The expansion of the use of waste paper resources is an aspect of the raw material policy for China's paper industry. Recently, the State Planning Commission held a meeting to discuss the development of the paper industry. Leaders and experts at the meeting agreed that at present and in the near future, efforts should be made to recycle waste paper and increase publicity in this area. The Papermaking Society of China and China Light Industry Group established the Papermaking Secondary Fiber Utilization Collaborating Center in 1999. According to the State's proposal for promoting the research and development of the comprehensive utilization of resources, the recycling of waste materials is accelerated, the industrialization of waste disposal is accelerated, and waste is promoted. The requirements for the transformation of available resources were used to increase the recycling of waste paper and accelerate the development of the paper industry. During the Ninth Five-Year Plan period, secondary fiber recycling technology seminars were held in Shanghai, Hangzhou, Jining, Shandong and Shaoxing, Zhejiang. Hubei Tongshan held a technical training class and played a positive role in promoting the recycling of waste paper.
1, the significance of waste paper recycling
1.1 Due to the deteriorating environment in the world today, people's awareness of environmental protection has been increasingly strengthened. In order to save resources and protect the environment, the recycling of waste paper (also known as secondary fibers) has attracted increasing attention. In particular, the use of waste paper has brought many advantages such as saving investment, reducing costs, reducing pollution, improving quality, etc., and has also created tremendous impetus for the recycling of waste paper. According to estimates of relevant experts, the use of 1 ton of waste paper is equivalent to saving 3m3 of timber, 1.2 ton of standard coal, 600 kWh of electricity, and 100t of water, so all countries in the world have taken waste paper recycling as an important task. Also through laws and regulations, certain paper must contain a certain percentage of waste paper pulp.
1.2 The recycling of waste paper in China has grown rapidly with the development of the paper industry. The amount of waste pulp increased from 7.6 million tons in 1995 to 12.3 million tons in 2000, accounting for 41% of the total amount of paper pulp, but it lags far behind the level of some developed countries abroad, indicating that China's potential for recycling waste paper is still quite high. Big. In 1999, the world’s paper and paperboard production was 316 million tons, a total of 137 million tons of waste paper was recovered, the recovery rate was 43.7% of the paper and paperboard consumption in the year, and the utilization rate was 44.2% of the paper and board production in the year, of which Germany 61 %, US 72%, France 54%, Netherlands 74%, Spain 81%, Japan 55%, South Korea 79%, China's Taiwan Province 90%. In countries and regions where fiber resources are generally lacking, waste paper recycling and utilization are high. China's papermaking fiber resources are relatively poor, especially wood fiber, so in addition to recycling domestic waste paper, we must actively use foreign waste paper. The main component of foreign waste paper is wood fiber, which is of good quality, reasonable price, and high value of use, which can improve the quality of products and increase the economic efficiency of enterprises. In recent years, the volume of imported waste paper soared. In 1995, the amount of imported paper was 890,000 tons. In 2000, it reached 3.71 million tons, 1.2 million tons more than in 1999, 2.5 million tons, and 47.6% in one year, and the import volume was still increasing year by year. .
1.3 The shortage of papermaking fiber raw materials in China is becoming more and more prominent. In 2000, the total amount of imported paper, paperboard, paper pulp, waste paper and paper products reached 13.37 million tons. In order to speed up the readjustment of the raw material structure of the papermaking industry, afforestation has received the attention of the state, promulgated a policy of accelerating the construction of papermaking forest bases and realizing the integration of forestry and paper, and the papermaking and forestry sectors are studying and implementing the cultivation and planting of fine tree species, but the most It will take 5 to 8 years for it to be cut into pieces, and grass resources will not be able to develop much. In particular, the pollution of wheat straw pulping has not yet been fundamentally resolved. Therefore, the best way at present is to expand the recycling of waste paper, which not only solves papermaking resources, but also improves the environment. Only by making full use of waste paper and adjusting the structure of papermaking raw materials can we reduce the shortage of fiber resources, reduce pollution, and improve the environment. At the same time, we can also save a great deal of water, reduce the amount of primary fiber, increase the economic efficiency of enterprises, enhance the market competitiveness of enterprises, and ensure the paper industry. sustainable development.
