1.

Record Nr.

UNINA9910571740903321

Autore

Adessi Alessandra

Titolo

Hydrogen production using Purple Non-Sulfur Bacteria (PNSB) cultivated under natural or artificial light conditions with synthetic or fermentation derived substrates / / Alessandra Adessi

Pubbl/distr/stampa

[Place of publication not identified] : , : Firenze University Press, , 2013

©2013

Descrizione fisica

1 online resource (134 pages)

Disciplina

665.81

Soggetti

Hydrogen - Biotechnology

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di bibliografia

Includes bibliographical references and index.

Sommario/riassunto

The aim of this thesis was to verify the feasibility of the hydrogen production process with purple non sulfur bacteria both under sunlight irradiation in an up-scaled system and with the use of low cost substrates. Among the products offermentations tested the best results were obtained with a medium derived from vegetable wastes. The use of a genetically modified strain of Rhodopseudomonas palustris insensitive to ammonium opened the way towards the use of wastes with attainment of high hydrogen yields also in inhibiting conditions. The experimentation carried out under natural irradiation demonstrated the full feasibility of the process using sunlight instead of artificial light in a semi-pilot reactor: the production rates were the highest so far reported for comparable outdoor systems.



2.

Record Nr.

UNINA9910694491103321

Titolo

Renewing the spirit of national and community service : hearing before the Subcommittee on Healthy Families and Communities, Committee on Education and Labor, U.S. House of Representatives, One Hundred Tenth Congress, first session, hearing held in Washington, DC, April 19, 2007

Descrizione fisica

1 online resource (iii, 49 p.)

Soggetti

National service - United States

Voluntarism - United States - Evaluation

Volunteer workers in social service - Recruiting - United States

Social service - United States - Citizen participation

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia