Kelpie Wilson from www.wilsonbiochar.com has led this initiative…
“A quick summary of results of experiments in open burn techniques to minimize smoke and maximize charcoal production. Experiments were conducted by volunteers over a 3 day period, November 15-17, 2013, outside of Grants Pass, Oregon.”
I’ve been a little slow in finding the output from this conference… I’m sure the most comprehensive biochar event to date.
This link leads to all the conference content including video coverage.
An opportunity here for to get biochar understanding into an expert panel. This Waikato river quality program should be well funded and should include support for biochar nutrient management research. My June posts are probably connected with this new initiative… http://soilcarbon.org.nz/?s=waikato+river&x=11&y=3
Do let me know if you want a copy of the documents.
The following presentation was given by Sam Gregory at the 2013 WasteMINZ conference on 23 October 2013:
“Application of biochar to a soil contaminated with organochlorines and arsenic (As) from a past agricultural practice known as sheep dipping was analysed to investigate its effects on contaminant mobility and plant growth characteristics during a 180d glasshouse and field trial study. Soil from a known dip site was removed and treated with biochar made from a willow (Salix sp.) feedstock (pyrolysed at 350°C and 550°C) added at 20 t ha-1 and 40 t ha-1 to gauge the appropriate treatments to be used in a later field trial. Soil microbial activity as analysed using the dehydrogenase activity assay (DHA) was significantly increased (P<0.01) under all biochar amendments. After 60 d of amendment, biochar containing soils underwent > 100% increase in DHA resulting in significant decreases in alpha-HCH (10-fold) and gamma-HCH (3-fold) concentrations in soil. Significant reductions in DDT with biochar amendment were also noticed after 180 d of treatment compared to unamended soils. Biochar did not increase water-extractable arsenic concentrations but significantly (P<0.05) increased phytoextraction into both a arsenic hyperaccumulator fern (Pteris cretica) and ryegrass (Lolium perenne). Ryegrass growth was signifcantly increased (P<0.01) under biochar amendment with 2-fold increase in shoot dry weight and 3-fold increase in root dry weight after 180 d. These results have the potential to reduce the remediation time of contaminated soil and decrease the environmental risk to nearby ecosystems.”
Author: Samuel Gregory, Dr Chris Anderson, Assoc. Prof. Marta Camps-Arbestain, Prof. Michael McManus, Massey University
Attachments: WasteMINZ 2013 Use of biochar for the sustainable remediation of sheep dip sites
David Yarrow has put out this for comment…
If some of this is still too much for your rusty organic chemistry, I recommend checking out this…
This biochar workshop delves deep into the many aspects of biochar production and application. Part 1 focuses on practical production techniques using ‘drum within drum’ retort. There may be some advantages for this over the TLUD system (ie, reduced supervision).
Part 2 and 3 are classroom based with Q&A. Bob Wells (New England Biochar) describes his 4-part philosophy for biochar production: 1 – make the best possible biochar; 2 – use the residual energy efficiently; 3 – eliminate emissions; 4 – make the project profitable. John Nilsson (soil scientist) talks about history of biochar and its applications.
Part 4 takes a look at the triple Adam Retort system, installed by New England Biochar, that is the center piece for the site where the workshop is conducted.
This should prove to be a valuable contribution to the accumulated knowledge on the benefits of combining biochar and compost (and incorporating references to our very own Clough et al on biochar and soil N dynamics) …
———- Forwarded message ———-
From: Kelpie Wilson <firstname.lastname@example.org>
Date: 13 November 2013 05:24
Subject: [biochar] New publication with sections on biochar and compost
To: “email@example.com” <firstname.lastname@example.org>
A report that I worked on for the Washington Department of Ecology has now been published. Many thanks to Mark Fuchs at WDE for initiating this report on compost odor control, and for asking me to contribute a literature review of biochar use in compost and an appendix on the global history of biochar.
Here is a link to the study and the table of contents for the biochar sections. I hope this will be useful information for biochar producers and users.
Ma, J., Wilson, K., Zhao, Q., Yorgey, G., & Frear, C. (November, 2013). Odor in Commercial Scale Compost: Literature Review and Critical Analysis. Washington State Department of Resources. Retrieved October 29, 2013, from https://fortress.wa.gov/ecy/publications/publications/1307066.pdf
TABLE OF CONTENTS – SECTIONS COVERING BIOCHAR AND BIOCHAR HISTORY:
Use of Amendment Approaches to Pile Chemistry and Biology -26
Volatile fatty acids -27
Ammonia and nitrogen-based odors -28
Hydrogen sulfide and sulfur-based odors -29
Aeration and moisture -30
Nitrous oxide -31
Carbon dioxide -31
Biochar and compost quality -32
Compost nitrogen content -33
Compost maturity and humic content-34
Biochar property alteration through composting -34
Plant growth response to biochar compost -34
Appendix A. Historical and Traditional Uses of Biochar Related to Odor Control -39
Ancient and traditional biochar -39
19th century agricultural charcoal -41
The sewer debates -43
Profiles of current initiatives for using biochar in compost -48
Japanese composting with biochar -48
Integrated solutions in Vietnam -49
Waste utilization in rural India -49
The Delinat Institute, Switzerland -49
Sonnenerde Company, Germany -50
Terra Preta Sanitation Initiative -50
European Biochar Research Network -50
International conference on biochars, composts, and digestates -51
This recent TED-talk by Rob Lerner has been receiving accolades from the biochar community…
“Researchers report that wood-biochar supercapacitors can produce as much power as today’s activated-carbon supercapacitors at a fraction of the cost.”
Don Graves’ second article on biochar has just been published in the Nelson Mail…
This report was pushed to me via the google search engine so I guess that’s good news for biochar profiling in NZ.
Here’s a link to the 1st article… http://soilcarbon.org.nz/coal-solution-a-burning-issue/
Don can be contacted via ABE.