The Application of Microorganisms in Waste Remediation

Timberly Roane, University of Colorado at Denver

     The use of microorganisms in waste mitigation is an emerging
application for site bioremediation.  Our application of nonpathogenic,
naturally-remediating microorganisms in site clean-up includes the use of
fungi and bacteria in the degradation of organic compounds and the
detoxification of metals.  Our research focuses on the remediation of soils
and sediments impacted by industrial, agricultural and mining activities.
        Our goal is to develop and implement environmentally-friendly,
cost-effective in situ and reactor-based bioremediation technologies, and to
provide an alternative method for waste mitigation at sites where
traditional clean-up methods are limiting.


Biological System to reduce odor in anaerobic lagoons

Brad Walker, AgSkill

            Ag Algae is a biological system to reduce odors in anaerobic lagoons.  A single-celled green algae culture is used to produce oxygen in these system.  Treatment by aeration has proven to be an effective method of reducing lagoon odors by encouraging oxidative metabolism.  The mechanical aeration of lagoons has a high energy requirement.  In addition, aerators can be expensive and require maintenance.  By using photosynthetic oxygenation of Ag Algae, odor reduction is achieved without the high energy requirement.

            Ag Algae systems are currently employed at two swine lagoons at separate facilities located in Southeast Colorado.  AgSkill, Inc. is currently trying to market their system to Concentrated Animal Feeding Operations (CAFO) in Colorado and surrounding states.