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     running through guiyang from west to east like a beautiful belt, the nanming river rises in bainitian, linka village, pingba district, anshan city, guizhou province, flowing 118 km to wu river while receiving water from nine tributaries of chetian river, chenliang river, madi river, xiaoche river, shixi river, etc. it’s known as the “mother river” of guiyang. 

     wang dinglan is a retired teacher living in shengshi huacheng community near jiaxiu pavilion in nanming district, guiyang. this summer, many of her relatives came to visit her from other provinces. in addition to visiting famous tourist attractions, walking along the nanming river after dinner was also a very enjoyable thing for these old people. walking under bright street lights while feeling the gentle breeze, they talked about their families, and the changes to guiyang. particularly, they were amazed by the changes to nanming river. when they came to guiyang several years ago, the river was dirty and smelly, but this time, they saw a clear nanming river.  

     wang dinglan, who has lived near the nanming river since she was a child, is a witness of the changes to the nanming river over the years. back in the 1960s and 1970s, the nanming river was their playground where they swam, and caught shrimps and fish. the river was very clear, and many people even drank water from it. in the 1990s, with the appearance of a growing number of factories on the banks of the river, the water became more and more dirty and smelly. the clean nanming river disappeared.  what’s more, every year when floods occurred, houses on the banks would be flooded.  

     to solve the pollution and flooding problems, the guiyang municipal government has carried out a series of comprehensive renovation projects. 

     in 2001, the guiyang municipal government launched the “creating a clean nanming river in three years” comprehensive water environment mangement project, mainly to renovate interceptor ditches, dredge watercourse, and renovate effluent outlets. 

     in may 2007, another management project was conducted to divert rainwater and wastewater. increasing water flow and wastewater treatment capacity was the focus of the project.  

     in 2012, the nanming river water environment management project was launched, to systematically and orderly promote watercourse renovation, ecological restoration, and wastewater treatment.  

     the first phase started in 2012, and has basically solved the problem of black and smelly water. during the second phase starting in 2014, the wastewater interception system and wastewater treatment facilities were renovated. 

     through innovatively incorporating the tot and ppp models into the management of the nanming river, guiyang has solved the funding and technical problems. private investors were mobilized to participate in public infrastructure construction for pollution prevention and control.  “in such models, enterprises are responsible for the entire project process from planning, design, financing, construction, to operations and management, and governments only do full-process supervision,” said song wei, deputy director of the guiyang water authority and deputy commander of the nanming river water environment management project command. 

     every year since 2013, the guiyang municipal people’s government, guizhou provincial department of environmental protection, guizhou provincial department of housing and urban-rural development, and guizhou provincial department of science and technology would invite water environment management experts from three relevant ministries and commissions to discuss the phased plan of the nanming river water environment management project. the experts agreed that the project had become an example of black and smelly river management for other cities. subsequently, many cities started to draw experience from guiyang. 

     yin huicheng, who has been running a restaurant on boai road, nanming district for many years, told the reporter, “as the nanming river becomes clean, the bank landscape becomes beautiful, my business gets better, especially in summer, when more and more tourists come to guiyang for its coolness. when they walk along the nanming river and get tired, they would come to boai road for restaurants.” 

     in the morning, the nanming river is decorated by trees which play with gentle breeze. at night, it’s decorated by lights which illuminate streams of strollers. 

xinhua net link:http://news.xinhuanet.com/local/2016-08/30/c_129261559.htm