2. The current situation and problems of the recycling and utilization of waste paper in China
2.1 The number of waste paper recycling is accelerating
As the use of waste paper as raw material for the production of paper and board has significant economic and social benefits, waste paper recycling is accelerating development across the country, especially in coastal areas, including Guangdong, Guangxi, Fujian, Zhejiang, Jiangsu, Shandong, etc. Province, as well as Beijing, Tianjin and Shanghai. Papermaking industry in Zhejiang Province has adjusted the structure of raw materials since the 1980s, and has strongly promoted and promoted the use of waste paper for papermaking. It has achieved success. Now the proportion of waste paper in the province's papermaking fiber raw materials exceeds 76%, which has reached the advanced level of foreign recycling and waste paper countries. . There are more than 200 paper mills in Fuyang City, Zhejiang Province, and the total output has reached 1.3 million to 1.5 million tons, mainly using waste paper as raw material. Guangdong Province has also surpassed 60%. For example, Dongguan Nine Dragons Paper Co., Ltd. has produced 200,000 tons of kraft paperboard annually after it was put into operation in 1998. The second phase of the annual output of 400,000 tons of high-grade paperboard was put into production in 2000. The construction of the third phase of the project will produce an annual output of 400,000 tons of high-grade corrugated paper. After the production, the output will exceed 1 million tons, and the raw materials will mainly use waste paper. The provinces and cities with rapid development of the paper industry are formulating plans to expand waste paper recycling and accelerate the development of the paper industry, and strive to achieve a new breakthrough in waste paper recycling in a relatively short period of time. The current problem is unbalanced development, and the recovery and utilization of waste paper in some provinces and cities is still relatively slow.
2.2 Actively and Effectively Utilize Foreign Resources
Since foreign waste paper is mainly wood fiber, it can be seen from the amount of waste paper imported and used in 2000 that the total amount of waste paper imported and the imported waste paper of classified products increased in 2000 to a different extent than in 1999. The total volume increased by 47.6% from 251 million tons in 1999 to 3.71 million tons in 2000. The amount of imported waste paper increased from 245 million U.S. dollars to 557 million U.S. dollars, an increase of 127%. The import volume of bleached printing and waste paper increased fastest among the four categories of waste papers used by customs statistics, and the import volume was 326,000 tons, an increase of 84.5%. The import volume was the largest, including machinery pulp waste paper (old newspapers), accounting for 1/2 of the total imported waste paper volume. In 2000, it reached 1.8 million tons. The import volume of unbleached kraft paper and corrugated box waste paper was 961 thousand tons, and other wastes Paper 266,000 tons. In 2000, the average price of imported waste paper was US$150/ton, which was US$52.4/ton more than in 1999. The unbleached kraft paper and corrugated paperboard waste papers by category were US$164.4/tonne, an increase of US$66.6/ton; bleached printing paper waste paper was US$141/tonne, an increase of US$56.7/ton; and mechanical wood pulp waste paper was US$146.1/tonne. An increase of US$47.7/ton; other waste paper is US$143.8/ton, an increase of US$45/ton. In general, the price of waste paper in 2000 was upwardly volatile compared with 1999.
2.3 Using High-tech and Advanced Equipment
The pulp and paper technology in the world today is developing to reduce pollution, save energy, water resources, and fully utilize fiber regeneration resources. In recent years, a group of enterprises with strong capital and technical strength in China have adhered to advanced waste paper processing technologies at high starting points, high standards and high levels, and introduced advanced international equipment to strive to keep pace with the modernization of paper production in the short term. International trend. Since the reform and opening up, China has imported more than 50 sets of waste paper processing lines from abroad, including unbleached kraft paper and corrugated paperboard waste paper, used newspapers, bleached printing paper waste paper, and other waste paper processing equipment. The daily maximum production capacity of waste paper production lines has reached 500 tons. Including pulping, screening, purification, deslagging, washing, concentration, thermal dispersion, rubbing, flotation, deinking, bleaching and other advanced technology and equipment, these imported equipment is necessary to speed up the use of waste paper in China. Greatly reduce the gap between China's waste paper processing technology and equipment and the world's advanced level. Almost all advanced equipment for waste paper processing in the world can now be seen in our enterprises. The current gap is only lagging behind foreign advanced level in the application of enterprise scale and individual advanced technologies.
