Jump directly to main navigation Jump directly to content

Pre-assembled greywater recycling systems

With our complete greywater systems, we offer a series of well thought-out, pre-assembled systems with internal tanks. The advantage of these package solutions is that all components are coordinated with each other. This leads to a fast project handling, little planning effort, easy installation and commissioning as well as safe operation of the system. Even larger systems can be created by connecting two systems in parallel. This is usually more efficient than individually planned systems or underground tank systems.

Decisive advantages of the INTEWA system

If you choose "Show Video", you agree with the privacy policy of Google.
Show Video

Certified safety

The INTEWA system is the first and only system in the world to be certified to the NSF Standard Class C (commercial type) standard for commercial installations and also to the British Standard for spray irrigation.

learn more

reagenzgläser.jpg

Water quality

INTEWA grey water systems provide crystal clear water through ultrafiltration.

The following table describes NSF influent water qualities and the effluent water qualities achieved by INTEWA.

learn more

 

Kubikmeter_Text_EN.png

Low space requirements

The INTEWA greywater systems require very little space, as the water is produced daily and can be reused directly. One cubic meter of water for daily use can be stored on one square meter of space. You can see what such a system can look like in our virtual exhibition.

360° referenes

Functionality of AQUALOOP greywater systems

Prefiltration and bioreactor

In the AQUALOOP complete greywater systems, we use prefabricated, stable, opaque and reinforced internal tanks.

The greywater from showers, bathtubs and hand washbasins is pre-filtered through a highly efficient PURAIN filter before entering the bioreactor. The dirt collected in the PURAIN filter is regularly flushed back into the sewer using a backwash nozzle.

In the core of the plant, the bioreactor, continuous biodegradation takes place. This is achieved by means of a tubular diffuser located at the bottom of the plant and packing floating in the water. This fine-beaded diffuser, which is supplied with oxygen by a blower, creates an aerated fluidized bed, which is a prerequisite for the growth of bacteria within the greywater. Settlement occurs here on the many hundreds of AQUALOOP packed beds, which are special suspended bodies with a large surface area. A sludge pump, which is also located at the bottom, periodically removes any sediment that is formed.

Membrane station and control

The bioreactor also contains the AQUALOOP membrane stations, which filter the greywater into the clear water storage tank. For this purpose, all membrane stations with a treatment volume of 600 to 21,00 liters per day are equipped with a filtration and backwash pump. For plants with a treatment volume of 32,400 liters per day or more, one central filtration and backwash pump each is used. Due to the small membrane pore size of 0.02 µm, particles, bacteria and viruses are retained by ultrafiltration.

 

The membranes are periodically cleaned by backwashing and by coarse air bubbles. The three plants in the smallest category are controlled here with the aid of an AQUALOOP controller. Systems with a treatment volume of 5,400 l/day or more are equipped with the browser-capable I-CONNECT control system  and the automatic chemical cleaning technology I-CON-ADS. This enables even more economical and low-maintenance operation, especially for the larger systems. Smaller systems, on the other hand, are equipped with the triple membrane surface to minimize the required maintenance intervals.

Further process

The clean service water is pumped to the consumers by our various pressure boosting systems, such as the RAINMASTER systems, depending on the calculated and required flow rate and pressure. The service water can be used for consumers such as toilets, washing machines or irrigation. In order to achieve the greatest possible safety, the already ultrafiltrated service water passes through a UV treatment as the last stage. The dimensioning of the UV disinfection system is done according to the dimensioning of the pressure boosting system.

 

 

Overview of pre-assembled complete systems

Greywater systems

Treatment [l/day]

AL control

I-CON-ADS

I-CONNECT

Central

filtration &

backflush pump

  EU

  US

AL-GW600

600

 

 

 

 

AL-GW1800

1,800

 

 

 

 

AL-GW3600

3,600

 

 

 

 

AL-GW5400

5,400

 

 

AL-GW10800

10,800

 

 

AL-GW16200

16,200

 

 

AL-GW21600

21,600

 

 

AL-GW32400

32,400

 

AL-GW48600

48,600

 

 

Prefabricated greywater recycling systems

  1. PURAIN filter
  2. Bioreactor
  3. Membrane station (incl. filtration & backwash pump)
  4. Clear water tank
  5. AL control system
  6. Pipe diffuser
  7. Blower for pipe diffuser
  8. Blower for membrane station
  9. Sludge pump
  1. PURAIN filter
  2. Bioreactor
  3. Membrane station (incl. filtration & backwash pump)
  4. Clear water tank
  5. I-CONNECT system control with touch display
  6. Pipe diffuser

  7. Blower for pipe diffuser

  8. Blower for membrane station

  9. Sludge pump
  10. I-CON-ADS cleaning technology
  1. PURAIN filter
  2. Bioreactor
  3. Membrane station
  4. Clear water tank
  5. I-CONNECT system control with touch display
  6. Pipe diffuser
  7. Blower for pipe diffuser
  8. Blower for membrane station
  9. Sludge pump
  10. I-CON-ADS cleaning technology
  11. Central filtration pump

  12. Central backwash pump

With our knowledge portal, we offer you a wide range of information on the topics of rainwater management and water reuse.

Find the right system size for you with our online planner.

You can find further planning aids here.