Only by facing squarely the waste paper making industry in China can it be stable and far away.
Chinese papermaking industry is an important basic raw material industry closely related to the development of the national economy and social undertakings, and is an important part of the national economy. Industry correlation degree is an important force to stimulate the development of light industry, textile, agriculture, forestry, printing, packaging, logistics and other industries, and it is a direct consumer goods industry related to people's livelihood.
Since 2009, the annual output and consumption of paper and paperboard in China has exceeded 100 million tons, ranking first in the world. However, there is a serious shortage of raw materials in China's paper industry. From the point of view of pulp consumption, waste pulp consumes 63.02 million tons, accounting for 63 per cent (of which 20.63 million tons, 34 per cent, imported waste paper pulping), 31.52 million tons of wood pulp, 31 per cent (23.72 million tons of imported wood pulp, 75 per cent). Non-wood pulp 5.97 million tons, accounting for 6%. It can be seen that 63% of papermaking raw materials rely on waste paper, and the dependence of paper industry on waste paper is very high in our country.
Recently, China Economic Network published an oral article entitled "losing crutches to build an ideal Chinese Paper Industry", which unilaterally interprets the external abolition of the basic raw materials of the paper industry. Below we as pulping and papermaking science and technology workers to explain one by one.
Why should waste paper be used as raw material for papermaking in China
Since the reform and opening up, due to the increasing demand for paper and paperboard, the papermaking industry has developed rapidly, but there is a serious shortage of papermaking raw materials. It is a sustainable development road explored by the whole industry to choose high quality waste paper as papermaking raw materials.
High quality waste paper is also called secondary fiber. Recycling secondary fiber as raw material for papermaking can reduce a large amount of wood use and is beneficial to environmental protection. Generally speaking, 1 ton of high quality waste paper can be made of about 800kg, 2 tons of wood can be saved, 1000 kW ·h of electricity can be saved, and 50 meters of water can be saved. Because of such advantages, our country vigorously develops high quality waste paper making, which makes the paper industry become a typical example of the development of circular economy in our country, and has been affirmed and recognized by the government many times.
In 2017, 20.63 million tons of imported waste paper were used for papermaking in China. If this part of the raw materials were replaced by commercial wood pulp, about 40 million tons of wood would be needed (converted into 0.5 tons of wood pulp according to 1 ton of wood production). Then, more than 40 million mu of trees will be cut down every year. Ask, where is such a forest land for papermaking enterprises to use in pulp production. In addition, even if China has forestry resources for pulping and papermaking, there are still problems of energy consumption and pollutant emission in subsequent production. Take the wastewater as an example: in general, the production of 1 ton of wood pulp, the discharge of 30 tons of wastewater, the treatment of wastewater cost 150 yuan; The annual production of 20 million tons of wood pulp instead of imported waste pulp costs 3 billion yuan to treat waste water, and 9 billion yuan to produce 60 million tons of wood pulp instead of waste paper each year. Only waste water, the application of waste paper as raw material for papermaking saves a huge amount of treatment costs.
Waste paper will retain 120 million tons of wood a year
If we abandon the waste pulp and papermaking, then our country needs to produce an additional 63 million tons of pulp every year, that is, about 120 million tons of wood, which is equivalent to cutting down 120 million mu of forest land every year, and the amount of wood consumption is very large. However, China's forest resources are scarce, accounting for only about 5% of the world's forest resources, which is far from enough. Under such circumstances, all commercial wood pulp depends on imports, and anti-Chinese scholars outside China say that "the Chinese paper industry depends entirely on foreign wood resources, then the earth will soon be destroyed."
If you use waste paper to make paper, these trees will be preserved. The trees consumed per ton of pulp can purify more than 8 million cubic meters of water and absorb more than 4000 kilograms of carbon dioxide during their growth, according to research data. This is a great contribution not only to China, but also to the world.
Waste paper making is a typical example of circular economy, which can save a lot of investment.
Why can waste paper and paper save a lot of investment? Because even if all wood pulp is used, the trees cut down will have to be pulped by chemical method, and the additional investment will be as follows: the annual output of 10, 000 tons of pulping equipment will be calculated at 100 million yuan, so a 60 million tons of wood pulp production line will be established to replace the waste pulp. The hardware investment is 600 billion yuan. In addition, the additional investment of water and wastewater treatment in the production process of 60 million tons of wood pulp is about 9 billion yuan, and only these two items cost 609 billion yuan, excluding chemical consumption and alkali recovery and treatment costs.
Compared with forest and non-wood raw materials, waste paper and paperboard do not need a series of technological processes, such as preparation, cooking, bleaching and so on, which not only saves the huge cost needed in the production process, but also greatly reduces the energy consumption. To reduce pollutant emissions, high quality waste paper and paperboard as raw materials for papermaking advantages are obvious. Therefore, the use of waste paper pulping is a typical of circular economy.
The relationship between supply and demand of products determines the reuse of waste paper
According to estimates by authoritative departments, packaging paper, cardboard and paper products attached to China's commodity exports are close to 30 million tons each year. Therefore, in order to make up for the shortage of quantity and quality of papermaking raw materials, it is necessary to import a large number of foreign waste paper back to China in the form of waste paper trade.
An accurate understanding of the national policy is beneficial to the development of China's paper industry.
In accordance with the democratic style of work, when the Ministry of Ecological Environment promulgated the Law of the people's Republic of China on the Prevention and Control of Environmental pollution by solid waste (revised draft), it consulted the vast number of pulping and papermaking scientific and technological workers and some experts on many occasions. Our scientific and technological workers have always been responsible for serving the country, society, industry and enterprises, and agree that waste paper with a miscellaneous rate of 0.5% or less is a high quality raw material for papermaking, which is also the opinion of the above workers to the government. However, the author believes that the raw material of waste paper is foreign garbage, which puts democratic opinions on the opposite side of national policy. Changing concepts is not only a misunderstanding of high-quality resources, but also a misreading of national policies. This seriously damages the national democratic style, is not conducive to the healthy development of the industry, is not conducive to the state support for the industry. In view of the above, we think that when we lose crutches and build an ideal Chinese paper industry, the author should understand the background of industry and enterprise development, and fully consult experts in relevant fields and industries. You can't imagine it out of thin air and speculate for no reason. Otherwise, it will seriously damage the reputation of China's papermaking industry and is not conducive to the healthy and long-term development of the national economy.