Energy- and CO₂-reduction potentials by anaerobic treatment of wastewater and organic kitchen wastes in consideration of different climatic conditions

verfasst von

D. Weichgrebe, I. Urban, K. Friedrich

Abstract

The classical municipal wastewater treatment in Germany consists of an aerobic carbon and nitrogen elimination and mostly an anaerobic sludge treatment. Organic kitchen wastes from separate waste collection as well as yard wastes are converted mostly in composting plants to soil conditioner. with these conventional types of treatment, the energy potential in waste and wastewater is lost due to aerobic material conversion. In this article three scenarios for the treatment of municipal wastewater and waste are compared on the subject of energy efficiency and useable potential: Sc1. the classical wastewater treatment and the composting of the organic waste fraction, Sc2. the anaerobic treatment of wastewater combined with deammonification and the digestion of the organic waste fraction, and Sc3. a mutual anaerobic treatment of wastewater and waste as co-digestion with deammonification. The calculation of energy and CO₂-balance considers different climatic conditions. in case of using anaerobic treatment, not only the energy balance will be positive, also the CO₂-balance is improved by the substitution of fossil fuels with generated biogas.

Organisationseinheit(en)

Institut für Siedlungswasserwirtschaft und Abfalltechnik

Typ

Artikel

Journal

Water science and technology

Band

58

Seiten

379-384

Anzahl der Seiten

6

ISSN

0273-1223

Publikationsdatum

06.10.2008

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Environmental engineering, Gewässerkunde und -technologie

Ziele für nachhaltige Entwicklung

SDG 7 – Erschwingliche und saubere Energie, SDG 11 – Nachhaltige Städte und Gemeinschaften

Elektronische Version(en)

https://doi.org/10.2166/wst.2008.363 (Zugang: Unbekannt)