What is Recycling? How the Waste and Scarce Materials Can be Made Useable?

Recycling of Waste and Scarce Materials

Recycling is the recovery and reuse of waste materials for manufacturing purposes. A large amount of solid waste such as iron, glass, plastic and rubber can be utilized and manufactured reusable. Recycling is important for:

(1) Waste reduction to control environmental pollution. 

(2) Preservation of raw goods materials and natural resources. 

(3) Wastewater treatment saves water, which is scarce in many cases parts of the world.

(4) Recycling saves energy and money.

Many materials are thrown away as waste, such as paper, cardboard, plastic, rubber, metal glass etc. can be recovered and recycled through relevant industries.

We must protect natural resources so that environmental pollution cannot occur controlled. A large amount of domestic and industrial waste is disposed of as waste. Many of discarded materials are valuable and can be recycled and used. For example, newspapers paper bags, cardboard boxes, if thrown away, represent a loss of material. More trees would they must be cut down to be papers. This would lead to deforestation. By reusing waste recycling helps reduce the problem of solid waste disposal. Recycling solid waste means there is less waste to burn. Many industries produce wastes that contain metals. Recovering these metals from waste not only helps to conserve metal, but also reduce environmental pollution.

Recycling of new bottles from old one

Recycling sewage effluent through treatment can make it reusable. This is important in those parts of the world where water is very scarce. Wastewater, if not treated, represents a loss water. Untreated sewage also pollutes streams, rivers and lakes. This makes the water unsuitable human consumption. In urban areas, wastewater can be treated in a septic tank. Cleaned up waste the water is then discharged into rivers, streams or lakes, such water may drain into reservoirs and later processed and used for human consumption.

Recycling waste materials can save energy and money. Some household waste e.g. paper can be burned to obtain energy for domestic purposes. This can be done to provide warmth hot water and central heating.

Broken glass bottles, cups, glasses can be crushed and recycled. Use of crushed glass making new containers saves materials. Energy and costs are reduced because the process uses less fuel.

Similarly, recycling aluminum cans and bottle caps can save materials, energy and money.

Organic manure and thermal energy are more practical things we can get from recycling of waste materials. Some developed countries are trying to generate electricity using garbage burning.

Garbage disposal.

In developed countries, there are three methods of waste disposal.

i) Compost from natural fertilizer

ii) Combustion in incinerators

iii) Bury underground according to hygienic methods.