​Guizhou Provincial Department of Water Resources | "Second Water Source" Showcases Its Skills in Regenerating Water Resources and Unleashing the Important Potential of Urban Water Conservation

  With the continuous acceleration of urbanization in Guiyang, the contradiction between urban water supply and demand has become increasingly prominent, and reclaimedwater continues to play an important potential. According to statistics, after urban sewage collection and treatment, in addition to treatment consumption and natural consumption, more than 90% of the recycled water can be reused as the "second water source", playing an important role in urban water conservation.

Turning waste into treasure, solving the thirst of the city

The China Water Environment Group Guiyang Qingshan UndergroundReclaimed WWTPshowcases the various uses of recycled water, including "ecological landscape", mainly entering the Nanming River to supplement landscape water, which has played a positive and effective role in improving the water quality of the Nanming River and alleviating the problem of insufficient replenishment water in the river; "Greening irrigation", as a water supply for landscaping and water supply in the landscape park above the factory area, not only realizes the utilization of wastewaterresources, but also plays a positive role in the scientific display and water education promotion of wastewaterregeneration treatment; "Public Toilet Flushing" is used to flush 16 public toilets in the Aha Lake National Wetland Park, solving the problem of tap water consumption caused by tourism development in the Aha Lake National Wetland Park; Cleaning and upkeep, currently with an annual water intake of approximately 110000 cubic meters, mainly supplies water to municipal sanitation and is used for cleaning and upkeep of urban streets in Nanming District. Guiyang City will continue to explore the application of recycled water in industries, agriculture, and other fields, improve the efficiency of water resource utilization, and truly quench the thirst of the city.

Recycling, the Scenery of Beautiful Cities

Recently, the Guancheng River, which has been disappearing for nearly 20 years, was officially uncovered and restored, thanks to the fact that Guiyi and Liuguangmen Regenerated Water Plant provide 100000 to 130000 tons of ecological replenishment water to the Guancheng River basin every day (with a full load of up to 170000 tons), making reclaimedwater the main source of replenishment water for the Guancheng River. In the past, the Guancheng River was the only inferior Class V river among the first level tributaries of the Nanming River. Nowadays, the reappearance of clear springs and the sound of water in Guancheng River is not only an important case of renewable water resources in Guiyang City, but also a successful practice of the concept of "green mountains and clear waters are invaluable assets". In addition, the high-quality reclaimedwater produced by the 12 reclaimedWWTPin the central urban area of Guiyang is mainly used for supplementing the ecological environment of rivers such as Nanming River, Shixi River, Chenliang River, and Maijia River, providing water source and quality assurance for the ecological base flow of rivers such as Nanming River.

Continuous regeneration, protecting the prosperity of the city

The ecological, economic, social, and livelihood benefits brought about by the restoration of the Guancheng River indicate that the use of reclaimedwater resources is a green, water-saving, and sustainable solution to solve the problems of water resources, water environment, water safety, and water ecological governance. It is an inevitable requirement for promoting high-quality urban development.Continuously increasing the use of reclaimedwater for wastewater treatment, alleviating the supply-demand contradiction of water resources, improving water efficiency, expanding the space for sustainable economic and social development through water conservation, improving development level, and safeguarding the prosperity of Guiyang City