An Innovative Device to Convert Olive Mill Wastewater into a Suitable Effluent for Feeding Purple Non-Sulfur Photosynthetic Bacteria
A device (prototype) with a working volume of 200 L was used to deplete olive mill wastewater (OMW) of polyphenols. The OMW transformed into feedstock by means of the device was then used for feeding a lab-scale photobioreactor, just for testing the production of bioH2. The main novelty of this prot...
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doaj-f93f80dad961480f92562661953136972020-11-24T22:57:47ZengMDPI AGResources2079-92762015-08-014362163610.3390/resources4030621resources4030621An Innovative Device to Convert Olive Mill Wastewater into a Suitable Effluent for Feeding Purple Non-Sulfur Photosynthetic BacteriaPietro Carlozzi0Giulia Padovani1Patrizia Cinelli2Andrea Lazzeri3Istituto per lo Studio degli Ecosistemi, Sede di Firenze, Consiglio Nazionale delle Ricerche, Polo Scientifico, Sesto Fiorentino 50019, Firenze, ItalyIstituto per lo Studio degli Ecosistemi, Sede di Firenze, Consiglio Nazionale delle Ricerche, Polo Scientifico, Sesto Fiorentino 50019, Firenze, ItalyIstituto per i Processi Chimico-Fisici, Consiglio Nazionale delle Ricerche, Unità di Pisa, Via Moruzzi 1, Pisa 56126, ItalyConsorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM) c/o Dipartimento di Ingegneria Civile e Industriale, Università degli Studi di Pisa, Pisa 56126, ItalyA device (prototype) with a working volume of 200 L was used to deplete olive mill wastewater (OMW) of polyphenols. The OMW transformed into feedstock by means of the device was then used for feeding a lab-scale photobioreactor, just for testing the production of bioH2. The main novelty of this prototype consists in the combination of several adsorbent matrices and the exploitation of their synergic action. In this investigation, three matrices have been used: active carbon, Azolla and zeolite. The device was operated at an olive oil company located in the heart of the Chianti zone (Province of Florence, Italy). The efficiency of polyphenol removal obtained using the device was ≥96%. The multi-matrix effluent (MMeff) generated was then used to obtain three different culture broths containing 25%, 50% and 100% of MMeff, respectively. The diluted (with water) culture broths were suitable for hydrogen generation, with the highest hydrogen production rate (12.7 mL H2/Lculture/h) being obtained using 50% MMeff. The hydrogen yields were: 334 mL H2/L of MMeff, when feeding the photofermenter with pure effluent (100%); 1308 mL H2/L of MMeff, with the half-diluted effluent (50%, v/v); and 432 mL H2/L of MMeff, with the highest-diluted effluent (25%, v/v).http://www.mdpi.com/2079-9276/4/3/621olive mill wastewaterpretreatmentdephenolizationadsorbent matricesfeedstockhydrogen photo-productionRhodopseudomonas palustris |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Pietro Carlozzi Giulia Padovani Patrizia Cinelli Andrea Lazzeri |
spellingShingle |
Pietro Carlozzi Giulia Padovani Patrizia Cinelli Andrea Lazzeri An Innovative Device to Convert Olive Mill Wastewater into a Suitable Effluent for Feeding Purple Non-Sulfur Photosynthetic Bacteria Resources olive mill wastewater pretreatment dephenolization adsorbent matrices feedstock hydrogen photo-production Rhodopseudomonas palustris |
author_facet |
Pietro Carlozzi Giulia Padovani Patrizia Cinelli Andrea Lazzeri |
author_sort |
Pietro Carlozzi |
title |
An Innovative Device to Convert Olive Mill Wastewater into a Suitable Effluent for Feeding Purple Non-Sulfur Photosynthetic Bacteria |
title_short |
An Innovative Device to Convert Olive Mill Wastewater into a Suitable Effluent for Feeding Purple Non-Sulfur Photosynthetic Bacteria |
title_full |
An Innovative Device to Convert Olive Mill Wastewater into a Suitable Effluent for Feeding Purple Non-Sulfur Photosynthetic Bacteria |
title_fullStr |
An Innovative Device to Convert Olive Mill Wastewater into a Suitable Effluent for Feeding Purple Non-Sulfur Photosynthetic Bacteria |
title_full_unstemmed |
An Innovative Device to Convert Olive Mill Wastewater into a Suitable Effluent for Feeding Purple Non-Sulfur Photosynthetic Bacteria |
title_sort |
innovative device to convert olive mill wastewater into a suitable effluent for feeding purple non-sulfur photosynthetic bacteria |
publisher |
MDPI AG |
series |
Resources |
issn |
2079-9276 |
publishDate |
2015-08-01 |
description |
A device (prototype) with a working volume of 200 L was used to deplete olive mill wastewater (OMW) of polyphenols. The OMW transformed into feedstock by means of the device was then used for feeding a lab-scale photobioreactor, just for testing the production of bioH2. The main novelty of this prototype consists in the combination of several adsorbent matrices and the exploitation of their synergic action. In this investigation, three matrices have been used: active carbon, Azolla and zeolite. The device was operated at an olive oil company located in the heart of the Chianti zone (Province of Florence, Italy). The efficiency of polyphenol removal obtained using the device was ≥96%. The multi-matrix effluent (MMeff) generated was then used to obtain three different culture broths containing 25%, 50% and 100% of MMeff, respectively. The diluted (with water) culture broths were suitable for hydrogen generation, with the highest hydrogen production rate (12.7 mL H2/Lculture/h) being obtained using 50% MMeff. The hydrogen yields were: 334 mL H2/L of MMeff, when feeding the photofermenter with pure effluent (100%); 1308 mL H2/L of MMeff, with the half-diluted effluent (50%, v/v); and 432 mL H2/L of MMeff, with the highest-diluted effluent (25%, v/v). |
topic |
olive mill wastewater pretreatment dephenolization adsorbent matrices feedstock hydrogen photo-production Rhodopseudomonas palustris |
url |
http://www.mdpi.com/2079-9276/4/3/621 |
work_keys_str_mv |
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