Sewage recycling plants a potential solution to water shortages: WRA


TAIPEI–The Water Resources Agency (WRA) said Sunday that it is working with the Ministry of the Interior to build sewage recycling plants in an effort to stabilize water supplies in the country.

The agency said it has been working with the ministry to build eight sewage recycling plants around the country in the hope of producing 1.2 million tons of recycled water per day by 2031.

The plants would process both household and industrial waste water, it said, adding that it has chosen Taichung and Kaohsiung as pilot areas for the recycling projects.

So far, both Taiwan Semiconductor Manufacturing Co. (TSMC) and China Steel Corp., the largest steelmaker in Taiwan, have joined the agency’s water recycling project in Kaohsiung’s Nantze Export Processing Zone.

Minister of the Interior Lee Hong-yuan said the recycled water will be sold for industrial, irrigation and toilet flushing use.

Taiwan produces about 2.85 million tons of waste water each day, according to government statistics.

Lee said that in New Taipei alone, the figure is 1.2 million tons per day. If the water is recycled completely, it could ease the country’s water crisis, he said.

He also pointed out that the build-up of silt in reservoirs is significantly reducing their storage capacity.

The storage capacity of the 50 reservoirs in Taiwan has been reduced to 60 percent of their original capacity and this could fall to only 50 percent by 2030, he said.