The Oji Group has been promoting the expansion of water environment businesses in Japan and overseas by integrating and installing the wastewater treatment technology it has accumulated through the evolution of its papermaking technology and meeting the demands of the times.
Applied Development of Integrated Water Treatment Technology
By taking advantage of the water production and wastewater treatment know-how that we have accumulated through papermaking technology cultivated over many years, and combining these to meet various needs, we can provide general infrastructure*1 management suited to any water environment.
*1: Water supply and sewerage, various kinds of factory effluents, industrial process wastewater, animal husbandry wastewater, water treatment for agriculture, etc.
1) Investigation and Proposal—Investigating from Various Angles to Clarify Causes and Solutions—
The Pulp and Paper Innovation Center has water treatment specialists on staff and has the technology and equipment on hand for conducting proper on-site investigations, water quality analysis, and lab testing.
We diagnose water treatment facilities by carrying out simplified water quality analyses using various measuring instruments. *2
Investigation and equipment proposal for a water treatment facility
by the water treatment specialists on staff (recommendation scene)
On-site investigation and water quality analysis
(on-site investigation scene)
*2: pH meter, EC meter, DO meter, ORP meter, etc.
Water Quality Analysis
Clarifying issues and their causes through water quality analysis using advanced analytical devices*3 and equipment for analyzing various indicators and components. *4
An analytical instrument
Jar testing (a method for testing coagulating sedimentation)
A UF membrane test machine
*3: BOD, COD, TOC, ions, etc.
*4: ICP, SEM, etc.
Laboratory Testing and Pilot Testing
Jar testers (coagulation and flocculation), flotation testers (dissolved air flotation), membrane treatment test apparatus (MF, UF, RO), biological treatment test equipment (aerobic, anaerobic), etc. Tests are done with various types of laboratory equipment and solutions are found for problems that are present, leading to the creation of measures that are suitable for application at actual facilities.
2) Design and Construction—Building Facilities Based on a Broad Vision and Perspective—
We design the optimum facility for each customer based on the results of an on-site investigation, water quality analysis, lab testing, and other considerations. The use of various pilot test equipment (biological treatment, membrane treatment, etc.) enables a highly precise design.
Staff experienced in the operation and maintenance of water treatment facilities oversee the construction and management of equipment, taking account of maintenance.
Biological treatment equipment
Ultrafiltration treatment equipment
3) Management and Maintenance
We improve performance and solve problems by selecting and proposing the optimum water treatment chemicals based on our long history of research into changes in water quality caused by manufacturing processes and environment.
Oji has been developing products and technologies for maintenance to deal with every kind of water infrastructure.
Technology for All Water Infrastructure