A study on olive oil mill wastewater management in Turkey: A questionnaire and experimental approach

► We aimed to provide a viable solution for the olive oil mill wastewater (OOMW) owners. ► We examine the current OOMW management practices in Turkey. ► We investigate the applicability of slow rate land treatment process for disposal. ► Producers in Turkey generally use three-phase centrifugation generating high amount of wastewater and use evaporation ponds for the disposal. ► Pollutant removal rates by the land treatment process were initially high but, the rates decreased in time due to the inhibition.