alexa <p>The Application of Transparent Glass Sponge for Improvement of Light Distribution in Photobioreactors</p> | OMICS International | Abstract
ISSN: 2155-9821

Journal of Bioprocessing & Biotechniques
Open Access

Like us on:
OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations

700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Research Article

The Application of Transparent Glass Sponge for Improvement of Light Distribution in Photobioreactors

Anna Jacobi1, Ethel Claudia Bucharsky2, Karl Guenter Schell2, Peter Habisreuther3, Rainer Oberacker2, Michael J. Hoffmann2, Nikolaos Zarzalis3 and Clemens Posten1*
1Karlsruhe Institute of Technology KIT, Institute of Engineering in Life Sciences, Department of Bioprocess Engineering, Fritz-Haber-Weg 2, Building 30.44, 76131 Karlsruhe, Germany
2Karlsruhe Institute of Technology KIT, Institute for Applied Materials - Ceramics in Mechanical Engineering, Haid-und-Neu-Str. 7, 76131 Karlsruhe, Germany
3Karlsruhe Institute of Technology KIT, Engler-Bunte-Institute, Division of Combustion Technology, Engler-Bunte-Ring 1, Building 40.11,76128 Karlsruhe, Germany
Corresponding Author : Clemens Posten
Karlsruhe Institute of Technology KIT
Institute of Engineering in Life Sciences
Department Bioprocess Engineering, Fritz-Haber-Weg 2
Building 30.44, 76131 Karlsruhe, Germany
Tel: +49 721 60845200
Fax: +49 721 60845202
E-mail: [email protected]
Received December 07, 2011; Accepted January 20, 2012; Published January 23, 2012
Citation: Jacobi A, Bucharsky EC, Schell KG, Habisreuther P, Oberacker R, Hoffmann MJ, et al. (2012) The Application of Transparent Glass Sponges for Improvement of Light Distribution in Photobioreactors. J Bioprocess Biotechniq 2:113. doi:10.4172/2155-9821.1000113
Copyright: © 2012 Jacobi A, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

 A new concept for improving light dilution and light distribution in photobioreactors by applying transparent, openpored sponges was realized during cultivation experiments. A manufacturing process based on the polymer replica technique was established. A polyurethane template is impregnated with a nanoscaled SiO2 powder suspension (solids loading of 60 wt% at around pH 10) and dried. The green body is prepared by burning-out the polymer at 800°C. Subsequently the sintering of the remaining SiO2 structure to transparent cellular bodies is carried out at 1330°C. Many different factors influence the process. The slurry stabilization (viscosity, zeta-potential, pH) is important to generate a stable and self-supporting SiO2 shell around the template and achieve appropriate green bodies. The sintering temperature determines the transition of amorphous (transparent) into crystalline silica. The 8 ppi sponge has a porosity of 0.9, the specific surface area of 568 m-1 means an increase of the (inner) surface to volume ratio of the reactor. Porous glass has a very high surface to volume ratio (about 0.26 m2/g of glass at 10 μm pore size). Because of multiple and complex reflection of light into the porous glass, the algae can obtain light energy at any location of the total volume. First cultivation experiments in special designed Miniplate reactors show an increase in growth rate (about +25%) at low cell densities. The photo conversion efficiency was enlarged from 4.9% for the empty reactor to 5.6% and 5.9% for the 8 and 15 ppi sponge filled reactor. The effect and the improved efficiency of biomass build-up per applied light will be more apparent at high cell densities. Therefore concentration of the standard Tris-Phosphate (TP) medium (2.5 fold) and feeding are necessary.

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2018-19
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri & Aquaculture Journals

Dr. Krish

[email protected]

1-702-714-7001Extn: 9040

Biochemistry Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Business & Management Journals

Ronald

[email protected]

1-702-714-7001Extn: 9042

Chemistry Journals

Gabriel Shaw

[email protected]

1-702-714-7001Extn: 9040

Clinical Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Engineering Journals

James Franklin

[email protected]

1-702-714-7001Extn: 9042

Food & Nutrition Journals

Katie Wilson

[email protected]

1-702-714-7001Extn: 9042

General Science

Andrea Jason

[email protected]

1-702-714-7001Extn: 9043

Genetics & Molecular Biology Journals

Anna Melissa

[email protected]

1-702-714-7001Extn: 9006

Immunology & Microbiology Journals

David Gorantl

[email protected]

1-702-714-7001Extn: 9014

Materials Science Journals

Rachle Green

[email protected]

1-702-714-7001Extn: 9039

Nursing & Health Care Journals

Stephanie Skinner

[email protected]

1-702-714-7001Extn: 9039

Medical Journals

Nimmi Anna

[email protected]

1-702-714-7001Extn: 9038

Neuroscience & Psychology Journals

Nathan T

[email protected]

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

Ann Jose

[email protected]

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

[email protected]

1-702-714-7001Extn: 9042

 
© 2008- 2018 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version