In recent years, there has been increasing global awareness of “water risks” such as water shortages and localized heavy rain as a factor that can greatly affect business due to increasing population and global warming, etc.
The Meiden Group conducts evaluation of water risk for initiatives to conserve water and comply with effluent standards. Using the free water risk evaluation tool, Water Risk Filter, provided by the World Wide Fund for Nature, we conducted evaluations for 13 production sites in 8 countries, and although many sites were assessed low risk, some sites in India and China were considered to be located in comparatively high-risk areas, and we found that risks relating to securing volume and quality of water were particularly high.
These sites do not use large quantities of water for production so there is no great concern at this time; however, based on the results of the evaluation, the Meiden Group takes the optimal countermeasures for each site based on the water risk assessment results.
Water Risk Assessment Results for Regions Where Production Bases are Located
Above-ground water supply pipes
We are concerned about the possibility of water leaks from buried water supply pipes on factory grounds as our facilities age. We are systematically updating pipes and placing more pipes above ground for easy maintenance and inspections.
Trends in Water Usage Volume (Japan)
*Water usage volume includes tap water, water for industrial use, and ground water.
Trends in Effluent by Discharge Location (Japan)
*Only total values are available for FY2014 and FY2015.
In addition to design, construction, and execution of water treatment plants, the Meiden Group provides total support through to operation and maintenance as a general water treatment manufacturer, based on our record of involvement with construction and development of water and sewerage systems in Japan. We are contributing to the solution of a range of issues relating to the conservation of water resources through or water infrastructure systems business, which is one of our core businesses.
In October 2018, Meidensha received an order from Siemens for ceramic flatsheet membrane for effluent treatment at petrochemical plants in China. This was the first product order since the decision was made to adopt Meidensha’s ceramic flatsheet membrane for the Siemens PACT® MBR (powdered activated carbon treatment membrane bioreactor) system in December 2016.
The ceramic flatsheet membrane employed by the PACT® MBR system are filters used to purify sewerage and effluent. The PACT® MBR system is a new, extremely compact effluent treatment system that combines activated charcoal, biological treatment, and membrane filtration. The reason for adopting ceramic flatsheet membrane is that they are more long-lived and hardwearing compared to the organic membranes that had been used in previous systems.
Siemens’ PACT® technology has a history spanning 40 years and has been installed at over 100 locations. Adopting ceramic flatsheet membrane for this new technology that combines PACT® with MBR is a testament to their long life and reliability.
The PACT® MBR for which ceramic flatsheet membrane will be delivered on this occasion belongs to Tianjin Bohua Chemical Development Co., Ltd. which is a Chinese petrochemical manufacturer, and it will be used to treat effluent from production processes.
The water treatment business, which uses ceramic flatsheet membrane will contribute to the solution of issues such as those posed by Goal 6, “ensure access to water and sanitation for all,” and Goal 14 “conserve and sustainably use the oceans, seas and marine resources” of the UN Sustainable Development Goals (SDGs). Meidensha will continue to pursue manufacturing that contributes to society, achieve sustainable value creation and work towards the solution of social issues, including those posed by the SDGs.
*PACT is a registered trademark of Siemens.