NeoDeWa water treatment system 300 l/h – 300-litre tank

The benefits of NeoDeWa

NeoDeWa from HeylNeomeris is a modular water treatment system that supplies deionised water for the reprocessing of sterile medical devices in outpatient facilities.

At the heart of the system is bespoke design: every NeoDeWa system is individually tailored to local conditions and actual requirements. Factors taken into account in the design include the existing water quality, the degree of hardness and the required water volume. Existing treatment stages provided by the water supplier are also taken into consideration.

Your benefits with NeoDeWa:

• Customised configuration to suit the existing water quality
• System capacity tailored to actual water requirements
• Suitable for use with different levels of water hardness
• Flexible modular system for a needs-based configuration
• Compact design despite customised configuration

The result is a water treatment system that is precisely tailored to the requirements of your outpatient treatment centre – efficient, space-saving and needs-based.

Deionised water treatment for outpatient care

Deionised water is a key component in the standard-compliant reprocessing of instruments and medical devices. It is used, amongst other things, to supply cleaning and disinfection units (CDUs) and sterilisers in instrument reprocessing, as well as in laboratories.

During the deionisation process, minerals, salts and other undesirable substances are largely removed from the water. This reduces deposits and residues on instruments and equipment, protects materials and lays the foundation for a hygienically safe reprocessing process.

Typical areas of application for deionised water:

• outpatient surgical centres
• dental practices
• dermatology centres
• endoscopy centres
• other facilities with their own instrument reprocessing

Reliably monitoring water quality

Consistently high water quality is essential for the reprocessing of medical devices. Relevant water parameters can therefore be continuously monitored, enabling changes to be detected at an early stage and the reprocessing to be reliably controlled.

Conductivity and silicate content are of particular importance here. Both parameters provide important information about the quality of the treated water and help to prevent deposits and residues on instruments and equipment.

The NeoDeWa water treatment system combines all the necessary treatment stages into a single modular system. Pre-filtration, water softening, reverse osmosis, further treatment and quality monitoring are optimally integrated.

The components used depend on the local water quality, actual demand and the individual requirements of the facility. The modular design also allows for the addition of further components at any time.

Depending on the specific design, the system may include the following components:

• System isolator to protect the drinking water network
• Pre-filters and activated carbon filters for targeted pre-treatment of the water
• Water softener to reduce water hardness
• Reverse osmosis system to remove the majority of dissolved substances
• Permeate tank with a capacity of 100, 200 or 300 litres
• Pressure-boosting station for a reliable water supply
• Two-stage mixed-bed system for further treatment
• Conductivity measurement for continuous monitoring of water quality
• Testomat® 808 SiO₂ for monitoring the silicate content
• Circulation loop for circulating the water when there is no draw-off

The system can also be optionally expanded to include, for example:

• Aqua-Stop and drip tray
• UV system
• Pyrogen filter
• Brine pumping system
• NeoTecMaster

With NeoDeWa, outpatient facilities do not receive a hodgepodge of unconnected individual components, but a holistically planned, fully integrated water treatment system for medical use – supplied entirely from a single source by HeylNeomeris.

The modular design allows for precise adaptation to the existing water quality, individual needs and the specific requirements of the facility. At the same time, the key water parameters remain reliably under control, and additional functions can be retrofitted at any time as required.

The result: a compact, flexible and needs-based solution for a reliable deionised water supply in the outpatient sector.

NeoDeWa Water Treatment System – Flexible capacity for varying requirements

The capacity of the NeoDeWa water treatment system is tailored individually to the deionised water requirements of the respective facility. Various capacity levels are available for this purpose:

• 90 litres per hour
• 150 litres per hour
• 230 litres per hour
• 300 litres per hour

The size of the permeate tank also depends on the required water volume. For capacity levels above 150 litres per hour, the permeate tank and pressure-boosting station are usually placed outside the cabinet system due to their dimensions. The specific configuration used depends on the on-site conditions.

During the development of the cabinet system, particular emphasis was placed on minimising the space required. Together, the two cabinets require a footprint of just 1.60 m × 1.00 m.

With each cabinet measuring 80 cm in width and 60 cm in depth, the system is also suitable for confined spaces. The double-leaf doors open only slightly outwards, thus facilitating access to the components.

The cabinets are made of sturdy sheet steel with a high-quality, durable surface coating – designed for long-term use in everyday outpatient practice.

NeoDeWa combines performance tailored to your needs, compact dimensions and a robust design in a seamlessly integrated system.

