Solar powered,

no chemicals and

no running costs!


Water disinfection system to provide safe water


Automatic, solar-driven water disinfection system for up to 20.000 liters of pure, disinfected, safe, and healthy water daily.  It is working fully solar-driven, but can also be used on grid or with a backup battery. It is designed for easy maintenance and almost zero running cost, without any having any chemicals to be added. We're using high technology to make life safe, while keeping it simple and providing safe water. We make the water quality visible, as the water quality can be monitored by our App.

Our solar water disinfection system - we call it INTEWA (intelligent water system) - is automatically delivering safe, disinfected water. We use state of the art technology


    to create safe and healthy water

    to make the system easy to operate and maintain

    to have almost zero operation cost

    to safe your childrens health



Please learn more about our product & projects on this website.

Automatic water disinfection

system of intewa

Our system pumps water from wells, rivers, or water towers and automatically filters, disinfects, and monitors water quality in real time. Powered by solar energy, it ensures safe, reliable drinking water with smart control, remote monitoring, and automatic regulation.

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Automatic disinfection


The system continuously monitors water quality and automatically adjusts disinfectant production. Disinfection increases when water quality drops and is reduced to a minimum when water quality is good—ensuring safety while avoiding over-treatment.

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Monitoring


Real-time monitoring:

Water quality and system data are displayed on the built-in touchscreen and via a visible light signal.

Remote access:

 All data is sent to the cloud through the integrated GSM module and can be viewed on PC, laptop, or smartphone.

Smart alerts & control:

Multiple systems can be remotely monitored and controlled, with automatic alarms sent to maintenance teams in case of malfunction.

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Water Volume


Up to 24,000 liters of clean drinking water per day

Water production volume depends on raw water quality and accessibility

Cleaner source water and short pumping distances allow maximum output; lower-quality water or long pumping distances reduce daily capacity

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Power


Flexible energy sources

The system can be powered in five ways:

  1. Solar (8)
  2. Solar (8) and battery (9)
  3. Solar (8), battery (9) and grid backup (11)
  4. On grid (11)
  5. On a pick up with a car battery or cigarette lighter (12)



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Maintenance


Maintenance is simple and requires only a lemon and a (tooth)brush.

  • The lemon is used to clean the disinfection cell about every 4 weeks.
  • The brush is used to clean the filters.


The system comes with washable stainless steel and ceramic filters. Polycarbonate filters can be washed or easily replaced.
Depending on raw water quality, special filters (e.g. for arsenic, iron, fluoride) may be provided.
The system should be kept clean, especially the solar cells.

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Requirements & limitations


INTEWA systems do not desalinate seawater.

Rainwater requires mineralization, as it contains too few minerals.


A minimum of 40 mg Cl⁻/l is required and can be added using a mechanical dosing pump (optional accessory).



More information

Where it works


Public Water Supply

  • Water towers

    The INTEWA system in this water tower is making all the water drinkable. The water is controlled every 10 seconds and INTEWA is adjusting itself automatically on eventually occuring infections.



    Benefits:


    -Automatic disinfection without adding chemicals – the chlorine is produced by an electrolysis cell out     of the minerals in the water

    -Automatic adjustment of chlorine production through permanent monitoring      

    of the water qualitiy

    - Remote monitoring via integrated GSM module

    -Alarm function to smartphone or control room

    -Only solar energy needed, but also on grid   production is possible

    -Automatic residual disinfection according to national laws and WHO reccomendation

  • Water towers for raw water

    Deep well, surface water and other wells



    The Intewa1 system has an integrated pump, that is controlled by the central control unit. The integrated pump is pumping water from up to 70 mtr and is also operated by solar energy (but on grid is also possible). As in the Intewa1 circulate also here a sensor in the water tank is monitoring the water all the time.



    Benefits for rural areas:


    -Pump water from iup to 70 mtr or over long distances

    -Fully solar driven for remote Areas, but also on grid production possible

    -Automatic disinfection without adding chemicals – the chlorine is produced by an electrolysis cell out of the minerals in the water

    -Automatic adjustment of chlorine production through permanent monitoring of the water qualitiy

    -Remote monitoring via integrated GSM module

    -Alarm function on smartphone or control room

    -Automatic residual disinfection accordiung drinking water laws




  • Rural areas and decentralized water supply

    Especially for rural areas the INTEWA System is providing important benefits.



    Rural Areas often have no access to public water, and the piping costs would be very high. Sometimes the energy supply is not stable or not even available. Therefore people living in rural areas have often no access to disinfected water.



