1. Updates on Biochar Issues and Gasifier Stove Technology
Presentation to
Illinois Biochar Group
5 April 2013
Paul S. Anderson, PhD “Dr TLUD”
Chip Energy, Goodfield, IL

2. Two Themes Large TLUDs for making charcoal in Cambodia
Biochar research results of T. R. Preston and the LRRD, Colombia

3. Charcoal Production in Large TLUD Pyrolyzers in Cambodia
Fuel is coconut shells, that are crushed, and later loaded into large TLUD devices.

4. TLUD Pyrolyzers with 15 inch Inside Diameter for Fuel.
Large blower circulates the hot exhaust gases through a tunnel for drying the charcoal briquettes.

5. Removal of the Hot Charcoal

6. Extruding Briquettes, onto Drying Racks, and in a Charcoal Stove

7. Acknowledgement
The following Power Point Slides were prepared by T. R. Preston and delivered as part of his presentation to the Biochar Conference in Siem Reap, Cambodia, in March 2013.
Dr. Preston has given permission to re-show these slides.
His references are provided at the end.
Questions concerning this material should be directed to Dr. Preston.

8. Production and use of biochar in integrated farming systems
T R Preston
Finca Ecologica, AA48 Socorro, Colombia

9. The strategy to sequester carbon in the soil

10. The gasifier stove (Paul Olivier)

11. Biochar and biodigester effluent on growth of maize
Rodríguez et al 2009

12. Biochar and biodigester effluent on root growth of maize
Rodríguez et al 2009

13. Root development in the subsoil with and without biochar and effluent

14. Effect of biochar on soil pH

15. Control
Biochar
Charcoal

16. Biochar for Taro in Laos

17. Taro yield, 1st harvest 84 days

18. Taro 2nd harvest 112 days

19. Taro 3rd harvest 140 days

20. Predicted annual yield of Taro biomass with biochar

21. Sources of biochar on low pH soil (feralite) and high pH (sandy)

22. Sources of biochar on low pH soil (feralite) and high pH (sandy)

23. Biochar and nutritive value of green mustard
Chhay Ty et al 2013

24. Biochar and crude fiber in green mustard
Chhay Ty et al 2013

25. Growth of maize with biochar submerged in effluent

26. Biochar in animal feed

27. Methane in cattle fed cassava root and forage; effect of biochar and nitrate

28. Results in Kenya in re:char test plots

29. Thank you for your attention

30. References provided by T R Preston, from the first item in this listing. Chhay Ty, Vor Sina, Khieu Borin and Preston T R 2013 Effect of different levels of biochar on the yield and nutritive value of Celery cabbage (Brassica chinensis var), Chinese cabbage (Brassica pekinensis), Mustard green (Brassica juncea) and Water spinach (Ipomoea aquatica). Livestock Research for Rural Development. Volume 25, Article #008. Retrieved , from Boun Suy Tan 2010 Biochar Innovation from the UK Biochar Research Center. Husk B and Major Julie 2011 Biochar Commercial Agriculture Field Trial in Québec, Canada – Year Three: Effects of Biochar on Forage Plant Biomass Quantity, Quality and Milk Production. Huy Sokchea, Khieu Borin and Preston T R 2013 Effect of biochar from rice husks (combusted in a downdraft gasifier or a paddy rice dryer) on production of rice fertilized with biodigester effluent or urea; Livestock Research for Rural Development. Volume 25, Article #004. Retrieved , from (Continued on next slide)

31. Phalla and Preston 2005 Co-generation of energy and feed/food in integrated farming systems for socio-economic and environmental benefits. Pham Van Luu, Duong Nguyen Khang and Preston T R 2011 Effects of biochar from gasifier and effluent from biodigester for improving soil fertility and yield of green mustard Brassica juncea (L.). Workshop on Reducing Greenhouse Gas Emissions from Livestock and Soils (Editors: Reg Preston and Sisomphone Southavong). National Institute of Animal Science, Hanoi, November httm:// Rodrigues L, Salazar P and Preston T R Effect of biochar and biodigester effluent on growth of maize in acid soils. Livestock Research for Rural Development. Volume 21, Article# Southavong S, Preston T R and Man N V 2012 Effect of biochar and charcoal with staggered application of biodigester effluent on growth of water spinach (Ipomoea aquatica). Livestock Research for Rural Development. Volume 24, Article #39. Retrieved December 17, 2012, from