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Recycling PPT.pptx

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T. M. Ashikur Rahman
T. M. Ashikur Rahman

Recycling is the process of converting waste materials into new materials and objects, and includes recovering energy from waste. There are two main types of recycling processes - open-loop recycling which produces different end products, and closed-loop recycling which produces the same end product. Common items like plastic, paper, metals and glass can be collected, sorted, and made into new products through recycling. Conducting cost-benefit analyses can determine if diverting specific waste streams from disposal to recycling and reuse provides net economic benefits.

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• Recycling: • Recycling is the process of converting waste materials into new materials and objects. The recovery of energy from waste materials is often included in this concept. The recyclability of a material depends on its ability to reacquire the properties it had in its original state. • Reuse: • Reuse is the action or practice of using an item, whether for its original purpose or to fulfil a different function. It should be distinguished from recycling, which is the breaking down of used items to make raw materials for the manufacture of new products.
• There are two main types of recycling processes — 1. open-loop recycling 2. closed-loop recycling
• Loops for production-waste, product and material recycling:
• Recycling consumer waste:  Collection Curbside collection Source separation Buy-back centers Drop-off centers Distributed recycling  Sorting
Recycling Codes  Recycling codes are used to identify the material from which an item is made, to facilitate easier recycling or other reprocessing.  The presence on an item of a recycling code, a chasing arrows logo, or a resin code, is not an automatic indicator that a material is recyclable; it is an of what the item is made of. Material Types Codes plastic 1-7 Batteries 8-14 Paper 20-22 Metals 40-41 Biomatter/Organic material 50, 51, 60-69 Glass 70-79 Composites 80-99
Cost–benefit analysis This study examines the costs and benefits of recycling & reuse to address the following questions:  What are the economic costs and benefits of diverting a number of waste streams from current disposal practices?  Are there opportunities for net economic benefits from increased levels of diversion of individual waste streams ?  What is the net economic effect of given levels of recovery of each of these wastes ?
There are 3 main ways to recycle & reuse….. Recyclates Remanufacturing Repurposing Recyclate is a raw material that is sent to, and processed in a waste recycling plant or materials recovery facility, and used to form new products. For example, plastic bottles that are collected can be re-used and made into plastic pellets, a new product.
Remanufacturing is "the rebuilding of a product to specifications of the original manufactured product using a combination of reused, repaired and new parts". It requires the repair or replacement of worn out or obsolete components and modules. Repurposing is to use a tool for use as another tool, usually for a purpose unintended by the original tool-maker. Typically, repurposing is done using items usually considered to be junk or garbage.

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Recycling PPT.pptx

  • 1. • Recycling: • Recycling is the process of converting waste materials into new materials and objects. The recovery of energy from waste materials is often included in this concept. The recyclability of a material depends on its ability to reacquire the properties it had in its original state. • Reuse: • Reuse is the action or practice of using an item, whether for its original purpose or to fulfil a different function. It should be distinguished from recycling, which is the breaking down of used items to make raw materials for the manufacture of new products.
  • 2. • There are two main types of recycling processes — 1. open-loop recycling 2. closed-loop recycling
  • 3. • Loops for production-waste, product and material recycling:
  • 4. • Recycling consumer waste:  Collection Curbside collection Source separation Buy-back centers Drop-off centers Distributed recycling  Sorting
  • 5. Recycling Codes  Recycling codes are used to identify the material from which an item is made, to facilitate easier recycling or other reprocessing.  The presence on an item of a recycling code, a chasing arrows logo, or a resin code, is not an automatic indicator that a material is recyclable; it is an of what the item is made of. Material Types Codes plastic 1-7 Batteries 8-14 Paper 20-22 Metals 40-41 Biomatter/Organic material 50, 51, 60-69 Glass 70-79 Composites 80-99
  • 6. Cost–benefit analysis This study examines the costs and benefits of recycling & reuse to address the following questions:  What are the economic costs and benefits of diverting a number of waste streams from current disposal practices?  Are there opportunities for net economic benefits from increased levels of diversion of individual waste streams ?  What is the net economic effect of given levels of recovery of each of these wastes ?
  • 7. There are 3 main ways to recycle & reuse….. Recyclates Remanufacturing Repurposing Recyclate is a raw material that is sent to, and processed in a waste recycling plant or materials recovery facility, and used to form new products. For example, plastic bottles that are collected can be re-used and made into plastic pellets, a new product.
  • 8. Remanufacturing is "the rebuilding of a product to specifications of the original manufactured product using a combination of reused, repaired and new parts". It requires the repair or replacement of worn out or obsolete components and modules. Repurposing is to use a tool for use as another tool, usually for a purpose unintended by the original tool-maker. Typically, repurposing is done using items usually considered to be junk or garbage.