Residues of the transformation of halieutics products: An alternative substrate for energy valorization of wastes by methanisation for a local sustainable development (preliminary results)

Women entrepreneurship is an inherent part of management compositions that stakeholders employ extensively to decipher ecumenical challenges. Given the status, the question occurs what it takes to transform women into entrepreneurs, particularly in circular bio-economies, before exploiting the entrepreneurial opportunities available with circular bio-economies, the collective efforts needed in the women entrepreneurship sphere. Research in this course was conducted based on expert opinion using the total interpretive structural modelling (TISM) technique. It depicts the twelve elements along with their causal relationship in the digraph with bold and transitive links. The study reveals that the hierarchical structural framework (digraph) is divided into six layers and three components stand in the first position. They are pro-social behaviour, emotional attachment, quality family fabrications, whereas technology transfer is at the bottom of the model. Further, in MICMAC analysis, all the elements are classified into autonomous, dependent, driving and linkage headings. A proper enhancement of these variables can augment several functions of the stakeholders.

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Anaerobic Co-Digestion of Fish Processing Waste with Cow Manure and Waste of Market (Rests of Fruits and Vegetables): A Lab Scale Batch Test

Kébé¹,

Rieker²,

Fall³

et al. 2021

JSBS

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The aim of this work was to use fish processing waste (FW) as main substrate for anaerobic digestion. To enhance the biogas production of FW, co-digestion was done with two other substrates: cow dung (CD) and waste of market (MW). Batch test was carried out in an 1 L glass digester in a temperature controlled chamber at 38˚C. The following mixtures were carried out: FW with CD respectively at different ratios 100:0% (A), 80:20% (B) and 60:40% (C); FW with MW at the following ratio 80:20% (D); FW with CD and MW respectively at these ratios 80:10:10% (F) and 60:20:20% (G). The biogas produced was measured using a milligas counter ® and the volume of gas was recorded. The gas composition was determined using gas chromatography. With a pH stable for raw substrates and mixtures, TS and VS (%TS) contents for FW were respectively 31.01% and 91.55%. Between 3 to 13 days of experimentation, the highest flow rate was observed. The percentage of methane was more important for mixtures B and D, 61% and 59% respectively. pH and VOA/TIC were stable at the end of the batch test for all mixtures, meaning that the organic matter was already well digested. The highest values of Volatile Solid Removal (VSR) were found for mixtures C, D, F and G. Therefore, the promising mixtures for next experimentations in large scale are B and D.

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Residues of the transformation of halieutics products: An alternative substrate for energy valorization of wastes by methanisation for a local sustainable development (preliminary results)

Cited by 4 publications

References 2 publications

Study of the Impact of a Biological Activator on Codigestion Between Typha Domingensis and Cow Dung in Laboratory-Scale Mini-reactors

Study of the Impact of a Biological Activator on Codigestion Between Typha Domingensis and Cow Dung in Laboratory-Scale Mini-reactors

Women Entrepreneurs in Circular Bio-economies

Anaerobic Co-Digestion of Fish Processing Waste with Cow Manure and Waste of Market (Rests of Fruits and Vegetables): A Lab Scale Batch Test

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