The water in Jinling City is clear, the bank is green, the ecology is good, and the scientific water control in Nanjing reappears the "ancient charm of blue waves".
Release time:2019-11-04 Views:182
The 19th National Congress of the CPC made "upholding harmonious coexistence between man and nature" one of the basic strategies for upholding and developing socialism with Chinese characteristics in the new era, pointing out the direction for China's ecological civilization and green development. In the new era, Nanjing is building itself into a "famous innovative city and beautiful ancient capital", and developing ecological civilization with high quality. Water environment is an important indicator closely related to people's sense of gain and happiness.
Since the beginning of this year, Nanjing Water Resources Bureau has cooperated with all districts and relevant units to deeply implement the national and provincial water pollution prevention and control action plan and comprehensively promote the improvement of water environment. Especially through a series of "scientific water control", to create Nanjing "Jiangnan beautiful land" of the blue wave of ancient charm.
Three cases of scientific water control
"Eight-character" treatment Method to Realize "Pond water Clearing"
The reservoir is located between the Qinhuai River control gate section and Longpan Middle Road. The 3.3 hectares of water surface collects the rainfall of the whole area and undertakes the heavy task of drainage, regulation and storage, as well as the function of the surrounding residents' hydrophic leisure. Once upon a time, due to the density of surrounding communities and sewage directly into the pond, the pond water is cloudy, black and smelly, greatly affecting the urban landscape and living environment.
Clean water pond management, formulated the "demolition, cut off, clean, repair, diversion, measurement, pipe, scenery" eight-character method. Including: demolition of 350 square metres of unauthorised construction along the Tong; Renovate 5 sewage outfalls, and complete rain and sewage diversion in the area to ensure that sewage does not go into the river; Dredging 3500 m; Implement ecological restoration and create an "underwater forest"; Carry out regular water replenishment; To carry out weekly water quality monitoring of reservoirs; Strengthen the river chief inspection and the "six river chiefs, one member" structure; Create a pond landscape.
Especially "ecological restoration". The relevant person in charge of Nanjing Water Bureau introduced that after local dredging, the ecological restoration work should be carried out by professional units. "Algal feeding insects guide the ecological restoration technology of water body" is adopted. Through cleaning the impurity of water body, optimizing and improving the bottom material, installing oxygenating equipment, putting algal feeding insects, constructing submerged plant system, and constructing aquatic animal community, Realize the ecological self-purification function of endogenous pollution of water body. "After ecological restoration, the reservoir has reached its self-purification capacity and withstood several heavy rainstorms that may have affected the water quality."
The "underwater forest" is clearly visible, and the crescent Lake is like a "moon" under the city wall.
Adjacent to the Ming City Wall in the west, Zhongshan in the north and Qinhuai River in the south, the 49.7-hectare Crescent Lake is an important landscape water body in Nanjing and a key link to the overall goal of "clear water, green bank and beautiful scenery" in Qinhuai.
Comprehensive improvement of river channels in 2016, improvement of water environment in 2018... In recent years, the Crescent Lake governance, "eight characters" governance law again play the effect. In particular, the method of "regional emergent and submerged plant communities" is adopted. Ecological restoration is carried out scientifically to build an ecological island in the center of the lake and an "underwater forest". Pollutants such as nitrogen, phosphorus and organic matter accumulated in the lake bottom for many years were directly removed to eliminate the internal pollution. By putting algal insects, swimming fish, snails, planting water grass, lotus root, the use of the silt to build suitable for birds habitat ecological island, build a stable ecosystem, water transparency significantly increased, in the range of 2 meters of water can be clear to the bottom.
At present, the water quality of Crescent Lake has reached the standard of Class IV, and is gradually breaking through to Class III. Walking by the lake, you can feel the Crescent Lake lake is wider, the lake is clear, the water grass is clearly visible, the new facilities along the lake, showing the "clear water green bank, gliding shallow" beauty, the satisfaction of the masses increased significantly.
Water and land under the same governance, once black and smelly river now "clear water, clean bank, beautiful scenery"
Then look at the north of Nanjing city Tongjiang River - North ten miles long Gully west branch governance. There were 66 chemical enterprises along the original, waste water directly into the river, and the river is seriously clogged with garbage, is the famous "black smelly river".
