Waste incineration power generation to implement new regulations next year

From January 1 next year, the supervision of the domestic waste incineration power generation industry will be stricter and more standardized. The waste incineration plant will install and use automatic monitoring equipment in accordance with regulations, and be networked with the monitoring equipment of the competent ecological environment department. The automatic monitoring data can be used as evidence to determine whether there are environmental violations in the waste incineration plant. More than 400 domestic waste incineration power plants in the country will all disclose 5 conventional pollutant discharge data to the society.

Recently, the first batch of "I am an environmental compliance" commitment release activity was held in Hangzhou. The heads of 13 domestic waste incineration power generation companies promised that any person is welcome to supervise at any time, and the incineration plant flue gas emissions will be announced on their official websites And furnace temperature automatic monitoring data. In the future, China Environmental Protection Industry Association will release a list of promised enterprises in batches and build an industry self-regulatory service platform.

From January 1 next year, the "Administrative Regulations on the Application of Automatic Monitoring Data for Domestic Waste Incineration Power Plants" (hereinafter referred to as the "Administrative Regulations") will be officially implemented. According to regulations, the waste incineration plant should install and use automatic monitoring equipment and be networked with the competent ecological environment department. The automatic monitoring data can be used as evidence to determine whether there are environmental violations in the waste incineration plant. After the implementation of the new regulations, more than 400 domestic waste incineration power plants across the country will all disclose five conventional pollutant discharge data to the society.

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Waste incineration plant unlike incineration plant

Hangzhou currently has a total of 17 domestic waste disposal facilities, including 8 incineration plants. Hangzhou Jiufeng Refuse Incineration Power Plant is the largest incineration plant in Hangzhou's urban area. It is located about 20 kilometers west of the West Lake and mainly deals with "other waste" in the western part of the city.

Being in the middle of it, this waste incineration plant gives people an intuitive feeling that is more like a standard operating company, quiet and free of odor. Only the closed garbage trucks driving on the roads of the plant from time to time, and the white water vapor cooling tower in the southwest corner revealed the identity of the plant.

The largest gray building in the factory area is the core of the incineration plant, which contains garbage storage bins, incinerators and a series of flue gas and sewage treatment facilities. After the garbage is sent to the incineration plant, it is dumped into the garbage bin through the unloading platform and fermented for five to seven days. The moisture is filtered to increase the heat value of the garbage for incineration. The garbage leachate generated during the period is input to the leachate station through the lower pipe of the garbage bin, which is harmless. Chemical treatment, in the end, all the water is reused for plant production and greening.

After the waste fermentation and filtration is completed, the workers in the control room above the waste bin operate the steel grab to grab the waste and put it into the incinerator. The heat generated by the incineration is converted into high-temperature steam, which causes the generator to generate electricity. At the Jiufeng Waste Incineration Power Plant, each ton of waste incineration can generate about 500 kilowatt-hours of electricity. The plant is designed to handle 3,000 tons of domestic waste per day. Through the year, nearly 400 million kilowatt-hours of electricity can be generated through waste incineration, which can provide about 200,000 households. Use electricity for one year.

"Power generation is not the main function of a waste incineration power plant, and its greatest utility lies in environmental protection." Yu Kunzhang, deputy general manager of Everbright Environmental Protection Energy (Hangzhou) Co., Ltd., introduced that nearly 90% of the waste produced by incineration can be consumed and the slag produced It can also be used to make recycled bricks, which greatly saves the land resources originally used for landfill waste.

Visit 2

Two formulas for phase change monitoring of thorium incinerator

Yu Kunyu introduced that the flue gas and hazardous waste generated after the incineration of garbage pass through a series of processing facilities such as semi-dry reaction tower, bag filter, and wet washing tower, and finally achieve harmless emissions.

"Particulate matter 0.12mg / m3, sulfur dioxide 1.12mg / m3 ..." On an electronic screen at the door of Jiufeng Waste Incineration Power Plant, five items of smoke emission data were recorded in real time. Installing automatic monitoring equipment, erecting an electronic display at the door of the plant to publish emission data, and connecting the data with the ecological environment department is a common practice of waste incineration power plants at present, covering 401 existing waste incineration plants nationwide.

In addition to the five items of flue gas emission data on the screen, there is also an item of "furnace temperature". Around 9 am on the 12th, data from Hangzhou Jiufeng Waste Incineration Power Plant showed that the temperature of the plant's incinerator was 1044 ° C. The "Administrative Regulations" to be implemented require that under normal operating conditions, the waste incineration plant must ensure that the 5-minute average of the measured temperature in the incinerator's hearth is not lower than 850 ° C. A researcher from the South China Institute of Environmental Sciences of the Ministry of Ecology and Environment explained that according to the characteristics of the two formulas, which can be decomposed by staying at 850 ° C for two seconds, the temperature in the incinerator has become an effective monitoring method for dioxins.

