Company History

企業沿革

Sumitomo Heavy Industries Environment Co., Ltd.

Sumiju Environmental Engineering, Inc.

1961
Sumitomo Heavy Industries, Ltd., launches sewage treatment business and installs sedimentation basin equipment in Tokyo.
1966
Concludes technical cooperation agreement for sludge scrapers with Link-Belt in the United States.
1969
Sumitomo Heavy Industries establishes Environmental Sanitation Laboratory.
1971
Merges with ETV in the United States to establish Sumitomo Jukikai Envirotech Inc. (wastewater treatment equipment for industries ).
1978
Izumi Environmental Management Co., Ltd., established; begins operations and maintenance business.
First sewage treatment facility operations management project established in Tokyo.
First human-waste treatment facility operations management project established in Ibaraki.
First CP facility operations management project established in Kanagawa.
1979
First leachate treatment facility management project established in Chiba.
Company renamed to Izumi Environmental Engineering Co., Ltd.
1981
Concludes technical cooperation agreement for the SUMIRATOR OD system with ESMIL in the Netherlands.
1983
Launches sales of SUMICUTTER (residue crusher).
Launches sales of industrial chemicals.
1986
Receives order for a large-scale sewage treatment system in Seoul, Korea.
Delivers equipment to the Sungai Semenyih Water Treatment Plant in Selangor, Malaysia.
1987
Company renamed from Izumi Environmental Engineering Co., Ltd., to Sumiju Environmental Engineering, Inc.
1989
Develops SUMI-THICKENER super high-rate coagulation equipment.
Introduces UASB anaerobic wastewater treatment technology from the Netherlands.
1991
First & second garbage incineration facility operations management projects established in Ibaraki and Osaka.
1991
Sumitomo Heavy Industries, Ltd., merges with Sumitomo Jukikai Envirotech Inc.
1992
Sumiju Environmental Analysis Center Co., Ltd., established in Hiratsuka, Kanagawa
1993
SHI Airport System Co., Ltd., established to manage operations and maintenance of the wastewater treatment facility on Kansai International Airport Island (Kansai International Airport opens in April 1994.)
1993
Sumiju Environmental Analysis Center Co., Ltd., registered as measurement certification company (Concentration).
1995
Introduces EGSB anaerobic wastewater treatment technology from the Netherlands.
1996
Cumulative number of SUMICUTTER delivered reaches 500 units.
1999
Subcontracted for special dioxins prevention project (subsidy) at garbage incineration facilities in Nara.
2002
Cumulative number of SUMICUTTER delivered reaches 1,000 units .
O&M Promotion Department inaugurated (all-inclusive service subcontract: total maintenance systematization).
Super Water Co., Ltd., established as water supply utility company.
2002
Develops cascade-type sludge scraper.
Releases an integral anaerobic wastewater treatment unit.
Sumiju Environmental Analysis Center Co., Ltd., moves from Hiratsuka to Yokosuka.
2003
First long-term all-inclusive operations management subcontract agreement for sewage treatment facility established in Toyama.
First long-term all-inclusive operations management subcontract agreement for human waste treatment facility established in Aichi.
First water purification facility operations management project established in Fukushima.
First fee collection agency service for a water purification facility established in Yamaguchi.
2003
Releases SUMIRATOR UD SYSTEM ,an aeration equipment for oxidation ditch
2004
Exports begin of SUMICUTTER to China.
2004
Releases SMT-U, an integrated SUMI-THICKENER.
2005
Licenses SUMI-THICKENER technology to Kvaerner Pulping AB.
2006
Cumulative number of SUMIRATOR OD system delivered reaches 1,000 units .
Delivers first AquaSAT low-concentration anaerobic treatment equipment to Asahi Breweries' Ibaraki Factory.
2007
Spun off from Sumitomo Heavy Industries, Ltd., to become Sumitomo Heavy Industries Environment Co., Ltd.
2008
Sumitomo Heavy Industries Environment Co., Ltd., merges with Sumiju Environmental Analysis Center, Co., Ltd.
2009
First long-term all-inclusive operations management subcontract project for garbage incineration facility established in Osaka.
2011
First long-term designated administrator service contract for human waste treatment facility established in Oita.
2012
Launches sales of Smart Flow System for water pipe automatic discharge management.
2014
SUMIJETTER receives Japan Machinery Federation Chairman's Award.
2015
Subcontracted for advanced equipment installation project (grant) for garbage incineration facility in Ehime.
Subcontracted for core equipment modification project (grant) for human waste treatment facility in Gunma.
2016
Launches sales of Chelate Checker, a simple device for chelate dosage management.
2017
Sumitomo Heavy Industries Environment Co., Ltd., merges with Sumiju Environmental Engineering, Inc.