Through scientific demonstration, the west Branch treatment plan combines water environment treatment with flood control and drainage, and combines river landscape matching with ecological restoration, so as to achieve "treating both water and land, treating both symptoms and root causes". First, the demolition and repair, through the reconstruction of dilapidated houses, urban villages, the cumulative implementation of the relocation of 41,000 square meters along the line, give way to the river blue line, to meet the needs of river construction space; Second, the water quality is improved, the whole line of implementation of source control and pollution, the discharge into the river, the implementation of fixed person, fixed port responsibility, strictly prevent and inspect the construction site around the river, residential communities, catering, car washing and other illegal drainage behavior, strengthen the water quality monitoring, found problems in action and reform, since the second half of 2017, the West Branch Chemical bridge into the river section has achieved stable standards; Third, landscape improvement, construction of 53,000 square meters of green garden and 3 kilometers of through the green road along the river, creating urban green space for citizens to leisure, entertainment, fitness, make the past black and smelly river into today's "clear water, clean bank, beautiful scenery" scenic belt.
Nanjing has achieved these results in flood control this year
In the first three quarters, the water quality of Nanjing provincial examination section 100 % reached the first place in the province
Nanjing is a beautiful ancient capital with mountains and rivers and forests, and water is a unique gift given to Nanjing by nature -- water provides opportunities for the development of this metropolis developing across the river, and also makes Nanjing people feel the warm beauty of the small bridge running water in the South. Since 2016, Nanjing has achieved remarkable results in scientific water control.
Nanjing Water Bureau relevant person in charge of introduction, January to September this year, Nanjing city 22 national provincial examination section water quality all reach the standard, the proportion of class III from the same period last year 81.8\% increased to 100\%, ranked first in the province; The water quality of 7 provincial controlled tributaries in the river is all better than Class V. In the first half of this year, the National People's Congress and the provincial People's Congress successfully passed the law enforcement inspection of water pollution prevention and control and the national special action inspection of environmental protection for urban black and smelly water bodies, and the water control benefits initially emerged.
146 of the original black and smelly water bodies have reached the "long system long clear".
Nanjing city has 28 tributaries into the river. Since the beginning of this year, the water quality of seven provincial-level controlled tributaries into the river has improved significantly, reaching the provincial goal of monthly examination from January to September. Meanwhile, the 10 provincial-level controlled tributaries into the river that were identified by the municipal monitoring at the end of 2018 are under comprehensive remediation work.
This year, the remediation of bad V water bodies in Nanjing will continue in an orderly way, and the improvement of black and smelly water bodies will continue to consolidate. According to reports, in 2019, Nanjing plans to implement 91 river regulation, so far 88 of them have been completed and approved, 81 have been started, and 28 have been completed. At the same time, it will improve the working mechanism, strengthen daily maintenance and management, increase the law enforcement of drainage permits, adhere to the synchronization of construction and management, and pay attention to long-term.
At present, the city's 26 national provincial examination of the river 24 have reached the "long system long clear", the city examination of 150 black smelly water bodies 146 have reached the "long system long clear".
The regulated river is inspected by UAV every month to continuously maintain the effectiveness of governance
The relevant person in charge of Nanjing Water Bureau introduced that according to the deployment of municipal Party Committee and municipal government, the next step will focus on strengthening the long-term supervision of rivers and lakes to promote the continuous improvement of water environmental quality. "We will actively promote the integrated operation and maintenance mechanism of plant, network and river (lake), comprehensively carry out the monthly UAV inspection and supervision of the cleaned black and smelly river, and continue to maintain and consolidate the effectiveness of water environment treatment."
This year, Nanjing Water Resources Bureau and related units will promote the implementation of Jinchuan River, Waiqinhuai River, North Ten Li Changgou East branch, Chengnan River and other sections of the water quality standards, to ensure that 7 provincial control into the river tributary sections of water quality standards; At the same time, we will speed up the treatment of tributaries controlled by the city and improve the water environment of 91 substandard V river channels, providing a strong guarantee for the basic elimination of substandard V water bodies by 2020. The Xiangfang Village water Purification Station and the large circulation project in the north of Hexi have been completed. Breakpoints and blockages of the water system have been opened to realize smooth flow of fresh water and enhance the self-purification capacity of water bodies.
"Clear water and golden Tombs" in the eyes of citizens
After several years of regulation, the water of the clear pond is clear, the bank is green, this is the true name of the clear pond!
-- Mr. Zhao, resident of Fontainebleau Community
Last year, I went on a school trip to a sewage treatment plant and saw with my own eyes the black, smelly incoming sewage that had been treated to resemble tap water.
-- Wu Lao Cun Primary School student
Now whenever I have time, I will go to see the river I am responsible for. Sometimes, I just go to a small group of friends and relatives, and say "look, how is it? The water quality is good", and I can get a lot of praise.
-- Shen, the "folk River chief" of Xuanwu District
Before the community near the river, we are afraid to walk near. The river walk is full of people walking morning and evening.
-- Mr. Wang of Jiangning District
Article source: Yangtze Evening Post