The following Topics and Sub-Topics are covered in this chapter and are available on MSVgo:
We use and consume many things in our daily life – food, toiletry, stationery, electrical/electronic items, etc. It’s not just homes but also the offices, shops, factories, vehicles, etc., that utilize huge amounts of goods daily. Can we allow these to be turned into garbage, or should we try to break this cycle of garbage in and garbage out?
This is also known as domestic or residential waste. This is the waste generated in our homes due to our daily activities such as cooking, use of packaged items, toiletries, paper, electronics, etc.
Industrial activities involve manufacturing from various raw materials and consumables such as fuel, chemicals, etc. Not all the raw materials and consumables are fully utilized. The leftovers are a waste that is categorized as:
Solid waste, also known as trash or garbage, consists of everyday items discarded by the public, institutions and generated by civil activities.
The basic approach to waste management is to reduce, reuse and recycle. You can look around in your house, school, society and start categorizing things that should be reused and recycled to reduce waste generation. Let’s look at this approach in detail.
Waste reduction can be done in the following ways:
It involves recovering or extracting useful materials from the waste. Waste items such as aluminum cans, paper, cardboard, plastic bags, bottles are all recoverable. These are recycled to produce new products.
Some interesting facts about recycling:
Wastes such as wood and other organic material are disposed of by controlled burning at high temperatures, called combustion. The waste is reduced to ash and produces gases. The gases are treated to reduce toxicity before releasing into the environment.
The ash, thus produced, is also used to make specialized bricks and other insulating material. Plants are being set up to use the heat generated by burning waste to generate electricity at many garbage sites.
Wastes not amenable to recycling or recovery are dumped in landfills, located at sites far-off from the cities and towns operating under strict laws. Layers of soil are added over the waste to prevent water contamination and contact with air.
Raising public awareness about the benefits of waste management is key to protecting our health and the environment. Swachh Bharat Mission or Clean India Mission, a countrywide campaign initiated by the Government of India in 2014, helped create mass awareness towards waste management.
Waste is a byproduct of human activities that has become a menace now. A scientific approach to waste management will go a long way in making our cities green, clean, and healthy. This is one of the most relevant and burning issues of our times, and we all should actively follow the formula of ‘reduce, reuse and recycle’ to protect our environment.
1. What is garbage or waste (examples of garbage)?
Ans. After use, materials discarded by humans – food scraps, plastic bags, packaging material, etc., are considered garbage or waste.
2. What is Waste Management?
Ans. Waste management is the proper collection, transportation, and disposal of waste materials.
3. What are the different types of wastes/garbage?
Ans. Wastes are broadly classified as – Household waste, Industrial waste, Other solid waste (like medical waste), construction waste, etc.
4. What are the different types of waste disposal methods?
Ans. Types of waste disposal methods are Recycling, composting (vermicomposting), incineration, landfills, etc.
5. How can we reduce waste?
To explore and learn more about garbage/wastes, waste management, vermicomposting, you can download the MSVgo app. MSVgo is a video-based learning app designed to explain concepts such as simple, interactive, and easy-to-understand visualizations. Visit the iOS App Store, Google Play, or the website https://msvgo.com/ to download it. Welcome to an interesting way to learn difficult Math Science topics with ease!