3rd Canadian Nuclear Waste Management Decommissioning and Environmental Restoration - 2016 Sept. 11-14

Presented at:
3rd Canadian Nuclear Waste Management Decommissioning and Environmental Restoration
2016 Sept. 11-14
Ottawa, Canada
Session Title:
Session M5: Operations Experience

C. Lam (Ontario Power Generation)


The radioactive waste incinerator which processes low level waste at Ontario Power Generation has been in operation since 2002. The purpose of the incinerator is to safely process both solid and liquid low level waste generated by station activities. The majority of waste incinerated consists of paper, wood, plastic, rubber, cotton, and hydraulic oil.

The incinerator has undergone a recent modification in 2015 in response to an overheating event in the underfire air duct which resulted in suspension of solid waste incineration. Underfire air duct plugging is a common issue occurring in many incinerators worldwide. This leads to a reduction in combustion efficiency as well as additional maintenance burdens and processing downtime. Thermal damage due to overheating can also occur if flammable material flows through the underfire air duct and burns.

The modification was completed safely and successfully by OPG in conjunction with industry partners. The modification has resulted in the return to solid waste incineration as well as improved sustainable performance. The incinerator has now evolved from a controlled air design consisting of both underfire and overfire air to a controlled air design consisting of only overfire air.

The paper will address lessons learned during the modification. The paper will also explore key differences between the operation of the original incinerator design and the new design.

Individual Conference-Paper Copies (Electronic Where Available):

  • For CNS members, the first 5 copies per calendar year are free, and additional copies are $10 each.
  • For non-members, the price is $25 for the first Conference-paper copy in a request, and $10 each for additional copies of papers in the same conference and in the same request.
  • Contact the CNS office to order reprints.