Hi Stephen, What in particular is costly in terms of increasing anion exchange? I'm wondering if there is anything we can do to alleviate it in terms of process itself, or if the cost is tied more to

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Hi Tom et al. I have been working with Claudia Kammann, companies and with A number of other Universities to increase anion exchange capacity of biochars. We and others have published a number of arti

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I just forwarded the original post. Essentially they are semi activating the char with certain chemicals to enhance phosphate adsorption. Tom

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Hi all, Some members of this group may be interested in a new blog post exploring production strategies that enhance certain characteristics of biochar for particular purposes on Agriculture Climate N

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I would expect that adding an alkaline biochar to an acidic - neutral soil could help phosphorus solubilization based on pH effects. Rick

#algae #biofilter #phosphorous

There are over 200 peer reviewed studies in the Science Direct database that speak directly to the pathways concerning P and biochar. Perhaps if the industry, and certain companies within the industry

#algae #biofilter #phosphorous

I also find it difficult to understand how a raw (un-modified) Biochar will do much at all for Phosphorus capture. Could you provide 3rd party data (with the lab certifications) for these claims and c

#algae #biofilter #phosphorous

Trevor: I am certain this project is not destined to fail. You need to remember Hugh's adage and published document that "all biochars are not created equal". Our biochar is being used in this project

#algae #biofilter #phosphorous

https://www.tapinto.net/towns/roxbury/sections/green/articles/fight-against-lake-hopatcong-algae-blooms-continues-with-biochar-bags I thought most biochars had a rather poor affinity to P unless modif

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List, cc Si and Tom Si Gau has just asked that I forward her earlier message today, which unfortunately got stopped for all but 4 of us - as she is not yet a biochar list member. Seven full papers. Sa

#nitrogen #pnw #phosphorous

Hi Ron: Thanks for spreading out the word about this dissertation work!! Hi Harry and others who are interested: Attached please find several biochar review and research papers by our team, feel free

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I wonder if there's a way to provide access to those interested on this discussion list rather than multiple requests from individuals? I for one am interested in reading the thesis (or individual pap

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List: cc Tom M, Si Gao (Thesis author), Tom Deluca (thesis advisor) Thanks to Tom Miles for finding this thesis - which I found well worth reading for those on this list interested in these sort of to

#nitrogen #pnw #phosphorous

Gao, Si, "INFLUENCE OF LOCALLY PRODUCED WOOD BIOCHAR ON SOIL NITROGEN AND PHOSPHORUS DYNAMICS IN THE NORTHWESTERN US" (2020). Graduate Student Theses, Dissertations, & Professional Papers. 11531. http

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Stephan, thanks! What I’ve seen is that the metals in biomass tend to get concentrated in the biochar fines during the pyrolysis process. Have you seen this effect? May suggest that fines are better f

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PS For increasing the rate of adsorption of rhizodeposits and aggregate formation size and zeta potential (the charge on the surface of the biochar) does matter. Aging nd/or Adding metals/minerals bef

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Limited work on best biochars for rhizodeposits but animal manure and straw seem to work best Some work on aggregates adn biochar. Google scholar will help. But here is some Incorporation of Biochar C

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Hi Stephen, Are there certain types of biochar that more-readily protect rhizodeposits and form aggregates? Pyrolysis vs gasification? Biomass type? Is there an analysis that can be done on the biocha

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Tom Our work shows how biochar can increase soil carbon and protect rhizodeposits. Essentially soil organic and mineral matter, root exudates and dead microbes are absorbed onto the outer and inner su

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Thomas, As you state, some portion of the biochar carbon perhaps up to 15% is still reactive. Chemical reactions are oxidative or reductive. Ozone is extremely oxidative. The oxygen in air also, not a

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