WASTE TO BE PROCESSED
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The PTE technology can process any type of waste that has a calorific value:

  • Hydrocarbons such as oil;
  • Complex sugars such as vegetable waste;
  • Organic chemicals such as animal fat.

Specific types of waste that can be processed include:

  • Municipal solid waste (“MSW”): discarded food, bottles, cans, paper, fabric, hygiene products, plastic packaging and other household trash.
  • Commercial & industrial waste.
  • Construction & demolition debris such as old wooden doors and window frames, timber framing, wooden forms for concrete, waste wood products such as MDF, particleboard, Formica, etc.
  • Hospital waste: blood, human tissue, used wound dressings, contaminated disposable instruments.
  • Slaughterhouse waste and veterinary waste: animal tissue, blood, contaminated packaging.
  • Sewage and cesspool waste. Animal manure and slurry.
  • Contaminated oil: used oil from engines, transformers and other machinery, high in hazardous PCBs.
  • Oil sludge: residue in oil storage tanks that cannot be used in refinery.
  • Biomass including household garden waste, forestry waste, agricultural waste and energy crops.
  • Contaminated timber such as old railway sleepers or fencing contaminated with oil, tar or creosote.

Whilst autoclaving of MSW is a relatively new concept, autoclaving itself is a technology that has been practiced for many years and the process is well proven for the treatment of clinical/healthcare waste and for the sterilisation of laboratory/operating theatre equipment. In these cases the main purpose of autoclaving is to sterilise the waste material or equipment so as to destroy pathogens and other biological contaminants. This is quite different to the application of autoclaving for MSW treatment where the principal aim is to condition the material to aid downstream separation into constituent materials (although the sterilisation that occurs also aids this process of separation).

Autoclaving should not be considered as a replacement to source-segregated recycling but viewed as a complementary activity that works in combination with recycling and composting schemes to meet landfill diversion targets.

  1. Proven technology
  2. Accepts a wide variety of waste inputs (No Pre-Sorting)
  3. Maximizes recovery of organic material as sterilised fibre
  4. High recovery rates of premium quality recyclables
  5. Sterility of the recyclables benefits resale/processing
  6. Fibre product can be used as a fuel in pyrolysis plant ( ROCs Benefits)
  7. fibre qualifies as a source of renewable energy
  8. Modular construction allows phased expansion

Waste-to-energy plants supply power 365-days-a-year, 24-hours a day. Waste-to-energy plants generally operate in or near an urban area, easing transmission to the customer. Waste-to-energy power is sold as “base load” electricity. There is a constant need for trash disposal, and an equally constant, steady, and reliable energy generation. Waste-to-energy promotes energy diversity while helping cities meet the challenge of trash disposal.

Waste-to-energy plants may have a significant cost advantage over traditional power options, as the waste-to-energy operator may receive revenue for receiving waste as an alternative to the cost of disposing of waste in a landfill, typically referred to as a “tipping fee” per ton basis, versus having to pay for the cost of fuel, whereas fuel cost can account for as much as 45 percent of the cost to produce electricity in a coal-powered plant, and 75 percent or more of the cost in a natural gas-powered plant.

For more than twenty years, waste-to-energy has been recognized as a source of renewable energy under existing law. Waste-to-energy is a “clean, reliable, renewable source of energy,” according to the U.S. EPA. The Federal Power Act, the Public Utility Regulatory Policies Act, the Federal Energy Regulatory Commission’s regulations, and the Biomass Research and Development Act of 2000 all recognize waste-to-energy power as renewable biomass, as do fifteen states that have enacted electric restructuring laws. EPA estimates 75 of trash contains biomass on a Btu-output basis. Turning garbage into energy makes “important contributions to the overall effort to achieve increased renewable energy use and the many associated positive environmental benefits,” wrote Department of Energy Assistant Secretary for Energy Efficiency and Renewable Energy, David Garman. The EC Landfill Directive is seen as providing the principal legal framework influencing (MSW) management and strategy development for member states.

The directive proposes a strict timetable for reductions in landfill of Biodegradable Municipal Waste (BMW)i.e

  • 2010 ,      BMW going to landfills must be reduced to 75% of the total amount of that      produced in 1995.
  • 2013 ,      BMW reduced to 50% of that produced in 1995
  • 2020 ,      BMW reduced to 35% of that produced in 1995

ROCs is the UK Government’s main policy measure to encourage the development of electricity generation capacity using renewable energy sources in the UK.

There is a requirement for all licensed electricity suppliers in GB to supply a specified and growing proportion of their sales from renewable sources – with the aim of achieving 10% by 2010

Pyrolysis is a ROCs eligible technology.

Government Energy White Paper – May 2007 – “The UK government is to support so-called emerging technologies for renewable power generation by offering them two ROCs per MWh ”. This includes “advanced conversion technologies” like anaerobic digestion, gasification and pyrolysis plants, which can use waste to generate energy.