Solid Waste Management Techniques

composting is waste management technique.

INTRODUCTION

Solid Waste Management: Solid waste management is a process of actions and activities that are employed to manage waste that is being produced from various sources. It includes all actions from the collection, transportation, to the final disposal of waste. Check out Solid waste – types, sources, and effects

SOLID WASTE MANAGEMENT TECHNIQUES

Solid waste management techniques are methods by which waste is managed. Some methods are used to reduce the size of waste. It is considerable fact that 3Rs – a waste management technique that is reduced, reusing, and recycling method – should be given priority above all methods but not all kinds of waste can be treated with this method. Solid waste management techniques that are commonly used for waste management are listed below.

  • 3Rs: It is a “reduce, reuse, and recycle” method. Reduce means using products that produce less waste, reuse means using products again and recycle means using the discarded products as a resource. It is based on the effective use of resources. Waste is generated in high quantities can be minimized by using the 3Rs method.
  • Landfill: It is a land area, which is specially designed for the disposal of solid waste.
  • Composting: This method consists of the decomposition of biodegradable waste.
  • Incineration: In this method, waste is reduced in size by burning at high temperatures. The residues are then subjected to landfill sites.
  • Waste to Energy: It is a method by which energy is produced as a result of incineration.
  • Pyrolysis: It involves the thermal breakdown of organic waste for industrial purposes.

Some common solid waste management techniques have been listed below with advantages and disadvantages.

Serial No. Solid Waste Management Technique Types of Waste Advantages Disadvantages
1. Landfills Non-biodegradable Waste – Ash, sand, etc. It is a cheap method and landfill sites can be used for WtE sources. It results in contamination of water reserves. It is a source of greenhouse gases.
2. Composting Degradable Waste- Organic waste, It provides nutrients to the soil, assists soil biota, and eliminates the need for fertilizers. It creates a bad odor and takes time.
3. Incineration Medical Waste, Hazardous Waste, It minimizes the quantity of waste and one of the efficient waste management techniques. It causes air pollution and an expensive method of managing waste.
4. Waste to Energy Municipal Solid Waste It can be used to meet the demand for electricity consumption. Energy is produced by this method. It produces environmental toxins such as dioxins and furans.
5. Pyrolysis Plastic Waste It is a simple method and can be used for all types of waste. This method is complex and expensive.
6. 3Rs E-waste It reduces the demand for material and saves money. This method cannot be employed on large scale and often produces pollutants.

 

CONCLUSION

The population is kept on increasing due to which nature reserves are being overly exploited. Industries are increasing in numbers.  All these factors are putting stress on the environment. Anthropogenic activities are causing environmental pollution that must be controlled to prevent further damage to the only living planet. Solid waste often contains toxic, hazardous, radioactive materials and it should be managed properly. Because untreated solid waste causes negative effects on humans, animals, and the environment.

Also, check out Improper Management of Solid Waste in Pakistan and Its Effects

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