Liu'an practice in the new era of governance of Shuixing City

The rain fell in the Dabie Mountains of Western Anhui. The precipitation was collected by the Xiyu River and the East Luohe River. It was converted into the Luohe River in Xijiakou Township. Three years ago, a group of people in the Three Gorges came to Liu'an, Anhui to explore the connection between Liu'an and his mother's river, paid close attention to every detail related to the city related to water, build a way of harmonious symbiosis in cities, and water, and strive to inspire every every way. The maximum energy and charm of a drop of water glows the glorious glory of this pearl in western Anhui.

Shooting production: Hu Jiusi

Liu'an, who is governing Huaixing, encountered a new "water problem"

From the mountains to the plain, the Luohe River is wrapped in rich nutrition, moisturizing the towns and villages of the Jianghuai Plain for a long time, and its drought and flooding have also threatened the life of millions of people.

In the 1950s, under the instructions of Chairman Mao Zedong's "must be repaired by the Huaihe River", Foziling, Meishan, Xiang Hongdian, Mozan, Longhekou, and Baolian Cliff were built upstream. River drought and flood alternately brought to the watershed severe natural disasters. In addition, at the downstream of the convergence of the East and West Luo River, people have built a total length of 104.5 kilometers of Luohe, and cooperated with other dry channels, channels, Tangyan and other irrigation systems to communicate with the three major water systems of Luohe, Shihe, and Hangbu River. Cross the Yangtze River and Huaihe River, the scientific utilization of rain and flood resources and the optimized allocation of water resources.

Luohe's general canal is 56.8 kilometers long in Liu'an City, spanning the entire urban area, and the drinking water in the main urban area is basically located on the Luohe general canal. The people of Liu'an called the Luohe River as "Laoshu River", and the Langhe River General Grand Canal was the "Xin Luohe". In their hearts, the new Lao Yanghe was the mother river of Liu'an.

The governance Huai in the middle of the last century basically resolved the security issues brought by the frequent droughts and floods of the Luohe River. However, with the rapid development of the city and the surge in population, the contradiction between the Liu'an people and the water once again became sharp. These contradictions have caused Liu'an's ecological environment to become increasingly prominent. It is reflected in the water, mainly because the sewage treatment capacity cannot keep up with the development of the city. There are more than a dozen inland rivers such as Junhe and Jiangjiagou, and there are different degrees of "black odor" problems, which seriously affects the living environment. Inland river pollution affects the water quality ecology of the Luohe River with the flow of water, which will adversely affect the downstream environment.

▲ Luohe Liu'an City South Water Conservancy Hub Project

"Black Stink" is not only the "big difficulties" of the ecological environment of Liu'an City, but also the "heart disease" of the local people.

"Because the water source comes from the depths of Dabie Mountain, the good water quality is originally the most proud label for Liu'an City. However, in recent years, some river ditch in the city has black hair and smelly, which has greatly affected the confidence of the Liu'an people." Wang Baolong said. He is the deputy general manager of the Sanxia First Phase Water Environmental Comprehensive Governance Co., Ltd., the Three Gorges Environmental Protection Group, which belongs to the Three Gorges Group. When he arrived in Liu'an to engage in the protection of Changjiang University, he felt the confusion and anxiety in the heart of Liu'an.

Facing the severe ecological environment challenges, the Liu'an Municipal Party Committee and Municipal Government attach great importance to it, but it is not difficult to carry out the management of comprehensive water environmental system management for existing problems.

Fate the Three Gorges Liu'an to find a "water steward"

On July 18, 2018, the Three Gorges Group and the Wuhu Municipal Government signed the "Cooperation Framework Agreement on the Green Development Demonstration Zone of the Yangtze River Construction of the Yangtze River". After careful investigation, the Three Gorges Group found out the problem of Wuhu water and proposed a water treatment plan to govern the governance. The results were initially emerged, and the promotion mode and experience were formed.

On June 5, 2019, the Three Gorges Group was promoted to carry out the site of the urban sewage management work of the Yangtze River Economic Belt. On August 2nd, the Anhui Provincial Development and Reform Commission organized the Three Gorges Group to participate in the Three Gorges Group to participate in the Urban sewage management meeting of the beautiful Yangtze River (Anhui) Economic Belt, and promote the application of "Wuhu experience" to the province.

This made Liu'an, who was also troubled by the problem of water treatment.

The problem of urban water management has some commonality. Liu'an and Wuhu are brothers cities in the same province. Wuhu and Three Gorges can successfully cooperate to achieve significant results. Liu'an can also.

Within one week after the promotion of "Wuhu Experience", the relevant person in charge of Liu'an City led a team to investigate the Three Gorges Group Yangtze River Environmental Protection Group. The two sides immediately signed a total of the Yangtze River Framework Agreement on August 8, 2019 to promote the Promoting Green Development Cooperation Framework, and fully launched the Yangtze River Protection of Liu'an City. In just three months, the PPP project of the comprehensive governance of the two parties cooperated with the PPP project successfully landed. "It is a new mission to give play to the main force of the backbone in the protection of the Yangtze River. It is still our significant effect that we have shown in Wuhu's 'systemic' water -governance ideas. "Huang Rongmin, general manager of Anhui Regional Company of the Yangtze River Environmental Protection Group, is also the person in charge of the Wuhu project that year. Still relying on the traditional way of "problems-patch-again-again-then patch ', the effect of repair and supplementation can only be worse and worse."

