The recycling of waste paper not only has good economic benefits, but also has a direct bearing on major issues such as environmental governance and conservation of resources and national economy and people's livelihood. The recovery and utilization of waste paper by some advanced countries in the world, both in terms of scale and production technology, have reached a considerable level. China is also striving to develop and strive to catch up with the developed countries. This paper deals with waste paper disposal at home and abroad. analysis.
Waste paper recycling and treatment methods in Switzerland
The recycling of waste paper and cardboard has been practiced in Switzerland for several decades and most citizens have become accustomed to it. The most common method of collection is that people tie waste paper to the door and wait for special agencies to collect it. It is also common in some areas to send waste paper to the collection points set up in villages and towns.
The collected waste paper and paperboard are either sent directly to the paper or paperboard processing plant or are prioritized according to the quality level in the sorting organization. Because the quality of these waste papers does not fully meet the needs of Switzerland for recycling paper mills, a large amount of waste paper is exported and some domestic waste paper that cannot be collected separately is also imported.
The collection of waste paper is mainly undertaken by the local government, as well as by associations and organizations such as the Swiss Paper Recycling Organisation, the Swiss Pulp, Paper and Board Association, the Swiss Waste Paper Trade Association, the Swiss Federation of Corrugated Paper, and the paper and board factory.
The collection of waste paper from villages and towns and the disposal of waste paper mainly come from government taxes or the collection of domestic waste, which is inconsistent with the â€œpolluter paysâ€ principle in Switzerland. Moreover, due to the large fluctuations in the price of paper/cardboard in the world, the change in collection costs is also very difficult to predict. Local governments have a heavy financial burden on the collection and disposal of waste paper. At present, the Swiss associations representing towns, cities and villages and towns are promoting the establishment of a system of advance payment processing. The federal government is drafting an ordinance for this purpose.
German waste paper processing
Although Germany lacks fiber resources, it has to import large quantities of commercial pulp and paper every year. However, due to the large amount of consumption and the high recovery rate of waste paper, a large amount of waste paper is exported every year. Germany is the worldâ€™s second largest exporter of waste paper. In 2004, the output of waste paper and paperboard was 33.253 million tons, and the consumption was 35.071 million tons; the waste paper recycling volume was 22.36 million tons, and the recycling rate was 73%; the net export of waste paper was 6.307 million tons in the same year. , accounting for 28% of the total recovery.
The German two-way system recycling organization will be forced under the jurisdiction of the EU competition regulations to open the tender rules for packaging waste recycling contracts to EU countries. The organization subsidizes waste paper collectors 50 million euros a year, and costs are paid out of annual revenues by the German state-of-the-art green dot marking system. The European Union has requested that it be open to group subscribers operating in the packaging waste business in other EU countries. At present, the relevant agencies are investigating the terms of the new contract terms that they have drafted to provide opinions on the reduction in the amount of subsidies given by the recyclers of paper packaging.
Waste Paper Processing in Australia
Australia's paper fiber composition has begun to accelerate in structure to use waste paper to extract fiber.
To increase the proportion of recycled fibre in Australia, including some waste paper processors, will be subject to additional pressure from the waste paper market. When the market demand is strong, it becomes difficult to quickly sort the mixed waste papers that are collected on the street to meet the sales requirements. In order to standardize the recycling of local waste paper, the Australian Legislative Council on the one hand requires local residents to consciously separate packaging paper, newspapers and magazines, and on the other hand organizes personnel to screen recovered waste paper. However, the implementation of the former found it difficult to do the former, while the latter was costly. Therefore, the management department had to reconsider the feasibility of the concept of â€œresource regeneration and recyclingâ€ promoted by the market in reality. Due to the high cost of sorting waste paper, the sales price cannot meet the cost requirements, so many people began to look for new ideas like â€œgarbage power generationâ€.
The status of waste paper processing in China
The utilization and disposal of waste paper in China in the 1970s was achieved through simple cooking, sizing, beating, and washing, and was used to copy or match toilet paper and low-grade boxboard. By the 1980s, the recycling rate of waste paper had reached About 25%, many manufacturers can also produce deinked pulp. After entering the 1990s, some large and medium-sized paper-making enterprises have successively introduced deinking equipment and technologies including production lines from abroad, and made targeted improvements and innovations to the deinking agent for waste paper and the deinking equipment for waste paper. China's waste paper processing technology and equipment assembly level can be fully developed.
