Long-Term Effects on Soil of the Disposal of Olive Mill Waste Waters (OMW)

Kavvadias, Victor; Doula, M.; Theocharopoulos, Sideris

doi:10.1080/15275922.2013.872713

Cited by 29 publications

(18 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…countries [7]. Therefore, the untreated residue presents one of the most important environmental problems in that geographic area, especially in the aquatic environment.…”

Section: Introductionmentioning

confidence: 99%

GC-MS, FTIR and 1H ,13C NMR Structural Analysis and Identification of Phenolic Compounds in Olive Mill Wastewater Extracted from Oued Oussefrou Effluent (Beni Mellal-Morocco)

Zghari¹,

Doumenq²,

Romane³

et al. 2017

JMES

View full text Add to dashboard Cite

“…countries [7]. Therefore, the untreated residue presents one of the most important environmental problems in that geographic area, especially in the aquatic environment.…”

Section: Introductionmentioning

confidence: 99%

GC-MS, FTIR and 1H ,13C NMR Structural Analysis and Identification of Phenolic Compounds in Olive Mill Wastewater Extracted from Oued Oussefrou Effluent (Beni Mellal-Morocco)

Zghari¹,

Doumenq²,

Romane³

et al. 2017

JMES

View full text Add to dashboard Cite

“…OMW is a primary waste product of olive oil processing. In several countries where olive oil production is very intensive, OMW is often recycled as a low-cost fertilizer, since OMW is naturally rich in mineral elements (Kavvadias et al 2014;Mohawesh et al 2014;Chatzistathis and Koutsos, 2017;Mekki et al, 2018;Chehab et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Impact of olive mill wastewater (OMW) on the soil hydraulic and solute transport properties

Comegna

Dragonetti

Kodešová

et al. 2021

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

The Mediterranean area concentrates the world’s largest production area of olive oil. The olive oil industry represents, in this basin, one of the leading sectors of the agri-food economy. Olive mill water (OMW) is the principal waste effluent produced by the olive oil industry. Due to its high pollution load, this aqueous by-product cannot be directly disposed of in domestic wastewater treatment plants (especially those with a biological treatment unit). Untreated OMW is currently used for agronomic purposes in several countries, mainly because it is rich in valuable plant nutrients. However, OMW is characterized by toxic phenols, high organic matter, high salinity, suspended solids and several other components that may have possible negative effects on chemical and physical soil properties, as well as soil biological activities. In the present research, we focused on the effects of OMW application on transport and hydraulic soil properties. Three distinct soils from a pedological point of view were selected and a series of laboratory steady-state miscible flow tests were conducted under saturated conditions, on both OMW-treated and -untreated soil columns. Tests were conducted on disturbed and undisturbed soil columns. The approach proposed by Kachanoski, based on soil impedance (Z) measurements via the time domain reflectometry (TDR) technique, was used to monitor the leaching experiments. The breakthrough curves (BTCs) exhibited different shapes that allowed the repercussions of OMW applications on soil transport behaviour to be distinguished. Several additional tests conducted on OMW-treated and -untreated soil cores to determine water retention curves (SWRCs) and saturated hydraulic conductivity Ks allowed us to infer the probable mechanisms involved in soil hydrological behaviour changes under OMW treatments. The results show that when OMW leaches into the soil immediately after its disposal there is little effect on the evaluated hydraulic and hydrodispersive properties. By contrast, we demonstrated that a short incubation period (i.e. a short contact time between OMW and soil) of 10 days is enough to exert a great influence on all the values determined (e.g. soil pore velocity v and Ks reduced by up to one order of magnitude). These effects were especially evident in undisturbed soil samples. Graphic Abstract

show abstract

“…The volumes of OMW produced depend on the extraction method (i.e. traditional pressing, or two-phase/threephase centrifugation systems) and may vary between 40 and 100 liters per 100 kg of processed olives (Kavvadias et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…Due to its complex composition, OMW cannot be directly added to domestic wastewater treatment plants (Caputo et al, 2013), and there is a lack of practical and sustainable alternative solutions to OMW disposal. This aspect represents a potential environmental problem for olive oil-producing countries (Kavvadias et al, 2014). One solution adopted for OMW discharge which has been legally regulated in several countries (e.g.…”

Section: Introductionmentioning

confidence: 99%

Time domain reflectometry (TDR) for dielectric characterization of olive mill wastewater (OMW) contaminated soils

Comegna

Coppola

Dragonetti

2020

Preprint

View full text Add to dashboard Cite

Abstract. Olive mill wastewater (OMW) is a compound originating from oil mills during oil extraction processes. In the Mediterranean area, more than 30 million m3 of OMW are produced each year, which represents 95–97 % of world production. Such volumes of untreated OMW are usually directly disposed of into drainage systems, water bodies (such as streams, lagoons and ponds), or else are sprinkled on soils, causing potentially severe environmental problems to soils and groundwater. There is thus a serious waste management problem related to the olive oil industry, such practices no longer being acceptable. In the case of on-land OMW disposal, characterization and identification of this contaminant in soils is a fundamental task especially with a view to maintaining the integrity and quality of agroecosystems. In recent years, soils have been extensively studied to detect contaminants by using various geophysical methods. Among such techniques, time domain reflectometry (TDR) has shown, in different contexts, evident sensitivity and resolution capability for characterizing contaminated soil sites. In order to further exploit the potential of the TDR technique, in the present study we conducted a series of laboratory-controlled tests to explore how OMW influences the dielectric response of contaminated soils. The research led to the development of an empirical dielectric model to estimate the presence of OMW in variably saturated-contaminated soils with different textures and pedological features.

show abstract

Long-Term Effects on Soil of the Disposal of Olive Mill Waste Waters (OMW)

Cited by 29 publications

References 54 publications

GC-MS, FTIR and 1H ,13C NMR Structural Analysis and Identification of Phenolic Compounds in Olive Mill Wastewater Extracted from Oued Oussefrou Effluent (Beni Mellal-Morocco)

GC-MS, FTIR and 1H ,13C NMR Structural Analysis and Identification of Phenolic Compounds in Olive Mill Wastewater Extracted from Oued Oussefrou Effluent (Beni Mellal-Morocco)

Impact of olive mill wastewater (OMW) on the soil hydraulic and solute transport properties

Time domain reflectometry (TDR) for dielectric characterization of olive mill wastewater (OMW) contaminated soils

Contact Info

Product

Resources

About