According to 2011 research at Nanjing Agricultural University, roughly 10% of all rice sold in China is tainted by cadmium, the result of use of industrial wastewater for irrigation, dumping of industrial waste and overapplication of fertilizer.

WSJ: Cadmium-Tainted Rice Found in Guangzhou

The company is now growing its portfolio from municipal wastewater projects to include industrial contracts, desalination and water-reuse projects.

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The Flow Technologies segment designs, manufactures and markets products and services designed for the transfer and flow of clean water, wastewater and a variety of industrial applications.

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The startup also plans to use the money to develop products for processing wastewater and delivering purified water for industrial operations such as oil and gas or beverage production, Green said.

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The final step was to separate organic solids from the wastewater and combine them with wood chips to generate industrial compost.

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In a statement Dwr Cymru Welsh Water said they were dealing with a burst on their wastewater network which has occurred close to Kinmel Bay Industrial Estate.

BBC: Clwyd Estuary: Rhyl sewage spill warning