A few days ago, the third phase of the sewage treatment project in Shaoxing began to enter the water. This means that in the first half of this year, Shaoxing will achieve the goal of expanding the daily sewage treatment capacity of 200,000 tons so that the total amount will reach 900,000 tons.
In the winter, the Bohai Sea is painted with a quiet and open outline. Occasionally there are egrets flying over it. Every day, hundreds of thousands of tons of sewage passes through the city and crosses the industrial area where it is tumbled, precipitated, oxidized, and will reach the clean water of environmental protection standards and eventually discharged to the Cao'e River.
In the warming up of environmental protection claims, the terminal of the Shaoxing water treatment system in the tidal flat traces the flow and evolution of the sewage in Shaoxing, undoubtedly presenting many meaningful details.
Expanded Sewage Treatment Roadmap
The third phase of the sewage treatment project is a project that was completed six months ahead of schedule.
“The government has requested several times to accelerate the construction of the third phase of the project.†The person in charge of Shaoxing Water Treatment Development Co., Ltd. stated that the centralized treatment capacity of the 700,000 tons of sewage in Shaoxing has approached the limit.
The operation of the Shaoxing Sewage Treatment Plant began in 2002. In that year, a 300,000-ton project was completed in the first phase. Shaoxing laid a 256-kilometer long drainage pipe for this purpose. The main industrial and domestic sewage in the urban and Shaoxing counties was included in the collection scope, and a regional centralized sewage treatment system was initially established.
During the past five years, the number of wastewater treatment plants that have been expanded has increased daily processing capacity to 700,000 tons. A group of data closely linked to this is: the collection rate of domestic sewage of the urban residents of Shaoxing is 73%, the collection rate of industrial wastewater is 96%, and the centralized sewage treatment rate is 79%.
Undoubtedly, the establishment of a complete "sewer" system has provided strong support for Shaoxing's water environment and even regional environmental protection. Then, why has the sewage treatment system in Shaoxing, which has leapt to the top of the nation, become overwhelmed after a few years?
More questions arise. In recent years, especially last year, Shaoxing has made a clear-cut standpoint: All companies, such as printing and dyeing, that cannot meet energy-saving and emission-reduction standards, will implement restrictions on production or even stop production. This also reduces the amount of wastewater produced by the company.
Where did the aggressive sewage come from? Municipal Environmental Protection Bureau has given a sewage treatment roadmap: the company's sewage outfall (home sewer) - piece of regional sewage branch pipe - industrial area (small district) sewage discharge director - urban sewage trunk - sewage treatment plant.
The increased sewage is generated in this process. The monitoring results of Water Treatment Development Co., Ltd. show that there are mainly two reasons for the increase of sewage in Shaoxing: Firstly, a large number of new factories have been added in recent years, and strict emission control has been carried out. The effective collection area of ​​sewage has increased substantially; Sewage works, the implementation of rain and sewage diversion of the original living quarters,
Some self-discharged sewage outlets are connected to the unified pipe network, and the collection of sewage is refined to increase the water intake.
The third phase of the continuation project was launched under these conditions. 700,000 tons, the emergence of this critical point means that after a short period of 5 years, Shaoxing's sewage collection and treatment has been universalized and quickly entered the era of refinement.
Environmental Protection Agency "attack"
Two seriously middle-aged men walked straight to the company’s chairman’s office, and then they lent a pass and asked to accompany them directly to the sewage outlet.
This scene, Shaoxing Water Treatment Development Co., Ltd. experienced two times last year. "This is the 'attack' of the State Environmental Protection Administration. If the chemical oxygen demand (COD) test fails, not only will we be rejected by one vote, even Shaoxing's environmental model cities, habitat cities and other titles will all be delisted." The relevant person in the company said.
In the tense atmosphere of environmental protection, the sewage treatment plant itself has also been placed on the cusp. Last year, the State Environmental Protection Administration investigated and disposed of a number of sewage treatment plants that were only used for decoration.
Shaoxing's safety clearance is not a fluke. In fact, the five-year exploration of the market for sewage treatment has also provided a unique “Shaoxing experience†for breaking the prevailing difficulties in sewage treatment. In line with the principle of “who is responsible for pollution and who pays for itâ€, Shaoxing ensures that a large amount of sewage is concentrated in the pipe network.
And now, new changes are brewing. It is reported that the state's new assessment system for sewage treatment plants is about to start. The new assessment will no longer be based solely on how to measure the amount of pollutants discharged from the final sewage treatment plant. Instead, it adds the number of wastewater in the wastewater treatment plant, how much electricity is used in the wastewater treatment plant, and how the pipeline network is laid.
In the face of the upcoming new assessment system, Shaoxing is once again in advance. According to the technical personnel in charge of the project, the third phase of the construction project took the United States, Germany and many other advanced technology and equipment. For example, as the main reservoir of the sewage treatment system, the world's most advanced thin-walled prestressed engineering technology is used to achieve no cracks and no penetration.
