Cinema 1950 witch cloth drawBefore the treatment of the black and smelly water bodies of Maozhou River
After the treatment of the black and smelly water bodies of Maozhou River
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 ignoredKomiks 1960 witch cloth draw stream, she is enough to be written into the development history of water control concepts and water control technology in Guangdong and even China. As the boundary between Shenzhen and Dongguan, the 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 three stages of effective governance, Shenzhen and Dongguan cooperated to fight, and the water quality of Maozhou River has been 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 began to be fully constructed. The Maozhou River Basin will combine water management, city management and production management to 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
Midsummer Cinema 1950 witch cloth draw, 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, brought his mother and two children to visit Yanluo Wetland. “Latest daysBabaylan 1990 clothes drawWhen we get better, we often come over to play. “Liu Yilin said that she lived in Bao’an District for more than 8 years and used to be able to take her children to play in the city park.
Until the end of last year, her circle of friends was flooded with Yanluo Wetland. “Many friends came to play in the wetlands and took short videos and photos to upload them to their circle of friends. “When I first came to Yanluo Wetland, Liu Yilin was a little unbelievable about his eyes. Babaylan 1990 cloth draw
In the past, MaoBabaylan 1990 cloth drawBabaylan 1990 cloth drawBabaylan 1990 cloth drawBlack silt on both sides of the river, and the black silt more than one meter deep is exuding a pungent stench, and passers-by have to cover their noses. Now, the “curtain-shaped” river beach more than 800 meters on the upper reaches of Maozhou River has been built into a riverside wetland park after ecological restoration and protection – Yanluo Wet href=”https://comicmov.com/”>Komiks 1960 witch cloth draw land has comprehensive functions such as water purification and improvement, ecological restoration and protection, landscape leisure and recreation, ecological science popularization and education.
Maozhou River has changed, from “black and smelly” to “colorful”! Pinky yellow cannas, purple-blue Zaoli flowers, gray-green flower leaves and reeds, and verdant windmill grass… Nowadays, more than 500 plants have enabled Yanluo Wetland to have flowers all seasons, and many birds also appear here.
The roots of these plants are still hidden. “Most of the creatures planted in wetland parks take into account the dual functions of beautification and water purification. ” Hu Haitao, director of Maozhou River Management Office of the River Management Center of Shenzhen Water Affairs Bureau, introduced that after 18,000 cubic meters of treatment every day, Maozhou River sewage from Komiks 1960 witch cloth draw enters the wetland park. After purifying the ecological purification science popularization area (pretreatment), the Wandering Flower Sea Tour Area (vertical undercurrent wetland), the gurgling stream conservation area (top flow wetland), and other areas, it will be cleaned from the wetland. drawThe water flowing out of the park can meet the IV standard of surface water, thereby replenishing and improving the water quality in the middle and upper reaches of the Maozhou River.
Innovation
Tidal flat silt “turned into” permeable bricks
In the process of Maozhou River management, one of the major problems stems from the treatment of the silt in the mudflats. According to reports, the Maozhou River Basin has a pollution base of 4.2 million cubic meters.mud. Where can these sediments be transported? Babaylan 1990 cloth drawHow to deal with it? Will it cause secondary pollution? It is an inevitable part of the management of Maozhou River.
Tao Ming, director of the Office of the Maozhou River Basin Comprehensive Water Environment Improvement Command of China Power Construction, mentioned in an interview with the media that the water quality of Maozhou River is not only pollution of organic matter, but also severe pollution of inorganic matters.
In order to find a better “residence” of these bottom muds, the Shenzhen Municipal Government worked with China Power Construction to excavate, process and reuse these sludge.
Now there are many dredgers walking along the Maozhou River. After these dredgers carried out environmental protection and dredging of the river, they sent the sludge through pipelines to the Maozhou River No. 1 subsilt treatment plant of China Power Construction Maozhou River on the bank of the 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 sediments returned to the Maozhou River in another aspect.
Co-governance
Shenzhen-Dong Kong cooperation to achieve “one map” for river management
If Komiks 1960 witch cloth draw compares the land to the muscles of the human body, rivers can be regarded as the blood vessels of the human body. The Maozhou River, which flows through different administrative regions, 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. Its main stream flows through Guangming District, Bao’an District and Chang’an Town, Dongguan City, with a basin area of 388 square kilometers. Among them, Cinema 1950 witch cloth draw311 square kilometers in Shenzhen and 77 square kilometers in Dongguan.
The governance of Maozhou River involves two cities and three places, and has existed for a long timeThe disadvantages of out-of-synchronization of main and tributary flows, segmented management, and fragmented construction. In order to change this situation, the Guangdong Provincial Department of Ecology and Environment took the lead in carrying out supervision of the governance of key river basins such as Maozhou River, and established a “1+2+3” working framework for the comprehensive improvement of Maozhou River with the “Provincial Department of Ecology and Environment + Shenzhen, Dongguan City + Bao’an District, Guangming District, and Chang’an Town”, and established a “two weeks and one meeting” working mechanism. So far, Komiks 1960 witch cloth draw has been successfully held for four comprehensive pollution control coordination meetings in Maozhou River Basin, forming a “one map” for water quality notification and engineering measures “one table” to establish a good communication work coordination and promotion mechanism. At the same time, Shenzhen Komiks 1960 witch cloth draw City and Dongguan City carried out joint law enforcement operations in the Maozhou River Basin. It has been carried out three times this year. Shenzhen and Dongguan dispatched 657 law enforcement personnel, inspected 190 enterprises, and found that there were 45 enterprises with environmental problems, 21 cases were filed, 24 cases were rectified, and 1 case was seized and seized.
After the unremitting efforts of the Provincial Department of Economy and Environment and the two cities, the water quality of Maozhou River has undergone significant changes. Data shows that from January to December 2018, the ammonia nitrogen and total phosphorus in the national examination section of Maozhouhe Gonghe Gonghe decreased by 49.8% and 61.1% respectively, achieving neither black nor odor. In the first five months of this year, the total phosphorus concentrations in the national examination sections of Maozhouhe Gonghe Gonghe National Examination decreased significantly by 35.2% and 41.1% year-on-year respectively. Keep water quality fastImprove momentum.
Planning
Promote industrial upgrading in the river basin
In the Yanluo Wetland of Maozhou River, a display board is erected with the Cinema 1950 witch cloth draw planning along the river with “one axis, two belts, and five zones”. The so-called “one axis” means to use water as the driving line, sew and organize the functional systems of each section on both sides of the strait, and gradually design charming blocks such as ecology, industry, culture, 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. The “five zones” refer to five areas: Science and Technology Innovation Waterfront, Greenway Living Room, Charming Industrial City, Vitality Corridor and Hi-Tech Smart Valley. In the Maozhou River governance plan, the reporter saw that in the future, the planning of this river clearly states that “taking water control as an opportunity to promote industrial upgrading in the basin in the Basin, accelerate the construction of the Maozhou River Greenway pilot section, improve the overall urban environment, and achieve water control. drawThe combination of management of production and management of cities. “
Water is the source of life. How to make the relationship between people and water reach a harmonious state and make precious and limited water resources provide long-term support for the sustainable development of the economy and society is an important test facing water governance in the future.