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E-raamat: Performance Assessment and Enrichment of Anaerobic Methane Oxidizing Microbial Communities from Marine Sediments in Bioreactors [Taylor & Francis e-raamat]

(UNESCO-IHE Institute for Water Education, Delft, The Netherlands)
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Performance Assessment and Enrichment of Anaerobic Methane Oxidizing Microbial Communities from Marine Sediments in BioreactorsSuurem pilt
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Raamatu kodulehekülg: https://www.taylorfrancis.com/books/9780429448027
Anaerobic oxidation of methane (AOM) coupled to sulfate reduction (AOM-SR) is a biological process mediated by anaerobic methanotrophs (ANME) and sulfate reducing bacteria. It has scientifi c and societal relevance in regulating the global carbon cycle and biotechnological application for treating sulfate-rich wastewater. This research aimed to enhance the recent knowledge on ANME distribution and its enrichment in different bioreactor confi gurations, i.e. membrane bioreactor (MBR), biotrickling fi lter (BTF) and high pressure bioreactor (HPB). Marine sediment from Ginsburg mud volcano, Gulf of Cadiz was used as inoculum in the BTF and MBR. The BTF operation showed the enrichment of ANME in the biofi lm, especially ANME-1 (40%) and ANME-2 (10%). Whereas, the dominancy of ANME-2 and Desulfosarcina aggregates was observed in the MBR. Moreover, HPB study was performed by using highly enriched ANME-2 community from Captain Arutyunov mud volcano. During the study of HPB at different temperature and pressure conditions, the incubation at 10 MPa pressure and 15C was observed to be the most suitable condition for the studied AOM-SR community. Furthermore, AOM-SR activity in the coastal sediments from marine Lake Grevelingen (the Netherlands) was explored and the microbial community was characterised which was dominated by ANME-3 among known ANME types.
Acknowledgements xi
Summary xiii
Samenvatting xv
Somario xvii
Resume xix
Chapter 1 General Introduction and Thesis Outline
1(10)
1.1 General introduction and problem statement
2(2)
1.2 Objectives and scope of the study
4(1)
1.3 Outlines of this thesis
5(1)
1.4 References
6(5)
Chapter 2 Physiology and Distribution of Anaerobic Oxidation of Methane by Archaeal Methanotrophs
11(72)
2.1 Introduction
12(3)
2.2 Microbiology of anaerobic methane oxidation
15(8)
2.3 Physiology of ANME
23(6)
2.4 Drivers for distribution of ANME in natural habitats
29(11)
2.5 Ex situ enrichment of ANME
40(9)
2.6 Approaches for AOM and ANME studies
49(8)
2.7 Conclusions and outlook
57(1)
2.8 References
58(25)
Chapter 3 Microbial Sulfate Reducing Activities in Anoxic Sediment from Marine Lake Grevelingen
83(24)
Abstract
84(1)
3.1 Introduction
84(2)
3.2 Materials and Methods
86(4)
3.3 Results
90(7)
3.4 Discussion
97(4)
3.5 Conclusions
101(1)
3.6 References
101(6)
Chapter 4 Anaerobic Methane Oxidizing Microbial Community in a Coastal Marine Sediment Anaerobic Methanotrophy Dominated by ANME-3
107(38)
4.1 Introduction
108(3)
4.2 Materials and methods
111(5)
4.3 Results
116(11)
4.4 Discussion
127(7)
4.5 Conclusions
134(1)
4.6 References
134(11)
Chapter 5 Enrichment of Anaerobic Methane Oxidizing ANME-1 from Ginsburg Mud Volcano (Gulf of Cadiz) Sediment in a Biotrickling Filte
145(32)
5.1 Introduction
146(2)
5.2 Materials and methods
148(7)
5.3 Results
155(8)
5.4 Discussion
163(4)
5.5 Conclusions
167(1)
5.6 References
168(9)
Chapter 6 Enrichment of ANME-2 Dominated Anaerobic Oxidation of Methane Coupled to Sulfate Reduction Consortia from Cold Seep Sediment (Ginsburg Mud Volcano, Guif of Cadiz) in a Membrane Bioreactor
177(30)
6.1 Introduction
178(3)
6.2 Materials and Methods
181(7)
6.3 Results
188(6)
6.4 Discussion
194(4)
6.5 Conclusions
198(1)
6.6 References
198(9)
Chapter 7 Response of Highly Enriched ANME-2a Community to the Different Pressure and Temperature Conditions
207(24)
7.1 Introduction
208(2)
7.2 Materials and methods
210(3)
7.3 Results
213(7)
7.4 Discussion
220(3)
7.5 Conclusions
223(1)
7.6 References
224(7)
Chapter 8 General Discussion
231
8.1 Introduction
232(1)
8.2 Anaerobic oxidation of methane in coastal sediment
232(4)
8.3 Anaerobic oxidation of methane in bioreactors
236
Dr. Susma Bhattarai Gautam is from Nepal. She obtained her bachelor (BSc) and MSc in Environmental Science with the specialization in water resource management from Tribuvan University, Nepal. She obtained her masters (MSc) in Environmental Science from UNESCO-IHE, Institute of Water Education, Delft, the Netherlands, during which she worked on a research project from EAWAG, Switzerland which characterized the microbial community of Lake Kivu sediment, East Africa. Susma did her PhD in Environmental Science and Technology in Erasmus Mundus Joint Doctorate Programme Environmental Technologies for Contaminated Solids, Soils and Sediments (ETeCoS3). Her research was mainly focused on the study of anaerobic oxidation of methane, enrichment of anaerobic methanotrophic communities which perform anaerobic oxidation of methane in bioreactors and understand their ecophysiology. Susma's main research interest are environmental biotechnology, anaerobic processes and molecular biology.
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