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How much energy is expended recycling paper

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in the pulp (with no extra pollution or De-inking this is more a mechanical than a chemical process. Ashley Micks, december 12, 2012, submitted as coursework for, pH240, Stanford University, Fall 2012. According to the Environmental Paper Networks Paper Calculator, it takes about 32 million BTUs of energy to produce 1 ton of virgin paper fiber. Energy served by the grid is primarily generated by burning fossil fuels, which, as we all know, has significant environmental impacts. Recycling is not always the cheapest alternative, however, especially when reuse is an option, as in the case of glass jars or drink containers. Leahy, study: Recycling Cost Overstated Wired Magazine, 13 Sep. 6 Polystyrene from recycled material costs 88 less than without recycling, but a negligible amount of polystyrene is recycled in the United States because of the difficulty sorting it from other plastics. Most commonly air bubbles are injected into a large vat (de-inking cell) holding the pulp. And there is still much good quality chinese paper chicken paper going to waste. 6 Paper (in particular newspaper) and glass have lower energy savings than the previous materials, with recycled products costing 45 and 21 less energy respectively. Producers of recycled paper aver that theyve learned to manage their sludge and can even burn it to produce energy in some instances. Bottom-line: producing recycled paper uses less energy than virgin paper production overall and has a smaller impact on the environment throughout its production cycle. My office generates an embarrassingly large amount of paper waste, so Im always careful to place my used documents in the recycling bin. When a tree goes into the plant, about 23 percent of it consists of fiber that can be used to make paper. Virgin paper plants burn tree waste products to cogenerate some of their energy. But there are many areas where trees are grown as a 'cash crop often in mono-culture fashion (one species of tree). Many common inks contain metals such as chromium, zinc, and lead, which can seep into water supplies. But incineration itself can cause pollution! And in areas where clear-felling is practised, it can lead to soil erosion. Many recycled coated and office papers are now indistinguishable from virgin equivalents, not just in their performance, but even in their appearance. But study after study has debunked this assertion, and the Environmental Protection Agency claims that producing recycled paper requires 40 percent less energy than making paper from virgin wood, or about.6 fewer gigajoules per ton of finished product. Theres also been a move toward reusing wastewater in recycling facilities, as well as eliminating the need for potent de-inking chemicals. Without any regard to where the energy comes from, that shows that it takes 31 percent less energy to produce recycled paper. . Manufacturing from Raw Materials. And coal is generally considered dirtier than wood, in terms of carbon dioxide emissions. But the eco-benefits of paper recycling may not be quite as grand as you envisionturning post-consumer paper into saleable products is by no means a clean endeavor. Discovery News, 27 Dec.

Is recycled paper better for the environment. Water, but the comparison with incineration is how much energy is expended recycling paper less clear cut. Recycling paper not only saves energy but also saves trees. And the environmental advantages vary widely between recycling facilities. And the used paper can then become organic waste to complete the cycle. The discussion of energy consumption raises another issue that it is worth addressing. Or return such containers to the store to be cleaned and refilled 6 If individuals own their own containers made of durable material.


How much energy is expended recycling paper. How to measure ring size with paper and ruler

Recycled paper production consumes 31 percent less energy than virgin paper production. And soon more cities may be able to take advantage of these savings as the technology develops. S Most recycled papers require little if any bleaching. The remaining part of the tree can be burned to create energy. The sections below argue that recycling programs can in fact be worth their cost. What about all the oil thats expended to get trees from the Canadian Boreal Forest to the paper mill and then products to your friendly neighborhood Staples. But the Lantern doesnt see how this could dramatically alter the equationif were going to factor in transportation. Its still better than landfilling, according to the, infrared microwave sorting can help.

Reuse doesn't work as well for printed paper, or for non-container metal or plastic items such as electronics or packing material, so recycling may still be the best option in these cases.6 Aluminum offers the most savings, with cans from recycled material requiring as little as 4 of the energy required to make the same cans from bauxite ore.