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News Release
07.07.2015

Opening ceremony of sand filtration backwash water treatment facilities at the Wierden Drinking Water Treatment Plant in the Netherlands was held
- Promoting the effective use of sand filtration backwash water using a ceramic membrane -

METAWATER Co., Ltd. (Headquarters: Tokyo, Japan; President: Tomoyasu Kida; hereinafter "METAWATER") is pleased to announce that, on June 3 (local time), an opening ceremony was held at the sand filtration backwash water treatment facilities at the Wierden Drinking Water Treatment Plant in the Netherlands where METAWATER has conducted a test run since February 2015. The ceremony was attended by a large number of participants including representatives of the Netherlands' largest water supply company Vitens, the European Commission, and METAWATER's collaboration partner Rood Wit Blauw Holding B.V. (Netherlands).

This development project has been implemented through public-private partnerships using subsidies from the EU. The new facilities are designed to promote the effective use of water resources by filtering sand filtration backwash water with a ceramic membrane and putting the water back into the water purification process.

METAWATER, together with Vitens, is proactively proposing sand filtration backwash water treatment facilities as a new use of ceramic membranes to European countries including the Netherlands.

News Release dated February 6, 2015 "METAWATER starts a test run of sand filtration backwash water treatment facilities at the Wierden Drinking Water Treatment Plant" https://www.metawater.co.jp/eng/news/2015/0206.html

Opening ceremony
Left: Dr. Lieve Declercq (Vitens Chairwoman)
Right: Dr. Didier Gambier (European Commission
EASME Head)

Sand filtration backwash water treatment
facilities using a ceramic membrane

Overview of the Wierden Drinking Water Treatment Plant

Official name: Wierden Drinking Water Treatment Plant
Water purification flow: Water intake (groundwater) → rapid sand filtration → water softening (pellet water softening system) → manganese sand filtration → water distribution (no flocculant added)
Water treatment capacity: 22,000m3/day

Overview of the new facilities

Number of ceramic elements: 24 (12 × 2 lines)
Average treatment capacity: 1,200m3/day (maximum treatment capacity:1,700m3/day)
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