Some teach large-scale cardboard production companies to use the deinking equipment and technology imported from imported waste paper to produce high-end products. Such as Shanghai Hongwen Paper, Fujian Qingzhou Paper Mill, Liaoyang Industrial Paperboard Factory, Anhui Wuhu Oriental Paperboard Factory, etc., using imported waste corrugated boxes, using the thermal dispersion method or the cold-sieving method to process the recycled pulp as the core, the bottom layer of the pulp, in the introduction of the production line Or on the original imported paper machine, the production of kraft boxboard and blended paper bag paper and other varieties not only have high quality and high grade, but also can effectively deal with the imported corrugated paper with adhesives and impurities that affect the production and cause paper diseases. , ensure the normal operation of the production line. The enterprises represented by Guangzhou Paper Co., Ltd., Zhonghua Paper Co., Ltd. and Fujian Nan Paper Co., Ltd. respectively imported deinking production lines or main equipment from foreign countries, adopted flotation-washing comprehensive laws, and processed old newspapers and old ones. Magazine paper. Guangzhou Paper Mill and Fujian Nan Paper Co., Ltd. copied newsprint with recycled pulp. In contrast, Ningbo Zhonghua Paper Co., Ltd. uses waste paper recycled pulp as the core paste and bottom layer paste to produce coated white paperboard, which has achieved good results.
Some domestic research institutes and production units have cooperated in the research and development of deinking technology and equipment. After utilizing the existing conditions of the company to innovate, the production of recycled pulp for small-batch waste paper has been successful. The manufacturers in Xuchang, Jiaozuo, Gansu, and Xinxiang in Henan province have made significant use of imported OCC and other waste papers to copy high-strength corrugated paper and cardboard. Small and medium-sized enterprises such as Fuzhou No. 2 Paper Mill and Nanning Xinyang Paper Mill use old newspapers and old paperboard at the National Equipment and Technology Division to produce toilet paper and low-grade whiteboard paper. Hebi Paper Mill in Henan Province slightly modified the original equipment and used old newspapers to produce recycled newsprint. Xuchang, Yanshi's papermaking street, uses waste paper to produce toilet paper. Some paper mills in Xinmi City have achieved better results by using domestically produced old paper like mid- and low-end products such as boxboard and kraft liner paper.
Domestic equipment manufacturers and chemical production and research institutes have achieved very good results in equipment performance and chemical quality through cooperation. For example, the Hangzhou Light Industry Research Institute developed a small waste paper treatment process and waste paper deinking system. The waste paper processing equipment researched by Liaoyang Paper Machinery Plant and Fujian Light Industry Machinery Plant has formed a supporting system and successfully put into production. Some papermaking machinery factories in Shandong also produced different types of deinking equipment that have already been purchased by manufacturers. There are also various types of deinking agents researched and developed by Fujian Paper Research Institute, Hangzhou Chemical Research Institute, and Tianjin University of Science and Technology, which have also been recognized by users.
(1) When purchasing raw materials for waste paper, it should be strictly controlled. In particular, imported waste paper, in the current situation of more supply channels, must be more cautious. Enterprises must conduct a comprehensive inspection of the operating waste paper suppliers to understand the source of supply, economic strength, and creditworthiness so as to avoid being deceived.
(2) Enterprises with strong financial and technological strengths can purchase foreign corrugated cardboard boxes, old magazine papers, and old newsprint papers, as well as introduce existing foreign deinking technologies and equipment, including production lines, to produce high-quality recycled pulp, Upper grade product. For enterprises that already have straw pulp alkali recovery, they can also use imported waste paper recycled pulp to add straw pulp, commercial wood pulp, and proportionally copy cultural paper.
(3) For paper mills that have been shut down or have no hope of pollution control, a small amount of funds can be invested in a slightly improved reconstruction of the original equipment, using domestic waste paper to produce low-grade toilet paper, ordinary corrugated paper, or recycled newsprint. Can also make use of domestic and imported waste paper with high-grade products, it will be out of the woods.
(4) When the company purchases waste paper, it should be classified and used in combination with its own equipment status, technical strength, and production variety. Can use imported corrugated cartons, AOCC waste paper to produce high-grade cardboard, high-grade corrugated cardboard and paper bags, or as core pulp and bottom-pulp material for the production of white paperboard; using waste newspapers plus about 30% of old magazine paper, after floating Optional - After washing and integrated deinking, the production of newsprint or white pulp core pulp and the bottom lining; the use of imported office waste paper, such as copy paper, computer printing paper, etc., choose a new deinking method, in the improvement of paper Machine or imported production line to produce high-grade cultural printing paper. The domestic waste paper purchased can produce middle and low-grade cardboard and toilet paper. At the same time, when using recycled paper to recycle paper, attention should be paid to the use of chemical additives to make up for the lack of indicators such as the physical strength of paper products.
Through the above analysis, it is not difficult to see that although China's waste paper processing capacity has been greatly improved, there is still a big gap compared with developed countries, and related parts must take effective measures to make waste paper use more in the home. effectiveness.
Author (He Jing)
Source: Shanghai Packaging
Plastic Sealer,Continuous Printing Machine,Continuous Bag Sealing Machine
Shanghai Packaging Machinery Co., Ltd. , http://www.zjvacuumsealer.com