2.4 Independent Innovation and Introduction of Technology to Develop Equipment Manufacturing Industry
In recent years, domestic light industrial machinery and research departments have done a lot of work on the research and development of waste paper processing equipment. Some equipments are close to the advanced level in foreign countries, reliable and practical, suitable for small and medium-sized enterprises to process various waste papers, can maintain the original strength of waste paper fibers, achieve water saving, energy conservation, less fiber loss, convenient maintenance, and reasonable prices. Facilitate the use of business acceptance. Shandong Jining Huayi Machinery Co., Ltd., according to the development requirements of the paper industry, during the “10th Five-Year Plan†period, further improved the performance of waste pulp equipment, with the maximum processing capacity increased to 400 tons/day, and the deinking pulp processing capacity reached 250 tons/day. The plant has recently signed a technology transfer contract for waste paper processing equipment with TBC Corporation of the United States. During the “Ninth Five-Year Plan†period, the control system for waste paper processing developed rapidly. Hangzhou Huazhang Group has done a lot of work in this area and has achieved great results. In particular, paperboard projects using waste paper are highly competitive. Hsing Paper's 150,000-ton container board, Sun Paper's 150,000-ton white paperboard, and Yongtai Paper's 65,000-ton white paperboard waste paper processing and automatic control device were all put into production successfully, in line with State Council Premier Zhu Rongji’s “Ten V. “The textile industry has accelerated the development of common technologies, key technologies and supporting technologies that promote structural upgrading through the independent innovation and the introduction of technologies, and revitalized the equipment manufacturing industry to develop and manufacture the much-needed large-scale, high-efficiency and advanced sets of products. technical equipment."
2.5 Adding chemical additives in waste paper processing
Waste paper is already used secondary fibers. Unlike primary fibers, the strength is low and the color is dark. However, it can be supplemented by the addition of chemical additives, especially in the deinking process, it needs more additives to improve the quality and reduce pollution. There are many types of additives and they can be added at different locations according to different uses. In order to better perform deinking, some companies use a deinking agent formulated with a variety of surfactants, and the research department is investigating biological enzymes. In short, chemical additives are used in a wide range and they work well. Varieties are whitening, enhancement, retention, filtration, flocculation, dispersion, chelation and so on. Chemical auxiliaries not only improve the quality, but also reduce pollution, and are very good for production. Therefore, papermaking companies at home and abroad attach great importance to the development and application of chemical auxiliaries. In recent years, some domestic enterprises and research institutes have done a lot of work in the development, research, promotion and application, and have achieved remarkable results.
2.6 Pay attention to secondary pollution during waste paper processing
Although waste paper pulping and papermaking can reduce pollution, it is not without pollution, and pollution is still serious in the deinking process. In recent years, China has imported several sets of waste paper deinking wastewater treatment devices from abroad, generally all of them are air flotation methods, and the flocculation and sedimentation method developed by South China University of Science and Technology has been applied in papermaking enterprises in Guangdong and Shandong. The white water recovery device has many models and it is widely used and works well.
2.7 embarked on the preparation of "classification criteria for waste paper recycling"
Although waste paper is collected from different types and mixed, some foreign advanced countries have established relevant standards for waste paper recycling. With the increasing awareness of social environmental protection in China, more and more domestic paper mills use waste paper to replace some wood pulp and straw pulp to produce various kinds of paper and paperboard in order to reduce costs and reduce pollutant emissions. Therefore, the formulation of China’s The "classification criteria for waste paper recycling" is an urgent matter. With the approval of the Ministry of Science and Technology, the China Pulp and Paper Research Institute will undertake this research. The research cost will use a special fund for social welfare research and it is planned to be completed within two years. The above research work has already started.
2.8 Strengthening the recovery, classification and supply of domestic waste paper
In recent years, the issue of waste paper sorting and recycling has attracted the attention of relevant departments, and Beijing will issue the “Administrative Measures on Beijing Recycling Resources Recycling Industryâ€. In 1998, Shanghai imported 1.23 million tons of waste, of which waste paper accounted for 70%, that is, 870,000 tons of imported waste paper, plus 700,000 tons of waste paper for local recycling. Shanghai already has the conditions for industrialization. In order to speed up the development of waste paper recycling and utilization and promote the conversion of waste paper into usable materials, Shanghai Paper Company has established an integrated waste paper recycling and processing plant, which is of great significance to the development of the paper industry in Shanghai.
