Even in tiny amounts, chlorine is highly toxic to fish and other aquatic life. Trout larvae die at concentrations as low as 0.006 mg/L, and at just 0.1 mg/L, most marine plankton are killed. Once released, chlorine can also react with organic matter in seawater to form trihalomethanes (THMs) – a group of persistent, carcinogenic… Read more

Whether operating under strict IMO standards or working with NATO-aligned navies, regulatory compliance is at the core of every system we deliver. Our Bioreactors hold MED and IMO MEPC 227(64) certificates, and our systems are designed to meet the highest global standards for onboard wastewater treatment regardless of vessel type or operating environment. “Navigating the… Read more

What is Biological Wastewater Treatment? Biological wastewater treatment is a process that uses microorganisms to break down organic matter in sewage. This method is effective in removing contaminants from water, making it suitable for discharge into the environment. The process of biological water treatment involves three primary stages: 1. Pre-treatment (Screening Phase) Water is first… Read more

For many years, Gertsen&Olufsen has been best known for its two market-leading products: vibration compensators and bioreactors. These products have set the standard in the maritime industry and have become synonymous with quality and innovation. Now, we are taking the next step by breaking down the brand name into two distinct product names that will… Read more

The Customer Challenge: Replacement for Compliance and Capacity At G&O Bioreactors, we specialize in designing bioreactors that treat wastewater biologically, ensuring operations that protect marine ecosystems from untreated wastewater. This case study explores how we provided a leading offshore operator with a tailored wastewater treatment solution, ensuring compliance and operational efficiency. A major offshore energy… Read more

As environmental regulations tighten and operational costs increase, shipowners need to make smarter investment decisions for their vessels. While the market for wastewater treatment systems is saturated with options that are initially less expensive, G&O Maritime offers a bioreactor system that provides significant operational advantages and long-term savings. This article explores the value propositions behind… Read more

The Chilean authorities have recognized our Advanced Membrane Bioreactor with a certification, marking a significant advancement in the efforts to achieve cleaner oceans. This recognition not only confirms the effectiveness of our technology but also the importance of biological treatment methods in protecting the marine environment. “While traditional wastewater treatments have relied on chemical and… Read more

While our systems are designed to handle wastewater biologically without chemicals, unexpected fluctuations or contaminants can occur. We recommend STP Solupak, as this product acts as a safety net, proactively maintaining optimal conditions for the microbes in the bioreactors. For years, G & O Bioreactor has worked closely with GNC Marine. The products offer high performance… Read more

Handling wastewater on larger ships is becoming an increasing challenge due to tighter environmental legislation and customers’ growing demand for green solutions. Danish JD-Contractors, which operates several large ships, has experienced significant problems with their maritime purification systems. Bjarne Sørensen, Marine Superintendent at JD-Contractors, says: “On our ship CABLE ONE, we had two purification systems… Read more

The tunnel is expected to play a significant role in Europe’s future sustainable transport network by encouraging the shift of freight transport from road to rail and thereby providing an efficient alternative to road transport. At Gertsen & Olufsen Bioreactors, we are proud to be part of the Fehmarnbelt Tunnel project. Our water treatment plant,… Read more