After the "13th Five-Year plan" black and smelly water treatment battle, the problem of the dry season is basically solved, the next is the turn of the rainy season.
The Ministry of Ecology and Environment recently issued a notice on analyzing pollution intensity during flood season and promoting solutions to Prominent water environment problems, requiring local governments to monitor and analyze pollution intensity during flood season based on local conditions.
Based on these monitoring and analysis data, the Ministry of Ecology and Environment will regularly publish a list of the top 50 state-controlled sections and their responsible areas in flood season pollution intensity.
For the outstanding problems on the list, the Ministry of Ecology and Environment will implement the list management, tracking supervision and selling number by number in accordance with the relevant requirements of the Working Mechanism for Finding and Promoting Solutions to Water Ecological And Environmental Problems (Trial).
At the same time, the Ministry of Ecology and Environment also called on local governments to resolutely investigate and punish all kinds of illegal acts of discharging pollutants during the flood season, and disclose them to the public.
1. The Ministry of Ecology and Environment will rank pollution intensity in flood season
On February 21, the official account of the Ministry of Ecology and Environment published an article titled "The Ministry of Ecology and Environment guides all regions to carry out analysis of flood season pollution intensity and promote the solution of prominent water environmental problems", announcing the news of the upcoming flood season pollution control.
The document was issued because after several years of efforts, the quality of the country's water environment has significantly improved. However, pollution from non-point sources has become a major problem in some areas, and in some places the problem of "filth and dirt collection" during the dry season and "collecting and collecting small amounts by themselves" during the rainy season is prominent.
Flood season pollution how to control? The first is to find out the base. The Ministry of Ecology and Environment required all regions to carry out pollution intensity analysis during the flood season.
So-called "flood season pollution intensity" refers to a section of flood season primary pollutants concentration and objective concentration limit ratio, it mainly reflects the monitoring of flood season gap between pollution and water quality goals, is conducive to accurately identify the water environment quality is better at ordinary times, flood season pollutant concentration rise sharply, distinguish the related responsibility administration of non-point source pollution prevention.
The term refers to the periods of the year when rivers flood regularly and when they rise until they fall back to a certain level.
How is it monitored? According to the requirements of the Ministry of Ecology and Environment, local governments should carry out monitoring and analysis of pollution intensity in flood season according to local conditions by selecting permanganate index, ammonia nitrogen, total phosphorus or other characteristic indexes convenient for monitoring, focusing on the fact that the water quality in flood season is worse than the section of class ⅴ river or the section of class ⅲ drinking water source.
That is to say, the main monitoring object is the river section inferior to class ⅴ, and the drinking water source inferior to class ⅲ. The key indicators are permanganate index, ammonia nitrogen and total phosphorus.
In terms of specific work, the national control section of automatic water quality monitoring station has been built. It is necessary to make full use of automatic monitoring data to identify primary pollution factors and their maximum pollution concentration in flood season, and carry out pollution intensity analysis in flood season.
The national control section of automatic water quality monitoring station has not been built, so it is analyzed by referring to manual monitoring data.
For sections controlled by the province and below, monitoring and analysis can be carried out by referring to the practices of sections controlled by the state.
This means that both national and provincial controlled sections, automatic stations and manual stations should be monitored.
Based on these monitoring data, the Ministry of Ecology and Environment will regularly publish a list of the top 50 state-controlled sections and their responsible areas in flood season.
For the outstanding problems on the list, the Ministry of Ecology and Environment will implement the list management, tracking supervision, and sales number one by one in accordance with the relevant requirements of the Working Mechanism for Finding and Promoting Solutions to Water Ecological and Environmental Problems (Trial).
At the same time, the Ministry of Ecology and Environment also put forward three requirements for governance:
1. Encourage local governments to incorporate flood season pollution intensity into the horizontal ecological protection compensation mechanism of river basins, and effectively promote upstream and downstream collaborative governance;
2. For areas with high pollution intensity in flood season and relatively backward prevention and control of non-point source pollution in urban and rural areas, urge and guide local authorities to conscientiously organize source tracing and investigation, and solidly control non-point source pollution in urban and rural areas;
3. All kinds of violations of laws and regulations concerning sewage discharge during the flood season will be investigated and dealt with firmly in accordance with the law and made public.
To sum up briefly, for flood season pollution, the first step is monitoring, the second step is control.
One of the important starting point, is the flood season pollution intensity of the top 50 national control section ranking.
Based on the ranking, prominent problems will be supervised, illegal sewage discharge will be made public, and areas with high intensity may have to make horizontal ecological compensation to those with low intensity.
For example, the compensation for the Xin 'an River basin in Anhui and Zhejiang provinces often involves hundreds of millions of yuan, so it is estimated that no one wants to increase the compensation cost.
Historically, the ranking of pollutant quality has always been an important tool for the Ministry of Ecology and Environment. The previous two rankings, "Surface Water Quality Ranking" and "National Urban Air Quality Index Ranking", have played an important role in the treatment of water pollution and air pollution.
This time, the Ministry of Ecology and Environment in flood season pollution control and offering a ranking of this "big move", I believe will also play a significant role.
