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From "waste free city" to "waste free society", we ca

  With the acceleration of urbanization and the increase of the global population, the growth rate of garbage far exceeds that of the population, and the disposal of solid waste has become the "heart disease" of many cities.

  China has been exploring and practicing the harmless, quantified treatment and resource utilization of solid waste.

  According to the ministry of ecology and environment, China has launched a pilot program to select "waste-free cities" this year.

  At the same time, the ministry of ecology and environment will focus on cooperating with the National People's Congress in revising the law on the prevention and control of environmental pollution by solid waste, promoting the implementation of the work of banning foreign garbage from entering the country, and deploying waste removal and other environmental improvement work.

  From "waste free city" to "waste free society", China is providing Chinese practices for global solid waste treatment.

  Solid waste into energy effective

  China is one of the countries with the largest population and the largest amount of solid waste in the world, adding about 10 billion tons of solid waste annually.

  Solid waste pollution intensity is high, endangering people's living environment.

  For example, several years ago, the dumping and transfer of solid waste at will in the Yangtze river basin was serious. Some lawbreakers secretly dumped waste on the river bank in the middle of the night.

  In May 2018, the ministry of ecology and environment launched the "" waste removal action 2018" ", and 1,308 problematic solid waste storage sites were found in 11 provinces (cities) of the Yangtze river economic belt in the first week alone.

  Solid waste can be divided into three categories according to its source and its harm to the environment: industrial waste, agricultural waste and urban waste.

  The ultimate goal of solid waste disposal is to reduce, recycle and make waste harmless.

  In China, the proper management and disposal of solid waste mainly follow three principles.

  Song guojun, a researcher at the national institute of development and strategy of renmin university of China, said to me: "reduction is to reduce the production of waste in production and life and reduce the burden on cities.

  Recycling refers to the recycling of recyclables or solid waste as raw materials into the production and consumption links, only waste as raw materials into products back to the hands of consumers, is considered as recycling;

  "Harmless" refers to the treatment and disposal of solid waste and garbage in line with the requirements of the discharge permit, namely the discharge standard.

  According to this principle, China has issued a series of policies, and made full use of market means to promote the waste into energy action, so that China's solid waste disposal cause rapid development.

  In pudong, Shanghai, a project to turn the city's vast waste into electricity, the Shanghai laogang renewable energy center, is attracting attention.

  The construction of the second phase of the project started on December 30, 2016. It is reported that the second phase of the project adopts the most advanced equipment at present: waste incineration system adopts mechanical grate furnace, waste heat power generation adopts medium-temperature and sub-high pressure steam boiler and extraction and condensation steam turbine.

  After the completion of the second phase of the project in 2019, Shanghai laogang renewable energy utilization center will become the largest waste incineration power plant in the world, and Shanghai will basically realize "zero landfill" of domestic waste.

  China's move to convert solid waste into energy has won international recognition.

  An official from the economic cooperation and trade department of the United Nations economic commission for Europe (ece), who visited the nanjing garbage power project, praised the ability of Chinese companies to provide one-stop services to improve the quality of public life in China and the world.

  "No waste city" sounds assembly call

  In order to further solve the problem of waste siege, in January 2019, the general office of the state council issued the pilot work plan for the construction of "waste free cities", proposing to select about 10 cities with conditions, foundations and appropriate scale nationwide to carry out "waste free cities".

  The ministry of ecological environment said that the ultimate goal of building a "waste-free city" is to achieve the goal of minimum solid waste production, full utilization of resources and safe disposal of the whole city, which requires long-term exploration and practice.

  At present, 59 candidate cities of "waste-free cities" have been recommended by 23 provinces, autonomous regions and municipalities across the country, and it is expected to form a number of replicable and extendable model cities by 2020, laying a foundation for building a "waste-free society".

  To build a "waste free city" requires both green production mode and green lifestyle.

  The pilot program for the construction of "waste-free cities" proposes to implement green industrial production, promote the zero growth of the total amount of solid waste storage and disposal, and promote the reduction and recycling of solid waste.

  Song guojun told me that there are three key points to build a "waste free city".

  Firstly, an index system should be established as the basis for assessment and accountability. In particular, a reliable monitoring and measurement index should be used to express the reduction of waste emissions per capita and per ten thousand yuan of GDP.

  Second, we need to speed up the management of pollutant discharge permits for landfills, incinerators and industrial solid waste disposal sites to control air pollution, water pollutant discharge and sanitation.

  Finally, the government and various departments must make information public to facilitate smooth flow of information and data sharing.

  Public participation in garbage collection

  The production and treatment of solid waste involves producers, consumers, disposers and other entities, and requires the coordinated participation of the government, enterprises and the public.

  Building a green city, so that garbage no longer "siege", but also the whole society to build and share a task.

  Liu jianguo, a professor at the school of environment at tsinghua university, pointed out that the universal garbage classification system is an indispensable part of the "waste-free city" construction.

  In March 2017, China promulgated the "implementation plan of household garbage classification system", and various cities used "good measures" and "smart measures" to actively promote the classification of household garbage.

  In Shanghai, garbage sorting has become a "new fashion".

  Shanghai municipal solid waste management regulation will take effect on July 1 this year.

  All walks of life have taken action to reduce the consumption of disposable goods, the implementation of garbage classification road.

  The intercontinental Shanghai hotel, the national convention and exhibition center that hosted the first expo, has reportedly stopped using plastic straws since the second half of 2018.

  Some budget hotels do not take the initiative to provide disposable slippers to abandon the use of disposable cleaning supplies to provide a certain degree of cost concessions.

  In order to advocate the concept of "no food, no waste" in the carriages, several bus lines in pudong are phasing out the garbage cans in the carriages.

  In march, renmin university of China in a few "new customers", these intelligent garbage sorting machine named "yellow dog" can "junk", not only can "money", they can be recycled paper, textiles, metal, plastic, glass, and different kinds of rubbish, such as hazardous waste in the APP for garbage disposal users return a certain amount of environmental protection.

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