In the biochemical pool, Germany's intelligent oxygen supply technology makes the distribution of dissolved oxygen more reasonable and cuts peak electricity consumption, thus enabling the project to achieve energy conservation and consumption reduction.
And in the process of completing the construction, all people have sweated for it. “We are walking on the steel wire almost every day.†According to the person in charge of Water Treatment Development Co., Ltd., it is necessary to borrow a large amount of electricity, wind turbines, and other equipment from the Phase I continuation project adjacent to the first phase. Caused a period of suspension of operations, and from the consequences of causing disastrous.
The three-phase construction project was completed ahead of schedule and quality improvement was completed. Undoubtedly, it also benefited from the accumulated experience of the previous two phases of sewage treatment in Shaoxing.
Sewage treatment in the Qiantang River era
When the third phase of the project continued into the water, a group of workers were still busy on a clearing along the Cao'e River embankment. They are laying two 14-kilometer long sewage pipes here.
According to reports, the three-phase project with an investment of 1.3 billion yuan includes three parts, namely, the renewal project, the pipeline project, and the Qiantang River project. The pipeline project to be completed before the closing of Cao'ejiang sluice will be replaced by the temporary export of Cao'e River of Shaoxing's sewage to the permanent Qiantang River to achieve the Qiantang River era in Shaoxing.
At the same time, on the banks of the Qiantang River, Shaoxing is building a new sewage treatment plant to meet the sewage demand of industrial enterprises in the coastal areas.
After the completion of the third phase of the project, the daily sewage treatment capacity of Shaoxing will reach 1 million tons, which is also the largest industrial sewage treatment project in the country. The person concerned stated that for this figure, it must be viewed in a dialectical manner.
At the same time as the sewage treatment capacity continues to increase, Shaoxing also has deep hidden concerns. After 1 million tons of sewage treatment capacity, Shaoxing will no longer expand the wastewater treatment system again and again. The approval of the higher authorities indicates this point. The control of daily sewage discharge within 1 million tons will force Shaoxing to focus on the long-term and rationally adjust the industrial structure so as to control it at the source.
The person in charge of the Water Treatment Development Co., Ltd. also disclosed that, as an enterprise's emissions from the previous stages of the sewage treatment, the pretreatment must be strengthened. Judging from the current operating situation, the charges for Water Treatment Development Co., Ltd. are set at a price of RMB 1.2/ton according to the factory network. The cost of a single company's own sewage treatment is much higher than this, and this charge also puts pressure on its normal operation. Therefore, they are brewing a new sewage price system and using price as a lever to introduce punitive charges, etc., to control Shaoxing's sewage treatment in the process rather than just focusing on this terminal.
In the winter, the Bohai Sea is painted with a quiet and open outline. Occasionally there are egrets flying over it. Every day, hundreds of thousands of tons of sewage passes through the city and crosses the industrial area where it is tumbled, precipitated, oxidized, and will reach the clean water of environmental protection standards and eventually discharged to the Cao'e River.
In the warming up of environmental protection claims, the terminal of the Shaoxing water treatment system in the tidal flat traces the flow and evolution of the sewage in Shaoxing, undoubtedly presenting many meaningful details.
Expanded Sewage Treatment Roadmap
The third phase of the sewage treatment project is a project that was completed six months ahead of schedule.
“The government has requested several times to accelerate the construction of the third phase of the project.†The person in charge of Shaoxing Water Treatment Development Co., Ltd. stated that the centralized treatment capacity of the 700,000 tons of sewage in Shaoxing has approached the limit.
The operation of the Shaoxing Sewage Treatment Plant began in 2002. In that year, a 300,000-ton project was completed in the first phase. Shaoxing laid a 256-kilometer long drainage pipe for this purpose. The main industrial and domestic sewage in the urban and Shaoxing counties was included in the collection scope, and a regional centralized sewage treatment system was initially established.
During the past five years, the number of wastewater treatment plants that have been expanded has increased daily processing capacity to 700,000 tons. A group of data closely linked to this is: the collection rate of domestic sewage of the urban residents of Shaoxing is 73%, the collection rate of industrial wastewater is 96%, and the centralized sewage treatment rate is 79%.
Undoubtedly, the establishment of a complete "sewer" system has provided strong support for Shaoxing's water environment and even regional environmental protection. Then, why has the sewage treatment system in Shaoxing, which has leapt to the top of the nation, become overwhelmed after a few years?
More questions arise. In recent years, especially last year, Shaoxing has made a clear-cut standpoint: All companies, such as printing and dyeing, that cannot meet energy-saving and emission-reduction standards, will implement restrictions on production or even stop production. This also reduces the amount of wastewater produced by the company.
Where did the aggressive sewage come from? Municipal Environmental Protection Bureau has given a sewage treatment roadmap: the company's sewage outfall (home sewer) - piece of regional sewage branch pipe - industrial area (small district) sewage discharge director - urban sewage trunk - sewage treatment plant.
