7 r's

14,806 views 53 slides Sep 05, 2015
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About This Presentation

recycle reuse reduce respect refuse rethink and repair the waste


Slide Content

Presentation author: G.TEJASRI.

A SECOND LIFE FOR WASTE Wealth from waste is “ GREEN ENGINEERING ” Green engineering is the process and design of products that conserve natural resources, and impact the natural environment as little as possible.

The 7 R ’s R educe: use less of something. R ecycle: to re-use the item and create something else with it. R euse: to put into action or service again. R espect: treat with consideration R efuse: to avoid buying products that are not sustainable or recyclable R ethink: to think about how you can reuse a product or its materials R epair: to repair products rather than buy new ones.

Quantity of Waste contribution The average person throws away 726 kilograms of waste each year The average family throw away the amount equal to 1 . 5 TONS of rubbish each year

General items found in solid waste :

Composition of different kinds of wastes in waste stream:

Survey conducted to find the reasons for dumping wastes:

Different colored bins -- placed to separate different kind of wastes at dumping sites. Seperating wastes at the collection point itself:

Paper wastes No question if all papers are recyclable.Just remember: ”If it tears, it’s recyclable”!!!

Marilyn manro Bags made out of used paper plastics 01. 02. 03. 04.

World famous actor “marlin manro ” made out of waste papers is now one of the most famous and visiting place Bags made out of waste paper plastics Waste cardboard is converted into a beautiful show piece used for storing things.

By recycling 1 ton of paper, we save:  17 trees ( If all our newspaper were recycled, we could save about 250,000,000 trees each year!! )  7,000 gallons of water  380 gallons of oil  3 cubic yards of landfill space( Paper takes up as much as 50% of all landfill space )

Plastic wastes

House made out of waste plastic bottles in NIGERIA(one of the poverty driven places )

01. 02. 03. 04.

my 05. 06. 07. 09. 07. 08.

construction of green house Furniture made out of waste plastics( mexico ) Green Classroom Shop made with waste plastics Green parking shed Waste plastic container used for storing Bag made out of plastic seat covers Green umbrella Steps made out of plastic bottles

1/3 of all garbage is packaging (each year we use 25 billion plastic containers) Manufacturers can make one extra-large T-shirt out of only five recycled plastic soda bottles. Recycling plastic saves twice as much energy as burning it in an incinerator Recycling one ton of plastic saves 7.4 cubic yards of landfill space.

Cloth wastes Donate to the needy but don’t Dump

01. 02. 03.

05. 04. Furniture covers made out of waste clothings Hand bag made out of waste cloth pieces Fashionable clothings made out of abandoned clothes Pencil pouch made with outer cover of tennis balls Bio bag or green bag

E-wastes

Metal wastes

01.“Skull sculpture” made with waste metal tins is now an attractive structure in parks 02. Human sculpture made with metal scraps (depicting “save the earth”) 03. Metal tins turn to pots increasing the aesthetics of walls

01. 02. 03. 04.

Tyre rim turns to wall clock A Beautiful room décor item Play space for kids Flower pot

Recycling aluminum cans saves 95% of the energy required to make aluminum cans from scratch. The energy saved from recycling one aluminum canwill operate a computer for THREE hours!! All steel is 100% recyclable and can be recycled many times without losing any quality

Abandonded Tyres

Abandoned vehicles

“Car towers” attractive structures in public places reducing both waste disposing problem and occupying less space

Glass wastes

Giant fish sculpture jumping out of the beach at rio de janerio

Glass can be recycled an infinite number of times Recycling one ton of glass saves the equivalent of 10 gallons of oil. The energy saved from recycling one glass bottle will operate a 100-watt light bulb for four hours .

Food wastes

Composting Donating waste food

Wood wastes

01 02. 03. 01.

“Compressed wood” is that which has been impregnated with resin and subjected to a high pressure to increase its density and strength. (this is stronger than normal ply wood). “Particle board” also known as particleboard and chipboard, is an engineered wood product manufactured from wood chips, sawmill shavings, or even saw dust, and a synthetic resin or other suitable binder,which is pressed and extruded. Large pieces of whole wood are mulched and then washed, and a solution that is basically glue based is added back into the pulp and then it is dried and "compressed" into panel shapes for use called as “particle board ” A form of wood fuel, wood pellets are generally made from compacted sawdust or other wastes are used as heating fuels called as “fuel pellets”

Hazardous wastes

Incineration is the best method as the final product is an inert one.

Public Awareness

NOTHING IS OBSOLETE before you throw it away as scrap, think again.

REFERENCES: http://www.learner.org/interactives/garbage/solidsolut.html http://www.epa.gov/osw/wycd/catbook/the12.htm http://www.thisland.illinois.edu/57ways/57ways_27.html www.wikihow.com/Reduce-Solid-Waste www2.epa.gov/recycle www.designrulz.com/product-design/2012/11/45-ideas-of-how-to-recycle-plastic-bottles/ www.emag.suez-environnement.com/en/a-second-life-for-waste?gclid=CPGRqfKP37oCFcM34godLwcAhQ www.calrecycle.ca.gov/reducewaste/home/ www.epa.gov/region9/waste/solid/reduce.html http://www.epa.gov/epaoswer/osw/kids/quest/index.htm http://www.inform.umd.edu/CampusInfo/Services/ECO/ Answerbag   http://www.answerbag.com/q_view/910306#ixzz2kY8yYpdw