Energetic valorisation of olive mill wastewater impregnated on low cost absorbent: Sawdust versus olive solid waste

Energy ◽  
2012 ◽  
Vol 39 (1) ◽  
pp. 74-81 ◽  
Author(s):  
Ajmia Chouchene ◽  
Mejdi Jeguirim ◽  
Alain Favre-Reguillon ◽  
Gwenaelle Trouvé ◽  
Gérard Le Buzit ◽  
...  
Keyword(s):  
Solid Waste ◽  
Low Cost ◽  
Olive Mill Wastewater ◽  
Olive Mill

scholarly journals Screening of low-cost materials as heterogeneous catalysts for olive mill wastewater Fenton’s peroxidation

2020 ◽  
Vol 6 ◽  
pp. 161-167
Author(s):  
E. Domingues ◽  
F. Rodrigues ◽  
J. Gomes ◽  
M.J. Quina ◽  
S. Castro-Silva ◽  
...  
Keyword(s):  
Heterogeneous Catalysts ◽  
Low Cost ◽  
Olive Mill Wastewater ◽  
Olive Mill

Olive mill wastewater treatment using a simple zeolite-based low-cost method

2014 ◽  
Vol 145 ◽  
pp. 341-348 ◽  
Author(s):  
Anwar A. Aly ◽  
Yousef N.Y. Hasan ◽  
Abdullah S. Al-Farraj
Keyword(s):  
Wastewater Treatment ◽  
Low Cost ◽  
Olive Mill Wastewater ◽  
Olive Mill

scholarly journals Towards PHA production from wastes: The bioconversion potential of different activated sludge and food industry wastes into VFAs through acidogenic fermentation

2021 ◽  
Author(s):  
Gabriela Montiel-Jarillo ◽  
Teresa Gea ◽  
Adriana Artola ◽  
Javier Fuentes ◽  
Julián Carrera ◽  
...  
Keyword(s):  
Activated Sludge ◽  
Low Cost ◽  
Carbon Sources ◽  
Olive Mill Wastewater ◽  
High Rate ◽  
Methanogenic Activity ◽  
Batch Tests ◽  
Acidogenic Fermentation ◽  
Pha Production ◽  
Olive Mill

Abstract Acidogenic fermentation of wastes produces volatile fatty acid (VFA)-rich streams that can be used as low-cost carbon sources for polyhydroxyalkanoate (PHA) production. In this study, an inoculum collected from an anaerobic reactor of a municipal WWTP was conditioned to suppress methanogenic activity. The heat-shock conditioning method of the inoculum proved to be more efficient than acid and alkaline conditioning methods for methanogen inhibition. Then, the pre-conditioned inoculum was used to determine the acidogenic potential of different wastes: three waste activated sludge (WAS) samples generated at different sludge retention times (SRTs, 2, 7 and 14 days), olive mill wastewater (OMW), glycerol, apple pomace (AP) and winterization oil cake (WOC). Batch tests were performed in quintuplicate at 37°C and pH 7. A higher degree of acidification was observed for high-rate activated sludge (2 days of SRT) (69%), followed by olive mill wastewater (OMW) (43%), while the lowest was for glycerol (16%). The results for the winterization oil cake (WOC) samples interestingly elucidated a high content of propionic acid with a high odd-to-even ratio (0.86) after fermentation. Feeding the VFA profile obtained from WOC into a PHA production system led to a significant production of 0.64 g PHA g− 1 C with 30% polyhydrobutyrate (PHB) to 69% polyhydroxyvalerate (PHV) as monomeric units of HB-co-HV, decoupling the need for a related carbon source for co-polymer production.

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