The water quality of 7 provincial controlled tributaries into the river has been significantly improved

As a riverside and cross-river city, Nanjing is nurtured by the Yangtze River and shares weal and woe with it.

There are 28 rivers in the city leading into the Yangtze, but once upon a time, the flow into the river was anything but bubbling. From the top of the sky, into the river a strip of black water, once became the city's dull pain.

The water quality of the river directly determines whether Nanjing is a "plus" or a "minus" for the water quality of the Yangtze River. In the context of the Yangtze River protection, Nanjing has deeply implemented the requirements of "jointly pursuing great protection and not carrying out large-scale development" and the concept of "lucid waters and lush mountains are gold and silver mountains". It has persisted in taking the environmental improvement of the branch water running into the Yangtze River as an important part of the Yangtze River protection work, scientific water control and systematic management, one river with one plan, and never let go.

Last weekend, Nanjing experienced a heavy rain. On the afternoon of April 19, it was sunny after the rain. Many citizens came to the Stone City Ruins Park for a walk. It is near the Qinhuai River. After heavy rain, the river is still clear. The green trees and red flowers on the bank contrast with the clear water of the river, which makes people feel relaxed and happy.

Among the 28 tributaries of Nanjing, seven major river systems are controlled by the province, and Qinhuai River is one of them. Since the beginning of spring this year, Nanjing rain, but the rainfall did not lead to repeated river water quality, according to the city Bureau of Ecological environment regular monitoring, the water quality here reached class III, has been long clear.

From January to March this year, the water quality of 7 tributaries into the river, including the outer Qinhuai River, was significantly improved, 5 of which were classified as class Ⅲ and 1 as class Ⅱ.

Seven provinces controlled the tributaries of the river, and four were once classified as inferior V

Nanjing is located in the lower reaches of the Yangtze River, the water network is dense, the city large and small tributaries into the river a total of 28. In 2018, seven of the 28 tributaries into the river, namely Jinchuan River, Outer Qinhuai River, West Branch of North Ten Li Changgou, east branch of North Ten Li Changgou, Chengnan River, Qinhuai New River and Chuhe River, were included in the provincial government's assessment. The reporter learned from the environmental, water and other departments that these seven rivers are not only tributaries into the river, but also the main urban water system of Nanjing.

Among them, Jinchuan River originates from Gulougang and the north foot of Qingliang Mountain, connected with Xuanwu Lake, downstream through Baota Bridge into the Yangtze River, is the main inland river in the north of Nanjing. The outer Qinhuai River is the longest of the seven provincial-controlled tributaries. Starting from Dongshan Bridge of Jiangning, it flows through four districts of Jiangning, Qinhuai, Jianye and Gulou, and empties into the Yangtze River from three branches. The New Qinhuai River is an artificial river channel, which is the flood diversion channel of the Qinhuai River. It integrates flood flow, irrigation and shipping functions, and flows through Jiangning and Yuhuatai districts. The west and east branches of the North Ten Li Changgou are mainly located in Qixia District, and the Chengnan River and Chuhe River are located in the north of the river.

Before 2018, four of the seven provincially-controlled tributaries had poor water quality. According to the water quality monitoring data of the Ministry of Environment at the beginning of 2018, the water quality of Jinchuan River (Baota Bridge), Waiqinhuai River (Sancha estuary), the east branch of Beishilichang River (Hongshan Bridge), and Chengnanhe River (Longwangmiao) sections are all classified as inferior V.

"The main reason for the poor water quality in the tributaries of the provincial control into the river is the sewage flowing into the river." Municipal water Bureau relevant responsible person introduced, taking Jinchuan River as an example, the basin mainly covers the old city, surrounding residential areas more, in the past there is sewage down the river phenomenon, North ten Li Changgou west branch and east branch in addition to domestic sewage, in the past there are industrial wastewater down the river. In the past 20 years or more, these rivers have not been dredging treatment, and some of the lack of water replenishment, poor flow rate, resulting in black and smelly water quality.

Realize the "counterattack", and create the experience of Nanjing in the management of 4 inferior V tributaries

It is a basic requirement of the provincial government, but in 2018, it will be much harder for Nanjing to achieve this goal.

As the provincial capital of the Yangtze River, Nanjing placed the improvement of tributaries into the Yangtze River in an important position in water environment management, and resolutely won the battle against pollution. In June 2018, the Standing Committee of the CPC Municipal Committee studied and decided to establish the leadership responsibility system for the improvement of water quality in the sections of rivers controlled by the province. The main leaders of the four sets of municipal bodies each claimed a sub-grade V tributary into the river, coordinated at a high level, overcome difficulties and resolutely hit the hard point of water quality reaching the standard. Since June 2018, the main leaders of the four sets of municipal bodies have been dispatching four bad-V classes into tributaries of the river every month. The joint efforts of various plates and departments have achieved unprecedented efforts and achievements in water control.

Take the Jinchuan River as an example, Jinchuan River is divided into the inner Jinchuan River and the outer Jinchuan River, as well as the south ten li Changgou, north of the city moat and other small tributaries 13. In the process of remediation, 1,178 drainage outlets in the basin have been classified by "one step and one policy" to achieve accurate pollution control. Meanwhile, through comprehensive measures such as dredging, drainage, ecological restoration, drainage and water replenishment, 15 watercourses in the Jinchuan River Basin have been comprehensively implemented and basically completed. In 2019, the sections of the Pagoda Bridge at the entrance of the Jinchuan River reached the standard for the whole year, with almost all sections reaching above Class V, thus getting rid of the "black" label.