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Open the factory to the public to solve the "neighborhood problem"

Hangzhou Jiufeng waste incineration power plant is a microcosm of many waste incineration power plants. Under the strict control of domestic environmental protection departments and related regulations, the environmental protection level of most waste incineration plants has been significantly improved. Paradoxically, in recent years, the "neighboring effect" of the domestic waste incineration industry is still prominent, and some local residents are worried about the negative impact of incineration of power plants on physical health and the environment, and they are protesting collectively.

"Many residents' knowledge of the waste incineration plant is still at the level of many years ago, and they thought that the waste incineration plant was just setting up a tent in a ravine, and the sky was full of black smoke and odor." Hangzhou Green Energy Environmental Power Generation Co., Ltd. Manager Lai Jiangang said. Therefore, many incineration power plants often encounter complaints from surrounding residents in the early stages of construction and operation.

In order to solve the problem of avoidance, Green Energy Environmental Power Generation Co., Ltd. adopted the strategy of “Please come in”. Lai Jiangang said that nearby residents once saw the "white smoke" of the chimneys of the cooling tower in the incineration plant and complained to the media. The company then invited residents and reporters to board the cooling tower in the plant to check. "In the pool of more than 3 meters, It's all tap water, and they can see to the end at a glance. They touched 'white smoke' with their hands to understand that it was water vapor. "Lai Jiangang said.

After this incident, Lai Jiangang realized the importance of publicizing the science of waste incineration. Afterwards, the company stipulated that security could not prevent two types of people from entering the factory at any time: inspectors of environmental protection departments and surrounding villagers, and they should actively provide hard hats for people entering the factory. In addition, they also invited teachers and students of the school to visit the domestic waste incineration power generation process and technology. This summer, Green Energy Environmental Power Generation Co., Ltd. has received more than 2,000 students.

With the new implementation of the “Hangzhou Municipal Waste Management Regulations” officially implemented in August this year, in the process of popularizing waste classification, more and more Hangzhou residents understand the end-of-life waste treatment facilities, including waste incineration power plants.

Wu Laijian just said that thanks to these measures, the company has encountered little protest in recent years.

The plutonium incineration plant will limit production or stop production if it exceeds the standard for 5 days within a month.

The domestic waste incineration power generation industry has been under control for a long time. In recent years, the regulation of this industry has become more stringent and standardized. In 2016, the waste incineration power generation industry was listed as the first batch of key industries to reach the standard for renovation, and it was the first landmark project to implement a comprehensive standard discharge plan. Two years later, the special rectification of the waste incineration power generation industry's compliance with emissions standards was officially included in the "7 + 4" action in the fight against pollution.

In early December, the Ministry of Ecology and Environment issued the "Administrative Regulations", which will be officially implemented from January 1 next year. After the implementation of the new regulations, more than 400 domestic waste incineration power plants, including particulate matter and nitrogen oxides, will be released to the public.

According to regulations, the waste incineration plant should install and use automatic monitoring equipment, network with the monitoring equipment of the competent ecological environment department, and ensure that the automatic monitoring data is true and valid. The automatic monitoring data can be used as evidence to determine whether there are environmental violations in the waste incineration plant.

Within one natural day, the daily average data of automatic monitoring of particulate matter, nitrogen oxides, sulfur dioxide, hydrogen chloride, carbon monoxide and other pollutants emitted from any incinerator of the waste incineration plant, if there is one or more than the "standard for pollution control of domestic waste incineration" Or the local pollutant discharge standard limits can be regarded as exceeding the pollutant discharge standards. If it is verified that the exceeding of the standard is true, the competent ecological environment department shall order the rectification and issue a decision letter ordering the correction of illegal acts. For those who have exceeded the standard for more than 5 days within one month, the production shall be restricted or rectified in accordance with the law.

If an enterprise falsifies or falsifies the automatic monitoring data or interferes with the automatic monitoring equipment's discharge of pollutants, which constitutes a crime, the competent ecological environment department shall transfer it to the judicial organ in accordance with the law and hold it liable for criminal responsibility. Where a waste incineration plant is punished in accordance with the law for illegal acts such as pollutant discharge exceeding standards, it shall reduce or suspend the payment of additional subsidy funds for the national renewable energy price.

Wang Canfa, a professor at China University of Political Science and Law, believes that the promulgation of the "Management Regulations" will realize the all-weather environmental supervision of various waste incineration power plants, crack down on illegal activities such as excessive discharge of pollutants and fraud, and force the industry to survive. At the same time, it can promote waste incineration power generation enterprises to practice “internal skills”, improve environmental management level, and improve the environmental governance system, and promote their transformation from “I want to abide by the law” to “I want to abide by the law”, and effectively establish a good social image of the industry and promote the industry High-quality development.