Liu'an and the Three Gorges are associated with "Wuhu experience", but Liu'an Zhishui is not a replica of "Wuhu experience". Through several years of practice in the protection of the Yangtze River, the Three Gorges Group has participated in the concept of water treatment of the Yangtze River protection, and has continuously evolved, the experience of water treatment has been continuously accumulated. Shortly after Liu'an, the Three Gorges Group put forward the city's water control thinking on the issue of Liu'an.

"Liu'an draws on the water control experience of the Three Gorges Group in other cities, and gives full play to the 'post -issuing advantage'. On the basis of the governance model of Wuhu 'Factory Network", combined with the characteristics of small water coefficients in Liu'an City, and limited water environment capacity, the water environment capacity is limited. Adopt the system governance model of the "Factory River (Lake)", and achieve effective improvement of the overall water environment of the city through measures such as watershed coordination, regional coordination, and mud water. " Chen Xiang, general manager of the Period Water Environment Comprehensive Governance Company.

▲ The Chengbei Water Quality purification plant and sludge disposal plant in Lu'an City

Like many cities, Liu'an at that time also had the phenomenon of "tap water plants in different areas belonged to different enterprise management, and multiple sewage treatment plants could not be connected to cooperate". On the basis of the "Wuhu experience" of the factory network river (lake), the Three Gorges Group has further proposed the integration of urban and rural areas, integrated water supply and drainage, and building management. With the leadership and support of the Liu'an Municipal Party Committee and Municipal Government, the Three Gorges Group coordinated the wading work, and used systematic governance thinking to realize the cost reduction and efficiency of water control.

Liu'an practice of the green development concept of water management city

Out of the recognition of the Three Gorges water control, Liu'an City gave the biggest trust in the Three Gorges Group. "Liu'an City became the first city to provide all the wading assets to the Three Gorges to build and operate." Huang Rongmin said.

Nowadays, the rain is raining in Dabie Mountain, and the rainwater flows to the horizontal head hub.

Entering the water of the general canal, first enter the relevant tap water factory, purify the processing and send it to millions of households. Urban sewage and rainfall are diverted to the pipelines of rain and sewage, and they came to the sewage treatment plant such as Fenghuang Bridge and the Jiangjiagou tuned pond for treatment. The medium water after the sewage treatment plant will enter the ecological wetland of Su Danyan, perform natural ecological purification, and finally return to the Luohe River. Part of the water will also enter the Zhongshui Treatment Plant, which is further processed and becomes a cooling water for Liu'an Power Plant. The sludge formed after the sewage treatment will be sent to the sludge disposal factory after treatment.

The water that did not enter the general canal and stayed in the main river of the Luohe River must pass through the water conservancy hub of the south of the city. The water level is raised here to form a library capacity of 33 million cubic meters to provide reliable guarantees for water supply in urban water during the dry period. At the same time, it creates a wide waterfront landscape and ecological wetland green corridor in the upstream.

▲ Su Danyan Wetland Park

The pipeline network, tap water plant, sewage (medium water) treatment plant, sludge disposal plant, Su Danyan ecological wetland, and Chengnan Water Resources Hub's wading assets are uniformly constructed and operated by the Yangtze River Environmental Protection Group of the Three Gorges Group. "How much water comes up in the upstream, how much water should be supplied by the water plant, and how much water should be treated with sewage treatment plants. These numbers associated with each other have become big data that supports the efficient use of water resources under the comprehensive management of 'water steward'." Huang Rongmin said.

▲ After governance, Liu'an City Junhe

Huang Rongmin's outlook is actually only part of the function of urban smart water steward (referred to as "water steward"). At present, the Three Gorges Group is promoting the implementation of the water butler in the entire basin. The work of Liu'an Water has been highly recognized by provinces and cities. The water -related assets are basically collected and the ownership is clear. Cities that implement the water butler model.

According to Chen Jianghai, deputy general manager of the Three Gorges Smart Water Co., Ltd., the water butler model that is promoting the landing is based on the entry point for drainage, and the comprehensive system will be fully systematically assigned to the urban wading system governance goals and management responsibilities. During the period, the Three Gorges Group's unified planning, construction, operation, management, and dispatch of water -related facilities such as water supply, drainage, pipeline networks, flood prevention and drainage, rivers and lakes, etc., through the overall planning, scientific planning, accurate investment and system governance through the global overall region, and the establishment of local establishment of the local area. The pricing and adjustment mechanism of supervision assets and water prices gradually realize the marketization of urban water ecological environment governance, solve the fundamental problem of urban water ecological environment, realize the long -term stability of urban water environment and continuously improve, and help local green and low -carbon development.

▲ The water quality purification plant maintains the city's water ecology

In the future, water butler will help to achieve clearer urban lakes and rivers, more beautiful wetland landscapes, more reasonable water price mechanism, and stronger sewage treatment capacity.Shuimei will also bring the development of industries such as tourism, tourism agriculture, and environmental protection, and fully realize the ecological value of water control.At the same time, the urban response to extreme weather is also stronger, and it has more guarantees to bring more guarantees to socio -economic development and the safety of people's lives and property.Photography of this article: Hu Jiusi

Author: Xie Ze

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