UV Transmittance Improvement

Membranes are employed to selectively remove dissolved species from wastewater to improve the UV transmittance of the treated wastewater



Nanofiltration (NF) membranes have good selectivity for removal of naturally occurring organic compounds as well as iron. Organic material can be found in groundwater sources which have surface water intrusion, or groundwater sources which are influenced by decomposing vegetative materials. The contamination of these waters is sometimes measured in terms of color units.


Treated water from landfill leachate is a source of color and humic and fulvic acids in wastewater. When this wastewater is discharged to a municipal treatment plant (POTW), color and the presence of certain organic acids affect the performance of the final ultraviolet treatment step, causing the receiving facility to require that these components be reduced or eliminated.


Dynatec has developed a number of options together with NF for color and organic acid removal. Since each project requires different levels of removal and has different treatment requirements, treatability work is typically carried out to establish the required treatment process steps.


The Dynatec Difference

Nanofiltration systems are typically used for:

  • Color removal from water and wastewater sources including removal of disinfection pre-cursors
  • Retention of humic and fulvic acids in landfill leachate to improve UV transmissivity
  • Removal of tar compounds in petroleum industry
  • TDS Reduction
  • Water softening
  • TDS improvement


Information Sheets

Membrane Technology for UV Transmittance Improvement.pdf
Membrane Technology for UV Transmittance Improvement
pdf (585.66kb)