The hottest weakness of waste paper recycling in C

2022-09-23
  • Detail

The "weakness" of waste paper recycling in China is that the resources and energy consumption of production behavior are positively related to pollution emissions and environmental impact, which is more obvious in traditional manufacturing industry. For large traditional polluters such as steel, cement, papermaking, printing and dyeing, the efficient and recycling utilization of resources and energy and the optimization of production methods can fundamentally reduce the generation and emission of pollutants

in 2011, China consumed 56.6 million tons of waste pulp, accounting for 62% of the total pulp consumption. More than 2/3 of the top 30 enterprises in China use waste paper for papermaking. The level of waste paper treatment equipment and papermaking equipment in China has gradually been in line with the international advanced level

however, the production of waste paper, an important raw material source relied on by the paper industry, is still not standardized. Domestic waste paper has not formed a unified quality control and trade principle from collection, sorting, transportation to final sales, resulting in unstable output and quality of domestic waste paper, many trade disputes, and waste paper resources can not be recycled more fully

with this in mind, the China Paper Association waste paper recycling classification and Trade Guide (2013) (hereinafter referred to as the guide), which was formulated with the participation of many large domestic paper enterprises, was recently released, making clear and specific requirements for waste paper sorting, transaction contracts, quality inspection, transportation and other links. Through the recognition and implementation of the guide by waste paper purchasers, they can guide the practitioners of the recycling system to classify, sort, package, transport waste paper in a standardized manner and sign contracts to reduce the amount of packaging waste, which is conducive to the smoothness and standardization of the waste paper recycling chain. Qian Yi, Deputy Secretary General of China Paper Association, said

many waste papers are not fully classified and can only be degraded as mixed waste paper, and their value has not been reflected. Waste paper is divided into 51 categories in the United States and 57 categories in Europe. The actual recycling of waste paper in China only includes old newspapers, magazines and cartons

China's 12th Five Year Plan for the development of the paper industry puts forward that China's production and consumption of paper and paperboard rank first in the world, and the development of the paper industry is facing increasingly prominent resource, energy and environmental constraints. In the future, domestic waste paper recycling will be expanded

According to Qian Yi, waste paper resources have become the main raw materials of China's paper industry, and the pulp made of waste paper has accounted for about 64% of China's pulp consumption, which is not low

a considerable part of these waste paper pulp comes from abroad. In 2011, China imported more than 20 million tons of waste paper to strengthen the research and development of product precision performance. Some media reports believe that China's huge demand for foreign waste paper pulp is due to the low domestic waste paper recovery rate, which is lower than the international average level, and the objectively insufficient amount of waste paper recovery; On the other hand, the quality of domestic waste paper is low, so papermaking enterprises prefer to use imported waste paper with higher quality

Qian Yi expressed different views on this. He said that at present, China's import of waste paper accounts for about 40% of the use of waste paper, mainly because China's exported consumer goods need a lot of paper packaging, while the paper packaging of imported goods is not as much as that of exports. This difference is basically equivalent to China's annual import of waste paper

as for the claim that domestic waste paper is of low quality, Qian Yi pointed out that waste paper is a resource rather than a product, and there is no concept of quality. However, there are still many problems in waste paper recycling in China. Many waste papers are not fully classified and can only be degraded as mixed waste paper, and their value has not been reflected. He further explained that the ingredients of raw materials contained in waste paper are different, and there are also differences in the composition and performance of pulps obtained by pulping with different waste paper. When a variety of waste paper are mixed and then pulped, the obtained pulp can only produce paper again according to the fiber with the lowest performance, which is difficult to make full use of the performance of recycled pulp, resulting in a waste of resources. However, some waste papers with large fiber performance differences may be unusable due to their opposite properties, or they can only produce papers with lower quality and performance

different kinds of pulp are used in the production of different paper and paperboard, and the proportion is different. The beating and papermaking processes are also different, and the reuse uses are different. It must be classified and recycled according to the category, so as to make the best use of everything

only sorted waste paper has high added value. Perfect waste paper classification guidelines are the basis of waste paper sorting principles. Most developed countries have established a set of perfect waste paper classification guidelines. For example, the United States divides waste paper into 51 categories and Europe into 5 groups and 57 species. In fact, China has officially implemented the national standard "technical requirements for waste paper reuse" on June 1st, 2007, which specifies the classification requirements of 11 types of waste paper in China, the precautions for the installation and use of plastic testing machines, sampling and test methods, etc

classification is the key link of the resource recycling industry, but it is also the weakness of relevant domestic industries at present. Although the domestic waste paper industry has a long history, from residents to individual and community collection points, the classification is relatively simple, mainly including old newspapers, magazines and cartons. A considerable number of self-employed or enterprise recycling methods are primitive and backward, and they do not have their greatest advantages to form a standardized recycling, sorting, packaging procedures and effective management mechanism, resulting in poor quality, high impurity content, high cost and low efficiency of waste paper purchased. The implementation of the above standards has encountered practical challenges

Copyright © 2011 JIN SHI