GWT Gold Sponsor at the ICWS2022


icws22 lyon





Naturally Wallace Consulting

Naturally Wallace Consulting is a world leader in the treatment of unique and complex wastewater effluent. Having taken more than 250 of the most advanced wetland systems around the world from concept through construction to operations, NWC provides solutions for water treatment challenges ranging from oil-field produced waters and groundwater remediation systems, to treating airport de-icing runoff, mine discharge waters and food processing wastewaters.

With constructed wetlands and patented Forced-Bed Aeration™ technology at the core, the firm pushes the boundaries of ecological engineering to design long-term solutions for the most complex wastewater challenges.

Areas of specific expertise:

  • Airport de-icing systems
  • Oil and gas industry effluents
  • Mine water drainage

Scott 2020

The GWT contact for NWC is its President, Scott Wallace. Scott is a water expert and a registered professional engineer in 22 US states. He has created 4 US and 1 Canadian patent for water treatment technologies and has pursued a global business model working in 17 countries to date ranging from highly developed regions in Europe and the Middle East, to remote areas in Sub-Saharan Africa where electrical power is unavailable.

Scott has written the two leading textbooks on wetland treatment design; Treatment Wetlands, Second Edition (with R. Kadlec), which is widely used in graduate university programs around the world, and Small-Scale Constructed Wetland Wastewater Treatment Systems (with R. Knight), which has been used by UNESCO as a training manual for environmental scientists and engineers. He is considered a world expert in wetland treatment design and works closely with university research programs in the US, Canada, the UK, France, Germany, Denmark and China.

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Naturally Wallace Consulting LLC

PO Box 37


Mn 55082


+1 612 802 2329






GWT events @ ICWS2022




7/11  9am  Anacleto Rizzo   (Keynote)

Wetland community expertise in the new Nature-Based Solution and Circular Economy vision: links and new research and design trends


7/11  10.40am  Dion van Oirschot

MULTISOURCE: Aerated wetland treating black and grey water for reuse at campsite Belgium


07/11   11:40am  Heike Hoffman

The potential of the French Wetland System for reuse - Results of a long-term project in the Peruvian arid coast area


7/11  4pm Heike Hoffman

Operational experiences with a sludge treatment wetland as part of a municipal WWTP in Brazil


7/11  4.30pm Fabio Masi

Water Projects Europe: NICE / MULTISOURCE


9/11  2pm Steen Nielsen

Treatment of industrial sludge in a pilot Sludge Treatment Wetland planted with Phragmites australis and Schenoplectus californicus


9/11  2pm Riccardo Bresciani

Reed beds for drying sludge from a winery wastewater treatment plant in Spain: the WETWINE project


9/11   4.40pm  Taxiarchis Seintos

Application of a full-scale UASB and two-stage constructed wetland system for water reclamation and nutrient recycling of domestic wastewater in arid areas


9/11  5pm Simos Malamis

Investigation of the use of different filling materials in unsaturated vertical flow constructed wetlands for the treatment of UASB effluent from domestic wastewater

T. Seintos, E. Statiris, F. Masi, C. Noutsopoulos, S. Malamis


9/11 5pm Scott Wallace

Practical aspects in the determination of first-order removal rate coefficients (k) for horizontal flow treatment wetlands


10/11 11.20am Fabio Masi

Electroactive and intensified pilot-scale constructed wetlands for the treatment of high loads of septic tank effluent


10/11 2.20pm Alain Petitjean

Intensified French Treatment Wetlands - Influence of operating parameters on nitrogen removal


10/11 4pm  Andy Freeman

Treatment of de-icer contaminated runoff at a UK airport using intensified Nature Based Solutions - A 10-year operational performance review



P4: Coupling French Reed Bed and Short Rotation Plantation for developing circular economy of wastewater in India: A case of PAVITR prototype / Anacleto Rizzo

P39: Constructed wetlands for the treatment of combined sewer overflow upstream of centralised wastewater treatment plants / Chiara Sarti