1. Clean Technology
(PB382)
Click to edit Master title style Numfon Eaktasang, Ph.D.

2. Contents Introduction to clean technology
Clean technology and Clean-up technology
Sustainability
Natural capital
Ecological footprint
Principle of clean technology

3. Clean Technology
Clean technology is any product or service that improves operational performance, productivity, or efficiency while reducing costs, inputs, energy consumption, waste or environmental pollution.

4. Clean Technology Includes recycling, renewable energy
Wind power, solar power, biomass, hydropower, biofuels, etc.
Information technology, green transportation, electric motors, green chemistry, lighting, and many other appliances that are now more energy efficient. 
To generate with a smaller environmental footprint and minimize pollution.

5. Clean Technology
Clean technology project can obtain financing through the generation of carbon credits.
A project that is developed with concern for climate change mitigation.
Such as a Kyoto Clean Development mechanism project is also known as a carbon project

6. Mass Balance Process Input Output Air pollution Wastewater 100% 10%
70%
Solid waste

7. Pollution
“Any additional to air, water, soil, or food that threatens the health, survival, or activities of humans or other living organisms.”
Point sources
pollutants from single identifiable sources
Nonpoint sources
pollutants from dispersed (difficult to identify) sources

8. Causes of Environmental Problems
Exponential population growth
High consume of environmental resources
Human activity produce a lot of pollutions
100,000 synthetic chemicals in commercial use
1000 new compounds being introduced every year
Contaminated into the environment: accidental leakage during manufacture, transport or usage
Pesticide, toxic compounds, heavy metal, etc.

9. Environmental Impacts from Human Activity
Process
Impact
Industrial and urban development
Elimination of natural and semi-natural habitats
Energy production
Particulate material
Oxides of sulphur
Oxide of nitrogen
Carbon gases
Partially combusted hydrocarbons
Heavy metals
Farming
Soil erosion
Eutrophication (nitrates, phosphate)
Pesticide pollution biomagnification (e.g. persistent compounds)
Industrial production
Organic and inorganic effluents (e.g. PCBs, sulphites and sulphates, heavy metals)

10. Atmospheric Pollution

11. Source of Air Pollutants
Natural Sources
Man-Made Sources
- Mobile sources : car (exhaust)
- Stationary sources: Industry (stack), fugitive emission

12. Atmospheric Transformation

13. Air Pollution Effects
Health effect: Carboxyhemoglobin (COHb)

14. Air Pollution Effects
Photochemical Smog (NO2)

15. Air Pollution Effects
Acid Rain (SO2)
2SO2 + O2 2SO3
SO3 + H2O H2SO4

16. Air Pollution Effects

17. Air Pollution Effects
Particulate Matter (PM)

18. Air Pollution Effects

19. Air Pollution Effects
Global Warming

20. Air Pollution Effects Rising sea levels Ice melting Drought Flooding
Climate Change
Rising sea levels
Ice melting
Drought
Flooding

21. Water Pollution

22. Water Pollution
Eutrophication

23. Water Pollution

24. Land Pollution
Soil Contamination
Contamination plume

25. Solutions to Pollution
Pollution Prevention
prevent pollutants from entering the environment
(Front-of-Pipe)
Pollution Cleanup
after pollutants released into environment
(End-of-Pipe)

26. Solutions to Pollution

27. Sustainability
“The ability of the earth’s various natural systems and human cultural systems and economies to survive and adapt to changing environmental conditions indefinitely.“
Living sustainably means living off earth’s natural income without depleting or degrading the natural capital that supplies it.

28. Principle Key of Sustainability
Solar Energy
Chemical Cycling
Biodiversity

29. Solar Energy Warms earth
Provides energy for plants to make food for other organisms
Powers winds
Powers the hydrologic cycle – which includes flowing water
Provides energy: wind and moving water can be turned into electricity

30. Biodiversity Large variety of species Many ecosystems Deserts Forests
Oceans
Grasslands

31. Chemical Cycling Natural processes recycle nutrients
Recycling is necessary because there is a fixed supply of these nutrients on earth
Nutrients cycle from living organisms to the nonliving environment and back
Chemical cycles are necessary to sustain life

32. Natural Capital
Natural resources
Natural services

33. Natural Resources Renewable Air, water, soil, plants Nonrenewable
Minerals, oil, coal

34. Natural Services Functions of nature Purification of air, water
Nutrient cycling
From the environment to organisms and back to the environment

36. Ecological Footprint
The amount of biologically productive land and water needed to indefinitely supply the people in a given area with renewable resources
Also includes the land and water necessary to absorb and recycle wastes and pollution

38. What is Your Footprint? www.carbonmarket.tgo.or.th
Web-base Thai Carbon Footprint Calculator

39. What is Your Footprint?

40. What is Your Footprint?

41. Principle of Clean Technology
Source Reduction : Reduce
Reuse and Recycle

42. Principle of Clean Technology
Cleaner Technology
Reuse/Recycle
Source Reduction
Process Change
Product Change
Reuse
Recycle
Raw Material Change
Technology Improvement
Operational Management
Before
After

43. Clean Technology Application
Before CT Application
Raw material
Energy
Water
Process
Product
Energy Loss
Emission
Solid Waste
Disposal
Wastewater
Wastewater treatment
Water
Energy

44. Clean Technology Application
After CT Application
Raw material
Energy
Water
Process
Emission
Solid waste
Recycling/Disposal
Wastewater
Product
By-product
Water
Energy

45. Thank You !