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Anaerobic digestion of specified risk materials with cattle manure for biogas production.
Bioresour Technol. 2010 Aug; 101(15):5780-5.BT

Abstract

Biogas production from anaerobic digestion (AD) of specified risk materials (SRM) co-digested with cattle manure was assessed in a 3 x 2 factorial design. SRM replaced manure at 0 (control), 10% or 25% (w/w) as the substrate fed to six 2-L biodigesters maintained at 37 degrees C or 55 degrees C. Digesters were fed substrate (30 g L(-1) total volatile solids) at 6-d intervals for 90 d, with a retention time of 30 d. Keratin (<20mg) was added to each digester to model the degradation of beta-sheet rich proteins. Methane production was measured daily, and effluent was collected at feeding to monitor SRM degradation using real-time PCR analysis of bovine-specific DNA fragments. Compared with control, methane production increased by 83% or 161% (P<0.05) with 10% or 25% SRM at 37 degrees C, and by 45% and 87%, respectively, at 55 degrees C (P<0.05). Bovine DNA degradation over 6d was higher (P<0.05) at 37 degrees C as compared to 55 degrees C. Dry matter degradation of keratin at 37 degrees C decreased with increasing SRM concentration (P<0.05), whereas at 55 degrees C no difference between treatments was observed (P>0.05). Inclusion of SRM increases the production of methane during the anaerobic digestion of manure and may offer a means of deriving economic value from the disposal of SRM.

Authors+Show Affiliations

Agriculture and Agri-Food Canada (AAFC), Lethbridge Research Centre, P.O. Box 3000, Lethbridge, Alberta, Canada.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20335029

Citation

Gilroyed, Brandon H., et al. "Anaerobic Digestion of Specified Risk Materials With Cattle Manure for Biogas Production." Bioresource Technology, vol. 101, no. 15, 2010, pp. 5780-5.
Gilroyed BH, Reuter T, Chu A, et al. Anaerobic digestion of specified risk materials with cattle manure for biogas production. Bioresour Technol. 2010;101(15):5780-5.
Gilroyed, B. H., Reuter, T., Chu, A., Hao, X., Xu, W., & McAllister, T. A. (2010). Anaerobic digestion of specified risk materials with cattle manure for biogas production. Bioresource Technology, 101(15), 5780-5. https://doi.org/10.1016/j.biortech.2010.02.077
Gilroyed BH, et al. Anaerobic Digestion of Specified Risk Materials With Cattle Manure for Biogas Production. Bioresour Technol. 2010;101(15):5780-5. PubMed PMID: 20335029.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Anaerobic digestion of specified risk materials with cattle manure for biogas production. AU - Gilroyed,Brandon H, AU - Reuter,Tim, AU - Chu,Angus, AU - Hao,Xiying, AU - Xu,Weiping, AU - McAllister,Tim A, Y1 - 2010/03/23/ PY - 2009/09/14/received PY - 2010/01/27/revised PY - 2010/02/21/accepted PY - 2010/3/26/entrez PY - 2010/3/26/pubmed PY - 2010/7/28/medline SP - 5780 EP - 5 JF - Bioresource technology JO - Bioresour Technol VL - 101 IS - 15 N2 - Biogas production from anaerobic digestion (AD) of specified risk materials (SRM) co-digested with cattle manure was assessed in a 3 x 2 factorial design. SRM replaced manure at 0 (control), 10% or 25% (w/w) as the substrate fed to six 2-L biodigesters maintained at 37 degrees C or 55 degrees C. Digesters were fed substrate (30 g L(-1) total volatile solids) at 6-d intervals for 90 d, with a retention time of 30 d. Keratin (<20mg) was added to each digester to model the degradation of beta-sheet rich proteins. Methane production was measured daily, and effluent was collected at feeding to monitor SRM degradation using real-time PCR analysis of bovine-specific DNA fragments. Compared with control, methane production increased by 83% or 161% (P<0.05) with 10% or 25% SRM at 37 degrees C, and by 45% and 87%, respectively, at 55 degrees C (P<0.05). Bovine DNA degradation over 6d was higher (P<0.05) at 37 degrees C as compared to 55 degrees C. Dry matter degradation of keratin at 37 degrees C decreased with increasing SRM concentration (P<0.05), whereas at 55 degrees C no difference between treatments was observed (P>0.05). Inclusion of SRM increases the production of methane during the anaerobic digestion of manure and may offer a means of deriving economic value from the disposal of SRM. SN - 1873-2976 UR - https://www.unboundmedicine.com/medline/citation/20335029/Anaerobic_digestion_of_specified_risk_materials_with_cattle_manure_for_biogas_production_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0960-8524(10)00388-3 DB - PRIME DP - Unbound Medicine ER -