Energy and the Environment Energy Sources: Renewables Waste to Energy

Lesson 4, Topic 10

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Waste to Energy

Abdulaziz July 15, 2020

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Incinerator for municipal waste

Waste to Landfill

landfilled waste suitable as a fuel
- plastics
- paper and cardboard
- wood
- textiles
calorific value of ‘fuel’ in waste ~ 63 PJ/year
- could genrate13GJ / year of electricity
- assuming 20% efficiency
Australia’s electricity consumption in 2014-15
- 700 TJ
- 13 GJ = 2% of annual demand
- Hazelwood supplies 5.4% of national demand

Waste Incineration Plant Aerial

Current Emission Reduction Fund Methods

Do not cover energy from burning waste
ERF Methods available for Waste include
- Destruction of Landfill gas
- Source Separated Organic Waste
- Waste Water Treatment
- Alternative Waste Treatment
  - Composting organic waste (avoiding anaerobic generation of methane)
  - Anaerobic digestion where biogas is captured for heat or electricity generation
  - Organic matter processed into a solid fuel alternative

Gaseous air pollution

Maryvale Mill – Energy from Waste plant

Feasibility Study completed in 2018

Waste to Energy Kwinana WA

Phoenix Energy Incineration plant

Rules govern what can be combusted. No:
- medical waste
- radioactive waste
- asbestos
- contaminated soils
- tyres
- animal carcasses
- corrosive or toxic
- liquids or gases

Kawasaki Heavy Industries

Flow diagram for the Hofu Municipal Clean Center’s biogas generation and waste incineration facilities (image courtesy Kawasaki Heavy Industries).