versión On-line ISSN 0718-0764
VARNERO, María T; GALLEGUILLOS, Karina y ROJAS, Ronald. Composting Systems for Olive Residues Treatment. Inf. tecnol. [online]. 2011, vol.22, n.5, pp. 49-56. ISSN 0718-0764. http://dx.doi.org/10.4067/S0718-07642011000500007.
Four composting systems for aerobic treatment of olive residues were evaluated during 140 days: T1 with windrows 100% olive residues and manual turning , T2 with windrows 100% olive residues and forced aeration , T3 with windrows 75% olive residues and 25% chips pruning and manual turning, and T4 with windrows 75% olive residues and 25% pruning chips with forced aeration combined with manual turning. Treatments with bulking agent (T3 and T4) reached thermophilic phase at the seventh day, whereas T1 and T2 at the twenty-first day of composting. Thermophilic phase lasted approximately 130 days in T1, T3 and T4, while in T2 lasted 30 days. A subsequent drop in the temperature of compost windrows was observed. Noticeable differences among treatments were found demonstrating that olive residues can not be treated exclusively with forced aeration since this system facilitates the compaction of the wastes.
Palabras clave : olive residues composting; compost quality; forced aeration; manual turning; bulking agent.