Tokyo Environmental Public Service Corporation 3Rs and Waste Management in TOKYO

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  • Incineration of combustible waste
  • Waste incineration facilities
  • Incinerator Type
  • Major equipment(for grate-type incinerators)
  • Exhaust Control
  • Environmental measures to counter exhaust and wastewater emissions
  • Environmental Measurement
  • Mechanism of Power Generation and Heat Supply
  • Ash recycling
  • Eco-cement
  • Ash melting
  • Other recycling
  • Recycling of waste electrical and electronic equipment
  • Processing of food waste into biogas

Major equipment (for grate-type incinerators)

1 Refuse truck scale

Measures the weight of the waste

2 Platform

Waste collection trucks dump waste into the bunker.

3 Refuse Bunker

Waste is temporarily stored here until incineration.

4 Refuse Crane

Waste is churned, leveled and sent to the incinerator.

5 Forced Draft Fan

Sends air in the refuse bunker into the furnace.

6 Incinerator

Burns waste at a high temperature of over 800 degrees Celsius.

7 Boiler

Produces steam from heat generated when waste is burned, to be used for supplying heat and generating electric power.

8 Cooling Tower

Cools high-temperature exhaust emitted from the incinerator to prevent the re-composition of dioxins.

9 Bag filter

Removes soot and dust from the exhaust. Also removes dioxins, sulfur oxides, hydrogen chlorides and mercury.

10 Gas scrubber

Removes hydrogen chlorides, sulfur oxides and mercury from the exhaust.

11 Catalyst Reaction Tower

Decomposes nitrogen oxides in exhaust using catalysts.

12 Induced Draft Fan

Sends the exhaust to the stack.

13 Stack

Exhaust that is free of toxic substances and odors is released into the air.

14 Wastewater Treatment Facilities

Solids and heavy metals in wastewater produced from the plant are removed to a regulation value or below and released into the sewer.

15 Central Control Room

Central Control Room monitors and operates facilities such as refuse bunkers and incinerators within an incineration plant. Every facility sends information continuously via supercomputers, which is displayed on a monitor for the control room to monitor operation of the entire plant.
Incineration plants operate 24 hours, day and night excluding times for periodic inspections.

Figure of Major facilities of an incineration plat (stoker furnace waste incinerator)

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