessly into vessel layouts.
• Retrofits – Modular solutions that can be installed in tight spaces with minimal downtime.
• Offshore platforms – Reliable and efficient systems for continuous wastewater treatment.
• Environmentally sensitive operations – Passenger vessels and offshore assets operating in special areas with strict discharge requirements.

Choosing a bioreactor for wastewater treatment is not only about compliance – it’s about safeguarding marine ecosystems, reducing operational costs, and ensuring long-term reliability.

Discover how G&O Bioreactors can enhance your vessel’s wastewater management.

• Explore our product page
• Contact our team for technical guidance or a tailored solution.