    The INTEWA system is providing safe, disinfected water in rural areas, where there is no energy available. No chemicals have to be bought and added in, because the disinfectant is produced inside the system out of the minerals in the water itself.




    Benefits for rural areas:


    -Fully solar driven water disinfection and operation

    -Automatic disinfection without adding chemicals – the disinfectant is produced by an electrolysis cell out of the minerals in the water

    -Automatic adjustment of chlorine production through permanent monitoring of the water qualitiy

    -Remote monitoring via integrated GSM module

    -Alarm message to smartphones or control center

    -Automatic residual disinfection accordiung drinking water laws




Benefits


Health Benefits


Leaving the minerals in the water

The water produced by INTEWA is leaving the essential minerals in the water. Conventional systems like RO systems (reverse osmosis) are filtering out all life essential minerals from the water. Reverse osmosis water is dead water, with no use for the body. As water is a nutrition it shall contain the minerals the body needs for basic health. Drinking too much reverse osmosis water is suspected to cause mineral lack based diseases.


Bacteria free, Virus free, Legionella free, Protozoa free …

INTEWA is disinfecting automatically. The sensor in the freshwater tank is detecting signs for bacterias, viruses, legionellas and protozoas in the water. The system is automatically reacting and producing the disinfectant which is needed to kill all bacterias.



Be safe, feel free, drink and dont worry about waterborne diseases!

Environmental benefits


"Each system is saving CO2"


Each system is saving CO2. How much is depending on the current water disinfection method. In many countries water is boiled to be disinfected. For example:


Please ask us for more information about CO2 reduction and environmental benefits.



"Vietnam would save more then 12.000.000 MWh (twelve millions) energy per year and save more then 24.000.000 t/CO2 (twenty four million), when the water disinfection would be all done with INTEWA."

Social Benefits


The social benefits of providing safe, potable tap water to a community can just be estimated, but there are huge social benefits.


  • People don’t need to worry anymore about how to get safe water
  • The cost for healing water based diseases will be zero
  • The productivity will grow
  • …and families can create their income by being responsible for the water supply.

Eliminate waterborne diseases for children is a very important duty. Children learn how water can be safe and will have a driving motivation for future development.


In addition schools can sell water (in 20 ltr. bottles) and earn some money to top up their budget.



Please feel free to ask us about our current projects and our school solutions: info@germanwatertechnologies.com.

To provide safe and disinfected water out of every water tap in the hotel is not only a safety reason, but also a very important marketing advantage.



With the INTEWA hotels not only automatically disinfect from bacteria and viruses automatically, but also get free from Legionella’s. And all this happens fully automatically, without the need to buy chemicals and apply major maintenance.



The monitoring solutions allow the hotel guests to check the water quality online.


The hotel management can also record the water data for future legal or insurance purposes.


With the additional INTEWA bottling system hotels can also produce and bottle their own water.


Hotels can also install a decentralized disinfection system,


Please ask us more about our hotel solutions.

Hospitals have the biggest need for disinfection, and it is most important to provide residual disinfected water in hospitals, clinics and health stations.



Hospitals know very well about chlorine disinfection, because it is the most effective and most secure disinfection.



With the INTEWA hospitals can automatically provide safe, disinfected water out of every water tap.


The integrated monitoring allow to controll and record the water quality and other system data


The automatic alarm function gives the responsible technicians an immediate alarm, so that everybody can react immediately.

Having the INTEWA system in the condominium building not only upgrades the value of the apartment, it also creates a modern standard for future living.


The possibility of having a safe water monitoring in every apartment creates a new value of living quality.



With the INTEWA system the building management can control and monitor the water quality online


There is only a minimum of maintenance needs


And there is no need to purchase and add chemicals


Please ask us about our condominium building solutions.

INTEWA in private houses and communities give a better and modern living style.


Whether in private houses or in a community, safe tap water, residually disinfected, is protecting all community members from water based diseases.


Automatically and without the need to add any chemicals.


The monitoring system is allowing every household to check the water quality permanently.


The automatic alarm function will assure that no waterborne diseases are coming through the pipes at any time.


Please ask us to learn more about our community solutions.


INTEWA is automatically controlled and comes without the need to add any chemicals.

Factories need disinfected drinking water:


For the employees, to assure the health and avoid waterborne diseases


For the canteens to have residual disinfected tap water to assure the requested hygiene


For employee´s motivation by allowing them to bring disinfected water home to their families



INTEWA has almost zero running costs. 


The integrated monitoring solution makes it easy to maintain and react.


The residual disinfection assures safe water out of every water tap in the company.


