[Digestion] Nitrogen Emissions from Biogas

[Ian]

On 9/03/2007, at 11:44 AM, Paul Harris wrote:

> If biogas is 60% methane and about 40% CO2, with traces of water,
> ammonia, H2S etc there will not be much N20. I understand (from my
> simple engineering knowledge, which does not really extend to
> combustion!) that NOX (N2O?) emissions are a result of combustion

Nitrous oxide is emitted by cow manure on pasture.
We are undertaking trials to determine the N20 from raw dairy  
effluent as compared to diary effluent digestate after AD.

_________________
Ian Bywater
Director, Natural Systems Limited
PO Box 1551
Christchurch 8140
New Zealand