The purpose of cleaner production is to comprehensively utilize resources, replace shortages of resources, use of secondary resources, and conserve energy, reduce consumption, save water, rationally use natural resources, and reduce the depletion of resources; reduce the generation and emission of wastes and pollutants, Promote the production of industrial products, the consumption process is compatible with the environment, reduce the risk of the entire industrial activity to humans and the environment, realize the unification of the economic benefits, social benefits and environmental benefits of industrial production, and ensure the sustainable development of the national economy. Therefore, the content of cleaner production includes four aspects, namely, clean raw materials and energy, clean production processes, clean products, and “full-process†control of cleaner production.
(―) Clean Raw Materials and Energy
The so-called clean raw materials use as little or no toxic and harmful raw materials as possible and use low-pollution, non-polluting raw materials. Clean energy refers to the clean use of conventional energy sources, such as clean coal technology; accelerating technological progress and technological transformation with emphasis on energy saving; improving energy efficiency; and accelerating the development and utilization of renewable new energy sources such as hydropower, nuclear energy, solar energy, etc. Wind energy, geothermal energy, ocean energy, biomass energy, etc.
(b) Clean production process
The production process involves production preparation, basic production process, auxiliary production process and production service, that is, from the selection of raw materials to the final formation of the product. The clean production process is to minimize and eliminate the use of toxic and harmful raw materials; to use non-toxic and harmless intermediate products; to use less waste and non-waste production processes and efficient equipment; to minimize various hazards in the production process. Factors, such as high temperature, high pressure, low pressure, flammable, explosive, strong noise, strong vibration, etc. Adopt reliable and simple production operation and control, optimize production organization and implement scientific production management; use materials for internal recycling; carry out necessary pollution control, and achieve clean and efficient production.
(III) Clean Products
Clean products refer to saving raw materials and energy, designing less expensive and scarce raw materials, making use of secondary resources as much as possible, and minimizing the impact on the environment; product should have reasonable usage functions and service life, and product use. The use of earthworms in the process will not harm human health and damage the ecological environment, and strive to achieve zero emissions; product packaging is reasonable; products should be easy to recycle, reuse and regeneration; after the product is scrapped, it is easy to handle, easy to degrade and harmless.
(d) The whole process of clean production
The entire process control throughout the clean production includes two aspects, namely, the whole process control of the production raw material or material conversion and the whole process control of the main production organization.
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(―) Clean Raw Materials and Energy
The so-called clean raw materials use as little or no toxic and harmful raw materials as possible and use low-pollution, non-polluting raw materials. Clean energy refers to the clean use of conventional energy sources, such as clean coal technology; accelerating technological progress and technological transformation with emphasis on energy saving; improving energy efficiency; and accelerating the development and utilization of renewable new energy sources such as hydropower, nuclear energy, solar energy, etc. Wind energy, geothermal energy, ocean energy, biomass energy, etc.
(b) Clean production process
The production process involves production preparation, basic production process, auxiliary production process and production service, that is, from the selection of raw materials to the final formation of the product. The clean production process is to minimize and eliminate the use of toxic and harmful raw materials; to use non-toxic and harmless intermediate products; to use less waste and non-waste production processes and efficient equipment; to minimize various hazards in the production process. Factors, such as high temperature, high pressure, low pressure, flammable, explosive, strong noise, strong vibration, etc. Adopt reliable and simple production operation and control, optimize production organization and implement scientific production management; use materials for internal recycling; carry out necessary pollution control, and achieve clean and efficient production.
(III) Clean Products
Clean products refer to saving raw materials and energy, designing less expensive and scarce raw materials, making use of secondary resources as much as possible, and minimizing the impact on the environment; product should have reasonable usage functions and service life, and product use. The use of earthworms in the process will not harm human health and damage the ecological environment, and strive to achieve zero emissions; product packaging is reasonable; products should be easy to recycle, reuse and regeneration; after the product is scrapped, it is easy to handle, easy to degrade and harmless.
(d) The whole process of clean production
The entire process control throughout the clean production includes two aspects, namely, the whole process control of the production raw material or material conversion and the whole process control of the main production organization.
The entire process control of material conversion is also often referred to as the entire process control of the product's life cycle. It refers to the necessary measures taken from the processing and refining of raw materials to the production of products, the use of products, and the disposal of waste, and controls pollution prevention.
The entire process of production organization control, that is, the entire process of industrial production control. It refers to the development, planning, design, construction, and operation management of products, and takes necessary measures to prevent the occurrence of pollution.
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