In general, recycled Paper Products are classified according to their different categories. There are six categories of paper products:
The first category: white waste paper, refers to the left side of the paper that has not been printed or printed, usually white without words and pigments.
The second category: book blocks, those books that have not been released after printing or have been released but not sold.
The third category: those books that are useless and old newspapers.
The fourth category: the more common cardboard boxes, is also the most generated paper waste in our lives.
The fifth category: kraft paper, its tear strength, dynamic strength is very high, generally common is the portfolio, old envelopes and paper bags.
The sixth category: mixed waste paper, which can only produce the lowest-end paper products after recycling.
Then why should we recycle it? Is it just considering its economic value? In fact, economic value is only one factor that promotes the recycling of waste paper. In the case of avoiding the use of paper products, the recycling of waste paper has an ecological environment. Immeasurable role.
One ton of waste paper can produce 850 kilograms of recycled paper with good quality, save 3 cubic meters of wood, save 100 cubic meters of water, save 300 kilograms of chemical raw materials, save 1.2 tons of coal, save 600 degrees, and produce 20,000 tons of office space. Recycled paper can save 66,000 cubic meters of wood a year, equivalent to protecting 520,000 trees, or adding 5,200 acres of forest. China's waste paper resources are very rich. The relevant data shows that China's paper consumption is about 35 million tons per year, calculated by a third of waste, and the annual waste paper that can be recycled is more than 10 million tons.
The paper industry has a large amount of wastewater and a wide distribution, which is one of the industries with serious pollution in China. The production of 1 ton of pulp requires 100 tons (wood pulp) to 400 tons (grass pulp) of water, which is partially discharged. In the process of recycled paper pulping, the environmental pollution caused by gas and water quality is lower than that of ordinary paper, and the discharge of wastewater can be reduced by 50%. In particular, several processes in the early stage of papermaking can be omitted, and the black liquor with the most serious pollution will not be produced.
But not all waste paper is suitable for recycling. Contaminated paper such as napkins for wiping mouths, diapers used by babies, or toilet papers stained with grease stains or toilet papers are not recyclable. They are dry garbage.
Editor in charge: Zheng
This article is posted on the website for the purpose of transmitting more information and does not imply endorsement of its views or confirmation of its description.
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