Mar 1, 2008 · The co-composting of olive oil processing solid waste with poultry manure was first investigated by Vlyssides et al., 1996, Georgakakis and Krintas, 2000, Hachicha et al., 2003, Baeta-Hall et al., 2005, and later by Hachicha et al. (2006); and additionally the biotoxicity during composting process of poultry manure and olive oil