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How is Paper Recycled industrially? Video Lecture | Basic Science for Primary 5

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FAQs on How is Paper Recycled industrially? Video Lecture - Basic Science for Primary 5

1. How is paper recycled industrially?
Ans. Paper is recycled industrially through a process that involves collecting, sorting, pulping, cleaning, de-inking, and re-pulping the waste paper. The collected waste paper is sorted into different grades, and then it is turned into pulp by mixing it with water and chemicals. The pulp is then cleaned to remove any impurities, and the ink is removed through a de-inking process. Finally, the clean pulp is re-pulped, and new paper is made from it.
2. What is the first step in industrial paper recycling?
Ans. The first step in industrial paper recycling is collecting the waste paper. This is done by placing recycling bins in various locations such as offices, schools, and public areas. The collected waste paper is then transported to recycling facilities where it undergoes further processing.
3. What happens to the ink in the recycling process?
Ans. In the recycling process, the ink is removed from the waste paper through a de-inking process. The de-inking process involves treating the paper pulp with chemicals and applying mechanical action, such as agitation or flotation, to separate the ink particles from the pulp. Once the ink is removed, the pulp is cleaned and re-pulped to make new paper.
4. What are the benefits of industrial paper recycling?
Ans. Industrial paper recycling offers several benefits. Firstly, it helps to conserve natural resources as it reduces the demand for virgin wood pulp. Secondly, it saves energy as recycling paper requires less energy compared to producing paper from raw materials. Additionally, it reduces landfill waste, as paper is one of the most common items found in landfills. Moreover, recycling paper reduces water pollution and air pollution associated with paper production. Lastly, it helps in reducing greenhouse gas emissions, as recycling paper produces less carbon dioxide compared to manufacturing paper from scratch.
5. Can all types of paper be recycled industrially?
Ans. Not all types of paper can be recycled industrially. Some types of paper, such as thermal paper used in receipts, and paper contaminated with food waste or other substances, cannot be easily recycled. Additionally, paper that is heavily coated or treated with chemicals may also be difficult to recycle. It is important to separate such non-recyclable paper from the recyclable paper to ensure effective industrial recycling.
33 videos|66 docs|10 tests
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