The Environmental Problem of Olive Mill Waste Water in Morocco: Data Analysis and Characterization

Benaddi, Rabia

doi:10.47191/ijcsrr/v5-i5-51

Cited by 5 publications

(3 citation statements)

References 8 publications

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“…It is worth noting that this parameter alone may not provide an immediate indication of the mineral content (Paredes et al, 2005). The obtained results align with findings in the literature(Gueboudji et al, 2021;Benaddi et al, 2022). Specifically, a value of 23.07 mS/cm was measured, denoting a substantial salt content in these effluents, caused by the practices of salting during olives preservation.…”

supporting

confidence: 90%

Agronomic Impact and Phytotoxicity of Olive Mill Wastewater as a Biofertilizer on Vicia faba L.

Kasmi,

Khattach,

Makaoui

et al. 2024

Ecol. Eng. Environ. Technol.

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The Moroccan olive oil industries generate a substantial amount of olive mill wastewater (OMW), causing a significant environmental issue. Consequently, its valorization represents a sustainable agroecological solution to the environmental problems caused by this uncontrolled discharge. In this context, the use of OMW as an organic biofertilizer in agriculture has been suggested as an alternative to restore soil fertility and improve agricultural production. To comprehensively understand its impact, the conducted study focused on the local cultivar Vicia faba L., investigating the consequences of daily applications of OMW at varying doses (5%, 10%, 20%, 30%). In the experimental design, NaCl solutions, mimicking the electrical conductivity of OMW, were used to pinpoint the potential phytotoxic agents within the wastewater. The results revealed that a high dose of OMW had significant effects on morphological, physiological, and biochemical parameters. Additionally, phytotoxicity depended on both OMW concentration and the growth stage of Vicia faba L., causing growth delays, germination inhibition, as well as the accumulation of proline and soluble sugars. These findings underscore the complexity of using OMW in agriculture and highlight the critical importance of precise control over application rates for the success of this approach. While reusing OMW presents a viable and practical solution, a nuanced understanding of its impact on specific crops and a meticulous approach to dosage management are imperative to realize its potential benefits and mitigate any potential risks to crop productivity.

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supporting

confidence: 90%

Agronomic Impact and Phytotoxicity of Olive Mill Wastewater as a Biofertilizer on Vicia faba L.

Kasmi,

Khattach,

Makaoui

et al. 2024

Ecol. Eng. Environ. Technol.

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“…This value belongs to the conductivity range (between 10 and 50 ms/cm)[Tsioulpas and al., 2002]. However, the polyphenol content (0.321 g/L) remains relatively low but is within the range of the literature (0.1 and 17.5 g/L)[Benaddi and al., 2022]. The OMW are rich in organic matter as shown by the values of COD (10560 mgO 2 /l) and BOD 5 (410 mgO 2 /l), these are relatively low to the amounts cited by other researchers[Bargougui and al., 2019] (Table1).…”

supporting

confidence: 64%

Study of the Phytotoxicity of Olive Mill Wastewater on Germination and Vegetative Growth – Case of Tomato (Solanum lycopersicum L).

Ghizlane

2023

Ecol. Eng. Environ. Technol.

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Olive mill wastewater (effluents from olive oil extraction during harvest) is a source of environmental pollution due to its high acidity and heavy loads of polyphenols and organics. Our aim is to study the phytotoxicity of olive mill wastewater (OMW) at different concentrations on the germination and growth of tomatoes (Solanum lycopersicum L.). To assess this, we measured the percentage of germination (GP), the germination inhibition rate (GIR), the length of the main stem, the number of leaves, and the biomass of the stem, leaves, and roots. The germination test was carried out by placing 25 tomato seeds on filter paper in Petri dishes and then irrigating with different concentrations of OMW (0%, 1%, 2%, 5%, 7%, 10%). The boxes were placed in an incubator at a temperature of 25 °C for 10 days. The results obtained show that, after 10 days of germination, the GP is maximal (more than 98%) at concentrations of less than 7% (r = -0.98; p<0.000) and with an "inhibitory" effect at more than 7% (r = +0.98; p<0.000). However, the growth in length (8.514±2.612 cm) and the number of leaves (4.667±0.866 leaves) were maximum, respectively, at 2% and 1%, after a period of 30 days. However, the dry weight is maximum (0.235±0.049 g) at 5% OMW, however, there is no significant difference in the fresh and dry weights of the stems and leaves for different concentrations. In light of these results, the OMW of crushing units using the continuous three-phase process could be used as an irrigation source at concentrations below 7%, for better tomato yield.

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“…In Morocco, water resources are in danger because of discharges from industrial activities [Smahi et al 2013;Benaddi et al 2022a]. These discharges are loaded with organic matter, heavy metals, and phenolic compounds [Dregulo and Bobylev 2021;Benaddi et al 2021; Benaddi et al 2022b].…”

Section: Introductionmentioning

confidence: 99%

Impact of Landfill Leachate on Groundwater Quality – A Comparison Between Three Different Landfills in Morocco

Benaddi¹,

Ferkan²,

Bouriqi³

et al. 2022

J. Ecol. Eng.

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In this work, physicochemical and bacteriological analyses of leachate collected from three different landfills in the Marrakech region in Morocco were carried out. The results showed that the leachate is highly loaded with organic matter, chemical and bacteriological elements and some heavy metals, this load depends of the nature of landfill (rural or urban) and also of its age (young or old), the values of the parameters exceed the limit values for discharge into the natural medium. Physicochemical and bacteriological analyses of groundwater from wells downstream of these landfills were also carried out; The results showed that they had medium to poor quality according to the type of landfill. This is due to the presence of organic matter, total coliforms, total phosphorus and total nitrogen in many studied wells.

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The Environmental Problem of Olive Mill Waste Water in Morocco: Data Analysis and Characterization

Cited by 5 publications

References 8 publications

Agronomic Impact and Phytotoxicity of Olive Mill Wastewater as a Biofertilizer on <i>Vicia faba</i> L.

Agronomic Impact and Phytotoxicity of Olive Mill Wastewater as a Biofertilizer on <i>Vicia faba</i> L.

Study of the Phytotoxicity of Olive Mill Wastewater on Germination and Vegetative Growth – Case of Tomato (S<i>olanum lycopersicum</i> L).

Impact of Landfill Leachate on Groundwater Quality – A Comparison Between Three Different Landfills in Morocco

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