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Beijing maintains single-digit sulfur dioxide concentration for three consecutive years

2020-09-21 09:36    page view:

Guide: Launch of the "Clean Coal and Nitrogen Reduction" project, contribute about 40% to air quality improvement

  Launch of the "Clean Coal and Nitrogen Reduction" project, contribute about 40% to air quality improvement

  Beijing maintains single-digit sulfur dioxide concentration for three consecutive years

  News from our newspaper (Reporter Wang Bin) Since the implementation of the "Clean Air Action Plan" in Beijing in 2013, the city has vigorously promoted measures such as "coal to clean energy" and "low-nitrogen conversion" to significantly reduce coal usage and reduce sulfur dioxide, Emissions of pollutants such as nitrogen oxides. A reporter from the Beijing Youth Daily learned from the Municipal Bureau of Ecology and Environment that as of 2019, the city’s nitrogen dioxide concentration had fallen to 37 micrograms/m3, reaching the standard; the annual average concentration of sulfur dioxide was only 4 micrograms/m3, and it has been maintained at the level for three consecutive years. It has reached the international advanced level and basically solved the problem of coal-burning pollution. According to relevant assessments, the city’s “cleaning coal and reducing nitrogen” project contributes about 40% to the improvement of air quality.

  Recently, a reporter from Beijing Youth Daily came to Beijing Shouxing Yongan Heating Co., Ltd., which is located in Daxing District. This old factory built in 1994 has a heating area of ​​more than one million square meters. In the past, the use of coal-fired boilers for heating not only consumed a large amount of coal, but also caused serious environmental pollution. According to an old worker's recollection, as soon as fall in previous years, he had to start preparing for coal burning in winter, and had to pick up coal in the middle of the night every day. Sometimes when you shovel coal overnight, your face is all black, leaving only white teeth. The entire factory area is full of dust, and the ground is covered with small black spots, which always gives people the impression of being dirty.

  How serious can the pollution emissions caused by coal be? According to statistics, the annual emission of nitrogen oxides is about 90 tons; the emission of sulfur dioxide is about 255 tons. These are the culprits in the formation of PM2.5. In order to reduce energy consumption, Beijing vigorously promotes the "cleaning coal and reducing nitrogen" project to help the continuous improvement of air quality. Beijing Shouxing Yongan Heating Co., Ltd. carried out clean energy transformation of the original six coal-fired boilers with a total of 130 steam tons, and then further implemented the existing gas-fired boilers in accordance with the newly announced "Boiler Air Pollutant Emission Standards" in Beijing "Low-nitrogen retrofit" to achieve the goal of reducing boiler nitrogen oxide emissions to below 30 mg/m3.

  In addition to the transformation, Beijing Shouxing Yongan Heating Co., Ltd. upgraded the idle old factory buildings, developed cultural and creative industries, and cooperated with well-known domestic network service platforms to jointly build Beijing’s "Internet +" innovation and entrepreneurship demonstration park. At present, it has attracted many cultural and creative enterprises to settle in, becoming a new model for industrial transformation and upgrading of the base.

  The change from "coal" to "gas" and industrial upgrading have opened a new journey for Beijing's high-quality development. Looking at the whole city, since the implementation of the "Clean Air Action Plan" in Beijing in 2013, the four major coal-burning projects have been completed with "extraordinary" efforts through measures such as improving laws and regulations, planning and document coordination, improving standard systems, and increasing policy support. Clean energy transformation of power plants, clean energy transformation of more than 8,000 coal-fired boilers, low-nitrogen transformation of more than 17,000 gas (oil) boilers, and clean energy replacement of more than 1.04 million households of bulk coal. Approximately 250,000 villagers have adopted shed renovation , Demolition, upstairs and other measures to achieve clean heating.

  By 2018, the city has basically no coal-fired boilers, and the basic "no coal" goal of villages in plain areas has been achieved. The city's annual coal consumption dropped from 22.7 million tons in 2012 to less than 2.5 million tons in 2019, a reduction of about 90%, and the consumption of high-quality energy such as natural gas and electricity increased to over 97%.

