Our technicians can support you in identifying and carrying out the maintenance work specifically required for your biogas plant, biogas utilisation or industrial heat systems. With an on-site visit, the entire installation is inspected thoroughly and points of attention are addressed immediately. This allows you to guarantee and increase the safety and continuity of your process. Gascamera Despite intensive maintenance, gas leaks can occur in a biogas installation. The release of biogas, and with it harmful residual products, can lead to dangerous situations. This must be avoided at all times. Leaks can occur because pipework expands or shrinks as a result of changing temperatures or seasonal influences. This can cause small openings at pipe connections, through which gas can easily escape. Our specialists use advanced gas detection equipment that is capable of detecting and visualising more than 400 different types of gas by means of so-called Optical Gas Imaging (OGI). Our inspections are carried out according to the guidelines of the NTA 8399 by gas measurement certified specialists. Preventive measuring and timely detection of leaks ensures better safety, higher efficiency and emission reduction. For more information visit www.gascamera.nl.

The CirTec fine screen is a rotating belt filter designed for separating suspended solids from water. Depending on the application and the solids to be removed, the machines are equipped with a screen cloth with a mesh size ranging from 90 to 1,000 microns. The fine screen models are available in various machine sizes, allowing a wide range of flow capacities to be processed. By combining multiple machines, any required flow rate can be handled. With around sixty operational fine screens in the Netherlands, CirTec is the market leader in fine screening technology in the country. Fine screens can be used for various applications, including reducing the load on downstream treatment processes and effluent polishing. CirTec has references at both municipal wastewater treatment plants and across a wide range of industries, such as food production, recycling, and tanneries.

For interim assignments, you can contact us. We're not here to mind the shop, but to guide change processes. With a keen eye for the human side, expert knowledge of the subject matter, and a focus on results, we achieve agreed-upon objectives. Are you stuck in your operational process? Our consultants can take on operational work packages within your organization for a fixed period. We can deploy quickly and, in addition to the necessary breathing space, bring fresh energy and a sharp perspective.

Separation of solids from waste water and process water by means of an internally-fed wedge wire or perforated rotating drum screen.

Introduction of the FDM‑14: Operational monitoring for single‑phase adsorption dryers Smaller single‑phase adsorption dryers from DST‑Seibu Giken often lack an integrated monitoring function. As a result, it is not always immediately visible whether the dryer is dehumidifying or if a fault has occurred. Especially at installations with multiple units or unattended locations, this can lead to unnecessary service visits or delayed fault detection. With the introduction of the FDM‑14, D&F Techniek offers a practical solution. Practical upgrade for existing installations Until recently, operational monitoring was only possible if integrated during production. This increased the cost and offered no option for retrofitting. The FDM‑14 now makes it possible to equip existing single‑phase adsorption dryers with an external monitoring module. This enables users to see at a glance whether the dryer is running or if a fault is present. For locations with multiple dryers, it provides better oversight and faster alarm detection. Fewer unnecessary service visits Faults on smaller dryers are not always noticed right away, or a service engineer must visit the site only to find that the unit is working correctly. With the FDM‑14, alarms can be forwarded via volt‑free contacts, enabling remote fault detection and more efficient maintenance planning. Suitable for single‑phase adsorption dryers The FDM‑14 is developed for single‑phase adsorption dryers from DST‑Seibu Giken, but in some cases can also be used with dryers from other brands. This makes operational monitoring more accessible, without switching to a fully integrated control system.

Wastewater treatment plants are the largest municipal energy consumers, with a large percentage of the energy within a plant being used to generate the compressed air for the aeration system of the activated sludge plant. Consequently, this is where there is the greatest potential for optimization within the plant as a whole. INVENT has specialized in this very topic and, with a broad portfolio of aerators, is able to offer an optimized solution for all embodiments of the activated sludge process. Adding an innovative control concept and the iTURBO®-Blower to our product range enables us to implement highly efficient complete systems by taking a holistic approach.

The CYBERFLOW®-Accelerator is a revolutionary advancement over conventional flow generators. It has been specially developed and optimized for the most energy efficient generation of horizontal flows in applications such as biological wastewater circulation in donut, racetrack or carrousel type basins. Extensive research and development have led to efficiency improvements of traditional flow generators, regardless of the application. Optimization approach: This is made possible by a holistic, fluid mechanical optimization approach, which considers not only on the propeller design, but the interaction of the flow with the entire machine.

The INVENT HYPERCLASSIC®-Mixer is a vertical shaft mixer with a hyperboloid-shaped mixer-body installed close to the bottom and a dry-mounted drive. The rotation of the mixer body close to the bottom generates high-speed and turbulence at the bottom of the basin. This reliably prevents the settling of sludge particles. Its efficient design and the use of rugged materials minimizes operating and maintenance costs. The HYPERCLASSIC®-Mixer is the optimum mixer for all suspending and homogenization tasks required for applications in the area of water and wastewater treatment.

