fhaifodfhdoihfoaidfhi

1
Karst Carbon Sequestration
Reporter Xueli Chen, Zichen
Lee, Shing Chi Ian Wang
SHENZHEN MIDDLE SCHOOL
2
(No Transcript)
3
Solutions

• 1 Improving terminal efficiency
• 2 Improving supplier efficiency
• 3 Renewable energy
• 4 Alternative fuels
• 5 Agriculture(CH4 and N2O reduction project)
  
• 6 Industrial reduction process
• United Nations Framework Convention on Climate
  Change

7 CCS
4
3.Karst Carbon Sequestration
Carbon Capture and Sequestration(CCS)
technology attempting to prevent the release
of large quantities of CO2 into the atmosphere
from fossil fuel use in power generation and
other industries by capturing CO2, transporting
it and ultimately, pumping it into underground
geologic formations to securely store it away
from the atmosphere. Wikipedia
1.Ocean Sequestration
2.Plantation Sequestration
5
Why we choose this topic?
6
1.China is a big country with vast Karst
2.Nearly 15 of the land on Earth is covered by
Karst.
7
It has a simple principle

• What is it?
• And why do we call it Karst?
• Karst topography is a geological formation
• shaped by the dissolution of a layer or layers of
• soluble bedrock, usually carbonate rock such
• as limestone or dolomite.

8
Influencing factors
Landuse

• Climate
• Hydrogeology
• Geological Conditions

Vegetation
9

• For a long time, it was generally accepted
  that the geological carbon sink rate was very
  small, thus its effect was not considered
  seriously in the global carbon cycle study.

However, According to statistics, Karst carbon
sequestration could absorb over 600 million tons
of carbon dioxide per year which takes over 33
percent of the worlds carbon dioxide
10
Problems
11

• 1. The stability of carbonate rock

12
Estimation of carbon sink flux by karstification

• Lithology
  Specific corrodibility ()
• Dolomite 0.505
• Dolomitic limestone 0.833
• Impure dolomite 0.767
• Limestone 0.965

13
Limestone
Dolomite
14

• 2.Speed( carbon capacity)

Carbonic Anhydrase
Limestone 10times Dolomite 3times
Origin? expensive
15

• Thank you for your listening!
• Any question?