  It is estimated that the comprehensive emission reduction project can reduce 52,000 tons of sulfur dioxide emissions, 68,000 tons of nitrogen oxides, and 43,000 tons of smoke and dust each year. At the same time, Beijing has taken the lead in advancing the low-nitrogen renovation project of gas (oil) boilers in the country through standard guidance, technology demonstration, and policy encouragement, opening up new ways to control nitrogen oxides and significantly reducing nitrogen oxide emissions. Photography/Reporter of our newspaper  Wei Tong

  extension

  Beijing provides lessons for the world

  A reporter from the Beijing Youth Daily learned from the Municipal Bureau of Ecology and Environment that in 2019, the city’s four major pollutants including fine particulate matter (PM2.5), inhalable particulate matter (PM10), sulfur dioxide, and nitrogen dioxide have reached the lowest annual average concentrations in history. The gold content of "Blue Sky" continues to increase, and the air quality presents the characteristics of "goods increasing and bad decreasing".

  Among them, the annual average concentration of PM2.5 entered the “40+” for the first time, which was 42 micrograms/m3, a 53% decrease from 2013; the annual average concentration of sulfur dioxide was 4 micrograms/m3, a decrease of 85% from 2013, for three consecutive years Maintained in single digits and reached the international advanced level; the annual average concentrations of PM10 and nitrogen dioxide were 68 and 37 micrograms/m3, respectively, which were 37% and 34% lower than in 2013, and reached the national secondary standards. The cumulative number of good days was 240 days, an increase of 64 days from 2013, accounting for 65.8%; the number of days with heavy pollution dropped from 58 days in 2013 to 4 days in 2019, a decrease of 54 days, and there was no PM2.5 in 2018 and 2019 for two consecutive years On a severely polluted day, the process of heavy pollution presents the characteristics of a significant reduction in peak pollution, a significant reduction in duration, and a significant reduction in frequency.

  The United Nations Environment Program spoke highly of the effectiveness of Beijing’s air pollution control, pointing out that Beijing has achieved remarkable results in improving the quality of the air environment. No other city or region in the world can achieve such good results in such a short period of time. Beijing’s efforts to improve the quality of the atmospheric environment have provided other cities around the world with lessons to learn from, especially those in developing countries.

  文/Our reporter Wang Bin

  related

  Miyun Reservoir focuses on rectification and dumping of garbage and other 10 major issues

  At the mobilization meeting yesterday morning, with the order of Gong Zongyuan, the deputy secretary of the Miyun District Committee and the mayor, in the next three months, relevant departments will carry out a carpet inspection of the Miyun Reservoir’s first-level protection zone and upstream rivers. Ten major issues such as dumping of garbage, discharge of sewage, illegal fishing, breeding and grazing, and damage to seine nets have been rectified.

  Miyun Reservoir is a large-scale water conservancy project for comprehensive utilization of water supply, flood control, and power generation. This year marks the 60th anniversary of the completion of Miyun Reservoir. Yesterday morning, at the mobilization meeting of the Miyun Reservoir's "Hundred-Day Action for Safe Renovation", more than 300 representatives of water conservation staff swore to continue to protect the Miyun Reservoir. District Mayor Gong Zongyuan stated that in the "Hundred Days Action", all towns and relevant departments in Miyun District should focus on ten major issues, including random sewage discharge, garbage dumping, breeding and grazing, and illegal fishing, and conduct comprehensive investigations and strict law enforcement to ensure that rectification is in place.

  Gong Zongyuan emphasized that the illegal quarrying of sand and gravel, the destruction of fences, and illegal occupation of river courses in the first-level reservoir protection areas should be strictly investigated and dealt with quickly in accordance with the law; for villages without sewage treatment facilities in the first and second-level protection areas The problem of sewage treatment should be solved immediately by effective measures; the intelligent monitoring system of reservoirs should be used well, and the roles of river chiefs and water conservators at all levels should be played well to form a water preservation work system that combines civil air defense, physical defense, and technical defense. On the same day, the Miyun Reservoir Comprehensive Law Enforcement Brigade and Water Law Enforcement Unit dispatched 5 speedboats to focus on inspections of illegal activities such as fishing and fishing in the reservoir area. According to a reporter from the Beijing Youth Daily, such inspections are carried out every day.

  Text/Reporter Cui Yifei

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