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Phytoremediation – Humate with Ultrasonic Catalysts for Toxic Waste
Remediation
© Bear Creek Development Company, Inc.
HUMATES
Bear Creek is fortunate to have access to Dr. Boris Levinsky as consultant
and Dr. Robert Faust as senior advisor on humate and microbiological remediation
projects. Dr. Levinsky is director of Gumate Ltd., previous Chair of Department
of Physical and Colloid Chemistry of Irkutsk State Medical Institute.
Dr. Faust holds 15 years experience as a knowledgeable agronomist –
ecoagroligist in diverse areas such as Idaho, New Mexico,California and
Hawaii.
The world's foremost authority on humates, Dr. Boris V. Levinsky, of
the former U.S.S.R. has determined not only food producing value of the
Humates, but that Humates are effective for remediation of radioactive
soils.
“Radioactive materials can be affected by the ion exchange potential,
tautermeric ability and oxidizing-reduction characteristics of Humic Acid.”
PHYTOREMEDIATION
The Institute of Cell Biology and Genetic Engineering in Kiev (Ukraine) evaluated the use of plants to treat water contaminated with Cs and Sr in the Ukraine. A natural pond with a surface area of about 75m, 1km west of the Chernobyl Nuclear plant was selected as a site for a rhizofiltration field trial. Radionuclide concentrations in this water body were close to 80 for Cs Bq 1-1 and 1200 Bq 1-1 for Sr. A 600 liter sample of pond water was collected and transported to the Institute in Kiev for greenhouse studies. Sunflower plants grown hydroponically following the methods developed in the Ashtabula Field (Ohio – USA) trial were used in batch experiments with the pond water. Roots of four plants (eight weeks old) were submerged in containers filled with 50 L of water for 48 hours. Every two days the plants were replaced and the water analyzed for Cs and Sr. This batch protocol was repeated for a total of 12 days and resulted in the removal of 90% of Cs and 80% of Sr in the pond water.
Additional radio nuclide uptake studies were carried out directly in the contaminated pond. Plants were transplanted or grown on 1 X 1 rafts constructed with Styrofoam. Plant nutrients were supplied as Hydrosol™ solution applied to a layer of Perlite on the surface of the raft. A 0.5m2 cavity in the center of the raft permitted plant roots to grow in the pond. After 4-8 weeks of hydroponic growth in the pond, the plants were harvested, dried and the concentration of Cs and Sr in the shoots and roots measured. The highest bioaccumulation coefficient calculated as a ratio of radio nuclide content in plant tissue to concentration in water Cs and Sr was measured in sunflower roots, accumulating up to eight times more Cs than the roots of Timothy (Phleum pratense L.) or that of Foxtail (Alopercurus pratensis L.). In addition sunflower shoots accumulate large amount of Strontium (Sr). Sunflower shoots contained 2.5X 10^6Bq of Sr per kilogram dry weight – a quantity of radioactivity sufficient for this material to be held in quarantine in the Chernobyl exclusion zone! Combining high biomass production and intense radionucleides accumulation, sunflower is an excellent species for rhizofiltration technology.
While insufficient biomas was used in this trial to completely clean the pond of radioactivity, the bioaccumulation coefficients measured for Sunflower plants, show that all of the radioactivity in this pond, estimated at 9.2 x 10^6 Bq of Cs and 1.4 x 10^8 of Sr, could be concentrated into 55 kg of dry weight of sunflower plants. The plants could then be stabilized, ashed, or vitrified and the resulting radioactive stored in a disposal facility.
Sent toGDR by:
donnie hall @ drhall@iglou.com
E Mail drhall@iglou.com,DrGeedari@gdr.org
Authors note,
we may soon do an ipo on the web with witt, the same who took micro
brewery and
real goods to the public. With that, many investors would push to see
the technology put in the state and federal system.
thanks,
donnie hall
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