The Pagoda Bridge, located at the entrance of the Jinchuan River, is the last checkpoint for the river to flow into the Yangtze River. Before 2018, the river water body here black and smelly, from the Yangtze River bridge down, the river, the river "clear-cut", but today, here is another scene - the river clear to the bottom, the bank after cleaning, tree-lined. According to the latest water quality monitoring, some indexes of Baota Bridge section have exceeded Class III.

Not only the Jinchuan River, but also the other six provincial tributaries have further improved their water quality compared to last year. Qian Feng, director of the municipal Bureau of Ecology and Environment, said that from January to March, the water quality of the Jinchuan River, the Outer Qinhuai River, the west branch of the North Shilianggou River, the east branch of the North Shilianggou River and the Chengnan River tributaries were all classified as Class III, the Qinhuai Xinhe River as class II, and the Chuhe River as class IV. "The achievement was attributed to the provincial control of water quality in tributaries and the establishment of the 'one river, one policy' system." Qian Feng said.

Protect a river water into the river. The improvement of the water quality of the tributaries into the Yangtze River is not only a practical action for Nanjing to fulfill the requirements of Yangtze River protection, but also of great significance for the improvement of the city's water environment.

Xiangfang Village water purification station, located near the Qingshui Pond in the south of the city, is one of the key water environment improvement projects of the city in 2019. It has been completed and put into use. Into the water purification station, machinery roar, a pool of water from the outer Qinhuai River. Here, the "high-quality water" of the outer Qinhuai River is filtered and precipitated, and becomes more transparent after removing suspended matter. It is continuously injected into the inner Qinhuai River to replenish water and improve the water quality of the inner Qinhuai River.

"Without the improvement of the water quality of the outer Qinhuai River as a basis, ecological water replenishment can not be implemented smoothly." City water rise office relevant responsible person said.

Today, the west branch and east branch of Beilichanggou have been transformed from the black and smelly river in the past into urban landscape belt. The west branch of Beilichanggou has been renovated and integrated into the Yanziji Riverside scenic belt, becoming an important link.

This year, our city put forward the goal of improving the water quality of all the tributaries into the river. The relevant person in charge of the municipal Bureau of Ecological Environment introduced that the success of provincial control of tributaries into the river will provide experience for the other 21 municipal control of tributaries into the river, and the leadership responsibility system will be further promoted. At the same time, in 2019, Nanjing ranked first in the comprehensive evaluation of water environment in the province, which will provide Nanjing samples and experience for other cities in the province in river management.

Water control will continue to win this year

On March 20, the city's battle against Pollution and the River Chief system work conference was held. The leaders of various sectors in Nanjing submitted the "command of arms" -- the statement of responsibility for the battle against pollution by 2020, including the water control goal.

2020 is the end of Nanjing's three-year water control action plan. This year's water environment remediation will be pursued on the basis of the first place in the province last year, among which, the remediation of tributaries into the river will mainly carry out these work

We will continue to carry out the leadership responsibility system. The provincial control of tributaries into the river was expanded from city-level leaders to city-level and district-level leaders. The city-level leaders remained unchanged, and the secretaries of each responsible district Party committees were added as district-level leaders. City control into the river tributaries are linked by the responsible district Party secretary.

To ensure that the water quality of tributaries controlled by the province is stable and up to standard. The environmental improvement project of Baota Bridge section of the Waijinchuan River has begun construction, the preliminary design scheme of the Qinhuai River dredging project is being prepared, and the ecological restoration project of the east branch of the North Ten Li Changgou is about to complete the EPC+O bidding.

City control into the river tributaries water quality improvement. Two of the 21 city-controlled tributaries, namely the Benmin River and the Gongnong River, are still classified as Grade V, and they must be 100 percent free of bad water by the end of the year. At present, the Benmin River has started to clean up, Gongnong River will also start to clean up in May. Jiuxiang River, Qixiang River, Jiangning River, Binjiang River, Banqiao River five tributaries into the river whose water quality fluctuated from January to March have been formulated in accordance with the "one river, one policy" water quality improvement plan.

We will implement the working mechanism for inspection and supervision. We will strictly assess the improvement of water environment and the quantitative assessment oriented by water quality standards, increase daily inspection and efficient drone inspection, and effectively strengthen the daily maintenance and management of rivers and lakes and guarantee the improvement of water environment quality. We will implement water quality monitoring, early warning and coordinated scheduling mechanisms, strengthen coordination with ecological and environmental departments, encrypt water quality inspection, monitoring and early warning, and respond quickly when water quality exceeds standards or fluctuates abnormally.

"The improvement of the water quality of the seven major rivers has strengthened our confidence and provided experience for the environmental improvement of the city's rivers and waterways." City related departments said that Nanjing will seize the victory and accelerate the promotion of other rivers into the river and the city's river water quality improvement, to protect the clean water of a river, the realization of the city's green water flow to make new contributions.

Article source: Nanjing Daily