Potential valorization of polyphenols from olive mill wastewater on sheep rumen function

Hamimed, Selma; Kthiri, Ameni

doi:10.1007/s13762-022-04120-z

Cited by 4 publications

(1 citation statement)

References 54 publications

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“…Maldonado et al 2014). The surface charge density of the particles tends to decrease under strongly acidic pH conditions due to the increase of the ionic strength, which compresses the thickness of the electric double layer (Singh et alPolyphenols are environmentally toxic substances(Hamimed and Kthiri 2022). Vegetable oil re neries are one of the primary industries that often release toxic substances into the environment(Haddaji et al 2022).…”

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Contamination reduction of vegetable oil refinery wastewater using innovative acid and basic chemical flotation processes

Hartal,

Souabi,

Chatoui

et al. 2023

Preprint

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Vegetable oil refineries produce a large amount of wastewater, creating several environmental problems that threaten aquatic life. These wastewaters present significant challenges for treatment techniques due to their high and complex pollution characteristics. This study presents the application of flotation processes in acid medium or basic medium of vegetable oil refinery wastewater to reduce turbidity, oil, grease, chemical oxygen demand (COD), and phosphorus total, polyphenols, nitrates, phenolic compounds measured at 254 nm and color. Application of acid flotation reduced turbidity (96.9%), COD (79%), nitrate (97.8%), total phosphorus (99.8%), polyphenol (86.6%), absorbance at 254 nm (90.8%), oil and grease (98.5%) and color (96.6%). However, the application of basic flotation showed a reduction in turbidity (25.7%), COD (37.5%), nitrates (91.6%), total phosphorus (88%), polyphenols (66.3%), absorbance at 254 nm (64.7%), oil and grease (68.8%) and color (73.9%). Therefore, this flotation process in an acidic or basic medium can be considered among the most effective processes for reducing wastewater pollution from vegetable oil refineries.

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confidence: 99%