Publisher DOI: 10.1016/j.renene.2019.05.037
Title: Development of a method to produce standardised and storable inocula for biomethane potential tests – Preliminary steps
Language: English
Authors: Heerenklage, Jörn 
Rechtenbach, Dorothea 
Atamaniuk, Iryna 
Alassali, Ayah 
Raga, R. 
Koch, Konrad 
Kuchta, Kerstin 
Issue Date: Dec-2019
Source: Renewable Energy (143): 753-761 (2019-12)
Journal or Series Name: Renewable Energy 
Abstract (english): In biomethane potential (BMP) tests, different sources and origins of inocula might cause significant variations in the tests’ results, preventing from acquiring a harmonised and standardised evaluation of the different substrates. In this study, a method to produce standardised and storable inocula was elaborated. For the development of the different investigation steps a control sludge originated from a wastewater treatment plant was utilised. Freeze-drying was applied in the framework of this study as a long-term conservation method for the anaerobic inocula. In order to ensure a closed system with anaerobic conditions at all times, a test system was developed to allow accurate and representative mass-balance experiments. The test results demonstrated that inocula conservation and re-suspension in BMP tests is possible; the limit value of the expected methane yield of a positive and lyophilised reference-control, was reached. However, a lag phase of 7–10 days was obtained, possibly due to the damage of microorganisms as a consequence of the conservation process. Further investigations need to be carried out to optimise the conservation process of the produced inocula or an initial preparation phase should be considered to reduce the lag phase.
URI: http://hdl.handle.net/11420/2745
ISSN: 0960-1481
Institute: Umwelttechnik und Energiewirtschaft V-9 
Abwasserwirtschaft und Gewässerschutz B-2 
Type: (wissenschaftlicher) Artikel
Funded by: This project “Development of a method to produce standardized inocula for biomethane potential tests (No. 22013313 )” was funded by the Federal Ministry of Food and Agriculture (Germany).
Appears in Collections:Publications without fulltext

Show full item record

Page view(s)

16
Last Week
0
Last month
5
checked on Aug 19, 2019

Google ScholarTM

Check

Export

Items in TORE are protected by copyright, with all rights reserved, unless otherwise indicated.