3. Ideas and Countermeasures for Recycling Waste Paper during the Tenth Five-Year Plan Period
3.1 Accelerate the use of waste paper
During the “10th Five-Year Plan†period, China’s paper industry development target is that by 2005, the consumption of paper and paperboard will reach 50 million tons, 14 million tons more than in 2000; the output of paper and board will reach 40 million tons, an increase of 10 million tons from 2000. . In 2005, the proportion of waste pulp in total pulp increased to 45%, and that of waste pulp was 16.2 million tons. For this reason, the use of waste paper in the future has not only grown in quantity but also in terms of quality, variety, and recycling methods.
1, the significance of waste paper recycling
1.1 Due to the deteriorating environment in the world today, people's awareness of environmental protection has been increasingly strengthened. In order to save resources and protect the environment, the recycling of waste paper (also known as secondary fibers) has attracted increasing attention. In particular, the use of waste paper has brought many advantages such as saving investment, reducing costs, reducing pollution, improving quality, etc., and has also created tremendous impetus for the recycling of waste paper. According to estimates of relevant experts, the use of 1 ton of waste paper is equivalent to saving 3m3 of timber, 1.2 ton of standard coal, 600 kWh of electricity, and 100t of water, so all countries in the world have taken waste paper recycling as an important task. Also through laws and regulations, certain paper must contain a certain percentage of waste paper pulp.
1.2 The recycling of waste paper in China has grown rapidly with the development of the paper industry. The amount of waste pulp increased from 7.6 million tons in 1995 to 12.3 million tons in 2000, accounting for 41% of the total amount of paper pulp, but it lags far behind the level of some developed countries abroad, indicating that China's potential for recycling waste paper is still quite high. Big. In 1999, the world’s paper and paperboard production was 316 million tons, a total of 137 million tons of waste paper was recovered, the recovery rate was 43.7% of the paper and paperboard consumption in the year, and the utilization rate was 44.2% of the paper and board production in the year, of which Germany 61 %, US 72%, France 54%, Netherlands 74%, Spain 81%, Japan 55%, South Korea 79%, China's Taiwan Province 90%. In countries and regions where fiber resources are generally lacking, waste paper recycling and utilization are high. China's papermaking fiber resources are relatively poor, especially wood fiber, so in addition to recycling domestic waste paper, we must actively use foreign waste paper. The main component of foreign waste paper is wood fiber, which is of good quality, reasonable price, and high value of use, which can improve the quality of products and increase the economic efficiency of enterprises. In recent years, the volume of imported waste paper soared. In 1995, the amount of imported paper was 890,000 tons. In 2000, it reached 3.71 million tons, 1.2 million tons more than in 1999, 2.5 million tons, and 47.6% in one year, and the import volume was still increasing year by year. .
1.3 The shortage of papermaking fiber raw materials in China is becoming more and more prominent. In 2000, the total amount of imported paper, paperboard, paper pulp, waste paper and paper products reached 13.37 million tons. In order to speed up the readjustment of the raw material structure of the papermaking industry, afforestation has received the attention of the state, promulgated a policy of accelerating the construction of papermaking forest bases and realizing the integration of forestry and paper, and the papermaking and forestry sectors are studying and implementing the cultivation and planting of fine tree species, but the most It will take 5 to 8 years for it to be cut into pieces, and grass resources will not be able to develop much. In particular, the pollution of wheat straw pulping has not yet been fundamentally resolved. Therefore, the best way at present is to expand the recycling of waste paper, which not only solves papermaking resources, but also improves the environment. Only by making full use of waste paper and adjusting the structure of papermaking raw materials can we reduce the shortage of fiber resources, reduce pollution, and improve the environment. At the same time, we can also save a great deal of water, reduce the amount of primary fiber, increase the economic efficiency of enterprises, enhance the market competitiveness of enterprises, and ensure the paper industry. sustainable development.
