China Accomplishes Remarkable Achievements on Urban Water Saving
From 1991 to 2008, China saved a total volume of 59.498 billion m3 of water. In 2008, the volume of saved water was 6.59 billion m3, making up 13% in the total urban water supply volume of the year. In comparison with 2001, the urban population increased by 36% in 2008 and the popularization rate of urban water consumption grew from 72.3% to 94.7%, while the urban water consumption only increased by 7%, and the annual urban water consumption was maintained at around 50 billion m3. Meanwhile, the urban water consumption per capita dropped from 556.3 liter/(person per day) in 1998 to 390.5 liter/(person per day) in 2008, decreasing by 30% in 10 years.In 2001, the living water consumption of urban residents reached the peak of 153.5 liter/(person per day). Then since 2002, it started to reduce, and dropped to 130.5 liter/(person per day) in 2008. In addition, the recycling rate of industrial water increased from 75.7% in 2001 to 86.0% in 2008, and the water consumption per 10,000 yuan (RMB) industrial added value dropped from 335 m3 in 1998 to 130 m3 in 2008.
The total length of over 50 year-old and severely damaged water supply pipe that was repaired reached 70,000 km by 2008. The damage rate of the urban water supply network reduced from 26.13% in 2005 to 11.92% in 2008.From 2001 to 2008, the reuse of urban recycled sewage in China is 15.773 billion m3, and the utilization rate of recycled water increased from 5.7% to 9.2%.