Dear Gasification Listserv and Biochar Listserv,
The excellent comment by James Joyce (below) did not reach the
Gasification readers. It only went to the Biochar readers. Interesting
for two reasons (overly simplified, but to make a point):
1. Gasification for power (engines) is what causes the problem of
contaminated waste water, but those readers did not see the "solution
offered". THEY are the people who could test and evaluate the solution.
2. Biochar production (for agriculture and carbon sequestration) has
been proposed to make a filter-char that is to be burned, which is what
biochar production is trying not to do. That is, char as filter for
wastes made by trying to burn all of the biomass to ash.
Those of us who are subscribed to both lists will see the full
discussion. Let's hope that this is a functional solution.
(Of course it is better if the nasty contents in the waste water were
not created in the process of making the electro-mechanical power.)
To James Joyce, I say "Thanks."
Paul Anderson
James Joyce wrote:
Seems to me that the smallest foot print treatment would be to filter
the water through char, gravity dewater and then dry the char to less
than 30% moisture, then combust it at over 1000 deg C in a chamber
that maintains a 2 second residence time for the gases released from
the combustion. That will yield useful heat while destroying the
recalcitrant hydrocarbons. In locations with weather that does not
make solar or even bed drying viable, the process will generate more
than enough heat to run a heated air drier.
After the past mess if dealt with, such a process would probably only
need to be run for a day a week to treat scrubber water from storage
tanks (i.e. never put out to lagoons or open storage where it is of
great risk to the environment).
The equipment required to do that is far less complicated than the
gasifiers themselves.
Regards,
James Posted by: James Joyce
<[email protected]>
Doc / Dr TLUD / Prof. Paul S. Anderson, PhD
Email: [email protected]
Skype: paultlud Phone: +1-309-452-7072
Website: www.drtlud.com
On 1/7/2016 10:45 AM, [email protected] wrote:
Tom,
Thanks for the compliment and appreciation. There were hundreds of
"pot" trials using a wide variety of treatments, extractions, etc.
before the key process was accidentally stumbled on. Other processes
have evolved and include the ability to take sea-water to potable with
a fraction of the cost of distillation or RO.
Assumptions about the tar properties including specific gravity can be
quite misleading.
One aspect of how to deal with the produced water from a gasifier is
to give it the right type of compound definition and once that is
reached, it makes it much easier to treat it.
Sincerely,
Leland T. "Tom" Taylor
Thermogenics Inc.
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