Sunday, February 15, 2015

Creating Renewables Micro-Utiliies

Justin Buck, Cambrian Innovation

Modular, turn-key waste water to energy systems using electrically active microbes.  The amount of energy in waste water is proportional to the BOD level. 

Uses exo-electrogenic organisms like geobacter and shewanella.  Geobacter is efficient and shewanella can operate in a wider variety of circumstances (a generalist).
They can build microbial fuel cells using waste water as a fuel.

Cambrian is looking at water treatment, electricity generation, and information from the flow through the system.

Ecovolt - world's first bioelectrically enhanced waste water treatment system, a biogas producer which can remove more BOD from water than traditional methods and produce more biogas.  Does not yet deal with heavy metals and pollutants like benzene.  A primary treatment system that removes soluble BOD, provides heat through hot water, biogas, and electricity.  Payback from less than a year to three years.  20,000 gallons per day per module.  Working on a WEPA - water energy power agreement.  The electricity comes from burning methane.

Scaling is the most difficult thing.

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