Products & Services

RPI Antiscalants

RPI Antiscalants

ROPUR RPI® Antiscalants are friendly solutions designed to operate safely reverse osmosis systems at maximum efficiency.

Find out more


RPI Calculator

RPI Calculator

Your key partner to dose only what is needed.
Find out more

Open calculator


Knowledge Base

Knowledge Base

Because knowledge is the best way to make the right choice.

Find out more


News

Toray Water Treatment Offices

Protect Your Reverse Osmosis Membranes with Our Advanced Antiscalants Scale and mineral fouling can scratch and damage the active polyamide […]

Solution-Diffusion model for water transport in reverse osmosis- What went wrong?

The pore-flow model, supported by the solution-friction model, more accurately describes the dynamics of water transport in RO membranes. This model acknowledges the role of …

Silicate Scaling Prevention

Silicate scaling, including calcium silicate and silicic acid scaling, is a significant challenge in reverse osmosis (RO) water treatment processes. This type of scaling occurs when silicate ions in the water precipitate and form deposits on the RO membranes…


About

Toray Membrane Europe AG, a company of Toray Industries Japan, is the successor company of ROPUR AG, an engineering firm established in Switzerland in 1983 who pioneered the development of the Antiscaling Chemicals in the Reverse Osmosis field.

Under the ROPUR brand name, TMEU AG innovates, manufactures and supplies high-quality scaling inhibitors for water treatment using RO and NF membrane technology.