A VFA-based controller for anaerobic digestion of industrial winery wastewater
A variable-gain controller for anaerobic digestion of industrial winery wastewater is presented.A control law using both volatile fatty acids (VFA) and methane production rate as controlled variables and organic loading rate (OLR) as manipulated variable is defined.Process state is quantitatively estimated by an empirical function comparing VFA measurements against a setpoint value;then,amended with a second empirical function comparing methane flowrate against a reference value of maximum capacity,and finally adjusted with a third factor considering the actual hydraulic retention time.The variable-gain function determines the extent of OLR change applied to the system.The controller was successfully validated in a 95 L Upflow Anaerobic Sludge Blanket (UASB) reactor,treating industrial wine wastewater at OLR between 2.0 and 39.2 gCOD/L d over 120 days at mesophilic conditions.Higher performance was achieved contrasted with a conventional operation strategy carried out in a parallel UASB unit.
Anaerobic Digestion Control VFA Wine wastewater
Gustavo Vargas-Morales Rolando Chamy Santiago García-Gen
Escuela de Ingeniería Bioquímica.Pontificia Universidad Católica de Valparaíso.Avenida Brasil 2085, Valparaíso, Chile
国际会议
The 15th IWA World Conference on Anaerobic Digestion( 第15届IWA世界厌氧大会)
北京
英文
381-384
2017-10-17（万方平台首次上网日期，不代表论文的发表时间）