---
title: SELPAXT FAQ – PFAS Removal Technology & Water Treatment
description: SELPAXT technology by Chromafora AB offers efficient PFAS removal from various water sources, with high removal rates, easy integration, and low maintenance requirements. Explore its benefits and applications now.
---

[SELPAXT Insights – PFAS Removal, Water Treatment & News](https://selpaxt.com/insights)

# [SELPAXT FAQ – PFAS Removal Technology & Water Treatment](https://selpaxt.com/insights/selpaxt-faq)

 Written by [Roger Eriksson](https://selpaxt.com/insights/author/roger-eriksson) | Aug 7, 2024, 7:44:00 AM

SELPAXT FAQ

1. **What is SELPAXT?**  
   SELPAXT is a water treatment technology developed by Chromafora AB for removing PFAS from contaminated water using the SAMF technique.
2. **How does SELPAXT remove PFAS?**  
   It uses a combination of water-soluble active chemicals and ultrafiltration membranes to selectively retain and remove PFAS.
3. **What types of PFAS can SELPAXT remove?**  
   SELPAXT is effective for both short-chain and long-chain PFAS.
4. **What is SAMF?**  
   SAMF stands for Surfactant-Ligand Assisted Membrane Filtration, the technique on which SELPAXT is based.
5. **What makes SELPAXT different from traditional PFAS removal methods?**  
   Unlike traditional adsorption methods, SELPAXT does not rely on surface adsorption and uses a continuous supply of fresh chemicals, ensuring consistent efficacy.
6. **What is the removal efficiency of SELPAXT?**  
   SELPAXT can achieve removal rates between 80% and 99% for most PFAS species. Typically more than 90% for both long and short PFAS chains.
7. **Can SELPAXT handle co-contaminants?**  
   Yes, SELPAXT has low sensitivity to organic matter and salts, making it robust against various co-contaminants.
8. **What are the key benefits of using SELPAXT?**  
   High PFAS removal performance – especially for short PFAS, automatic regeneration, low energy consumption, reduced waste volume, and adaptability to different water matrices.
9. **Is SELPAXT scalable?**  
   Yes, it can be scaled to fit various capacities and can be configured for multi-stage treatment setups.
10. **What types of water streams are suitable for SELPAXT?**  
    Landfill leachates, airport-influenced groundwater, industrial process water, and NF/RO concentrates.
11. **What is the process for implementing SELPAXT?**  
    The process starts with lab-scale tests, followed by on-site demonstrations, and finally full-scale implementation.
12. **What kind of pre-treatment does SELPAXT require?**  
    Basic pre-treatment for suspended solids and, if necessary, aeration to adjust the redox potential.
13. **How is the waste managed in SELPAXT?**  
    The PFAS concentrate is collected in a dedicated tank and can be removed for off-site disposal.
14. **What is the expected lifespan of the SELPAXT membranes?**  
    The membranes have a life expectancy of one to three years, depending on water quality.
15. **How is the SELPAXT system monitored?**  
    Chromafora provides continuous monitoring and performance assessments, including regular water quality reports.
16. **Can SELPAXT be integrated with existing systems?**  
    Yes, SELPAXT can integrate with existing water treatment systems or function as a standalone unit.
17. **What is the typical footprint of a SELPAXT unit?**  
    The standard C10 unit, including support components, has a footprint of approximately 20 by 20 meters.
18. **How does SELPAXT handle system regeneration?**  
    The system performs automatic regeneration by ejecting PFAS concentrate and conducting a clean-in-place procedure.
19. **What are the chemical requirements for SELPAXT?**  
    SELPAXT uses proprietary chemicals developed and supplied by Chromafora, with regular bulk deliveries based on storage capacity.
20. **Who can benefit from SELPAXT technology?**  
    Industries and municipalities dealing with PFAS-contaminated water, including landfills, airports, and industrial sites.

[View full post](https://selpaxt.com/insights/selpaxt-faq)

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