Before the treatment of the black and smelly water body of Maozhou River
Before the treatment of the black and smelly water body of Maozhou RiverCinemaAfter the treatment of the black and smelly water body of Maozhou RiverCinema
Text/Photo Jinyang.com reporter Tan Zheng Hou Mengfei
From the map, the Maozhou River, which is only 41.61 kilometers long, is not conspicuous; but in the water control map of Guangdong, it is definitely a river that cannot be ignored, and it is enough to be written into the development of water control concepts and water control technology in Guangdong and even ChinaBabaylan is in history.
As the boundary river between Shenzhen and Dongguan, Maozhou River was once the “most polluted river in the Pearl River”. In recent years, the provincial party committee has attached great importance to the comprehensive water environment improvement work. Provincial Party Secretary Li Xi has served as the province’s first river chief and has taken the lead in supervising the pollution control of Maozhou River. After effective governance of three levels of Cinema, Shenzhen and Dongguan cooperated to fight, and the water quality of Maozhou River was significantly improved. Data shows that in the first five months of this year, the ammonia nitrogen and total phosphorus concentrations in the national examination section of the Maozhouhe Gonghe Gonghe Village fell sharply by 35.2% and 41.1% year-on-year respectively.
The once rotten river beaches and stinky ditches have now become wetland parks and green roads along the river. In March this year, the Maozhou River pilot section of Wanli Bidao, Guangdong started construction. The Maozhou River Basin will combine water management, city management with production management, promote regional environmental optimization, comprehensive utilization of basin space, industrial structure transformation and urban functions, and become a model area for comprehensive governance and development of “river + industry + city”.
Great changes
From the black and smelly water bodies to the singing of birds and the fragrance of flowers
After the midsummer rain, the air in Yanluo wetland on the banks of Maozhou River in Bao’an District, Shenzhen is fresh. Liu Yilin, who lives in Bao’an District, Shenzhen, took his mother and two children to Yanluo Wetland for a trip. “When the weather is good recently, we often come to Komiks to play.” Liu Yilin said that she has lived in Bao’an District for more than 8 years. In the past, Babaylan could only take her children to the park in the city to play.
Until the end of last year, her circle of friends was flooded with Yanluo Wetland. “Many friends came to the wetland to play, and they also took short videos and photos to upload to their friends circle.” When they first came to Yanluo Wetland, Liu Yilin was a little unbelievable.
Previously, MaozhouheKomiksThere are mudflats on both sides, and the black silt more than one meter deep exudes a pungent stench. Passersby have to cover their noses. Now, the “curtain-shaped” river beach more than 800 meters above the upper reaches of the Maozhou River has been built into a riverside wetland park – Yanluo Wetland, which has comprehensive functions such as water quality purification and improvement, ecological restoration and protection, landscape leisure and recreation, ecological science popularization and education.
MaoCinemaThe River of the Yangtze River has changed from “black and smelly” to “colorful”! Pinky and yellow canna, purple-blue Zaolihua, gray-green flower leaves and reeds, green windmill grass… Today, more than 500 plants have enabled Yanluo Wetland to have flowers all year round, and many birds also appear here.
The roots of these plants still have “secrets”. “Komiks Most of the organisms planted in the Wetland Park take into account the dual functions of beautification and water purification. ” Hu Haitao, director of Maozhou River Management Office, River Management Center of Shenzhen Water Affairs Bureau, introduced that 18,000 cubic meters of treated Maozhou River sewage enters the wetland park every day. After purifying through ecological purification science popularization area (pretreatment), Wandering Flower Sea Tour Area (vertical undercurrent wetland), and gurgling stream conservation area (top stream wetland), the water flowing out of the wetland park can meet the standard of surface water Class IV, and then replenish Babaylan and improve the water quality of the middle and upper reaches of the Maozhou River.
Innovation
Tidal flat silt “turned into” permeable bricks
href=”https://comicmov.com/”>KomiksIn the process of the management of the Zhouhe River, one of the major problems stems from dealing with silt in the mudflats. href=”https://comicmov.com/”>Komiks mud. According to reports, there are 4.2 million cubic meters of polluted bottom sludge in the Maozhou River Basin. Where can these bottom sludge be transported? How to deal with it? Will it cause secondary pollution? It is an inevitable part of the Maozhou River control. Tao Ming, director of the Office of the Maozhou River Comprehensive Water Environment Remediation Command of China Power Construction, mentioned in an interview with the media that the water quality of the Maozhou River is not only pollution of organic matter, but also severe pollution of inorganic matter.
In order to find a better “residence” of these bottom sludge, the Shenzhen Municipal Government worked with China Power Construction to excavate and deal with these sludges and href=”https://comicmov.com/”>Cinema reuse.
