Sewage enriched by kitchen waste: potential for hydrogen production by bioprocesses

Bioreactors (jacketed systems) have been operated in batch using sewage from the local wastewater treatment plant enriched by two different organic waste fractions, i.e., kitchen waste artificially prepared according to literature and a real kitchen waste originating from a university restaurant.

The realisation that society has to adopt a more sustainable life style implies among others the reduction of the amount of waste and the search for alternative energy sources. In this study, domestic wastewater is given a second life as dilution or pretreatment medium for a concentrated waste stream, i.e., kitchen waste collected separately in Flanders. While currently domestic wastewater is treated in conventional sewage wastewater treatment plants by means of aerobic activated sludge systems, this study aims to treat the wastewater enriched by kitchen waste anaerobically with the recovery of hydrogen as an energy carrier. A direct anaerobic treatment with the recovery of energy is not feasible since the wastewater is too low in energy containing compounds and has a low temperature. Biohydrogen reactors are used to treat sewage enriched by the organic fraction of household wastes, also referred to as kitchen waste or by the waste streams from university restaurants. The biogas produced from these matrices at mesophilic condition is continuously monitored, besides hydrolysis of the solids and formation of all fermentation products. Besides the direct production of a valuable energy carrier like hydrogen, the resulting effluent which still contains a lot of soluble COD can be used for a second treatment yielding biogas and/or electricity in bioelectrochemical systems.



Copyright: © European Compost Network ECN e.V.
Quelle: Orbit 2008 (Oktober 2008)
Seiten: 7
Preis inkl. MwSt.: € 7,00
Autor: Dr. ir. Karolien Vanbroekhoven
Doga Arslan
B. Baeyens
B. Calli
Ludo Diels

Artikel weiterleiten In den Warenkorb legen Artikel kommentieren


Diese Fachartikel könnten Sie auch interessieren:

GreenSelect – Konservierung (Silierung) von krautigem Grüngut zur zeitversetzten Verwertung in Biogutvergärungsanlagen
© Witzenhausen-Institut für Abfall, Umwelt und Energie GmbH (11/2022)
Im Projekt GreenSelect, welches vom Bundesministerium für Wirtschaft und Klimaschutz im Rahmen des Programms „Energetische Biomassenutzung“ gefördert wurde, hat das Witzenhausen-Institut mit verschiedenen kommunalen Praxispartnern die separate Erfassung, Silierung und Vergärung von Grüngut in Praxisversuchen durchgeführt. Im Beitrag werden die Ergebnisse verkürzt und zusammenfassend vorgestellt. Der ausführliche Abschlussbericht inklusive einer ökonomischen und ökologischen Bewertung ist auf der Webseite des Programms „Energetische Biomassenutzung“ zu finden.

The Added Value of the Balance Method for Waste-to-Energy Operators and National Authorities
© TK Verlag - Fachverlag für Kreislaufwirtschaft (9/2016)
Different directives of the European Union may require operators of Waste to Energy WTE plants to monitor the composition of their waste feed with respect to the Content of biomass and fossil organic matter. The mass fractions of both materials are not only of relevance for the amount of fossil and thus climate relevant CO2 emissions of the plant, but also for the ratio of renewable energy generated, as biomass in wastes is considered as renewable energy source.

Infrasound Solution for Fouled SCR and the Economizer in World’s Largest Waste-to-Energy Boiler
© TK Verlag - Fachverlag für Kreislaufwirtschaft (9/2016)
Infrafone, with headquarters in Stockholm, Sweden, is using infrasound as a soot cleaning method and has plenty of experiences from various fuels and applications. The technical development has resulted in a product with much higher acoustic power than any other similar products on the market and acoustic modelling software that is unique. Infrasound cleaning increases the efficiency, the availability and the lifetime of industrial and marine boilers. In this text we start by describing the properties of infrasound and the product, while finishing by looking deeper into a couple of recent results obtained on waste to energy boilers.

Complex Approach towards the Assessment of Waste-to-Energy Plants’ Future Potential
© TK Verlag - Fachverlag für Kreislaufwirtschaft (9/2016)
There is a fierce debate ongoing about future recycling targets for municipal solid waste (MSW) at the European level. The old linear concept of waste management is being changed into a circular economy. Since the separation yield and post-recycling MSW (later on residual solid waste, RSW) production have an opposite relationship, assuming the constant production of particular components (paper, plastics etc.), lower RSW rates are also expected. This is having a negative effect on Waste-to-energy (WtE); especially in terms of its future optimum capacity in particular countries.

Initial Operating Experience with the New Polish Waste-to-Energy Plants
© TK Verlag - Fachverlag für Kreislaufwirtschaft (9/2016)
Waste-to-Energy plants are an integral part of modern municipal Waste Management Systems. Today recycling and energy recovery from waste are the only methods of dealing with municipal waste. This is demonstrated by Waste Management Systems in countries such as Germany, Sweden, the Netherlands, Belgium, Denmark and Austria, where the municipal waste management is limited solely to recycling and energy recovery from waste. The currently discussed concept of the latest circular economy package can hardly change anything in this matter. Poland, as one of the leaders among the new EU member states (since 2004), has still a lot to do within the scope of recycling and waste-to-energy.

Name:

Passwort:

 Angemeldet bleiben

Passwort vergessen?

Der ASK Wissenspool
 
Mit Klick auf die jüngste Ausgabe des Content -Partners zeigt sich das gesamte Angebot des Partners
 

Selbst Partner werden?
 
Dann interessiert Sie sicher das ASK win - win Prinzip:
 
ASK stellt kostenlos die Abwicklungs- und Marketingplattform - die Partner stellen den Content.
 
Umsätze werden im Verhältnis 30 zu 70 (70% für den Content Partner) geteilt.
 

Neu in ASK? Dann gleich registrieren und Vorteile nutzen...