As for the Ministry of Ecology and Environment's move, some people commented: this is an important breakthrough in water pollution control!
2. "Hide dirt and dirt" in dry season, "save and collect" in rainy season
Why is pollution control in flood season on the agenda? Because this problem has become a water pollution control pain point and difficulty.
When it rains, the capacity of the ecological environment should increase, but as a result, pollutants also increase, which leads to the worsening of black smell.
I remember once attending a meeting of water conservancy system. I heard an expert say that every time it rained heavily, polluting enterprises in the upstream always took the opportunity to discharge pollutants, resulting in serious water pollution and death of fish and shrimp in the downstream. If the enterprise wants to steal the discharge, can it not be concentrated in a period of time together? So the damage to downstream water quality can be a little less.
This sounds a bit of black humor, but truly reflects the helplessness of reality.
There have also been a number of environmental pollution incidents caused by heavy rain.
In May last year, Jiangsu province also sent a special inspection team to xuzhou, Huai 'an and Suqian to carry out pre-flood supervision because of the serious deterioration of water quality during the flood season.
For these problems, the Ministry of Ecology and Environment has long noticed.
In March 2021, the Ministry of Ecology and Environment held a regular press conference in March, and the chief engineer of the Ministry of Ecology and Environment and the director of the Department of Water Ecology and Environment said that there were three shortcomings in the treatment of black and smelly water bodies, one of which was "severe rain water pollution in the early stage".
"Some local stormwater networks' collect dirt and dirt 'in the dry season, and' collect and collect garbage 'in the rainy season. Garbage is dumped at random in some urban and rural areas, which leads to serious pollution in the flood season." He said.
In his view, there are reasons for both inadequate infrastructure and the chaotic management of some of our cities.
All these problems will be the focus of the 14th Five-Year Plan.
In fact, last November, the Ministry of Ecology and Environment tried to publish a ranking of the country's pollution intensity during the flood season.
On November 1, the Ministry of Ecology and Environment released the national water environment quality in the first three quarters of the year. Annex 3 is the section list of the top 50 pollution intensifiers in flood season from January to September 2021.
According to the situation in the first 10 months of 2021, the top 50 state-controlled sections with high pollution intensity in flood season are distributed in 21 provinces, showing a relatively common range.
Among them, yunnan (9), Shanxi (5), Jiangxi (5) have more sections.
Among many sections, the primary pollutant in Jiangkou Village section, Enshi Prefecture, Hubei Province is total phosphorus, whose assessment target limit is 0.10mg/L, the maximum concentration in flood season is 3.30mg/L, and the pollution intensity in flood season reaches 33.0.
3. Pollution control in flood season will become a "new track" for environmental protection industry
The Ministry of Ecology and Environment began to control the flood season pollution, what is the impact on the environmental protection industry?
The first is definitely better regulation.
Flood season pollution, one of the reasons is actually sewage treatment plant overflow. During the rainy season, the inflow of sewage treatment plants increases, leading to overload operation, often resulting in sewage treatment plant overflow.
This factor is often one of the key factors to be considered in flood season pollution control. Last year, for example, when The city of Xingtai strengthened the prevention and control of water pollution during the flood season, it required "strengthening the supervision and inspection of sewage treatment plants, ensuring the normal and stable operation of sewage treatment facilities, urging sewage treatment plants to increase the amount of water collected in advance, freeing up pipeline surplus, increasing the operating load, and achieving full collection and treatment of sewage".
Secondly, for environmental protection enterprises, this is also a business opportunity.
Flood season pollution control is not a new thing, but it is the first time that such attention has been given to it.
Reference to past experience, after the beginning of the ranking, local attention to this problem tends to be greatly increased.
And once the place begins to pay attention to, will certainly promote the governance and solution of this problem.
That is to say, the ranking of pollution intensity in flood season can help release the demand for environmental protection.
The main targets of treatment are non-point source pollution, including livestock and poultry farms along the river, industrial agglomeration areas, sewage discharge enterprises, tailings ponds, and sewage treatment plants.
Controlling flood season pollution will promote these enterprises to strictly implement discharge standards, improve the collection and treatment rates of sewage, and ensure that all sewage can be collected and completely treated in place.
This, of course, will also become an opportunity for environmental enterprises.
In fact, some environmental protection enterprises have seen the business opportunities, and made the layout in advance.
For example, as early as 2019, CIEC reached an agreement with Professor Wang Kaijun's team from tsinghua University's School of Environment on the treatment of overflow pollution as one of the goals of cooperation, and set up a research center and held a preparatory meeting.
Based on such a layout goal, The holding will also be under the wing of Wenhua Environment. Because the integrated multi-effect clarification system developed by Wenhua Environment can meet the application requirements of water supply and sewage in more than a dozen scenarios and solve the problem of efficient treatment of incremental water under overflow discharge.
In the future, with the strong promotion of national policies, it is believed that more environmental protection enterprises will devote themselves to the treatment of overflow pollution.
Flood season pollution control will also become one of the emerging track of environmental protection industry. (Note: original has been deleted)