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Compact module for reverse osmosis

Reverse osmosis is a water purification technology designed to remove undesirable components, such as salt and calcium (but also dissolved dirt and bacteria) from the irrigation water. The method can be used for the purification of surface-, well- and process water.

Moor Filtertechniek, part of the Van der Ende Group, delivers compact reverse osmosis systems for both the horticulture and the industrial sector. The modular and patented system of the Nexus RO-unit can be used for the production of irrigation water, as well as water for spray systems. The innovative parts in these units are black blocks (see photo), based on patented Internal-Piping-Matrix (IPM) technology. This allows for compact and reliable custom-made systems.

Pressure Pipe Blocks
In the synthetic blocks, derived from a solid base material using CAD / CAM technology, all the necessary pipes have already been integrated. As a result, there is complete process-technological freedom in the selection of an ideal system. At the same time, the pressure tube blocks form the backbone of the system. In horticulture, common, conventional RO systems are based on a stainless steel frame and stainless steel piping. For the Nexus system, developers switched to a self-supporting structure. This allows for significant cost reduction, as well as simplification of the system. They merely need to be stacked according to need.

Membrane tube
The membranes, which sift all harmful ballast elements and germs out of the water, are placed in a 1.5-meter long tube. Such a membrane tube can purify about 1.25 m3 of water per hour. Because of the pressure tube blocks at the beginning and end of that tube, the modules are stackable.

The advantage of the standard modules is that no design department is necessary, which saves costs. To determine the installation, Ben Pellenbrink of Moor Filtertechniek only needs to ask the grower a few questions. What is the qualification of the polluted water, and how clean should the water be? What capacity is required? "If you know the pollution level of the water, you can choose the appropriate membranes and slide them into a tube. In order to achieve the required capacity, all you need to do is stack the membrane tubes,” says a sales consultant.

Source: Glastuinbouw Waterproof, by Harry Stijger
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