Pilot-plant treatment of olive mill wastewaters by Phanerochaete chrysosporium coupled to anaerobic digestion and ultrafiltration

2006 ◽  
Vol 41 (1) ◽  
pp. 159-167 ◽  
Author(s):  
Abdelhafidh Dhouib ◽  
Fathi Aloui ◽  
Naima Hamad ◽  
Sami Sayadi
Keyword(s):  
Anaerobic Digestion ◽  
Phanerochaete Chrysosporium ◽  
Pilot Plant ◽  
Olive Mill Wastewaters ◽  
Plant Treatment ◽  
Olive Mill

Pilot-plant results of the electro-Fenton treatment of olive mill wastewaters followed by anaerobic digestion

2007 ◽  
Vol 55 (12) ◽  
pp. 259-265 ◽  
Author(s):  
S. Khoufi ◽  
F. Feki ◽  
F. Aloui ◽  
S. Sayadi
Keyword(s):  
Anaerobic Digestion ◽  
High Energy ◽  
Water Recovery ◽  
Combined Process ◽  
Integrated Technology ◽  
Mediterranean Countries ◽  
Olive Mill Wastewaters ◽  
Pre Treatment ◽  
Treatment Step ◽  
Olive Mill

In this work, we investigated an integrated technology for the treatment of the recalcitrant contaminants of olive mill wastewaters (OMW), allowing water recovery and reuse for agricultural purposes. The method involves an electrochemical pre-treatment step of the wastewater using the electro-Fenton reaction followed by an anaerobic bio-treatment. The electro-Fenton pre-treatment process removed 66% of the total polyphenolic compounds and subsequently decreased the OMW toxicity from 100 to 66.9% which resulted in improving the performance of the anaerobic digestion. A continuous lab-scale methanogenic reactor was operated at a loading rate of 10 g COD/L day without any apparent toxicity. Furthermore, in the combined process, a high overall reduction in COD, suspended solids, polyphenols and lipids content was achieved by the two successive stages. Moreover, this combined process which was experimented at a real scale (25 m3 digester), demonstrated its technical feasibility and opens promising perspectives for industrial application in the Mediterranean countries due to its easy conception and its high energy (methane) production.

Pilot-plant results of the electro-Fenton treatment of olive mill wastewaters followed by anaerobic digestion

2007 ◽  
Vol 55 (12) ◽  
pp. 67-73 ◽  
Author(s):  
S. Khoufi ◽  
F. Feki ◽  
F. Aloui ◽  
S. Sayadi
Keyword(s):  
Anaerobic Digestion ◽  
High Energy ◽  
Water Recovery ◽  
Combined Process ◽  
Integrated Technology ◽  
Mediterranean Countries ◽  
Olive Mill Wastewaters ◽  
Pre Treatment ◽  
Treatment Step ◽  
Olive Mill

In this work, we investigated an integrated technology for the treatment of the recalcitrant contaminants of olive mill wastewaters (OMW), allowing water recovery and reuse for agricultural purposes. The method involves an electrochemical pre-treatment step of the wastewater using the electro-Fenton reaction followed by an anaerobic bio-treatment. The electro-Fenton pre-treatment process removed 66% of the total polyphenolic compounds and subsequently decreased the OMW toxicity from 100 to 66.9%, which resulted in improving the performance of the anaerobic digestion. A continuous laboratory-scale methanogenic reactor was operated at a loading rate of 10 g COD/L per day without any apparent toxicity. Furthermore, in the combined process, a high overall reduction in COD, suspended solids, polyphenols and lipids content was achieved by the two successive stages. Moreover, this combined process which was experimented at a real scale (25 m3 digester) demonstrated its technical feasibility and opens promising perspectives for industrial application in the Mediterranean countries because of its easy conception and high energy (methane) production.

Recovery of VFAs from anaerobic digestion of dephenolized Olive Mill Wastewaters by Electrodialysis

2016 ◽  
Vol 159 ◽  
pp. 81-91 ◽  
Author(s):  
Alberto Scoma ◽  
Felipe Varela-Corredor ◽  
Lorenzo Bertin ◽  
Carlo Gostoli ◽  
Serena Bandini
Keyword(s):  
Anaerobic Digestion ◽  
Olive Mill Wastewaters ◽  
Olive Mill
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