SolarSpring GmbH from Freiburg has developed a solution for the recovery of resources based on membrane technology.

With rEvap, ingredients from industrial rinsing solutions can be concentrated to such an extent that they are reusable and can be fed into the industrial process together with the clean water obtained in the process. Energy and material cycles are thus closed and industrial processes are made more sustainable. The rEvap is designed for use in industrial water recycling.

Companies in the metal processing industry, textile and food industry as well as agriculture successfully use our technology and products for wastewater treatment and recycling as well as for the complete recovery of resources.

Water treatment for these industries:

Metallurgical industry

  • Recycling of acids
  • Nickel recovery
  • Treatment of baths from various galvanic applications

Circuit board production

  • Recovery of gold and other rare metals

Polymer industry

  • Concentration of sodium chloride (NaCl) for Chloralkali-Elektrolyse

Food industry

  • Recycling and concentration of salty process waters (vegetables etc.)

The Recovery Evaporators

SolarSpring offers efficient solutions for waste water treatment from industrial production.

A deeper look - MD technology:



The rEvap technology is the perfect solution for small and medium-sized companies that want to close material cycles and minimize disposal costs. The plants are equipped with a plate module. We would be pleased to carry out appropriate preliminary tests for you.

Technical details:

  • For process water / waste water up to 1 m³/h
  • Fully automatic
  • Controlled via Siemens SPS
  • Adaptable according to customer requirements
  • All channel geometries possible
  • Suitable for endurance run


  • ReWaCEM, Resource recovery from industrial waste water by cutting edge membrane technologies, 2020
  • BrineMine: Extraction of valuable substances and drinking water from geothermal sources in Chile
  • Project “RE-Salt” – Recycling of industrial process brines
  • HighCon, The development of innovative, multi-stage and selective processes for the reuse of industrial wastewater, 2019.
  • Printed Circuit Board / AT&S – Fehring, Austria

All references >

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