RT journal article
T1 Co-digestion of two-phase olive-mill waste and cattle manure: Influence of solids content on process performance
A1 Rubio, Jose Angel
A1 Fernández Güelfo, Luis Alberto
A1 Romero García, Luis Isidoro
A1 Wilkie, Ann C.
A1 García Morales, José Luis
A2 Tecnologías del Medio Ambiente
A2 Ingeniería Química y Tecnología de Alimentos
K1 Total solids content
K1 Co-digestion
K1 Two-phase olive-mill waste
K1 Cattle manure
K1 Methane production
AB The solids content is a key parameter in the development of anaerobic digestion as it can determine the properoperation and performance of the process. The influence of the total solids content on the mesophilic anaerobicco-digestion of two-phase olive-mill waste (2POMW) and cattle manure (CM) was investigated. Four differenttotal solids (TS) concentrations, in a 75:25 mixture of 2POMW:CM, were studied in batch reactors of 2 L capacity:10%TS (R10), 15%TS (R15), 20%TS (R20) and 28.6%TS (Reactor non-diluted). The methane yields and theorganic matter removal efficiency for the reactor with 10 and 15% TS were significantly higher than in thereactors with a higher solids content (R20 and Rnd). The hydrolytic and acidogenic phases were not adverselyaffected by the total solid content since the concentration of volatile fatty acids (VFAs) increased as TS per-centage increased. However, a clear effect on the methanogenic phase was observed, which led to the accu-mulation of VFAs in the reactors R15, R20 and Rnd. Experimental results have shown that the best conditionscorrespond to the reactor containing 10% TS. The volatile solids and VFA removal in reactor R10 were 57.5%and 93.7% respectively. Moreover, the methane yield and the specific methane production were 35.80 LCH4/kgVSadded and 82.51 LCH4/kgVSremoved respectively
PB ELSEVIER
SN 0016-2361
YR 2022
FD 2022-08
LK http://hdl.handle.net/10498/26582
UL http://hdl.handle.net/10498/26582
LA eng
NO This research has been co-financed by the 2014-2020 ERDF OperationalProgramme and by the Department of Economic Transformation,Industry, Knowledge and University of the Regional Government ofAndalusia. Project reference: FEDER-UCA18-107460.
DS Repositorio Institucional de la Universidad de Cádiz
RD 12-nov-2026