Chromafora Technologies SELPAXT and SELMEXT

Our technologies remove PFAS and heavy metals

Chromafora is an innovative Swedish cleantech company that has two unique water treatment technologies: the patent-pending SELPAXT technology and the patented SELMEXT method.

Both technologies are used to remove dissolved heavy metals and PFAS from water and reduce the amount of secondary waste by means of selective separation.

The SELMEXT method also reduces the need for virgin extraction of several critical raw materials, as gold and other valuable metals can be extracted from waste streams and made available for reuse.

SELPAXT removes more than 90% of PFAS from water

Chromafora’s patent-pending SELPAXT technology for PFAS removal is based on a chemical innovation combined with membrane technology using ultrafiltration, where pollutants are selectively targeted and filtered out from the water. Read more on selpaxt.com

SELPAXT has demonstrated much higher reduction rates on more PFAS variants than other PFAS removal technologies on the market, capturing more than 90% of PFAS chains, both long and, otherwise hard to capture, short-chain PFAS. Compared with other, conventional methods such as activated carbon or ion exchange, The SELPAXT method is also more cost-effective and generates minimal waste; only 0.1% of the treated water volume.

Simplified SELPAXT process description:

SELPAXT benefits

Effective removal of short PFAS

Unique capability to reduce both long and short PFAS. Sustainable reduction typically more than 90%.

Low energy consumption

Low-pressure technology using ultrafiltration. Power required for system typically less than 1 kWh per cubic meter.

Low residual waste ratio

1,000 times concentration of PFAS waste in relation to treated volume means a PFAS waste ratio of 0.1%.

Low overall TOC sensitivity

The effect of the SELPAXT chemistry is not sensitive to overall TOC levels even though individual substances need monitoring.

SELMEXT – selective removal of heavy metals from wastewater

The patented SELMEXT technology is selective for the metals/substances to be removed. This enables both an effective treatment to low residual levels and a minimal amount of waste. Leaving behind a high quality, particle free, water stream.

Solving the problems for industries

General metal separation or removal of toxic pollutants: To separate arsenic at the same time as removing positive metals is very difficult – but possible with SELMEXT.
Mining – Selective separation of Antimony (Sb): Single-metal separation. Only Antimony is subject to removal. Antimony is almost completely eliminated from the acid mine drainage.
Flue-gas condensate treatment in CHP plant: Using SELMEXT for robust removal of unwanted metals from condensate water. Treating 2,5 m³/h enabling re-use of permeate as process water.

Simplified SELMEXT process description:

SELMEXT benefits

Selective heavy metal separation

The process can be adapted to the unique water matrix and the target metal to be removed.

Reduced chemical consumption by 80%

Compared with conventional technologies.

Cost efficient

Standard water treatment equipment, small footprint, scalable, decreased need for transporting goods and material.

No hazardous chemicals used

SELMEXT chemicals are REACH registered.

Advanced selective
water treatment

Our technologies remove PFAS and heavy metals

SELPAXT removes more than 90% of PFAS from water