2. The current situation and problems of the recycling and utilization of waste paper in China
2.1 The number of waste paper recycling is accelerating
As the use of waste paper as raw material for the production of paper and board has significant economic and social benefits, waste paper recycling is accelerating development across the country, especially in coastal areas, including Guangdong, Guangxi, Fujian, Zhejiang, Jiangsu, Shandong, etc. Province, as well as Beijing, Tianjin and Shanghai. Papermaking industry in Zhejiang Province has adjusted the structure of raw materials since the 1980s, and has strongly promoted and promoted the use of waste paper for papermaking. It has achieved success. Now the proportion of waste paper in the province's papermaking fiber raw materials exceeds 76%, which has reached the advanced level of foreign recycling and waste paper countries. . There are more than 200 paper mills in Fuyang City, Zhejiang Province, and the total output has reached 1.3 million to 1.5 million tons, mainly using waste paper as raw material. Guangdong Province has also surpassed 60%. For example, Dongguan Nine Dragons Paper Co., Ltd. has produced 200,000 tons of kraft paperboard annually after it was put into operation in 1998. The second phase of the annual output of 400,000 tons of high-grade paperboard was put into production in 2000. The construction of the third phase of the project will produce an annual output of 400,000 tons of high-grade corrugated paper. After the production, the output will exceed 1 million tons, and the raw materials will mainly use waste paper. The provinces and cities with rapid development of the paper industry are formulating plans to expand waste paper recycling and accelerate the development of the paper industry, and strive to achieve a new breakthrough in waste paper recycling in a relatively short period of time. The current problem is unbalanced development, and the recovery and utilization of waste paper in some provinces and cities is still relatively slow.
2.2 Actively and Effectively Utilize Foreign Resources
Since foreign waste paper is mainly wood fiber, it can be seen from the amount of waste paper imported and used in 2000 that the total amount of waste paper imported and the imported waste paper of classified products increased in 2000 to a different extent than in 1999. The total volume increased by 47.6% from 251 million tons in 1999 to 3.71 million tons in 2000. The amount of imported waste paper increased from 245 million U.S. dollars to 557 million U.S. dollars, an increase of 127%. The import volume of bleached printing and waste paper increased fastest among the four categories of waste papers used by customs statistics, and the import volume was 326,000 tons, an increase of 84.5%. The import volume was the largest, including machinery pulp waste paper (old newspapers), accounting for 1/2 of the total imported waste paper volume. In 2000, it reached 1.8 million tons. The import volume of unbleached kraft paper and corrugated box waste paper was 961 thousand tons, and other wastes Paper 266,000 tons. In 2000, the average price of imported waste paper was US$150/ton, which was US$52.4/ton more than in 1999. The unbleached kraft paper and corrugated paperboard waste papers by category were US$164.4/tonne, an increase of US$66.6/ton; bleached printing paper waste paper was US$141/tonne, an increase of US$56.7/ton; and mechanical wood pulp waste paper was US$146.1/tonne. An increase of US$47.7/ton; other waste paper is US$143.8/ton, an increase of US$45/ton. In general, the price of waste paper in 2000 was upwardly volatile compared with 1999.
2.3 Using High-tech and Advanced Equipment
The pulp and paper technology in the world today is developing to reduce pollution, save energy, water resources, and fully utilize fiber regeneration resources. In recent years, a group of enterprises with strong capital and technical strength in China have adhered to advanced waste paper processing technologies at high starting points, high standards and high levels, and introduced advanced international equipment to strive to keep pace with the modernization of paper production in the short term. International trend. Since the reform and opening up, China has imported more than 50 sets of waste paper processing lines from abroad, including unbleached kraft paper and corrugated paperboard waste paper, used newspapers, bleached printing paper waste paper, and other waste paper processing equipment. The daily maximum production capacity of waste paper production lines has reached 500 tons. Including pulping, screening, purification, deslagging, washing, concentration, thermal dispersion, rubbing, flotation, deinking, bleaching and other advanced technology and equipment, these imported equipment is necessary to speed up the use of waste paper in China. Greatly reduce the gap between China's waste paper processing technology and equipment and the world's advanced level. Almost all advanced equipment for waste paper processing in the world can now be seen in our enterprises. The current gap is only lagging behind foreign advanced level in the application of enterprise scale and individual advanced technologies.