Please ask us about our solution for modern, future orientated factories

Remote tourist attractions are frequented by thirsty tourists. For their needs drinking water has to be transported to remote places. With the INTEWA system safe, disinfected drinking water is produced directly on the location.




Not even on grid energy is needed, as INTEWA can be fully powered by solar energy.



There are no chemicals needed to add to the water for disinfection.


INTEWA is automatically disinfecting the water out of the minerals in the water itself.


The integrated monitoring system makes the water quality visible.


The integrated GSM module assures that maintenance periods are sent to the responsible maintenance technicians.



Please ask us more about our solutions for remote locations.

Having INTEWA in religious places safe drinking water can be provided to prayers and visitors.


Plastic bottles can be avoided and safe water will flow out of every water tap, automatically disinfected, without the need to buy chemicals. The very easy maintenance assures a permanent production of safe, disinfected water.



Please ask us more about our solutions for religious places.

  •     Breweries
  •     Ice factories
  •     Food processing industry
  •     Golf courses
  •     Restaurants
  •     Massage parlours
  •     Pools, spa and wellness areas
  •     Construction and Mining sites
  •     And and and…

Support


We offer all the technical support that you need


"Our German technology is providing

 the best quality standard."

To assure a quality product though it is necessary that solid and good quality installation is provided. We can help you to find solutions for your local water situation. To support the customers we offer various technical support.

Local technical support by native speakers

 To be able to create a perfect water system on your location, we take care that the work is done by reliable, native speaking technicians. 

Installation training and consulting

To install the INTEWA system we provide you with all the know-how you need.

 Monitoring software installation training

The quality of the water is constantly monitored online. We train you to monitor the INTEWA system and react in the right way to maintain the water supply.

Please contact us: support@germanwatertechnologies.com We will get back to you immediately.

People are concerned about disinfection by heavy metals and trace substances but still die of cholera. Pathogen removal is of most important concern to assure safe drinking water conditions.

John Fawell,  drinking water expert and coordinator for the WHO guidelines for drinking water quality, World Health Organisation.

Cost benefits compared to the water price

Compared to the water price in almost all countries you get the cubic meter (1000 liters) tap water for a cheaper price and with a better quality. You can drink the tap water that is produced by the INTEWA system, and you can be sure, that it is safe, because it is monitored online permanetly. The price for public water is higher in most countries than the water disinfected by Intewa. But the public water is mostly not potable. The cost for one cubic meter of residual disinfected water with the Intewa system are – depending on the raw water quality – around 11 cent.


For this you get German standard safe tap water. Everywhere. Anytime


Cost benefits through energy efficiency


The INTEWA system is consuming only 220 W to produce 1000 liters of disinfected potable water.


Compared to this RO is consuming between 3.000 W and 12.000 W to produce 1000 liters of dead (mineral free) water. RO is also producing 50% waste water. This is a problem when wastewater has to be paid for.


UV is consuming 500 W per 1000 liters, but does not provide any residual disinfection. This means that the water can be re-infected again immediately after disinfection.


Boiling is using the most energy, it is about 92.000 W per 1000 liters.

Business model water kiosk


There are several good business models, that provide a quick pay back period. One of them was developed by a team of the Thammassat University in Bangkok and won some prizes at several international business plan competitions. Here is the model for the water kiosk:


The investment cost are including the shop.


 Business model:



 decentralized water supply

Dezentralized water supply is one of the new world decentralized concepts, that will change our infrastructure, like the decentralized energy supply (by solar roof top systems) or the decentralized data and knowledge supply (Internet).

Creating dezentralized water supply and disinfection structures safe lots of money.

  • There are no pipes needed to be built in remote areas
  • The remote villages can be connected
  • Redundant systems can provide safe tap water out of every water tap
  • All systems can be controlled central. Maintenance cost are saved

Please ask us for more information about our decentralized water supply concepts.


Disaster and


emergency


  • Stationary systems

    Coming soon

  • INTEWA mobile systems for desasters

    Mobile systems can be brought directly to the location where disinfected water is needed. The start to operation time is 30 min, after about 1 hour the fully automatic disinfected water is available.

    • The INTEWA for emergency can be brought by a pick up or a small boat or even by walk to the location. The weight of INTEWA for desaster is about 38 kg.
    • The size of the mobile system for  desasters is 80 x 60 x 40 cm, plus the water tank that is needed for the disinfeted water.
    • The power can be provided by the battery of the car or by solar cells.
    • The system is automatically disinfecting the water and assure that there is no infection for the people who need help because of infected water.


    INTEWA is avoiding water based deseases in cases of desaster.


    Please ask for more information about our mobile disinfection system.

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