PMID- 25776915
OWN - NLM
STAT- MEDLINE
DCOM- 20160127
LR  - 20150430
IS  - 1879-2448 (Electronic)
IS  - 0043-1354 (Linking)
VI  - 76
DP  - 2015 Jun 1
TI  - High rate manure supernatant digestion.
PG  - 1-9
LID - S0043-1354(15)00124-4 [pii]
LID - 10.1016/j.watres.2015.02.051 [doi]
AB  - The study shows that high rate anaerobic digestion may be an efficient way to 
      obtain sustainable energy recovery from slurries such as pig manure. High process 
      capacity and robustness to 5% daily load increases are observed in the 370 mL 
      sludge bed AD reactors investigated. The supernatant from partly settled, stored 
      pig manure was fed at rates giving hydraulic retention times, HRT, gradually 
      decreased from 42 to 1.7 h imposing a maximum organic load of 400 g COD L(-1) 
      reactor d(-1). The reactors reached a biogas production rate of 97 g COD L(-1) 
      reactor d(-1) at the highest load at which process stress signs were apparent. 
      The yield was  approximately 0.47 g COD methane g(-1) CODT feed at HRT above 17 h, gradually 
      decreasing to 0.24 at the lowest HRT (0.166 NL CH4 g(-1) CODT feed decreasing to 
      0.086). Reactor pH was innately stable at 8.0 +/- 0.1 at all HRTs with alkalinity 
      between 9 and 11 g L(-1). The first stress symptom occurred as reduced methane 
      yield when HRT dropped below 17 h. When HRT dropped below 4 h the propionate 
      removal stopped. The yield from acetate removal was constant at 0.17 g COD 
      acetate removed per g CODT substrate. This robust methanogenesis implies that pig 
      manure supernatant, and probably other similar slurries, can be digested for 
      methane production in compact and effective sludge bed reactors. Denaturing 
      gradient gel electrophoresis (DGGE) analysis indicated a relatively fast 
      adaptation of the microbial communities to manure and implies that non-adapted 
      granular sludge can be used to start such sludge bed bioreactors.
CI  - Copyright (c) 2015 The Authors. Published by Elsevier Ltd.. All rights reserved.
FAU - Bergland, Wenche Hennie
AU  - Bergland WH
AD  - Telemark University College, Kjolnes Ring 56, 3918 Porsgrunn, Norway. Electronic 
      address: wenche.bergland@hit.no.
FAU - Dinamarca, Carlos
AU  - Dinamarca C
AD  - Telemark University College, Kjolnes Ring 56, 3918 Porsgrunn, Norway.
FAU - Toradzadegan, Mehrdad
AU  - Toradzadegan M
AD  - Telemark University College, Kjolnes Ring 56, 3918 Porsgrunn, Norway.
FAU - Nordgard, Anna Synnove Rostad
AU  - Nordgard AS
AD  - Norwegian University of Science and Technology, Department of Biotechnology, Sem 
      Saelands vei 6/8, 7491 Trondheim, Norway.
FAU - Bakke, Ingrid
AU  - Bakke I
AD  - Norwegian University of Science and Technology, Department of Biotechnology, Sem 
      Saelands vei 6/8, 7491 Trondheim, Norway.
FAU - Bakke, Rune
AU  - Bakke R
AD  - Telemark University College, Kjolnes Ring 56, 3918 Porsgrunn, Norway.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20150304
PL  - England
TA  - Water Res
JT  - Water research
JID - 0105072
RN  - 0 (Biofuels)
RN  - 0 (Manure)
RN  - 0 (Sewage)
RN  - OP0UW79H66 (Methane)
SB  - IM
MH  - Anaerobiosis
MH  - Animals
MH  - Biofuels/microbiology
MH  - Biological Oxygen Demand Analysis
MH  - *Bioreactors
MH  - Denaturing Gradient Gel Electrophoresis
MH  - Manure/*microbiology
MH  - Methane/metabolism
MH  - Sewage/*chemistry
MH  - Swine
MH  - Waste Disposal, Fluid/*methods
OTO - NOTNLM
OT  - AD stability
OT  - Energy from slurries
OT  - High organic load
OT  - Microbial communities
OT  - Pig manure supernatant
EDAT- 2015/03/18 06:00
MHDA- 2016/01/28 06:00
CRDT- 2015/03/18 06:00
PHST- 2014/12/03 00:00 [received]
PHST- 2015/02/18 00:00 [revised]
PHST- 2015/02/22 00:00 [accepted]
PHST- 2015/03/18 06:00 [entrez]
PHST- 2015/03/18 06:00 [pubmed]
PHST- 2016/01/28 06:00 [medline]
AID - S0043-1354(15)00124-4 [pii]
AID - 10.1016/j.watres.2015.02.051 [doi]
PST - ppublish
SO  - Water Res. 2015 Jun 1;76:1-9. doi: 10.1016/j.watres.2015.02.051. Epub 2015 Mar 4.