Top Page | English | 简体中文 | 繁體中文 | 한국어 | 日本語
Monday, 23 March 2015, 13:00 HKT/SGT

Source: Mitsubishi Heavy Industries, Ltd.
MHI-MS Receives Order for 'Two-phase Activated Sludge System' Advanced Wastewater Treatment Technology
- Largest Treatment Capacity to Date, Enabling up to 100% Increase in Treatment Capacity and 80% Reduction in Excess Sludge Volume -

TOKYO, Mar 23, 2015 - (JCN Newswire) - Mitsubishi Heavy Industries Mechatronics Systems, Ltd. (MHI-MS), a group company of Mitsubishi Heavy Industries, Ltd. (MHI), has received an order for wastewater treatment facilities employing its proprietary "two-phase activated sludge system," an advanced wastewater treatment technology, for installation at Mitsubishi Chemical Corporation's Yokkaichi Plant in Mie Prefecture.

MHI Mechatronics Systems

Compared to conventional technologies, MHI-MS's two-phase activated sludge system achieves up to twice the wastewater treatment capacity by dividing the biological treatment tank (aeration tank) - where organics in wastewater are decomposed by microorganisms - into two parts, a configuration that enables an 80% reduction in excess sludge produced from the wastewater treatment process. The system ordered by Mitsubishi Chemical offers an unprecedented wastewater treatment capacity of up to 9,000m3/day, vis-a-vis 7,500m3 with conventional systems. Delivery of the system is scheduled for the first half of 2017.

The order for the two-phase activated sludge system was received via Mitsubishi Chemical Engineering Corporation (MEC), a group company of Mitsubishi Chemical Holdings Corporation. The new system will be installed in conjunction with renovation of the Yokkaichi Plant's superannuated wastewater treatment system. In addition to providing increased treatment capacity within the plant's existing space limitations, the new system is expected to contribute significantly to sludge reduction.

In the conventional activated sludge process incorporating a single aeration tank, bacteria (suspended bacteria) that decompose and assimilate organics contained in wastewater share the tank with animalcules (protists and small metazoa) that feed on this bacteria. In MHI-MS's two-phase activated sludge system, the aeration tank is divided into two parts and the wastewater is treated progressively. As the speed of treatment within the first (carrier) tank containing the bacteria is considerably faster than that in the second (activated sludge) tank that contains the animalcules that feed on the bacteria, the two-tank configuration not only enables maximized biodegradation and treatment capacity for both bacteria and animalcules; the scale of equipment can also be optimized according to the two tanks' treatment capacities, enabling savings in installation space.

The latest order is the second received for the system to be installed at Mitsubishi Chemical. In 2012 MHI-MS received an initial order for a wastewater treatment system with a maximum capacity of 3,600m3/day (vs. 2,830m3/day with conventional systems) for installation at the company's Kurosaki Plant in Fukuoka Prefecture. That system, which responded to refurbishing needs by increasing treatment capacity while combining two existing wastewater treatment facilities into one without shutting down production, was delivered in May 2013. The new order was placed in response to the solid operating track record of the initial system at the Kurosaki Plant.

MHI-MS developed the two-phase activated sludge system in 2009, and to date the company has received substantial orders from clients including the major chemicals firms, Mitsubishi Chemical among them, and food production plants. Going forward the company will continue to provide finely tuned responses to a diverse range of user needs in the organic wastewater treatment markets of Japan and nations worldwide, with systems for increasing the capacity of existing facilities, new installations for use within limited space parameters, and systems for reducing excess sludge production volumes.

About Mitsubishi Heavy Industries, Ltd.

Mitsubishi Heavy Industries (MHI) Group is one of the world's leading industrial firms. For more than 130 years, we have channeled big thinking into solutions that move the world forward - advancing the lives of everyone who shares our planet. We deliver innovative and integrated solutions across a wide range of industries, covering land, sea, sky and even space. MHI Group employs 80,000 people across 400 locations, operating in three business domains: "Power Systems," "Industry & Infrastructure," "Aircraft, Defense & Space." We have a consolidated revenue of around 40 billion U.S. Dollars. We aim to contribute to environmental sustainability while achieving global growth, using our leading-edge technologies. By bringing people and ideas together as one, we continue to pave the way to a future of shared success.

For more information, please visit MHI's website:
For Technology, Trends and Tangents, visit MHI's new online media SPECTRA:

Mitsubishi Heavy Industries
Hideo Ikuno
[email protected]

Mar 23, 2015 13:00 HKT/SGT
Source: Mitsubishi Heavy Industries, Ltd.

Topic: Press release summary
Sectors: Water
From the Asia Corporate News Network

Copyright © 2020 ACN Newswire. All rights reserved. A division of Asia Corporate News Network.

Mitsubishi Heavy Industries, Ltd. Links

Mitsubishi Heavy Industries, Ltd.
Sept 14, 2020 16:10 HKT/SGT
MHI Thermal Systems' Air Conditioners for the Australian and New Zealand Markets Receive Canstar Blue Award for Second Straight Year
Sept 4, 2020 10:36 HKT/SGT
Mitsubishi Shipbuilding Marine SOx Scrubber System "DIA-SOx" Installation Completed Onboard 22 Ships Year-to-Date
Sept 4, 2020 10:20 HKT/SGT
Launch of New Hydrogen Utilization Council in Kobe/Kansai Area
Sept 1, 2020 10:12 HKT/SGT
Mitsubishi Power Established with Renewed Commitment to Transforming Energy Systems Around the World
Aug 31, 2020 10:51 HKT/SGT
Mitsubishi Shipbuilding to Test World's First Marine-based CO2 Capture System
Aug 31, 2020 10:38 HKT/SGT
MHI Machine Tool Expanding Lineup of Double-Column Machining Centers
Aug 4, 2020 11:10 HKT/SGT
MHI Machine Tool Develops "FR Series" of Machines to Manufacture Gears for Robots
July 31, 2020 08:06 HKT/SGT
Mitsubishi Heavy Industries and Copenhagen Infrastructure Partners Enter into Joint Venture to Develop Offshore Wind in Hokkaido, Japan
July 27, 2020 10:08 HKT/SGT
MHIEC Receives Order to Refurbish the Minato WtE Plant in Tokyo
July 20, 2020 10:21 HKT/SGT
MHI Successfully Launches the Emirates Mars Mission, HOPE Spacecraft
More news >>
 News Alerts
Copyright © 2020 ACN Newswire - Asia Corporate News Network
Home | About us | Services | Partners | Events | Login | Contact us | Privacy Policy | Terms of Use | RSS
US: +1 800 291 0906 | Beijing: +86 400 879 3881 | Hong Kong: +852 2217 2912 | Singapore: +65 6304 8926 | Tokyo: +81 3 6859 8575

Connect With us: