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From Food Waste to Fuel Cell 食物渣工程. ST. PAUL’S CO-EDUCATIONAL COLLEGE, HK 5A Choi Wai Tak 5A Lo Ho Wen 5A Pang Wai Ching Eunice 5B Li Lok Hin 5F Wong Tin Wan . Content. Background information Objective Significance Experiment: Preparation of ethanol (3 steps)

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from food waste to fuel cell

From Food Waste to Fuel Cell食物渣工程

ST. PAUL’S CO-EDUCATIONAL COLLEGE, HK

5A Choi WaiTak

5A Lo Ho Wen

5A Pang WaiChing Eunice

5B Li LokHin

5F Wong Tin Wan

content
Content
  • Background information
  • Objective
  • Significance
  • Experiment: Preparation of ethanol (3 steps)
  • Interpretation of results
  • Ethanol fuel cell + cyclic voltammetry
  • Benefits of using food waste
  • Limitations
slide3

1. Background information

Hong Kong has a high carbon emission per capita (5.5 metric tonnes)

slide4

1. Background information

landfills in Hong Kong will be depleted very soon

slide5

1. Background information

ok so… what should we do?

slide6

2. Objective

Make use of food waste to produce ethanol which powers fuel cells

Fuel cell

slide7

3. Significance

reduce carbon emission + save landfills!!

step 1 gathering food waste
Step 1: Gathering food waste

Considerations when selecting food waste samples:

  • Abundance
  • Availability
  • Ethical issue (why not corn?)

Bread crust

Tofu dregs

Coffee grounds

step 2 fermentation of food waste extract
Step 2:Fermentation of food waste extract

Anaerobic fermentation pathway

Add yeast

5 interpretation of results
5. Interpretation of results

A.) Comparing the amount of ethanol obtained from

different kinds of food waste

7 benefits of using food waste to obtain ethanol
7. Benefits of using food waste to obtain ethanol
  • Converting waste into useful materials
  • Alleviating the landfill problems in Hong Kong
  • Ethanol is a clean fuel
  • Avoid problems in current bioethanol generation methods
8 limitations
8. Limitations
  • Limited variety of food wastes
  • Scale of research
thank you
THANK YOU

Acknowledge to

  • St. Paul’s Co-Educational College
  • The University of Hong Kong