PMID- 22613898
OWN - NLM
STAT- MEDLINE
DCOM- 20121010
LR  - 20120612
IS  - 1873-2976 (Electronic)
IS  - 0960-8524 (Linking)
VI  - 117
DP  - 2012 Aug
TI  - Effect of earthworms on the performance and microbial communities of excess 
      sludge treatment process in vermifilter.
PG  - 214-21
LID - 10.1016/j.biortech.2012.04.096 [doi]
AB  - Previous studies have shown that the stabilization of excess sludge by 
      vermifiltration can be improved significantly through the use of earthworms. To 
      investigate the effect of earthworms on enhancing sludge stabilization during the 
      vermifiltration process, a vermifilter (VF) with earthworms and a conventional 
      biofilter (BF) without earthworms were compared. The sludge reduction capability 
      of the VF was  approximately 85% higher than that of the BF. Specifically, elemental analysis 
      indicated that earthworms enhanced the stabilization of organic matter. 
      Furthermore, earthworm predation strongly regulated microbial biomass while 
      improving microbial activity. Denaturing gradient gel electrophoresis (DGGE) 
      analysis showed that the most abundant microbes in the VF biofilms and earthworm 
      casts were Flavobacterium, Myroides, Sphingobacterium, and Myxococcales, all of 
      which are known to be highly effective at degrading organic matter. These results 
      indicate that earthworms can improve the stabilization of excess sludge during 
      vermifiltration, and reveal the processes by which this is achieved.
CI  - Copyright (c) 2012 Elsevier Ltd. All rights reserved.
FAU - Liu, Jing
AU  - Liu J
AD  - State Key Laboratory of Pollution Control and Resources Reuse, College of 
      Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
FAU - Lu, Zhibo
AU  - Lu Z
FAU - Yang, Jian
AU  - Yang J
FAU - Xing, Meiyan
AU  - Xing M
FAU - Yu, Fen
AU  - Yu F
FAU - Guo, Meiting
AU  - Guo M
LA  - eng
SI  - GENBANK/HQ916912
SI  - GENBANK/HQ916913
SI  - GENBANK/HQ916914
SI  - GENBANK/HQ916915
SI  - GENBANK/HQ916916
SI  - GENBANK/HQ916917
SI  - GENBANK/HQ916918
SI  - GENBANK/HQ916919
SI  - GENBANK/HQ916920
SI  - GENBANK/HQ916921
SI  - GENBANK/HQ916922
SI  - GENBANK/HQ916923
SI  - GENBANK/HQ916924
SI  - GENBANK/HQ916925
SI  - GENBANK/HQ916926
SI  - GENBANK/HQ916927
SI  - GENBANK/HQ916928
SI  - GENBANK/HQ916929
SI  - GENBANK/HQ916930
SI  - GENBANK/HQ916931
SI  - GENBANK/HQ916932
SI  - GENBANK/HQ916933
SI  - GENBANK/HQ916934
SI  - GENBANK/HQ916935
SI  - GENBANK/HQ916936
SI  - GENBANK/HQ916937
SI  - GENBANK/HQ916938
SI  - GENBANK/HQ916939
SI  - GENBANK/HQ916940
SI  - GENBANK/HQ916941
SI  - GENBANK/HQ916942
SI  - GENBANK/HQ916943
SI  - GENBANK/HQ916944
SI  - GENBANK/HQ916945
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20120503
PL  - England
TA  - Bioresour Technol
JT  - Bioresource technology
JID - 9889523
RN  - 0 (Elements)
RN  - 0 (RNA, Ribosomal, 16S)
RN  - 0 (Sewage)
RN  - EC 1.- (Oxidoreductases)
SB  - IM
MH  - Animals
MH  - Base Sequence
MH  - Biodegradation, Environmental
MH  - Biofilms
MH  - Cluster Analysis
MH  - Denaturing Gradient Gel Electrophoresis
MH  - Elements
MH  - Filtration/*instrumentation
MH  - Molecular Sequence Data
MH  - Oligochaeta/*metabolism
MH  - Oxidoreductases/metabolism
MH  - Phylogeny
MH  - RNA, Ribosomal, 16S/genetics
MH  - Sewage/*microbiology
MH  - Water Purification/*instrumentation/*methods
EDAT- 2012/05/23 06:00
MHDA- 2012/10/12 06:00
CRDT- 2012/05/23 06:00
PHST- 2012/01/20 00:00 [received]
PHST- 2012/04/24 00:00 [revised]
PHST- 2012/04/24 00:00 [accepted]
PHST- 2012/05/23 06:00 [entrez]
PHST- 2012/05/23 06:00 [pubmed]
PHST- 2012/10/12 06:00 [medline]
AID - S0960-8524(12)00720-1 [pii]
AID - 10.1016/j.biortech.2012.04.096 [doi]
PST - ppublish
SO  - Bioresour Technol. 2012 Aug;117:214-21. doi: 10.1016/j.biortech.2012.04.096. Epub 
      2012 May 3.