The company

Established in 2013, Thermal Purification Technologies Limited (TPTec) is a clean-tech start-up focusing on developing new, clean and efficient technologies for multiple applications in the water sector.

The company is focused on providing complete solutions for cleaning seawater, brine and polluted water including separation of water and solids. In its technologies, TPTec uses advanced thermodynamics to build simple, robust and efficient plants that can use existing waste or low value streams to purify challenging feeds with a minimum of residual effluents.


TPTec’s technology portfolio includes LTDis® (Low Temperature Distillation) and LTDry® (Low Temperature Drying) in cooperation with LTDry AG. Both technologies have been developed to full scale plants and are now available for commercialization:

Business Model

The business model for TPTec is to remain a technology developer forming strategic partnerships with competent systems integrators/industrial partners/investors covering specific geographies and or applications.


In 2014, Dubai-based Metito formed a strategic partnership.
Since 2016, TPTec has a strategic partnership with Crystal Clearwater Resources in Frisco TX, in order to introduce the technologies in the markets of the USA, Canada and South America.


Headquartered in Guernsey, Great Britain, TPTec has an operating subsidiary in Switzerland where a focused team continues developing, refining and implementing technologies for multiple applications in the water sector.


TPTec was awarded with a Distinction at 2015’s Global Water Awards for its thermal Zero Liquid Discharge technology. In January 2019 the Global Energy Magazine honored TPTec's innovative LTDis technology to achieve Zero Liquid Discharge (ZLD). And in July 2019 Crystal Clearwater Resources received the Chevron Technology Venture Award Technology Pioneer with the LTDis Technology.

Our partners

Simple, Robust & Efficient Water Purification Solutions

Metito is the leader and provider for total intelligent water management solutions in the emerging markets.
LTDry AG is our cooperation partner for the Low Temperature Drying technology.

Your contacts at Thermal Purification Technologies GmbH

Mark Lehmann
CTO, Member of the Board of Directors
+41 62 544 93 80
Jutta Römmelt
Marketing and Project Manager
+41 62 544 93 82
Jan Lukas Lehmann
Operations Manager
+41 62 544 93 81
Rebekka Merz
Head of System Integration
+41 62 544 93 80
Johannes Wellmann
Doktor of Engineering
+49 177 786 97 62
thermal purification technologies