Valorisation of agro-industrial by-products, effluents and waste: concept, opportunities and the case of olive mill wastewaters

2009 ◽  
Vol 84 (6) ◽  
pp. 895-900 ◽  
Author(s):  
Federico Federici ◽  
Fabio Fava ◽  
Nicolas Kalogerakis ◽  
Dionissios Mantzavinos
Keyword(s):  
Olive Mill Wastewaters ◽  
By Products ◽  
Olive Mill

Olive mill wastewater biological treatment by fungi biomass

2007 ◽  
Vol 55 (10) ◽  
pp. 89-97 ◽  
Author(s):  
S. Caffaz ◽  
C. Caretti ◽  
M. Morelli ◽  
C. Lubello ◽  
E. Azzari
Keyword(s):  
Phenolic Compounds ◽  
Olive Oil ◽  
Biological Treatment ◽  
Batch Reactor ◽  
Food Industries ◽  
Olive Mill Wastewaters ◽  
Biomass Activity ◽  
The One ◽  
By Products ◽  
Olive Mill

Olive oil extraction is one of the most important traditional food industries in the Mediterranean region, especially in Italy. In addition to olive oil, this industry produces by-products, in particular olive mill wastewaters (OMWs) and olive husks, which represent a serious environmental problem. OMWs can be rarely treated in a municipal WWTP, using conventional wastewater treatments. A novel biological process has to be considered in order to treat OMWs. Literature data show that yeasts and different kinds of fungi are able to reduce both the organic and the phenolic content of the OMW. The present work is aimed at investigating the growth of a biomass rich in fungi in a batch reactor filled with OMW and its capacity to degrade the organic and phenolic load. The aerobic OMW degradation obtained using this biomass reached a COD and TP removal efficiency of 86 and 70%, respectively. Respirometric tests have been carried out in order to measure the biomass activity on different substrates: OMW and phenolic compounds (gallic and p-coumaric acids). The polyphenolic biodegradation efficiency of fungi biomass was higher than the one of a non-acclimated activated sludge biomass. Fungi biomass was able to completely degrade pure phenolic compounds.

scholarly journals Bioconversion of p-Tyrosol into Hydroxytyrosol under Bench-Scale Fermentation

2018 ◽  
Vol 2018 ◽  
pp. 1-5 ◽  
Author(s):  
Zouhaier Bouallagui ◽  
Sami Sayadi
Keyword(s):  
Experimental Design ◽  
Dry Matter ◽  
Specific Productivity ◽  
Bench Scale ◽  
Olive Mill Wastewaters ◽  
Rich Solution ◽  
Olive Mill

Tyrosol hydroxylating Pseudomonas strain was previously isolated from olive mill wastewaters-irrigated soil. In the present work, experimental design was used to study the bioconversion of tyrosol in laboratory fermenters aiming at the recovery of the highest yields of hydroxytyrosol. The effects of biocatalyst loading and tyrosol concentration were studied. The bioconversion yield reached 86.9% (37.3 mM hydroxytyrosol) starting from a tyrosol concentration of 43 mM. Under these conditions, the specific productivity relative to the biocatalyst was 4.78 μM/min/g. The established model to predict bioconversion yield was validated in two bench-scale fermenters. At the downstream stage, the reaction product was recovered as a hydroxytyrosol rich solution after microfiltration and concentration under vacuum. Subsequent to this operation, hydroxytyrosol composition yielded 73.8% of the total dry matter.

Bioremediation of Olive-Mill Wastewaters By Composting

1995 ◽  
Vol 13 (6) ◽  
pp. 509-518 ◽  
Author(s):  
U. Tomati ◽  
E. Galli ◽  
L. Pasetti ◽  
E. Volterra
Keyword(s):  
Olive Mill Wastewaters ◽  
Olive Mill

Olive-mill wastewaters: a promising substrate for microbial lipase production

2006 ◽  
Vol 97 (15) ◽  
pp. 1828-1833 ◽  
Author(s):  
Alessandro D’Annibale ◽  
Giovanni Giovannozzi Sermanni ◽  
Federico Federici ◽  
Maurizio Petruccioli
Keyword(s):  
Lipase Production ◽  
Microbial Lipase ◽  
Olive Mill Wastewaters ◽  
Olive Mill

Polyphenolic characterization of olive mill wastewaters, coming from Italian and Greek olive cultivars, after membrane technology

2014 ◽  
Vol 65 ◽  
pp. 301-310 ◽  
Author(s):  
Isabella D'Antuono ◽  
Vassiliki G. Kontogianni ◽  
Kali Kotsiou ◽  
Vito Linsalata ◽  
Antonio F. Logrieco ◽  
...  
Keyword(s):  
Membrane Technology ◽  
Olive Mill Wastewaters ◽  
Olive Cultivars ◽  
Olive Mill

Cleaning of olive mill wastewaters by visible light activated carbon doped titanium dioxide

RSC Advances ◽  
2015 ◽  
Vol 5 (104) ◽  
pp. 85586-85591 ◽  
Author(s):  
Francesca Cuomo ◽  
Francesco Venditti ◽  
Andrea Ceglie ◽  
Antonella De Leonardis ◽  
Vincenzo Macciola ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Activated Carbon ◽  
Visible Light ◽  
Olive Mill Wastewater ◽  
Total Phenols ◽  
Carbon Doped ◽  
Olive Mill Wastewaters ◽  
Doped Titanium Dioxide ◽  
Olive Mill

Visible light activated carbon doped titanium dioxide fully works in the removal of total phenols from olive mill wastewater.

Comparison of the performance of UF membranes in olive mill wastewaters treatment

2011 ◽  
Vol 45 (10) ◽  
pp. 3197-3204 ◽  
Author(s):  
A. Cassano ◽  
C. Conidi ◽  
E. Drioli
Keyword(s):  
Olive Mill Wastewaters ◽  
Wastewaters Treatment ◽  
Uf Membranes ◽  
Olive Mill
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