The increased sewage is generated in this process. The monitoring results of Water Treatment Development Co., Ltd. show that there are mainly two reasons for the increase of sewage in Shaoxing: Firstly, a large number of new factories have been added in recent years, and strict emission control has been carried out. The effective collection area of ​​sewage has increased substantially; Sewage works, the implementation of rain and sewage diversion of the original living quarters,
Some self-discharged sewage outlets are connected to the unified pipe network, and the collection of sewage is refined to increase the water intake.
The third phase of the continuation project was launched under these conditions. 700,000 tons, the emergence of this critical point means that after a short period of 5 years, Shaoxing's sewage collection and treatment has been universalized and quickly entered the era of refinement.
Environmental Protection Agency "attack"
Two seriously middle-aged men walked straight to the company’s chairman’s office, and then they lent a pass and asked to accompany them directly to the sewage outlet.
This scene, Shaoxing Water Treatment Development Co., Ltd. experienced two times last year. "This is the 'attack' of the State Environmental Protection Administration. If the chemical oxygen demand (COD) test fails, not only will we be rejected by one vote, even Shaoxing's environmental model cities, habitat cities and other titles will all be delisted." The relevant person in the company said.
In the tense atmosphere of environmental protection, the sewage treatment plant itself has also been placed on the cusp. Last year, the State Environmental Protection Administration investigated and disposed of a number of sewage treatment plants that were only used for decoration.
Shaoxing's safety clearance is not a fluke. In fact, the five-year exploration of the market for sewage treatment has also provided a unique “Shaoxing experience†for breaking the prevailing difficulties in sewage treatment. In line with the principle of “who is responsible for pollution and who pays for itâ€, Shaoxing ensures that a large amount of sewage is concentrated in the pipe network.
And now, new changes are brewing. It is reported that the state's new assessment system for sewage treatment plants is about to start. The new assessment will no longer be based solely on how to measure the amount of pollutants discharged from the final sewage treatment plant. Instead, it adds the number of wastewater in the wastewater treatment plant, how much electricity is used in the wastewater treatment plant, and how the pipeline network is laid.
In the face of the upcoming new assessment system, Shaoxing is once again in advance. According to the technical personnel in charge of the project, the third phase of the construction project took the United States, Germany and many other advanced technology and equipment. For example, as the main reservoir of the sewage treatment system, the world's most advanced thin-walled prestressed engineering technology is used to achieve no cracks and no penetration.
In the biochemical pool, Germany's intelligent oxygen supply technology makes the distribution of dissolved oxygen more reasonable and cuts peak electricity consumption, thus enabling the project to achieve energy conservation and consumption reduction.
And in the process of completing the construction, all people have sweated for it. “We are walking on the steel wire almost every day.†According to the person in charge of Water Treatment Development Co., Ltd., it is necessary to borrow a large amount of electricity, wind turbines, and other equipment from the Phase I continuation project adjacent to the first phase. Caused a period of suspension of operations, and from the consequences of causing disastrous.
The three-phase construction project was completed ahead of schedule and quality improvement was completed. Undoubtedly, it also benefited from the accumulated experience of the previous two phases of sewage treatment in Shaoxing.
Sewage treatment in the Qiantang River era
When the third phase of the project continued into the water, a group of workers were still busy on a clearing along the Cao'e River embankment. They are laying two 14-kilometer long sewage pipes here.
According to reports, the three-phase project with an investment of 1.3 billion yuan includes three parts, namely, the renewal project, the pipeline project, and the Qiantang River project. The pipeline project to be completed before the closing of Cao'ejiang sluice will be replaced by the temporary export of Cao'e River of Shaoxing's sewage to the permanent Qiantang River to achieve the Qiantang River era in Shaoxing.
At the same time, on the banks of the Qiantang River, Shaoxing is building a new sewage treatment plant to meet the sewage demand of industrial enterprises in the coastal areas.
After the completion of the third phase of the project, the daily sewage treatment capacity of Shaoxing will reach 1 million tons, which is also the largest industrial sewage treatment project in the country. The person concerned stated that for this figure, it must be viewed in a dialectical manner.
At the same time as the sewage treatment capacity continues to increase, Shaoxing also has deep hidden concerns. After 1 million tons of sewage treatment capacity, Shaoxing will no longer expand the wastewater treatment system again and again. The approval of the higher authorities indicates this point. The control of daily sewage discharge within 1 million tons will force Shaoxing to focus on the long-term and rationally adjust the industrial structure so as to control it at the source.
The person in charge of the Water Treatment Development Co., Ltd. also disclosed that, as an enterprise's emissions from the previous stages of the sewage treatment, the pretreatment must be strengthened. Judging from the current operating situation, the charges for Water Treatment Development Co., Ltd. are set at a price of RMB 1.2/ton according to the factory network. The cost of a single company's own sewage treatment is much higher than this, and this charge also puts pressure on its normal operation. Therefore, they are brewing a new sewage price system and using price as a lever to introduce punitive charges, etc., to control Shaoxing's sewage treatment in the process rather than just focusing on this terminal.
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