Recycling, system and standard of the hottest pack

Packaging material recycling and system and standards

packaging material recycling is all activities of collecting and storing the used packaging materials when they are about to enter or have entered the waste box or garbage yard. These packaging and packaging materials are collected and sent to special places for valuable treatment and processing

1. Importance of packaging material recycling

packaging material recycling has great significance, mainly in reducing pollution and saving resources and energy. The recycling of packaging materials is divided into Unproductive recycling and effective recycling

the recycling of packaging materials is combined with treatment and utilization

1) energy saving

recycling of packaging can save energy. The amount of energy saved depends on the energy consumed in production and the type of materials to be recycled. Table 1 shows the energy consumption per kilogram of packaging materials produced with raw materials

Table 1 the total energy required to produce biological cells from raw materials on earth will continuously synthesize new molecules from regenerated cells. 1kg of various packaging materials

production process electric power (MJ) oil fuel (MJ) other fuels (MJ) total energy (MJ)

energy used directly in the production and transmission of energy energy raw materials used directly in the production and transmission of energy raw materials used directly in the production and transmission of energy energy

low pressure polyethylene resin 7.28 2.76 7.08 36.82 49.95000104.35

PET resin 20.01 7.59 16.09 78.57 60.74 00183

liquid aluminum 124.9 63.91 9.89 49 31.12 1.25 14.64 0294.7

tinplate 8.99 3.41 1.23 6.01 04.1 26.104 9.84

kraft paper 16.9 6.41 4.03 19.67 0.05 16.63 17.89 81.53

can sealing compound 7.49 2.84 12.35 60.3 96.7 00179.68

paperboard 24.65 9.35 5.25 25 0.63 16.63 17.89 99.45

glass container 3.45 1.31 1.77 8.63 0.61 5.93 021.7

varnish 16.2 6.15 20.6 100.58 151.54 6.23 73.38 032 Classification of flammability of building materials and products (GB8624 ⑵ 012) by zhangyuhui, senior engineer of China Academy of Building Materials Science Report 74.69

cellulose film 31.4 11.91 18.77 91.65 0.89 17.93 19.29 191.84

polypropylene film 37.38 14.18 11.21 54.71 55.28 0072.76

shrink wrapping film 43.68 16.19 12.17 62.36 52.45 00187.45

now list the ratio of recycling and production energy consumption of several commonly used packaging materials

(1) recycling and energy saving of aluminum materials for packaging

aluminum production is the final energy consuming packaging material, and the recycling of aluminum packaging materials is the most valuable. The recycling of aluminum packaging materials can save a lot of energy. Research shows that recycling aluminum can save 95% of the energy used to produce aluminum from bauxite

(2) recycling and energy saving of steel and glass packaging materials

steel and glass materials are the materials used in packaging materials only second to paper and plastic packaging materials. Because of its large consumption ratio, recycling has great value, and recycling energy conservation is also very prominent. Research shows that recycling steel and glass waste can save about 50% of the energy required to produce these two products from raw ore and quartz sand

(3) recycling and energy saving of plastic packaging materials

plastic is the packaging material with the fastest development and application speed. Due to its complex packaging form, the recycling proportion is relatively low. The recycling of plastic packaging waste can also save energy, and the amount saved depends on the recycling method adopted. Using plastic waste to make parts or packaging containers can produce 85-96% of the energy required to make plastic from pure resin. Although simply burning plastic waste can also save energy, the energy saved by recycling and reuse is twice that of incineration. For example, the combustion value of 45.4kg high-density polyethylene is 19000 joules, but recycling and reuse can save 38000 joules of energy

in addition, some other packaging materials also have recycling value, and their energy saving is also obvious, such as wood packaging materials, ceramic packaging materials, etc. Only because its pollution to the environment is not too great, it has not been well recycled

2) save resources

it is an indisputable fact that the recycling of packaging materials saves valuable resources. The purpose of recycling is to use. There is little difference between the packaging value obtained by recycling and reusing many packaging materials and the packaging value generated by using original materials. The value can be improved by reducing by 19% or adding a small amount of original materials. Because of this, it is for the purpose of profit that operators recycle the packaging materials

the recycling of packaging materials lies in utilization and environmental maintenance. The recovered metal is almost different from the original metal, so it has the same use value

2. Recycling system of packaging materials

whether the recycling of packaging materials is successful depends largely on the recycling system. There are mainly two kinds of recycling systems, one is government behavior, the other is market behavior

1) recycling system of government behavior

this system is led by government departments to establish corresponding institutions and designate them to specialize in the recycling of packaging waste, such as China's environmental sanitation institutions and waste material recycling companies

the recycling system of government behavior has the function of exercising government functions and powers, and has the dual identity of management and operation

2) recycling system of market behavior

this recycling system is completely determined by the market law. Its operation is mainly for the purpose of value and benefit. Their recycling varieties are selective, and the selectable recycling varieties have a great correlation with the changes of market prices. For example, many household registration recycling enterprises and scrap recycling self-employed operators formed spontaneously in China belong to this kind

3) comparison of the two systems

the recycling system of market behavior has the most vitality, because it appears as an enterprise and conforms to international norms, but the relevant management departments need to establish and improve the relevant recycling management regulations to make it have both social and economic benefits

the recycling system of government behavior is a semi official institution with government functions. Due to many factors, it shows surprise and passivity, that is, the recycling efficiency and effect are relatively good when conducting inspection or evaluation, but relatively poor at ordinary times

the recycling needle of final packaging waste enters the market and is realized through economic leverage and market network

3. Measurement standard of successful recycling

1) social response to packaging waste

society does not care about the treatment of waste generated in the production of packaging materials, because these waste materials are relatively homogeneous, and manufacturers are also easy to recycle them. However, the society is concerned about the packaging waste after consumption. Recycling post consumer waste includes the following steps: collecting, reprocessing, making products for sale, and selling all or part of the recycled materials. When these finished products are used as packaging, the impact on the body and mind of consumers is of concern to the society

2) measurement standard

the measurement standard for the success of packaging waste recycling is also the condition for the survival and development of packaging waste recycling enterprises. In addition to the compensation and tax incentives that the government may provide, the survival of any waste recycling enterprise must also generate economic benefits through recycling operations

there are four criteria to measure whether the recycling of packaging waste is successful or whether the recycling enterprise can survive:

(1) there are continuous sources of packaging waste

(2) there are feasible recovery and reprocessing methods

(3) the products reproduced from waste have uses and markets

(4) it has good economic benefits

in the above four standards, failure will result if any standard fails to meet the requirements. Factors affecting economic benefits include the convenience of collection and the cost of treatment methods. Because the selling price of waste processed products fluctuates, recycling efforts sometimes fail. Because the price of recycled waste and reprocessed products fell, the economy of recycling turned from profit to loss

4. Summary

to sum up, packaging recycling and utilization are of great significance. At present, all recycling is classified into two systems: government behavior and market behavior. The success of recycling can be measured by the above measurement standards. Any recycling system can evaluate its success and failure by measuring standards