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Face the waste paper and papermaking


China's paper industry is an important basic raw material industry closely related to the development of national economy and social undertakings, and is an important part of the national economy. The high degree of industrial relevance is an important force driving the development of light industry, textile, agriculture, forestry, printing, packaging, logistics and other industries. It is a direct consumer goods industry that affects 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, China's paper industry raw materials are seriously inadequate. From the perspective of pulp consumption, waste paper pulp consumption was 63.02 million tons, accounting for 63% (including imported waste paper pulp of 20.63 million tons, accounting for 34%); wood pulp 31.52 million tons, accounting for 31% (including imported wood pulp 2372) 10,000 tons, accounting for 75%); non-wood pulp 5.97 million tons, accounting for 6%. It can be seen that 63% of papermaking materials rely on waste paper, and China's paper industry relies heavily on waste paper.
Recently, China Economic Net published a slogan article entitled “Delete the Abandonment of the Cane to Create a Tree, and the Chinese Paper Industry Can Be Safe and Far-reaching”, and unilaterally interpret the waste of basic raw materials in the paper industry. Below we will elaborate on the identity of the pulp and paper technology workers.
Why should we use waste paper as raw material for papermaking?
Since the reform and opening up, due to the increasing demand for paper and paperboard, the paper industry has developed rapidly. However, there is a serious shortage of papermaking materials. The choice of using high-quality waste paper as a raw material for papermaking is a sustainable development path explored by the whole industry.
High-quality waste paper is also called secondary fiber, and recycled secondary fiber is used as a raw material for papermaking, which can reduce the amount of wood used and is environmentally friendly. In general, 1 ton of high-quality waste paper can make about 800 kg of paper, which can save 2-3 tons of wood, save 1000 kW·h of electricity, and save 50 m3 of water. It is precisely because of this advantage that China has vigorously developed high-quality waste paper and papermaking, making the papermaking industry a typical example of China's development of circular economy, and has been repeatedly affirmed and commended by the government.
In 2017, China's papermaking imported waste paper pulp of 20.63 million tons. If this part of raw materials is replaced by commercial wood pulp, it will require about 40 million tons of wood (converted to 0.5 tons of wood pulp per ton of wood). Then, 40 million mu of trees will be cut down every year. I would like to ask how there is such a forest land in China for paper pulp enterprises to use in pulp production. In addition, even if China has forestry resources for pulp and paper, there are still problems of energy consumption and pollutant emissions in subsequent production. Take wastewater as an example: In general, 1 ton of wood pulp is produced, 30-50 tons of wastewater is discharged, and 150 yuan is spent on wastewater treatment; 20 million tons of wood pulp is produced every year to replace imported waste paper pulp, and it takes 3 billion yuan to process wastewater; 60 million tons of wood pulp will cost 9 billion yuan instead of waste paper. For wastewater alone, the use of waste paper as a raw material for papermaking saves huge processing costs.
Waste paper and paper will retain 120 million tons of wood per year