Solutions

PROCESS WATER

Our proprietary membrane filtration technology produces tailor made process water from any source, and allows closing the loop in the water cycle turning biological effluent into potable and process water quality.

MEMBRANE WATER TECHNOLOGIES

Membranes are (porous) selective barriers that will pass some substances and will retain others. In process water production applications and in wastewater treatment the substance to be passed is water. The substance to be retained can be very much dependent on the application. The driving force for the separation is generally a pressure gradient.

Our range of membrane-based products includes:

  1. Microfiltration and ultrafiltration
    This technology will typically retain suspended solids, colloidal material and bacteria
  2. Nano-filtration and desalination
    This technology will retain dissolved solids, hereby drastically reducing the salt content of the water.

Water reuse
This technology is a close-the-loop solution, with process water production from biological effluent.

INTEGRATED MEMBRANE SOLUTIONS

The combination of UF and RO enables the production of safe drinking water and process water from any source. The process of microfiltration and ultrafiltration will typically retain suspended solids, colloidal material and bacteria, while RO desalination will retain dissolved solids, hereby drastically reducing the salt content of the water.

The combination ensures that the produced water complies with the WHO (World Health Organization) regulations and make it a perfect and safe drinking water.

MEMBRANE BIO-REACTOR

Where space is scarce, a wastewater treatment plant’s footprint can be limited by replacing the sedimentation step by a compact membrane water/sludge separation device, which produces a high-quality effluent and reduces the volume of the bioreactor.

Since the filtrate cannot pass the membranes, it is virtually free of suspended solids and bacteria and ready for reuse or for further treatment by reverse osmosis.

Membrane bioreactor concepts

Membrane bio reactors can either be placed externally, i.e. in an external loop to the bioreactor) or they can be submerged in the activated sludge, i.e. in the bioreactor itself.

Both membrane bioreactor concepts have their own advantages and they have their own range of application.