Publications by authors named "L Elleuch"
Article Synopsis
- Kefir grains, a mix of bacteria and yeasts, were studied for their effectiveness in treating a high organic matter blend of Gouda cheese whey and white wastewaters.
- Under optimal conditions (1.02% Kefir concentration, 36.68°C, 5.14 days), the treatment led to significant removal of COD, PO, and NO pollutants, with efficiencies of 87%, 37.48%, and 39.5% respectively.
- The study also identified specific microbial strains from the grains, and found that treated wastewater improved seed germination and growth in barley, making Kefir grains not just useful for waste treatment but also beneficial for agriculture.
Article Synopsis
- Wastewater from landfill sites contains high levels of pollutants, necessitating effective treatment technologies such as biological processes and physico-chemical methods, with bioremediation emerging as a promising solution.
- Researchers assessed the performance of yeast and bacteria isolated from kefir grains for treating landfill leachate, finding that a co-culture of specific microorganisms was particularly effective.
- The co-culture resulted in significant removal rates of contaminants, achieving over 75% reduction in chemical oxygen demand, ammonium nitrogen, and heavy metals like Ni and Cd, indicating the potential of using kefir grain microbes for bioremediation.
The strain TN638 was isolated from Tunisian soil contaminated with industrial wastewater and selected for its potent antimicrobial activity against the tested Gram positive bacteria: Staphylococcus aureus (S. aureus) ATCC 6538 and Listeria monocytogenes (L. monocytogenes) ATCCC 19117, and Gram negative bacteria: Agrobacterium tumefaciens (A.
View Article and Find Full Text PDFThis study investigates the performance of the combination of biological pre-treatment with Kefir grains (KGs) and photocatalytic process using Ag-doped TiO nanoparticles (NPs) for the simultaneous removal of toxic pollutants from landfill leachate (LFL). After 5 days of 1% (w/v) KGs pre-treatment at 37 °C, TOC, COD, NH-N, and PO removal rates were 93, 83.33, 70 and 88.
View Article and Find Full Text PDFResiduals are responsible for the polluting load increase of soft drink industry wastewater due to their high sugar contents. The present work proposes an upstream segregation of residuals to be biologically treated by the bioconversion of their carbohydrates content into baker's yeast biomass. Carbonated soft drinks (CSD) and nectars and juices (NJ) ranges were considered.
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