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News Release
06.20.2016

Development of ultraviolet irradiation equipment for water treatment facilities using ultraviolet light emitting diodes (UV-LED)
Enabling a water treatment capacity of 2,000 m3/day using the world’s top-class, high- power UV-LED

Metawater Co., Ltd. (Headquarters: Tokyo, Japan; President: Tomoyasu Kida; hereinafter referred to as “Metawater”) is pleased to announce that it has developed UV irradiation equipment for water treatment facilities with a treatment capacity of 2,000 m3/day using the world’s top-class, high-power UV-LED. Metawater is working to release the product in FY2017 and will accelerate the development process with the aim of enhancing product lineups and making products available for use in water treatment facilities with a treatment capacity of 20,000 m3/day and population served of 100,000 people.

Background to the development

UV inactivation is one of the ways to control chlorine-resistant pathogenic protozoa including Cryptosporidium in the water treatment process. While UV irradiation equipment using mercury vapor lamps is now used generally, there is a global tendency to tighten regulations on mercury emissions. The Minamata Convention on Mercury (the “Minamata Convention”), a global treaty to prevent mercury pollution, was adopted at the Diplomatic Conference of the United Nations Environment Programme (UNEP) held in October 2013. Meanwhile, a cabinet decision was made in Japan to conclude the Minamata Convention in February 2016. Against this backdrop, there is a growing need for safe UV irradiation equipment using UV-LED.
The newly developed UV irradiation equipment will enable the industry’s first water treatment capacity of 2,000 m3/day using Metawater ’s long-cultivated water treatment technologies and the world’s top-class, high-power UV-LED. Approximately 1,800 water treatment facilities in Japan are estimated* to be considering introducing UV irradiation equipment to control Cryptosporidium. In order to accommodate these needs, Metawater is striving to quickly commercialize the product to ensure its smooth introduction.
 Going forward, Metawater will accelerate the development of next-generation UV irradiation equipment that embodies the energy-saving and long-life characteristics of LEDs with the aim of accommodating cost reduction needs in the water business, while helping to keep the water business safe.
* Based on Metawater’s estimation

Conceptual image of UV irradiation equipment

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