
The items were handed by Piyabut Charuphen, managing director, to Charoen Passara, governor of Metropolitan Waterworks Authority.
This support is one of BIG's CSR initiative, intended to provide the highly purified oxygen gas and ozone generators to MWA for free of charge in the two-month trial period.
The ozone technology for water treatment has been widely used among Western countries due to its proven ability to reduce color and odor problems. In addition, the usage of highly purified oxygen gas for ozone production will have up to 5 times more efficient than using normal oxygen in the air.