Everest Textile project in Taiwan drives water recovery above 90%

An international collaboration will deliver a treatment solution and help to increase water recovery at a textile mill in Taiwan. Following a tender, the local company All Way Environmental (AllWayEnv) was selected to deliver solutions from water treatment company ROTEC by WFI group.

Everest RO design illustration (Image: ROTEC)

Together, they will supply a reverse osmosis (RO) desalination system to treat feed water based on Flow Reversal RO (FR-RO) technology for a new 2,200 m3/day desalination plant for the Everest Textile company. Textile production, including cotton farming, continues to be a huge global water consumer, estimated to use around 93 billion m3 of water annually, according to a study by Ellen Macarthur Foundation.

Furthermore, Taiwan continues to face water challenges and unpredictability resulting from climate change, making it important for industries — including semiconductor and textile manufacturing — to increase water recovery and minimise waste. The project includes design, procurement, fabrication, installation and supply.

One of the challenges overcome was to design a solution to achieve the highest possible recovery rate of 90-92% while tackling high levels of total dissolved solids (TDS) and other scaling ions, and meeting high sustainability requirements. ROTEC CEO Boaz Shitzer said, “By increasing water recovery, enabling three times as much water capacity due to higher efficiency and reuse, we will collectively help textile processing operations to meet their water and sustainability goals.”

Everest RO design illustration (Image: ROTEC)

An analysis from the engineering team resulted in a unique solution to increase the recovery rate of the plant, using ROTEC’s simulations, FR-RO technology, and methodology, as well as software by Hydranautics and Avista. Everest’s sustainability strategy includes the ‘7R Discipline’: rethink, redesign, reduce, reuse, repair, recycle and recover.

Frank Lin, CSO from Everest Textile, added, “As the first vertically integrated textile manufacturer in Taiwan, we play a part in reducing water usage across our operations as part of our broader sustainability ambitions. By partnering with AllWayEnv and ROTEC for the delivery of the FR-RO system, the operation will help to save water, energy and carbon.”