Membrane technology

MBR – Membrane Bioreactor:

Limited space, increasingly stringent requirements for effluent quality, and corporate sustainability goals all favor the use of membrane bioreactors (MBR) in wastewater treatment. This technology offers significant advantages—particularly when it comes to the reuse of treated wastewater for applications such as irrigation systems or industrial processes—and contributes to the conservation of natural water resources.

The MBR process combines biological wastewater treatment with membrane filtration. Biologically treated wastewater is passed through specialized membranes, which separate out solids and suspended matter. Depending on the membrane technology employed, even the finest particles and microorganisms can be reliably removed. For more demanding water quality requirements, downstream processes such as nanofiltration or reverse osmosis can be integrated to further reduce dissolved substances and salts.

A key advantage of the membrane bioreactor is that it operates with significantly higher activated sludge concentrations than conventional activated sludge processes. This increases biological treatment capacity while simultaneously reducing the required tank volume and overall footprint. Consequently, MBR systems are an especially attractive option for industrial sites where space is limited.

CUSS GmbH develops customized MBR solutions for companies that require the highest standards of effluent quality combined with compact, efficient plant technology.

Whether for compliance with stringent discharge limits or for advanced water reuse, we offer tailored solutions for sustainable wastewater treatment.

 

Nanofiltration:

Nanofiltration is a membrane-based process for advanced wastewater treatment that removes extremely fine particles, multivalent ions, and specific dissolved organic compounds. It is particularly effective for reducing hardness-forming substances and selected dissolved constituents.

When used as a downstream purification stage following a membrane bioreactor, nanofiltration further enhances effluent quality, creating the conditions necessary for reusing treated wastewater in industrial processes.

 

Reverse Osmosis:

Reverse osmosis enables a highly advanced level of treatment for wastewater that has already undergone initial purification. Using semipermeable membranes, it removes not only the finest particles but also the vast majority of dissolved salts, ions, and other dissolved substances.

This process is especially well-suited for applications with demanding water quality requirements—for instance, in the reuse of process water or the supply of water for sophisticated industrial applications. When combined with appropriate pretreatment, reverse osmosis can achieve a very high degree of water purity, thereby helping to conserve natural water resources.