A system separator is required to prevent treated water from flowing back into the drinking water supply. NeoDeWa comes with an integrated Type BA system separator as standard.

It is located directly behind the optionally available Aqua-Stop at the water connection and ensures a secure separation between the water treatment system and the drinking water supply.

The Testomat® 808 SiO₂ continuously monitors the silicate content of the treated water, thereby enabling verification of compliance with the SiO₂ limit of 0.4 mg/l recommended by the DGSV and AKI.

Continuous measurement provides transparency regarding this important quality parameter and helps to identify at an early stage any potential adverse effects caused by an elevated silicate content.

The integrated conductivity measurement at the second mixed-bed unit continuously monitors water quality within a measurement range of 0–10 µS/cm.

A conductivity of < 1 µS/cm is recommended for the processing of medical devices. Continuous measurement allows for immediate verification of whether this value is being maintained.

The pre-filter section consists of a pre-filter and an activated carbon filter. Both serve to pre-treat the drinking water and protect the downstream water softener and reverse osmosis system from harmful contaminants.

In doing so, they lay the foundation for reliable and long-lasting operation of the subsequent treatment stages.

The water softener reduces water hardness by removing the hardness-causing elements calcium and magnesium from the drinking water and replacing them with sodium ions.

The ion-exchange process thus reduces the load on the downstream reverse osmosis system and protects its membranes from deposits and blockages.

Reverse osmosis reverses the principle of natural osmosis: the softened water is forced under pressure through a semi-permeable membrane. In this process, mainly water molecules and very small molecules pass through the membrane, whilst salts, bacteria, viruses and larger particles are largely retained.

The reverse osmosis system used in NeoDeWa achieves a retention rate of around 98 per cent with regard to dissolved substances in the water.

A sturdy cylindrical tank is used to store the treated water. Its uniform shape promotes efficient storage and facilitates cleaning.

The optimised tank design is also intended to minimise areas where microbiological contamination is likely to form – thereby contributing to hygienic storage.

The pressure-boosting station provides the required operating pressure and flow rate for the connected consumers.

This ensures that the treated water is available to the connected consumers as and when required, at the necessary pressure levels.

Further treatment is carried out by a two-stage mixed-bed system connected in series. The carefully matched resins remove any dissolved substances still present in the water following reverse osmosis.

The reduction of silicates is of particular importance here, as these can lead to undesirable deposits during the processing of medical devices.

If the optionally available buffer tank system is used, the mixed-bed system also handles the first stage of the recirculation process.

The optional Aqua-Stop acts as an additional safety device for the water supply and can automatically cut off the water flow if a fault or leak is detected.

It is installed as the first component directly behind the system’s main water connection. Two sensors monitor for potential water leaks: one in the cabinet’s base tray, and the second outside the cabinet at the level of the permeate tank and pressure-boosting station.

An integrated drip tray collects any leaking water and, together with the Aqua-Stop, provides an additional layer of safety for the cabinet system.

NeoDeWa can be optionally fitted with a UV system for water disinfection. The water is treated with UV-C radiation to reduce the proliferation or contamination caused by microorganisms.

Depending on the configuration, this can inactivate bacteria, viruses and protozoa, amongst others – the UV treatment takes place entirely without the addition of chemical disinfectants.

An optional pyrogen filter is used for the targeted removal of pyrogens from the water – substances that can trigger immunological reactions in the human body.

Relevant pyrogens include, in particular, endotoxins, which can be released, for example, by Gram-negative bacteria such as Escherichia coli (E. coli).

For installation sites without adequate free wastewater drainage, NeoDeWa can be optionally fitted with a wastewater lifting system that collects the wastewater produced and feeds it into the sewerage system.

The main volumes of wastewater are generated during the regeneration of the water softener and from the reverse osmosis concentrate.

Modern water treatment generates a wide range of relevant process data. For the recording, visualisation and processing of this data, NeoDeWa can be optionally fitted with the NeoTecMaster®.

This manufacturer-independent multi-parameter system enables the networking of different measurement systems and their integration into process automation, allowing relevant operational and quality data to be recorded centrally and presented clearly.

From pre-treatment through water softening and reverse osmosis to further treatment and continuous quality monitoring: NeoDeWa combines the individual process steps into a single modular system.

The capacity and configuration are tailored to actual requirements and on-site conditions. Additional components can be added as required – for deionised water treatment that can be flexibly integrated into a variety of outpatient facilities.