Waste recycling, also known as materials recovery, is the process of converting waste materials into reusable objects to prevent waste of potentially useful materials, reduce the consumption of fresh raw materials, energy usage, air pollution (from incineration) and water pollution (from landfilling) by decreasing the need for “conventional” waste disposal, and lower greenhouse gas emissions as compared to plastic production. Recycling is a key component of modern waste reduction and is the third component of the “Reduce, Reuse, and Recycle” waste hierarchy.
There are some ISO standards related to recycling such as ISO 15270:2008 for plastics waste and ISO 14001:2015 for environmental management control of recycling practice. Recyclable materials include many kinds of glass, paper, metal, plastic, textiles, and electronics. The composting or other reuse of biodegradable waste—such as food or garden waste—is also a form of recycling. Materials to be recycled are either brought to a collection center or picked up from the curbside, then sorted, cleaned, and reprocessed into new materials bound for manufacturing.
In the strictest sense, recycling of a material would produce a fresh supply of the same material—for example, used office paper would be converted into new office paper or used polystyrene foam into new polystyrene. However, this is often difficult or too expensive (compared with producing the same product from raw materials or other sources), so “recycling” of many products or materials involves their reuse in producing different materials (for example, paperboard) instead. Another form of recycling is the salvage of certain materials from complex products, either due to their intrinsic value (such as lead from car batteries or gold from printed circuit boards), or due to their hazardous nature (e.g., removal and reuse of mercury from thermometers and thermostats).
Critics dispute the net economic and environmental benefits of recycling over its costs, and suggest that proponents of recycling often make matters worse and suffer from confirmation bias. Specifically, critics argue that the costs and energy used in collection and transportation detract from (and outweigh) the costs and energy saved in the production process; also that the jobs produced by the recycling industry can be a poor trade for the jobs lost in logging, mining, and other industries associated with production; and that materials such as paper pulp can only be recycled a few times before material degradation prevents further recycling. Proponents of recycling dispute each of these claims, and the validity of arguments from both sides has led to enduring controversy.
More Informations
Certainly! Waste recycling is a complex process that involves several stages and methods to convert waste materials into reusable products. Here is a more detailed overview:
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Collection: The first step in recycling is the collection of waste materials. This can be done through curbside collection, drop-off centers, or commercial collection services. The goal is to gather recyclable materials such as paper, plastic, glass, and metal.
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Sorting: After collection, the recyclables are sorted to separate them into different categories. This can be done manually or through automated processes. The sorting process ensures that materials are clean and free of contaminants.
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Processing: Once sorted, the recyclables are processed to prepare them for re-manufacturing. This may involve shredding, crushing, or melting the materials to create raw materials that can be used in manufacturing.
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Manufacturing: The processed materials are then used to manufacture new products. For example, recycled paper can be used to make new paper products, while recycled plastic can be used to make new plastic items.
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Market Development: Developing markets for recycled materials is crucial for the success of recycling programs. This involves creating demand for recycled products and ensuring that they are competitive with products made from virgin materials.
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Purchase of Recycled Products: Buying products made from recycled materials closes the recycling loop and supports the recycling industry. Consumers can help by choosing recycled products whenever possible.
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Environmental Benefits: Recycling offers several environmental benefits. It reduces the need for landfill space, conserves natural resources, saves energy, and reduces pollution associated with the extraction and processing of raw materials.
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Economic Benefits: Recycling also has economic benefits. It creates jobs in the recycling industry, reduces the cost of waste disposal for municipalities, and can generate revenue from the sale of recycled materials.
Overall, waste recycling is an important practice that helps to conserve resources, reduce waste, and protect the environment. By participating in recycling programs and supporting the use of recycled products, individuals can play a role in creating a more sustainable future.