Feasibility of methanogenic digestion applied to a low pH acetic acid solution.
This paper discusses the methanogenic digestion of a synthetic acetic acid wastewater inoculated using a mixed culture obtained from an anaerobic digester at a municipal wastewater treatment facility. Experiments were conducted in 500mL batch reactors containing an unbuffered acetic acid solution. Test conditions compared methane production and acetic acid degradation at both acidic (pH 4.5) and neutral (pH 7.0) initial system conditions. Results showed that methane production increased by 30% when the initial pH was decreased from 7.0 to 4.5.
Taconi
Katherine A
KA
Department of Chemical and Materials Engineering, University of Alabama in Huntsville, 130 Engineering Building, Huntsville, AL 35899, United States. taconik@email.uah.edu
Zappi
Mark E
ME
Todd French
W
W
Brown
Lewis R
LR
D019342:Acetic Acid / Q000378:metabolism*; D000693:Anaerobiosis; D019149:Bioreactors; D019605:Euryarchaeota / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D008697:Methane / Q000096:biosynthesis*; D014865:Waste Disposal, Fluid / Q000379:methods*; D018508:Water Purification / Q000379:methods*
D008697:Methane; D019342:Acetic Acid