The development and diffusion of environmentally

friendly technologies

What is an environmentally friendly technology?

• They should protect the environment• They are less polluting• Use resources in a more sustainable manner • Recycle residual wastes

The benefits of environmentallyfriendly technologies

• Reduce the use of raw material

• It leads to increased efficiency

• It creates new buisness opportunities

• Can be applied to most companies with long-term benefits.

Improving technology can be achieved by:

• Changing the process or manufacturing technique

• Changing input matreials

• Changes to the product

• Reusing materials

Recycling

• Recycling is processing waste into new products

• It reduces: energy usage, air and water pollution

• Key komponent of modern waste reduction

Recyclable materials

• Glass• Paper• Metal • Plastic• Textiles• Electronics

Sorting• Recyclates are

collected and delivered to a central collection facility

• Then different types of materials must be sorted

All of these products are made of recycled materials

Green technologies

• A wind farm is a group of turbines at the same location

• They are used for production of electric power

• Several hundred turbines on one farm

• They can cover thousands of square miles

• The land between them may be used for cultivation

Wind Turbines

Advantages

• It consumes no fuel• Emits no air pollution• Within a few months

the building cost of a plant cleares by operating it

• Makes less impact on the environment

Photovoltatics(PV)

• PV is a method of generating electrical power

• It converts solar radiation into direct electricity

• It uses solar panels containing photovoltatic material

• Due to the growing demand for renewable energy sources, it became more advanced in the last few years

PV in houses

• It’s often associated with buildings

• Usually mounted on the top of the roof or on the walls

• A well designed PV sytem can produce enough electricity to replace the grid

PV in transport

• Firts used for electric power in space

• It is being used increasingly to provide auxiliary power in boats and cars.

• Solar powered cars have been demonstrated

Geothermal energy

• Geothermal energy is thermal energy generated and stored in the Earth

• It originates from the radioactive decay of minerals

Geothermal energy• First it was used for

bathing but today it’ s better known for electricity generation

• It’s cost effective, reliable and sustainable

• Earth’s geothermal resources are more than adequate to supply our energy needs

Lightning energy

• Scientist are trying to implement a lightning capturing scheme

• The idea is to capture and store and the transform the electricity of the lightning for later grid use

• It would be practical in areas with frequent thundersstorms such as Florida

Lightning energy

• One storm can discharge enough electricity to supply the USA for 20 minutes

• One single strike would be able to light 150,000,000 light bulbs

Sources• http://www.unglobalcompact.org/AboutTheGC/TheTenPrinciples/principle9.html• http://www.unglobalcompact.org/AboutTheGC/TheTenPrinciples/principle9.html• http://www.onepennysheet.com/category/energy/page/3/• http://www.magnetal.se/EnablingRenewableEnergy.html• http://www.ics-online.co.uk/ICS_eco_friendly_office_cleaning_services.htm• http://en.wikipedia.org/wiki/Recycling• http://www.ld50.hu/thread/ld50/general/asszosziacio?page=39• http://www.circuitstoday.com/recycle-your-old-electronic-goods• http://fenntarthato.hu/epites/Members/szelesbalazs/hulladek• http://hubpages.com/hub/recycledjewelry• http://inhabitat.com/remarkable-recycled-product-design/• http://en.wikipedia.org/wiki/Wind_farm• http://thefutureofthings.com/pod/1096/repower-5m-largest-wind-turbine.html• http://en.wikipedia.org/wiki/Photovoltaics• http://simpleenergyworks.com/blog/?tag=enphase• http://pvcdrom.pveducation.org/MANUFACT/LABCELLS.HTM• http://www.our-energy.com/geothermal_energy.html• http://peswiki.com/index.php/Directory:Lightning_Power• http://www.webdesign.org/photoshop/text-effects/realistic-lightning-text-

effect.16722.html

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