Mitsubishi wins contract to rebuild waste-to-energy plant in Yokohama

Mitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd. (MHIEC) has received an order from Yokohama City, Japan, to rebuild the Hodogaya Plant waste-to-energy facility.

The contract, which was awarded through a tender process, includes dismantling and removal of the currently closed Hodogaya Plant and construction of a new facility with handover scheduled for March 2031.

The new waste-to-energy facility will comprise three stoker incinerators, each with disposal capacity of 350 tonnes per day, providing a total capacity of 1,050 tonnes per day.

Have you read?
Doosan Škoda Power to supply steam turbine to waste-to-energy plant in US
Carbon capture planned for German waste-to-energy plant

The stokers to be used are V-type stoker waste incinerators developed by MHIEC to optimise the drying and combustion process. The plant will also use heat energy produced during the incineration process to generate power efficiently.

According to MHIEC, the V-type stokers have an optimised stoker structure and incinerator shape with the surface of the stoker directed at the center of the flame during drying, combustion and post-combustion.

The main benefit of this design is the ability to efficiently make use of radiant heat as the waste is combusted, helping to burn and reduce the volume of waste in a more stable manner, and reducing the proportion of unburned combustibles in the post-combustion ash (unburned waste), contributing to a lower environmental load.

Also of interest Interview: The Good Guys – Waste to Energy explained

MHIEC succeeded Mitsubishi Heavy Industries (MHI's) environmental protection business in 2008, taking over its technological development capabilities in environmental protection systems and expertise in the construction, operation and maintenance of waste management facilities.