Waste Management

Views:
 
Category: Education
     
 

Presentation Description

No description available.

Comments

Presentation Transcript

Waste Management:

By Niraj Nandish Waste Management 1 By Niraj

What is Waste:

What is Waste Anything that is thrown away after use is called waste. Waste can be paper, unwanted food, broken glass, plastics, fishing nets, clothes and so on. 2 By Niraj

Types of waste:

Types of waste Bio-Degradable Waste Non-Biodegradable Waste Hazardous Waste Non-Hazardous Waste 3 By Niraj

Bio-Degradable Waste:

Bio-Degradable Waste Biodegradable waste is a type of waste which can be broken down, in a reasonable amount of time, into its base compounds by micro-organisms and other living things, regardless of what those compounds may be. Biodegradable waste can be commonly found in municipal solid waste as green waste, food waste, paper waste, and biodegradable plastics. Other biodegradable wastes include human waste, manure, sewage, and slaughterhouse waste. In the absence of oxygen, much of this waste will decay tomethane by anaerobic digestion. Eg;-Paper, Clothes, Banana peels, fruit, cardboard, vegetables etc. 4 By Niraj

Non-Biodegradable Waste:

Non-Biodegradable Waste Non-biodegradable waste will NOT break down. Examples are plastics, metal and glass. Dangerous chemicals and toxins are also non-biodegradable, as are plastic grocery bags, Styrofoam (polystyrene), and other similar materials . 5 By Niraj

Hazardous Waste:

Hazardous Waste A Hazardous waste is waste that poses substantial or potential threats to public health or the environment . These wastes may be found in different physical states such as gaseous, liquids, or solids. A hazardous waste is a special type of waste because it cannot be disposed of by common means like other by-products of our everyday lives . 6 By Niraj

Non-Hazardous Waste:

Non-Hazardous Waste Non-hazardous waste doesn’t have any significant hazardous properties. However it is not inert and could cause problems if not dealt with properly due to the fact it may biodegrade. Examples of non-hazardous waste include paper, cardboard and plastic. 7 By Niraj

Recycling Waste:

Recycling Waste Recycling is a conservation process which converts waste material into usable products. Advantages of recycling: If you recycle paper, trees that make oxygen for us to breath live longer. If you recycle cans, the energy that would have been used to make more cans is being saved. Recycling helps to limit the amount of glass, paper and plastic that must be produced. This will end with less garbage in landfills because it's being reused. 8 By Niraj

Segregation of waste:

Segregation of waste Waste segregation means dividing waste into dry and wet. Dry waste includes wood and related products, metals and glass. Wet waste, typically refers to organic waste usually generated by eating establishments and are heavy in weight due to dampness. Waste can also be segregated on basis of biodegradable or non-biodegradable waste . 9 By Niraj

The 3R’s:

The 3R’ s The 3R’s are: Reduce:- Reducing means cutting down on the amount of garbage or trash that is made. The best way to reduce is to only buy items you really need. Reuse:- Reuse means using something again rather than throwing it out. That usually means finding a new use, such as making a jelly jar into a drinking glass. Recycle:- Recycle takes materials from items you have finished using and makes them into brand new products. For example, most aluminium cans are made with recycled aluminium. In addition, if you drink bottled water, recycle that plastic bottle instead of throwing it in the trash. 10 By Niraj

Recycling of cans:

Recycling of cans 11 By Niraj

Recycling of paper:

Recycling of paper 12 By Niraj

Recycling of plastic:

Recycling of plastic 13 By Niraj

Recycling of Biodegradable Waste:

Recycling of Biodegradable Waste Biodegradable waste can be recycled by the method of vermicomposting. It is done with the help of earthworms which feed on biodegradable waste. The compost thus obtained is an excellent manure for the farmers. 14 By Niraj

Recycling of non-biodegradable waste:

Recycling of non-biodegradable waste There are three types of recycling non-biodegradable waste and they are: Landfills:- Landfill consists of a large low lying area which is used for solid waste disposal. Garbage collected from garbage dumps are loaded into trucks. These trucks are emptied in landfills. The dumping of garbage continues till landfills get completely full. It is then covered over with a layer of soil. After a landfill is full it can be converted into a park or a playground. The Indraprastha Park in New Delhi is built on a landfill. Incinerators:- Incinerators totally burn away solid wastes and ashes are left behind. This method does not need water. Ashes are biodegradable and easy to dispose off. Generally, all municipal wastes are disposed off by this method. To Make New Products:- All the unusable non-biodegradable wastes are taken to the factories where the things are melted to make new products. For example, broken glass bottles and tumblers are melted to make new glass products. Juice cans are melted to make new cans. Iron scrap is melted to make new iron products. 15 By Niraj

PowerPoint Presentation:

16 By Niraj

authorStream Live Help