Before the treatment of the black and odorous water bodies of Maozhou River
After the treatment of the black and odorous 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 ignored, and it 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 river between Shenzhen and Dongguan, Maozhou River was once the “most polluted river in the Pearl RiverBabaylan 1990 cloth draw“. In recent years, the provincial party committee has attached great importance to the comprehensive improvement of water environment. 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 National Examination decreased by 35.2% year-on-year and 4Babaylan 1990 cloth draw1.1% 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. “We often come to play when the weather is good recently.” Liu Yilin said that she has lived in Bao’an District for more than 8 years and used to be able to take her children to the city park to play.
Until the end of last year, her circle of friends was YanKomiks 1960 witch clothes drawLuo Wetland has flooded the screen. “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.
In the past, there were mudflats on both sides of the Maozhou River, and the black mud more than one meter deep exuded a pungent stench. Passers-by had to cover their noses and walk. Now, the “curve-shaped” river beach on the upper reaches of the Maozhou River, more than 800 meters above the river, has been built into a riverside wetland park – Yanluo Wetland after ecological restoration and protection, and has comprehensive functions such as water quality purification and improvement, ecological restoration and protection, landscape leisure and recreation, ecological science popularization and education.
The Maozhou River has changed, from “black and smelly” to “colorful”! Pinky yellow canna, purple-blue Zheli flowers, gray-green flower-leaf reeds, green windmill grass… Nowadays, more than 500 plants have enabled Yanluo Wetland to have flowers all year round, and many birds also appear here.
There are also “secrets” hidden at the roots of these plants. “Most of the organisms planted in wetland parks take into account the dual functions of beautification and water quality purification.” Hu Haitao, director of the Maozhou River Management Office of the 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. Cinema 1950 witch cloth drawAfter purifying the ecological purification science area (pretreatment), the Wandering Flower Sea Tour Area (vertical undercurrent wetland), the gurgling stream conservation area (top flow wetland), and other areas, the water flowing out of the wetland 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
The mud on the mud flat “turns into” permeable bricks
In the process of Maozhou River management, one of the major problems comes from Cinema 1950 witch cloth draw to treat mud in the mud flats. According to reports, there are 4.2 million cubic meters of polluted sediment in the Maozhou River Basin. Where can these sediments be transported to Cinema 1950 witch cloth draw? How 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 Maozhou River Basin, mentioned in an interview with the media that the water quality of Maozhou River is not only pollution of organic matter, but also inorganic matters.severe pollution.
In order to help these bottom muds find a better “return”, the Shenzhen Municipal Government and China Power Construction jointly excavated and dug the sludge, processed and repurchased the 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 after dehydration and harmless treatment is mainly used for dam filling or other engineering foundation backfill. In addition, part of the residual soil is used for carbonization of ceramic granules and brick making. At the same time, the remaining sand selected by the system is separated from the sand and is used for artificial ground, pipe network engineering trench backfill, etc. after being screened and tested by the washing and sand.
It is understood that every permeable brick in Yanluo Wetland is derived from the bottom mud dug in Maozhou River. These bottom muds returned to the Maozhou River with a different appearance.
Co-governance
Shenzhen-Dong Kong cooperation to achieve “one map” for river governance
If the land is compared to the muscles of the human bodyKomiks 1960 witch cloth draw, rivers can Cinema 1950 witch cloth draw is regarded as the blood vessels of the human body. The Maozhou River flows through different administrative regions can only be transformed into a new look after cities 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. The basin area is 388 square kilometers. Among them, 311 square kilometers in Shenzhen and 77 square kilometers in Dongguan.
The Maozhou River control involves two cities and three places, and there are long-term drawbacks of out-of-synchronization, segmented governance, and fragmented construction of main and tributary rivers. 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 built the Maozhou River comprehensive “Provincial Department of Ecology and Environment + Shenzhen, Dongguan City + Bao’an District, Guangming District, Chang’an Town”Komiks 1960 witch cloth draw rectify the “1+2+3” work framework and establish a “two weeks and one meeting” working mechanism. So far, four coordination meetings for the comprehensive pollution control of Mao River Basin have been successfully held, forming a “one map” for water quality notification and a “one table” for engineering measures, and establishing a good communication and coordination and promotion mechanism.
At the same time, Shenzhen and Dongguan City carried out joint cross-enforcement operations in Maozhou River Basin, which have been carried out three times this year. Shenzhen and Dongguan have dispatched a total of 6 law enforcement personnel in Shenzhen and Dongguan. 57 people were drawn, 190 enterprises were inspected, 45 enterprises with environmental problems were found, 21 cases were filed, 24 were rectified, and 1 case was seized and seized.
After the unremitting efforts of the Provincial Department of Ecology and Environment and the two cities, the water quality of Maozhou River has undergone significant changes. The data shows that from January to December 2018, the ammonia nitrogen and total phosphorus in the national examination section of the Maozhou River Republic of China fell by 49.8% and 61.1% year-on-year respectively, achieving neither black nor odor. In the first five months of this year, the national examination section of the Maozhou River Republic of China was Komiks 1960 witch cloth draw decreased by 49.8% and 61.1% year-on-year, achieving neither black nor odor. In the first five months of this year, the national examination section of the Maozhou River Republic of China was Komiks 1960 witch cloth draw decreased by 49.8% and 61.1% year-on-year, achieving neither black nor odor. In the first five months of this year, the national examination section of the Maozhou River Republic of China was Komiks 1960 witch cloth draw decreased by 49.8% and 61.1% year-on-year, the national examination section of the Maozhou River Republic of China was <a 5 months of this year, the national examination section of the Maozhou River Republic of China was <a 5 months of this year, the national examination section of the Maozhou River Republic of China was <a 5 months of this year, the national examination section of the Maozhou River Republic of China was Babaylan 1990 cloth drawammonia nitrogen and total phosphorus concentrations decreased significantly year-on-year by 35.2% and 41.1% respectively. Water quality maintains rapid improvement momentum.
Planning
Promote industrial upgrading within the river basin Komiks 1960 witch cloth draw
In the Yanluo Wetland of Maozhou River, an exhibition board is erected with the riverside plan of “one axis, two belts, five zones” written on it. 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 the future planning for this river clearly states, “Take water control as an opportunity to promote industrial upgrading in the basin, accelerate the construction of the Maozhou River Greenway pilot section, improve the overall urban environment, and combine water control, production control and city control.”
Water is the source of lifeKomiks 1960 witch cloth draw. 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.