2.4 Independent Innovation and Introduction of Technology to Develop Equipment Manufacturing Industry
In recent years, domestic light industrial machinery and research departments have done a lot of work on the research and development of waste paper processing equipment. Some equipments are close to the advanced level in foreign countries, reliable and practical, suitable for small and medium-sized enterprises to process various waste papers, can maintain the original strength of waste paper fibers, achieve water saving, energy conservation, less fiber loss, convenient maintenance, and reasonable prices. Facilitate the use of business acceptance. Shandong Jining Huayi Machinery Co., Ltd., according to the development requirements of the paper industry, during the “10th Five-Year Plan†period, further improved the performance of waste pulp equipment, with the maximum processing capacity increased to 400 tons/day, and the deinking pulp processing capacity reached 250 tons/day. The plant has recently signed a technology transfer contract for waste paper processing equipment with TBC Corporation of the United States. During the “Ninth Five-Year Plan†period, the control system for waste paper processing developed rapidly. Hangzhou Huazhang Group has done a lot of work in this area and has achieved great results. In particular, paperboard projects using waste paper are highly competitive. Hsing Paper's 150,000-ton container board, Sun Paper's 150,000-ton white paperboard, and Yongtai Paper's 65,000-ton white paperboard waste paper processing and automatic control device were all put into production successfully, in line with State Council Premier Zhu Rongji’s “Ten V. “The textile industry has accelerated the development of common technologies, key technologies and supporting technologies that promote structural upgrading through the independent innovation and the introduction of technologies, and revitalized the equipment manufacturing industry to develop and manufacture the much-needed large-scale, high-efficiency and advanced sets of products. technical equipment."
2.5 Adding chemical additives in waste paper processing
Waste paper is already used secondary fibers. Unlike primary fibers, the strength is low and the color is dark. However, it can be supplemented by the addition of chemical additives, especially in the deinking process, it needs more additives to improve the quality and reduce pollution. There are many types of additives and they can be added at different locations according to different uses. In order to better perform deinking, some companies use a deinking agent formulated with a variety of surfactants, and the research department is investigating biological enzymes. In short, chemical additives are used in a wide range and they work well. Varieties are whitening, enhancement, retention, filtration, flocculation, dispersion, chelation and so on. Chemical auxiliaries not only improve the quality, but also reduce pollution, and are very good for production. Therefore, papermaking companies at home and abroad attach great importance to the development and application of chemical auxiliaries. In recent years, some domestic enterprises and research institutes have done a lot of work in the development, research, promotion and application, and have achieved remarkable results.
2.6 Pay attention to secondary pollution during waste paper processing
Although waste paper pulping and papermaking can reduce pollution, it is not without pollution, and pollution is still serious in the deinking process. In recent years, China has imported several sets of waste paper deinking wastewater treatment devices from abroad, generally all of them are air flotation methods, and the flocculation and sedimentation method developed by South China University of Science and Technology has been applied in papermaking enterprises in Guangdong and Shandong. The white water recovery device has many models and it is widely used and works well.
2.7 embarked on the preparation of "classification criteria for waste paper recycling"
Although waste paper is collected from different types and mixed, some foreign advanced countries have established relevant standards for waste paper recycling. With the increasing awareness of social environmental protection in China, more and more domestic paper mills use waste paper to replace some wood pulp and straw pulp to produce various kinds of paper and paperboard in order to reduce costs and reduce pollutant emissions. Therefore, the formulation of China’s The "classification criteria for waste paper recycling" is an urgent matter. With the approval of the Ministry of Science and Technology, the China Pulp and Paper Research Institute will undertake this research. The research cost will use a special fund for social welfare research and it is planned to be completed within two years. The above research work has already started.
2.8 Strengthening the recovery, classification and supply of domestic waste paper
In recent years, the issue of waste paper sorting and recycling has attracted the attention of relevant departments, and Beijing will issue the “Administrative Measures on Beijing Recycling Resources Recycling Industryâ€. In 1998, Shanghai imported 1.23 million tons of waste, of which waste paper accounted for 70%, that is, 870,000 tons of imported waste paper, plus 700,000 tons of waste paper for local recycling. Shanghai already has the conditions for industrialization. In order to speed up the development of waste paper recycling and utilization and promote the conversion of waste paper into usable materials, Shanghai Paper Company has established an integrated waste paper recycling and processing plant, which is of great significance to the development of the paper industry in Shanghai.
3. Ideas and Countermeasures for Recycling Waste Paper during the Tenth Five-Year Plan Period
3.1 Accelerate the use of waste paper
During the “10th Five-Year Plan†period, China’s paper industry development target is that by 2005, the consumption of paper and paperboard will reach 50 million tons, 14 million tons more than in 2000; the output of paper and board will reach 40 million tons, an increase of 10 million tons from 2000. . In 2005, the proportion of waste pulp in total pulp increased to 45%, and that of waste pulp was 16.2 million tons. For this reason, the use of waste paper in the future has not only grown in quantity but also in terms of quality, variety, and recycling methods.