The HYPERCLASSIC®-Mixing and Aeration System was introduced in numerous process stages of municipal and industrial wastewater treatment plants over 25 years ago. Uniquely, it combines the features of an agitator with those of an aerator, offering an extremely flexible range of operation and use: Agitation without aeration Fine bubble aeration with simultaneous homogeneous and deposit-free mixing Intermittent operation (e.g. SBR process, MAB) The sophisticated design, the rugged construction and the mechanical aeration principle make this agitation and aeration system very versatile. As such, INVENT offers a reliable and variable solution for complex problems: High oxygen supply capacity even in difficult media (high TS, surface-active substances) No increase in pressure drop during operation in contrast to membrane aeration No aerosol formation Deposits are avoided in all operating stages Design in lift-out version available Materials are matched to operating conditions (temperature, pH, salinity, precipitation, etc.) The HYPERCLASSIC®-Mixing and Aeration System is tailored to your requirements on a case-by-case basis and can be supplied in a number of versions – for installation on a bridge/tank cover, lift-out, submerged or floating.

The iTURBO®-Blower is a centrifugal compressor with individually optimized precision rotating bodies. An intelligent operating concept with multiple machines enables the setting of optimum operating points to achieve maximum efficiency. Customer-specific pressure stages achieve the peak efficiency at the operating points that are most frequently approached based on the aeration strategy. This contributes to a significant reduction in energy consumption. The iTURBO®-Blower is driven by a high-speed PMSM (permanent magnet synchronous motor) with frictionless high-performance air bearings. The motor operates with an integrated frequency converter with an efficiency level > 96%. Not only does it drive the motor, but it also monitors the torque, power, and speed supplied to the motor, for reliable, low-maintenance operation. The compact and lightweight design ensures quick and easy installation.

INWAgreen is a product range of biodegradable water treatment chemicals for industrial applications. The portfolio includes corrosion inhibitors for cooling and recirculating water systems, hardness stabilizers for scale control, and flocculants for wastewater treatment. The formulations are based on biodegradable and phosphate-free active ingredients. They are used to reduce corrosion, control the precipitation of hardness-forming minerals, and support the separation of suspended solids from wastewater. As such, they meet the same technical requirements as conventional water treatment products and can be integrated into existing treatment programs. By avoiding the use of phosphates and poorly biodegradable substances, INWAgreen products help reduce the environmental impact of water treatment processes. At the same time, they maintain the treatment performance required for reliable and efficient system operation.

INWATROL adplus is a system for the automated generation and dosing of monochloramine in cooling water systems. The unit produces monochloramine on-site from two precursor chemicals and delivers the biocide directly into the water circuit according to system requirements. This approach eliminates the need to store large quantities of finished biocides and allows dosing rates to be adjusted to changing operating conditions. Monochloramine is used to control microbiological contamination in industrial water systems. It is effective against Legionella, Pseudomonas, slime-forming bacteria, sulfate-reducing bacteria, algae, yeasts, and fungi. In addition, monochloramine supports the reduction of biofilm formation and helps minimize the risk of microbiologically influenced corrosion within cooling water systems. The dosing process is fully automated and can be adapted to the specific requirements of the application. Both dosing quantities and dosing intervals can be configured and adjusted as needed. The system is suitable for a wide range of cooling water installations, including large-scale systems with varying water volumes and operating conditions. INWATROL adplus can be integrated into the INWAnet online monitoring platform, allowing operating and dosing data to be continuously recorded and accessed remotely. The system automatically generates alarm notifications if predefined limits are exceeded or if operational faults occur, enabling operators to respond quickly and take corrective action when necessary. As with all INWATROL systems, INWATROL adplus is designed and configured according to the specific requirements of each installation. System layout, dosing strategy, monitoring functions, and communication interfaces are tailored to local operating conditions, resulting in a solution that is adapted to the application rather than requiring the application to fit a predefined standard.

INWATROL expert is a modular monitoring, control, and automation system for cooling water and boiler water systems. Each installation is individually designed to meet the specific requirements of the application, enabling the continuous measurement and monitoring of water quality and operational parameters. Depending on the requirements, a wide range of measurement technologies can be integrated, including pH, conductivity, redox potential, turbidity, inhibitor concentrations, and other application-specific parameters. In boiler water systems, for example, dissolved oxygen measurement can be incorporated to continuously monitor water quality and detect conditions that may promote corrosion at an early stage. All measured values are continuously recorded and can be accessed and evaluated via the INWAnet online platform or existing process control systems. If measured values exceed or fall below predefined limits or target ranges, the system automatically generates alarm notifications. This enables operators to respond quickly to changing operating conditions and take corrective action when required. A key feature of INWATROL expert is its focus on customer-specific requirements. Rather than relying on fixed standard solutions, each system is individually planned and configured to suit the application and operating environment. Thanks to its modular design, INWATROL expert can be installed in both new and existing systems and can be expanded with additional measurement and control technologies as requirements evolve. The result is a solution tailored to the specific needs of the process, providing continuous monitoring and supporting the efficient control of water treatment programs.