SCP production from olive black water

Ercoli, E.; Ertola, R. J.

doi:10.1007/bf00132228

Cited by 22 publications

(9 citation statements)

References 2 publications

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“…The remaining material is then often recycled into animal feed products. 6,7 The other waste is a liquid that is commonly known as 'blackwater' or 'olive mill water' (OMW). Fresh olive fruit can contain up to 70% 'vegetation' water and this is squeezed out during processing and separated from the basic pulp by centrifugation and/or other physico-chemical means.…”

Section: Introductionmentioning

confidence: 99%

Olive oil mill waste water as a replacement for fresh water in the manufacture of fired clay bricks

Mekki¹,

Anderson²,

Amar³

et al. 2006

J of Chemical Tech & Biotech

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This paper describes the introduction of olive mill wastewater (OMW) to replace fresh water normally used in clay brick manufacture. OMW is recognised as the major agro-food industry pollutant in the Mediterranean/North African olive-growing region. The research involved adding OMW to laboratory-produced clay bricks following the same making procedure used at a collaborating Tunisian brick factory. The samples containing OMW were found to be comparable in forming/extrusion performance to a control product that used fresh water. If introduced at the factory scale, this innovation would allow a substantial volume of OMW to be recycled, saving on the fresh water currently used in the brick-forming process. During the subsequent brick drying operation, most of the OMW (∼98% water) would be released as vapour. Once in the kiln, the remaining solids in the bricks (calorific value 21-23 MJ kg −1 ) would liberate additional heat, reducing the gross energy from fossil fuel currently required during firing.

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Section: Introductionmentioning

confidence: 99%

Olive oil mill waste water as a replacement for fresh water in the manufacture of fired clay bricks

Mekki¹,

Anderson²,

Amar³

et al. 2006

J of Chemical Tech & Biotech

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“…Some agro-wastes and industrial by-products that have been used for single cell protein (SCP) production are olive oil mill effluent (ERCOLI and ERTOLA 1983), citrus wastes (SUHASUKAN and YASIN 1986), vinasse, a by-product arising from ethanol and bakers yeast fermentation processes (SELIM et al 1991), orange peel (CURTO et al 1992), sugarcane bagasse pith (RODRIGUEZ-VAZQUEZ et al 1992), waste leather chharri, a by-product of leather board factories (MATHUR et al 1993) and industrial mussel processing waste (MURADO et al 1993).…”

mentioning

confidence: 99%

Growth kinetics of Rhodotorula rubra on different substrates

Hari

Patel

Martı́n

1993

J. Basic Microbiol.

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The growth of a red-pigmented yeast, isolated from yogurt and identified as Rhodotorulu rubra, was studied on various industrial and agricultural by-products. Peat hydrolysate when supplemented with peptone and yeast extract supported a satisfactory growth of the yeast. Ammonium hydroxide and ammonium sulfate were the best inorganic nitrogen sources. A yield of 11.8 g/1 was obtained on molasses and wort used in aconcentration of 10 and 40% (v/v), respectively. Molasses were pre-treated to be effective. The best yield of 14 g/l, however, was obtained on a richer medium composed of molasses, peptone and yeast extract. The pH profiles were also studied and growth was found within a broad pH zone of 3 -10.

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“…The observed pH increase was due to the consumption of organic acids such as lactic and acetic acids present in the OMWW [31], 1983 or also through release of NH₄⁺ after degradation of proteins. The results of pH showed that the best aerobic treatment can be obtained with Neutral Ph and under this conditions we obtained the result from figure .6.…”

Section: Fungal Remediation Of Omwwmentioning

confidence: 99%

Cactus Prickly Pears Extract for Coagulation/Flocculation Processes to Ameliore the Treatment of Olive Mill Waste Waters (OMWW)

Neffa¹,

Hanine²,

Taouir³

et al. 2017

Eco-Tech

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The oil industry, including olive oil, is one of the industries of food most pollutants, posing a serious environmental problem. In Morocco crushing units pouring the olive oil in their raw state without any prior treatment in the natural environment. These olive mill waste waters are characterized by low biodegradability because of phytotoxic and antibacterial substances (phenols, volatile fatty acids, insecticides…). They contain. This explains the persistence of pollution inherent in the (OMWW) observed over very long distances when they are discharged directly into rivers. Many techniques have been used to eliminate releases of (OMWW). These techniques, such as chemical or biological, are used individually or in combination. These techniques have shown the extent of their performance but also their limitations. This study aims to establish a process to use a novel flocculant and coagulant "Extract of cladodes from cactus "prickly pears" with clay in the coagulation-flocculation treatment. Among the expected subjects of this study: the performance evaluation process of purification and recovery of sludge from olive oil. For the coagulation-flocculation various tests will be conducted with one hand, the conventional coagulants (Ca2 +, Fe3 + and Al3 +) and, on the other hand, alginate, extract of cactus prickly pears, and other flocculants style peel pomegranate. The parameters to be monitored are COD, BOD5, conductivity, pH and total polyphenolic. Their coagulation and flocculation properties can be used to remove particulate inorganic or organic suspensions, and also dissolved organic substances as the polyphenolic compounds. This study gives an overview of the main results obtained in the treatment of various suspensions and solutions.

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SCP production from olive black water

Cited by 22 publications

References 2 publications

Olive oil mill waste water as a replacement for fresh water in the manufacture of fired clay bricks

Olive oil mill waste water as a replacement for fresh water in the manufacture of fired clay bricks

Growth kinetics of Rhodotorula rubra on different substrates

Cactus Prickly Pears Extract for Coagulation/Flocculation Processes to Ameliore the Treatment of Olive Mill Waste Waters (OMWW)

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