Contribution of the lignocellulosic fraction of two-phase olive-mill wastes to the degradation and humification of the organic matter during composting

Enhanced turnover of organic matter fractions by microbial stimulation during lignocellulosic waste composting

“…HC started to be degraded since the beginning of the process in both control and inoculated piles, although degradation was 28% higher in the inoculated piles at the end of composting. HC is the easiest to degrade lignocellulose fraction and it is usually decomposed to a higher extent in comparison to CEL and LIG (Serramiá et al, 2010) which were mainly degraded once the bio-oxidative phase had finished (Fig. 3b).…”

Mathematical modeling of olive mill waste composting process

“…Paredes et al (2002) in the co-composting process of olive mill wastes, modeled only the organic matter (OM) degradation using a first-order kinetics equation. This simplified modeling approach, including only OM change, has been used by many researchers in the composting process of olive mill wastes with different bulk agents Garcia-Gomez et al, 2003;Sánchez-Arias et al, 2008;Serramiá et al, 2010). To date, limited modeling studies (Vlyssides et al, 2009) have been conducted to describe the main physicochemical and biological mechanisms involved in the composting process of olive mill wastes.…”

Compost Prepared With Two Phase Olive Mill Waste "Alperujo" as Growing Media

“…Pile temperature represents a fast and simple parameter to monitor the evolution of the composting process, since this parameter is an indirect measuremt of the microbial activity responsible for the process. The composting mixture underwent the typical composting process for this type of wastes (Serramiá et al, 2010), characterized by long composting periods up to 30 weeks and maximum temperatures around 60-70ºC during the thermophilic phase (Fig. 1) decreasing to the 20-30º C at the end of the maturation process.…”