Is physicochemical evaluation enough to characterize olive mill waste compost as soil amendment? The case of genotoxicity and cytotoxicity evaluation

Mathematical modeling of olive mill waste composting process

“…The factor F inh was introduced in the bacterial growth kinetics in order to describe the inhibition effect of the phenolic fraction of particulate waste (Muktadirul Bari Chowdhury et al, 2015):…”

“…Mixtures C1 to C6 were composted for 102 days with regular mechanical turning to achieve aeration, under identical operational conditions. More information about the experimental procedure and sample analysis is given in our previous work (Muktadirul Bari Chowdhury et al, 2015). Finally, it should be noted that based on experimental results obtained from physicochemical quality and phytotoxicity tests (Muktadirul Bari Chowdhury et al, 2015), all composting mixtures of olive mill waste were characterized as high quality compost that can be used as soil fertilizer.…”

“…The value of phenolic content (Ph) that was used in the inhibition function was in the range 0.27-0.34% according to experimental data for each mixture (Muktadirul Bari Chowdhury et al, 2015). The Y S L =X value of 0.53 (kgS L /kgX) was , suggesting that about 50% of the dead biomass returned to the compartment of soluble organic matter.…”

“…Heterogenic processes have also in the past modeled for various water and wastewater treatment systems, while providing a good understanding of pollutant removal kinetics Vasiliadou et al, 2008;Tekerlekopoulou et al, 2013). The experimental data used to calibrate and validate the model were obtained from our previous study (Muktadirul Bari Chowdhury et al, 2015). The composting material was olive pomace from a three-phase olive mill containing olive leaves, rice husk, wood shaves, sawdust and chromium treated reed plants as bulking agents in different initial ratios.…”

Comparison of solid biofuels produced from olive pomace with two different conversion methods: torrefaction and hydrothermal carbonization

“…It is estimated that the world-wide production of olive oil was about 3 million tons for the harvest period of 2013-2014 [10]. The rapid increase in the amount of wastes generated in this process has caused serious environmental issues due to wastes' high organic matter content and its phytotoxicity [11].…”