Monitoring the role of aceticlasts in anaerobic digestion: Activity and capacity

摘要: Aceticlastic methanogens are seen as a key to digester capacity and stability. This paper develops applies an assay measure stability by measuring the maximum aceticlastic methane production rate (Vmax,ac). The Vmax,ac in combination with acetate concentrations was found be effective digestion monitoring tool indicate process upsets. At steady state, thermophilic, first stage short SRT digesters generally had greater than mesophilic, second or long digesters. ratio of plant rate, termed Acetate Capacity Number (ACN), is excess digester. Either ACN can used estimate capability handle higher organic loading rates. Monod modeling predict Vmax,ac, VS rates for mesophilic thermophilic staged better understand expected