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    General secretary Xi Jinping, during the twenty-ninth collective study of the Political Bureau of the Central Committee of the CPC, stressed that during the "14th Five-Year" period, China's ecological civilization construction entered a critical period of carbon reduction as the key strategic direction, promoting synergy of reducing pollution and reducing carbon, promoting the comprehensive green transformation of economic and social development, and improving the quality of ecological environment from quantitative change to qualitative change.

    Recently, at a press conference held by the Information Office of the State Council, Huang Runqiu, Minister of the Ministry of ecological environment, pointed out that China's ecological environment problem is fundamentally a problem of high-carbon energy structure and high-energy consuming and high-carbon industrial structure. To solve these problems, we must make efforts from the source, promote the transformation and upgrading of energy structure and industrial structure, take the path of green and low-carbon development, reduce both carbon and pollution, so as to realize the synergy of pollution reduction and carbon reduction.

    In practice, what measures have been taken in the process of reducing pollution and carbon? What results have been achieved? Starting today, this newspaper will open the column "pollution reduction and carbon reduction, we are in action" to publish the innovative measures and positive results achieved in various places.

    Cycling, garbage sorting, CD-ROM action, refueling at night, taking public transportation and answering questions... In Jinan City, Shandong Province, citizens accumulate "carbon coins" through these low-carbon behaviors to exchange scenic spot tickets, cultural and creative products and other items. Since this year, the "national low-carbon" green public welfare platform initiated and built by Jinan ecological environment bureau and other relevant departments has attracted many citizens to participate in it.

    It is one of the initiatives of Jinan to promote the construction of a low-carbon city to initiate and build a "national low-carbon" green public welfare platform.

    With the in-depth promotion of the construction of ecological civilization, the lifestyle of "moderate conservation, green, low-carbon, civilized and healthy" has increasingly become a widely respected good fashion. Building a low-carbon city, pursuing green life and living in harmony with nature has become people's consensus.

    In recent years, Quancheng Jinan has adhered to the low-carbon route, promoted the construction of low-carbon cities in an all-round way from the aspects of green building, resource recycling and ecological restoration, and called on all sectors of society to actively participate in the practice of low-carbon action and contribute to the realization of carbon peak and carbon neutralization.

    Open a new era of green building

    In the "passive room" without air conditioning and heating, the room temperature is between 20-26 ℃ all year round, the humidity is maintained between 40% - 60%, and the noise can be controlled below 35 dB during the day and 30 dB at night, bringing a very comfortable living experience to residents. This is the "black technology" in the field of green building in Jinan.

    The reporter learned that the passive ultra-low energy consumption buildings in Jinan adopt advanced building energy-saving technology, improve the thermal insulation, heat insulation and air tightness of the buildings, and then recycle the heat and cold through the fresh air system, so as to achieve the environmental protection and energy saving effect of 75% thermal recycling and 92% building energy saving.

    At present, Jinan leads the province in innovation and technology in the field of green building. A series of green communities represented by the "Hanyu Haifeng Heidelberg" project have gradually taken the lead in the country in terms of technology, and have obtained double certification from the Ministry of housing and urban rural development and the German Energy Agency. It is the largest passive residential experience demonstration project and passive ultra-low energy consumption residential demonstration area in Shandong Province.

    In the ultra-low energy consumption "passive room", the room is constant temperature, humidity, oxygen and static. Residents do not need to configure additional household appliances such as air conditioning, heating, fan and humidifier. It is constructed in an assembled way to reduce costs and improve efficiency. These advanced building energy-saving technologies have improved the building quality, green, low-carbon, environmental protection and energy conservation, and have become the pilot demonstration projects promoted at present.

    Explore ways of water resources recycling

    In Jinan Huimin middle school, the school has integrated the concept of green and low-carbon life into the school running links, strengthened the construction of campus low-carbon devices and environmental culture, and created a complete rainwater collection and recycling system.

    This system uses the rainwater pipes on the roof of the school teaching building, experimental building and comprehensive building to recover rainwater, and a total of 28 1.3m high recovery barrels are installed. These rainwater recovery drums are connected in parallel through pipelines, which can be used separately or intensively. By installing the induction electric pump, the problem of low outlet pressure of the rainwater bucket is solved, the needs of students for washing mops, extending water pipes, spraying water and watering flowers are met, and the tap water consumption for campus greening, beautification and purification is reduced.

    In the 2020 National Water Science and technology competition for middle school students, the project won the second prize and became an excellent project for campus low-carbon construction.

    In Yinfeng villa, a green community in Shandong Province, a circulating system for collecting rainwater has also been built. The community has set up a 35 cubic meter reservoir on the south side of the tennis court to collect rainwater from roofs, roads and green areas for green plant irrigation.

    According to the annual average rainfall of 672.7 mm in Jinan, 1590.12 tons of rainwater can be recovered every year, which can be used for daily irrigation of about 2800 square meters of green area.

    Ecological restoration and improvement of ecological environment

    In order to speed up the construction of an ecological and livable model city, Jinan actively promotes the construction of ecological water replenishment projects for Quanfu River and other rivers, which is also the first local pilot project to make large-scale use of reclaimed water from sewage treatment plant to replenish ecological sources for rivers, which is of great significance to ensure the stable water quality of Xiaoqing River, improve the water environment quality of urban rivers and improve the utilization rate of reclaimed water, It is of great significance to promote the construction of low-carbon cities.

    The total investment of Quanfu River and other river ecological water replenishment projects is 170 million yuan. 18 River retention and storage facilities are built and repaired. The reclaimed water treated by the first water purification plant is replenished to Quanfu River, liuxingtou River, Lishan road side ditch, Huangtai South Road side ditch and Shanda road side ditch respectively through the construction of pressurized lifting pump station and the laying of reclaimed water pressure transmission pipeline, The total design scale is 100000 m3 / day, and the recent operation scale is 80000 m3 / day. After the completion of the project, it will conserve and improve the water ecology of the river with a length of about 9.1km, benefiting many communities, units and colleges along the line.

    Public welfare organizations help low-carbon construction

    Last December, the first batch of low-carbon pilot construction units in Jinan successfully passed the expert review and officially entered the ranks of national low-carbon cities.

    In the process of low-carbon city construction, Jinan introduced public welfare organizations for the first time, and built a specific implementation system of functional departments for unified guidance, professional guidance of public welfare organizations and demonstration units, which well solved the problem of difficult implementation of the "last mile" of the policy.

    Jinan City has built a tripartite collaborative work organization structure and mobilized the enthusiasm of public welfare organizations through job assignment and empowerment. At the beginning of its establishment, green block public welfare, a low-carbon professional public welfare organization, was absorbed to form a working group with eco-environmental departments, public welfare organizations and founding units as members, with clear division of labor and clear responsibilities. The ecological environment department shall make overall planning and leadership and formulate low-carbon creation standards; Green block public welfare decomposes and implements various indicators, formulates implementation rules, and assists the creation unit to implement them in place; Each creation unit organizes personnel and provides site materials to jointly complete the creation.

    By pooling common needs, public welfare organizations develop and provide unified training courses, and focus on the design, production, procurement and installation of various publicity supplies, so as to achieve the unity of identification styles and specifications of various units, improve the creation efficiency, save a lot of human, material and capital costs, and realize resource integration and learn from each other's strengths to make up for their weaknesses.

    Jinan also actively gives play to the strengths of public welfare organizations and organizes national experts in low-carbon and environmental protection to provide professional consultation and technical assistance for the establishment of low-carbon units.