BIOCOS® (BIOlogical COmbined System) is an innovative and sustainable wastewater treatment technology that combines the robustness of activated sludge with the efficiency of granular sludge. Designed as a fully hydraulic, air‑controlled process, BIOCOS® delivers high treatment performance in a compact and cost‑effective system, making it an attractive alternative to conventional activated sludge plants. The technology uses unique sludge selection and a cyclic process entirely driven by air, eliminating the need for pumps, mixers or other submerged mechanical equipment. When combined with inDENSE® technology, BIOCOS® forms a dense, fast‑settling biomass that ensures excellent removal of carbon, nitrogen and phosphorus (Bio‑P). This results in consistently high effluent quality, low maintenance requirements and energy savings of up to 25%. With its small footprint, proven reliability and more than 150 installations worldwide, BIOCOS® is ideally suited for both new plants and upgrades where space, energy efficiency and operational simplicity are key.

Climate change, population growth, and extreme weather events are placing increasing pressure on water systems. Energy consumption and the CO₂ footprint can be reduced by implementing energy-efficient, sustainable, and compact wastewater treatment systems such as BIOCOS®. BIOCOS® technology (BIOlogical COmbined System) offers a smart, sustainable, and space-saving solution for the biological treatment of wastewater and is a cost-effective alternative to conventional activated sludge systems. This hydraulic system combines the power of activated sludge with the efficiency of granular sludge and stands out through its unique sludge selection and cyclic process, fully controlled by aeration. Thanks to integration with inDENSE® technology, a compact, fast-settling biomass is formed, ensuring excellent removal of nitrogen, phosphorus (Bio-P), and carbon. The result? A robust system delivering high effluent quality, minimal maintenance requirements, and energy savings of up to 25%. Afbeelding: Waterschap Vallei en Velluwe - 3D ontwerp RWZI Hattem.

Biodesign is H2O BFS’s technical support service for designing effective, reliable, and efficient biofouling control systems for seawater intakes and cooling water systems. Rather than relying on routine or reactive dosing, Biodesign addresses biofouling at its root: system design. By combining Computational Fluid Dynamics (CFD), engineering expertise, and biological insight, Biodesign ensures that dosing systems deliver full coverage, proper mixing, and consistent protection across all critical surfaces. Using field-proven dosing strategies including the Ecodosing™ methodology, Biodesign supports the design and optimisation of electrochlorination and chlorine dosing systems that perform as intended under real operating conditions. This design-led approach reduces overdosing, improves operational reliability, and minimises corrosion, downtime, and environmental impact. Whether you are developing a new facility or upgrading an existing system, Biodesign provides a complete, future-proof biofouling control strategy- from concept and design validation to performance optimisation with guaranteed effectiveness.

An AEC biofilter is an eco-friendly and highly effective solution for controlling odours in various applications. It utilizes biologically active materials, known as biomass, to support odor-degrading microorganisms such as bacteria, fungi, and yeasts. These microorganisms naturally break down odour-causing compounds, making biofilters a sustainable alternative to chemical or mechanical odour control systems. Biofilter technology: A sustainable solution for clean air Biofilters are a proven and eco-friendly method for odour removal and the treatment of airflows with low or undefined concentrations of contaminants. Through integrated biological regeneration, microorganisms in the biofilter naturally break down harmful substances. This environmentally friendly technology operates under optimal conditions: Ambient temperature: No additional energy required for heating. Neutral pH levels: Ideal balance for microbial activity. Normal pressure: Simplified installation without complex pressure systems. We have successfully implemented biofilter solutions in various industries: Wastewater treatment: Managing airflows containing hydrogen sulphide and other odorous compounds. Composting: Addressing odour issues during organic material processing. Waste management: Eliminating odours in waste storage and processing facilities. Food production: Removing organic odours and volatile compounds.

In order to ensure the safety of a biogas plant, the treated biogas is analysed in real time for the parameters: - O2 - H2S - CH4 - CO2 By continuous monitoring of these parameters, the occurrence of explosive mixtures is prevented and various options for feedback mechanisms are available to allow for fully automatic protection of an installation. We also offer an option for fully automatic calibration.

Biogas must be stored in a responsible way in order to maintain a constant pressure and to homogenise the gas. Membrane gas holders and gas bags are suitable means for this purpose. In addition to standard UV and weather resistant designs, we offer customised products to suit your needs, including - Pressure regulation - Overpressure protection - Blowers - Level measurement

Optimaal ontzorgen onderhoud Biogas-Actief Kool filterunits door metingen-analyse-leegzuigen-afvoeren AK - levering nieuw AK en weer vullen van de filterunit.

A continuous supply of seawater to an industrial facility (e.g. power and/or water producer, refinery, petrochemical plant, etc.) is critical to guarantee its full production potential. An unexpectedly high volume of biological material (e,g, jellyfish, fish, seaweed) can put production at risk by overwhelming the seawater intake screening system, resulting in a complete blockage and a trip of the plant. To prevent this risk, H2O BFS has developed a specialist service called Bioprotect, in which we combine early warning and deterrent systems with optimisation of screening design/operation to reduce the risk of an unscheduled stoppage. Working with a unique team of experts in the field of screening, marine ecology, and seawater intake systems, we provide dedicated solutions to prevent the risk of an unplanned shutdown due to the ingress of high volumes of biological material. The Bioprotect service is effective to guard against risks arising from: - Schooling fish - Jellyfish blooms - Marine mammals - Marine turtles - Seaweed and Seagrass

Monitoring of biofilms is particularly important when water treatment is the primary approach to prevention of micro-organism settlement, biological scale accumulation and MIC. To monitor the activity of these sessile organisms an electrochemical biofilm activity monitoring system has been developed to monitor biofilm activity on-line and in real time. It has been shown to be effective for predicting biofilm activity on-line and as a continuous measure of biocide effectiveness. Because of the fact that the growth of micro-organisms is stimulated on this probe, the system provides an ‘early warning’ so that immediate action for preventing biofilm formation in the seawater system can be made when treatment proves not efficient. It provides the system engineer, water chemist, or maintenance specialist with a powerful tool for planning inspections, for scheduling on-line or off-line cleaning, or for adjusting the timing and dosage of water treatment, and most importantly avoiding biological scale accumulation.

When water (sea, brackish, fresh) comes in contact with man-made solid surfaces, such as conduits and pipework of an intake water system, surfaces are colonized by living organisms in standard patterns. Generally two types of biofouling can be distinguished: Micro fouling, a slime layer consisting of different types of bacteria (biofilm). Macro fouling, shell type organisms like oysters, mussels and barnacles. To provide operators real time insight insight in the risk of biofouling settlement within the water system, H2O BFS developed Biovision service. This provides real time biofouling monitor system to achieve an early warning for biofouling build up in the system.

We are the sales and service office for the Benelux region of Börger GmbH, a family owned German manufacturer of industrial rotary lobe pumps and choppers. We supply solutions for many different pumping applications in numerous industries either in the form of stand alone products or as customized (mobile) systems with control panels.

Innovation. Excellence. Sustainability. Safe water, anytime, anywhere. Innovative solutions for easy and fast water monitoring.

A boiler converts natural gas or biogas into thermal energy. By means of heat distribution, this energy can be distributed to various processes. If only heat needs to be produced, we offer the option of installing a (steam/hot water) boiler.