#16: ASMR 2018 Presentation: MnOx Production and Harvesting
After a quiet and productive holiday season we are pleased to announce our next up coming presentation…
“Manganese Oxide Production and Harvesting Using Metal Removal Units”
Im really looking forward to visiting St Louis and climbing the arch. Here is the abstract! Cheers, and hope to see you there! Colin
Manganese Oxide Production and Harvesting Using Metal Removal Units
Abstract: Metal Reclamations Units (MRUs) are gravity driven, modular, scalable, rapidly
deployed wetland bioreactors. The biofilm which grows upon the organic supporting matrix in
the MRUs is self-selecting and determined by the introduced pollutant loads and how they are
naturally attenuated. MRUs remove Mn at pH <7 when total Fe is removed to <0.35 mg/L,
organic carbon is available, and 4-6 weeks is allowed for biomass accrual in mild to warm
Weather. It is hypothesized that organic carbon from upstream wetlands are a food source driving
fungal oxidation of Mn2+ to MnOx (Birnessite). When the noted conditions are
achieved/surpassed, Mn2+ is removed at rates up to 370 grams/m3/day at 225+ Lpm. Data
suggests that organic carbon and organic structural matrix additives which consider
complimenting/conjoined biofilm metabolic pathways increase biological remediation of metals. Further,
this method of biological manganese oxide production provides useful byproducts for further
water treatment, the battery industry, and agriculture.
Additional Keywords: biofilm, natural attenuation, fungal manganese oxidation
- Oral paper presented at the 2018 National Meeting of the American Society of Mining and
Reclamation, St. Louis, MO: The Gateway to Land Reclamation, June 3 – 7, 2018. Published
by ASMR; 1305 Weathervane Dr., Champaign, IL 61821.
- Colin A. Lennox, CEO BioMining Products and MRU Inventor, Altoona, PA 16601
- Work reported here was conducted near 400 42’ 54.26” N; 780 25’21.01” W.