Now there are several dredgers running through the Maozhou River. These dredgers are on the river channel.After environmentally friendly dredging, the silt is sent through pipelines to the Maohe No. 1 subsilt treatment plant of China Power Construction Maohe River located on the bank of Maozhou River.
According to Zhai Deqin, deputy chief engineer of China Power Construction Water Environmental Governance Technology Co., Ltd., turning these silt into treasures in an environmentally friendly way is the key to dealing with these silt.
It is understood that the residual soil or mud cake formed by dehydration and harmless treatment of contaminated bottom sludge is mainly used for dam filling or other engineering foundation backfill. In addition, part of the residual soil is used to make ceramic granules and bricks. At the same time, the remaining sand washed through the mud and sand separation system is used for backfill of artificial ground, pipeline engineering trench, etc. after being tested for harmlessness by sand washing and screening.
It is understood that every permeable brick in Yanluo Wetland originates from the bottom mud dug in Maozhou River. These bottom muds returned to the Maozhou River with another appearance.
Co-governance
Shenzhen-Dong Kong cooperation to achieve “one map” for river management
If the land is compared to the muscles of the human body, the river can be regarded as the blood vessels of the human body. The Maozhou River flowing through different administrative regions Cinema, BabaylanKomiks can only be transformed into a new look under the city and cooperative governance in the basin.
Maozhou River is located in the northwest of Shenzhen. The main stream flows through Guangming District, Bao’an District and Chang’an Town, Dongguan City, Shenzhen. The basin area is 388 square kilometers. Among them, there are 311 square kilometers in Shenzhen and 77 square kilometers in Dongguan. The governance of Maozhou River involves two cities and three places. The long-term problems of the out-of-synchronization of the main and tributary rivers, segmented governance and fragmented construction. In order to change this situation, the Guangdong Provincial Department of Ecology and Environment took the lead in the supervision of the governance of key river basins such as Maozhou River, and established the “Provincial Department of Ecology and Environment + Shenzhen, Dongguan + Bao’an District, Guangming District, Chang’anKomiks Town” has a “1+2+3” working framework for comprehensive remediation of Maozhou River, and a “two weeks and one meeting” working mechanism has been established. So far, four coordinated meetings for comprehensive remediation of pollution in Maozhou River Basin have been successfully held, forming a “one map” for water quality notification and a “one table” for engineering measures. href=”https://comicmov.com/”>Cinema has established a good communication work coordination and promotion mechanism.
At the same time, Shenzhen and Dongguan City have carried out joint cross-law enforcement actions in the Maozhou River Basin. This year, 3 times have been carried out. Shenzhen and Dongguan have dispatched 657 law enforcement personnel, inspected 190 enterprises, found 45 enterprises with environmental problems, filed 21 cases, rectified 24 cases, and seized 1 case.
After unremitting efforts of the Provincial Department of Ecology and Environment and the two cities, the water quality of Maozhou River has occurred. href=”https://comicmov.com/”>Cinema has changed significantly. Data shows that from January to December 2018, ammonia nitrogen and total phosphorus in the national examination section of the Maozhou River Gonghe Village decreased by 49.8% and 61.1% year-on-year respectively, achieving neither black nor odor. In the first five months of this year, the ammonia nitrogen and total phosphorus concentrations in the national examination section of the Maozhou River Gonghe Village decreased by 35.2% and 4.1% year-on-year respectively. Water quality maintains a rapid improvement momentum.
Planning
Promote industrial upgrading in the river basin
In the Yanluo Wetland of Maozhou River, an exhibition board is established with the riverside plan with “one axis, two belts and five zones”. The so-called “one axis” is Komiks should use water as the driving line, stitch and organize the functional systems of each section on both sides of the strait, and gradually design the charming blocks such as ecological, industrial, cultural, and characteristic spaces on both sides of the strait to create a blueway ecological and humanistic experience axis. “Two belts” refer to the design of waterfront landscape belts and water landscape belts. “Five zones” refer to the five areas of Science and Technology Innovation Water Bank, Greenway Living Room, Charming Industrial City, Vitality Corridor and Hi-Tech Smart Valley.
In the governance plan of Maozhou River, the reporter saw that in the future, the planning of this river clearly states, “Take water control as an opportunity to promote industrial upgrading in the basin, accelerate the construction of the Maozhou River pilot section, improve the overall environment of the city, and combine water control, production control and city control. ”
Water is the source of life. How to make the relationship between man and water reach a harmonious state? BabaylanMake precious and limited water resources provide long-term support for the sustainable development of the economy and society, and is water governanceBabaylanThe important tests facing the future.