Barrons AP Environmental Science

(Marvins-Underground-K-12) #1

  1. (B) The bacteria that normally work to decompose livestock wastes are
    anaerobic, operate only in environments with little or no oxygen, and
    produce nitrous oxide (N 2 O). Digesters can be constructed to reduce
    livestock wastes to methane gas (CH 4 ), which can then be burned as a fuel.

Free download pdf