The Ultimate Guide to Plastic Recycling

Plastic is among the most popular and important materials used in the modern world. However, its popularity is part of the huge problem and reason why plastics should be recycled. Instead of throwing them away polluting the land and our water bodies, we can optimize the lifespan of plastics by recycling and reusing them.



Process of Plastic Recycling

The following is a step by step process of plastic recycling:

1. Collection

Plastics are available in a number of forms for example plastic containers, jars, bottles, plastic bags, packaging plastic, big industrial plastics just to mention but a few. Due to their nature and availability, there are plastic collection centres and some business people have ventured into plastic collecting business as a source of income. Tons and tons of scrap plastic are collected and sent to a collecting yard where they are then packed and transported to plastic processing plants. Unfortunately, not all countries have the capacity to recycle plastic. Very few developing countries can actually recycle plastic. This means that, plastic waste is still a major problem to some countries in the world.

2. Sorting

The actual plastic recycling process starts with sorting of the different plastic items by their resin content and color. This process is also done to ensure all contaminates are eliminated. There are specially designed machines that help in sorting of the plastics according to their resin content. Then the recycling mill sorts the scrap plastic by symbols at the bottom of the plastics.

3. Shredding


4. Cleaning


5. Melting


6. Making of pellets


What are the Common Recycled Plastics?

There are numerous and common types of recycled plastics as can be seen below:

  1. Polyethylene Terephthalate

This type of recycled plastic is tough, has excellent clarity, is strong and has barrier to moisture and gas. It is used in the manufacture of water, soft drinks, peanut butter and salad dressing bottles and jars.

  1. High Density Polyethylene

This recycled plastic is known for its excellent stiffness, resistance to moisture, strength, versatility, toughness and reduced permeability to gas. It is used in the manufacture of water, juice and milk bottles. It is also used to make retail and trash bags for households and business people.

  1. Polyvinyl Chloride

Abbreviated as PVC, polyvinyl chloride has a number of applications. It is versatile, can be bended easily, it is tough and strong. This recycled plastic is commonly used in the manufacture of juice bottles, PVC piping and cling films.

  1. Low Density Polyethylene

This is the most common type of recycled plastic. It has exceptional ease of processing; it is strong, flexible, tough, and resistant to moisture and it’s easy to seal. This plastic is usually used in making frozen food bags, flexible container lids, freezable bottles just to mention but a few.

Advantages of Recycling Plastics

Plastics should be recycled because of a number of reasons as can be seen below:

  1. Provision of a Sustainable Source of Raw Materials

Recycling plastics provides a sustainable source of raw materials to the manufacturing industry. Once the plastics are recycled, they are sent to manufacturing industries to be redesigned and converted into new shapes and used in different appliances.

  1. Reduces Environmental Problems

Since plastics are non-biodegradable, they pose a high risk to the people and the environment as a whole. They can block sewer lines, drainages and other waterways leading to blockages and unwanted pileups. When plastics are eliminated through recycling, the environment looks clean and inhabitable.

  1. Reduces Landfill Problems

Recycling plastics minimizes the amount of plastic being taken to the ever diminishing landfill sites. Most countries have designated areas specifically meant for burying plastics. When they are recycled, these sites will receive little plastic garbage. The remaining areas can be used for other purposes instead of dumping plastics that do not rot. These areas can be used for agriculture or for human settlement. It should be understood that human population is growing each day and land is becoming a problem. Instead of misusing the land for garbage disposal it can be used for settlement and other important economic activities.

  1. Consumes Less Energy

Recycling of materials including plastics requires less energy as compared to making the plastic from scratch. This saves energy and that energy can be diverted to other important things in the economy. It is therefore important to encourage plastic recycling in the manufacturing industry as it will save the economy billions of money. The process of manufacturing plastic using natural raw materials is expensive and time consuming compared to the recycling process.

  1. Encourages a Sustainable Lifestyle among People

Individuals who have ventured into plastic collection and recycling business will experience improved lifestyles as they will get their daily income from the business. This will in the long run improve the economy and boost the living standards of the people. So do not just sit there doing nothing, embrace plastic recycling activities and improve your economic standards.

In summary, any sort of effort aimed at saving the environment is very important and matters a lot. Since its inception during the environmental revolution in the late 1960s, plastic recycling is one of the most encouraged solid waste management programs in the world. Prior to the push to use of plastic containers by manufacturers, products were packaged in glass, metal and paper. Therefore, in order to keep our environment clean, reduce landfills, provide a sustainable supply of plastics to manufacturers, it is important to recycle plastics.



Image credit: Hans

