3. Green technology is the environment friendly way to
protect the Earth’s natural resources and the
environment we inhabit.
Its application of knowledge to reduce impact of
human activities on the environment.
By natural resources we mean surface
water, Atmosphere, Coasts, Land etc.
Protection of environment we mean to protect all
these natural resources from contamination
, pollutants and toxic chemicals.
4. Types of Environmental Technology
Recycling
Renewable Energy
Water Purification
Air Purification
Sewage Treatment
Solid Waste Management
Energy Conservation
5. Recycling
Recycling is processing used materials (waste) into
new products to prevent waste of potentially useful
materials.
Recycling means making waste or already used things
into brand new products.
6.
7. Renewable Energy
Renewable Energy is energy which comes from natural
resources.
About 16% of global energy is from renewable resources.
By renewable energy we mean
wind energy, solar energy , biomass , hydro power energy.
8.
9. Water Purification
Water purification is the process of removing
undesirable chemicals, biological
contaminants, suspended solids and gases from
contaminated water.
Simply it is the process of removing contaminants
from raw water source.
Most water is purified for human consumption
(drinking water).
According to a 2007 (WHO) report, 1.1 billion people
lack access to an improved drinking water supply.
10.
11. Air Purification
Air can be purified by growing common plants
because they convert Carbon Dioxide into Oxygen.
For example: Neem tree ,Palm tree, Tulsi tree
,Eucalyptus etc
12.
13. Sewage Treatment
It is similar to water purification
It is the process of removing contaminants from
wastewater and household sewage.
Its objective is to produce environmentally safe fluid
suitable for safe disposal or reuse.
14.
15. Solid Waste Management
Solid waste management is the
recycling, reuse, disposal and treatment of solid waste.
process is generally undertaken to reduce their effect
on health, the environment or aesthetics.
Types of solid waste management:
• Landfill
• Incineration
• Recycling
16.
17. Energy Conservation
It refers to the efforts made to reduce energy
consumption.
Energy conservation is carried out by using the devices
that consume smaller amount of energy in order to
reduce the consumption of energy.
Reducing the use of electricity causes less fossil fuels
to be burned to provide that electricity.
18.
19. Goals of Green Technology
Sustainability
Creating products that can be fully reclaimed or re-
used.
Reducing waste and pollution by changing the
patterns of production and consumption.
Developing alternatives to technologies - whether its
fossil fuel or chemical intensive agriculture - that have
been demonstrated to damage health and the
environment.
Creating a center of economic activity around
technologies and products that benefit the
environment
22. “Earth provides enough to satisfy every man's
needs, but not every man's greed.”
― Mahatma Gandhi
“We're in a giant car heading towards a brick
wall and everyone is arguing over where they're
going to sit”
― David Suzuki
