The Landfill and Waste Treatment Interest Group (LaWTIG)

Working together for sound waste management

About us

The Landfill and Waste Treatment Interest Group (L&WTIG) is an independent organisation and a subsidiary of the Institute of Waste Management of Southern Africa (IWMSA). 

Our mission

Our mission is to protect the environment of Southern Africa and its people against the adverse effects of poor waste management.

Our objectives

We’re committed to sound waste management through advocacy and educational activities that:

  • Encourage waste management practices that are both environmentally acceptable and cost effective
  • Promote the science and practice of professional waste management
  • Facilitate information sharing.

Contact us

Western Cape Landfill and Waste Treatment Interest Group 

Chairman: Chris Wiid, , 083 535 6478
Vice-Chairman: Reon Pienaar
Treasurer: Deon Stipp
Committee Members: Richard Emery, Peter Hardie, Paul Roux, Pieter Kriel

KwaZulu-Natal Landfill and Waste Treatment Interest Group (LaWTIG)


Chairman: John Parkin,, 031 263 1119
Vice-Chairman: Graham Payne,, 031 265 1777
Committee Members: Download contact details


Event Presentations

April 2019

"What it takes to build a Landfill:

May 2018

"Diversion of Waste from Landfill" seminar presentations:

April 2017

"Toward the End of Waste: Wise Resource use in Waste Management" Seminar presentations:

September 2014

ISWA Waste to Energy Experience

August 2014

Construction of Engineered Landfill Facilities

Construction of Landfill Facilities

Cylinder testing geomembranes and their protective materials

Geophysical testing of geomembranes used in landfills

Minimum Requirements For Waste Disposal By Landfill

Using geomembranes in landfill engineering

Using Geosynthetic Clay Liners in Landfill Engineering

Using nonwoven protector geotextiles in landfill engineering

Older Presentations