Effects on the biogas and methane production ofcattle manure treated with urease inhibitor

Biomass and Bioenergy

Volume 75, April 01, 2015, Pages 75-82

 (Article)

Hagenkamp-Korth, F. , 

Ohl, S., 

Hartung, E.

 

Christian-Albrechts-University Kiel, Institute of Agricultural Engineering, Max-Eyth-Strasse 6, Kiel, Germany 

View references (54)

Abstract

Urease inhibitors are in general known as potential measure for reducing ammonia emissions in dairy and cattle housing systems. Due to the application of the urease inhibitor on the exercise areas within a housing system the inhibitor is "mixed" with cattle manure and this "mixture" remains unchanged during manure storage. In Germany, a large part of the total stored cattle manure is utilized as a substrate in biogasplants. Therefore, the aim of the current study was to test if different concentrations of urease inhibitor mixed with typical cattle slurry will have any (negative) effects on the biogas and methane yield. The Hohenheim Biogas Yield Test (HBT) was used to determine if the biogas and methane production of cattle manure is influenced by the admixture with urease inhibitor. Altogether, four urease inhibitor concentrations (0%, 0.1%, 1% und 10% of total Kjeldahl nitrogen) were tested in the HBT experiments with two different substrates, cattle manure and cellulose, as a reference, in repetitions each. The average biogas and methane production of cellulose was 740 L_N/kg_ODM and 403 L_N/kg _ODMand of cattle manure 471L_N/kg_ODM and 295 L_N/kg_ODM. Both substrates treated with urease inhibitor showed no significant change in the biogas and methane production compared to the untreated ones. The use of urease inhibitors to reduce ammonia is harmless from the view of biogas plants. © 2015 Published by Elsevier Ltd.

Author keywords

Ammonia reduction; Biogas production; Cattle; Manure; Methane production; Urease inhibitor

Indexed keywords

Engineering controlled terms: Ammonia; Biogas; Cellulose; Housing; Manures; Methane; Odor control

Ammonia reduction; Biogas production; Cattle; Methane production; Urease inhibitors

Engineering main heading: Substrates

GEOBASE Subject Index: ammonia; biogas; cellulose; emission control; enzyme activity; inhibitor; manure; methane

Regional Index: Germany

Species Index: Bos

ISSN: 09619534 CODEN: BMSBESource Type: Journal Original language: English

DOI: 10.1016/j.biombioe.2015.02.014Document Type: Article

Publisher: Elsevier Ltd