Methanogenic Activity and Growth at Low Temperature Anaerobic Wastewater Treatment (4, 15 °C) Using Cold Adapted Inocula

2017 ◽  
pp. 360-367
Author(s):  
E. Petropoulos ◽  
J. Dolfing ◽  
T. P. Curtis
Keyword(s):  
Wastewater Treatment ◽  
Low Temperature ◽  
Methanogenic Activity ◽  
Cold Adapted ◽  
Anaerobic Wastewater Treatment

High rate domestic wastewater treatment at 15 °C using anaerobic reactors inoculated with cold-adapted sediments/soils – shaping robust methanogenic communities

2019 ◽  
Vol 5 (1) ◽  
pp. 70-82 ◽  
Author(s):  
Evangelos Petropoulos ◽  
Yongjie Yu ◽  
Shamas Tabraiz ◽  
Aminu Yakubu ◽  
Thomas P. Curtis ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Low Temperature ◽  
Domestic Wastewater ◽  
High Rate ◽  
Cold Adapted ◽  
Anaerobic Reactors ◽  
Domestic Wastewater Treatment

To choose the reactor format in which to employ a low temperature adapted seed for wastewater treatment, we compared a UASB and an AnMBRUASB (UF)reactor at low HRT and temperature (15 °C).

Biotechnological perspectives of microorganisms isolated from the Polar Regions

2018 ◽  
Vol 39 (3) ◽  
pp. 137
Author(s):  
Viktoria Shcherbakova ◽  
Olga Troshina
Keyword(s):  
Wastewater Treatment ◽  
Low Temperature ◽  
Liquid Water ◽  
Polar Regions ◽  
Biotechnological Applications ◽  
Cold Adapted ◽  
Culture Independent ◽  
Biotechnological Processes ◽  
Improved Methods ◽  
Culture Dependent

Polar permanently frozen grounds cover more than 20% of the earth's surface, and about 60% of the Russian territories are permafrost. In the permafrost environments, the combination of low temperature and poor availability of liquid water make these habitats extremely inhospitable for life. To date, both culture-dependent and culture-independent methods have shown that permafrost is a habitat for microorganisms of all three domains: Bacteria, Archaea and Eukarya. An overview of applying psychrophilic and psychrotolerant bacteria and archaea isolated from Arctic and Antarctic permafrost ecosystems in biotechnological processes of wastewater treatment, production of cold-adapted enzymes, etc. is discussed here. The study of existing collections of microorganisms isolated from permanently cold habitats, improved methods of sampling and enrichment will increase the potential biotechnological applications of permafrost bacteria and archaea producing unique biomolecules.

Effect of temperature on denitrifying methanotrophic activity of ‘Candidatus Methylomirabilis oxyfera’

2014 ◽  
Vol 70 (10) ◽  
pp. 1683-1689 ◽  
Author(s):  
Christel Kampman ◽  
Laura Piai ◽  
Tim L. G. Hendrickx ◽  
Hardy Temmink ◽  
Grietje Zeeman ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Low Temperature ◽  
Effect Of Temperature ◽  
Methanotrophic Bacteria ◽  
Biomass Growth ◽  
Optimum Temperature ◽  
Short Term ◽  
Anaerobic Wastewater Treatment

The activity of denitrifying methanotrophic bacteria at 11–30 °C was assessed in short-term experiments. The aim was to determine the feasibility of applying denitrifying methanotrophic bacteria in low-temperature anaerobic wastewater treatment. This study showed that biomass enriched at 21 °C had an optimum temperature of 20–25 °C and that activity dropped as temperature was increased to 30 °C. Biomass enriched at 30 °C had an optimum temperature of 25–30 °C. These results indicated that biomass from low-temperature inocula adjusted to the enrichment temperature and that low-temperature enrichment is suitable for applications in low-temperature wastewater treatment. Biomass growth at ≤20 °C still needs to be studied.

New Low-Temperature Applications of Anaerobic Wastewater Treatment

2006 ◽  
Vol 41 (5) ◽  
pp. 881-895 ◽  
Author(s):  
GAVIN COLLINS ◽  
SHARON MCHUGH ◽  
SEAN CONNAUGHTON ◽  
ANNE-MARIE ENRIGHT ◽  
AILEEN KEARNEY ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Low Temperature ◽  
Anaerobic Wastewater Treatment ◽  
Temperature Applications

Microbial community dynamics associated with biomass granulation in low-temperature (15°C) anaerobic wastewater treatment bioreactors

2010 ◽  
Vol 101 (16) ◽  
pp. 6336-6344 ◽  
Author(s):  
Joe O’Reilly ◽  
Changsoo Lee ◽  
Fabio Chinalia ◽  
Gavin Collins ◽  
Thérèse Mahony ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Microbial Community ◽  
Low Temperature ◽  
Community Dynamics ◽  
Anaerobic Wastewater Treatment ◽  
Microbial Community Dynamics

Cultivation of low-temperature (15°C), anaerobic, wastewater treatment granules

2009 ◽  
Vol 49 (4) ◽  
pp. 421-426 ◽  
Author(s):  
J. O’Reilly ◽  
F.A. Chinalia ◽  
T. Mahony ◽  
G. Collins ◽  
J. Wu ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Low Temperature ◽  
Anaerobic Wastewater Treatment

Influence of feedstock and bleaching technologies on methanogenic toxicity of kraft mill wastewater

2003 ◽  
Vol 48 (6) ◽  
pp. 149-155 ◽  
Author(s):  
G. Vidal ◽  
M.C. Diez
Keyword(s):  
Wastewater Treatment ◽  
Direct Relationship ◽  
Inhibitory Concentration ◽  
Methanogenic Bacteria ◽  
High Toxicity ◽  
Methanogenic Activity ◽  
Anaerobic Wastewater Treatment ◽  
Elemental Chlorine ◽  
Different Types ◽  
Kraft Mill

Chlorine-bleached effluent is problematic for anaerobic wastewater treatment due to its high toxicity against methanogenic bacteria. To date, alternative bleaching processes are being introduced, such as elemental chlorine-free (ECF) and total chlorine-free (TCF). The purpose of this study was to investigate the influence of bleaching technologies and different types of feedstock on methanogenic activity. In order to compare the toxicity of the different bleaching sequences per unit of COD, the 50%-inhibitory concentration (50% IC) for methanogenic bacteria of the different bleaching effluents were compared. The results show that there is no direct relationship between the effluentÕs methanogenic toxicity and the bleaching sequences. Methanogenic toxicity ranged from 0.6 to 2.4 g COD/L.

Determination and localisation of in situ substrate uptake by anaerobic wastewater treatment granular biofilms

2007 ◽  
Vol 55 (8-9) ◽  
pp. 369-376 ◽  
Author(s):  
G. Collins ◽  
T. Mahony ◽  
A.-M. Enright ◽  
A. Gieseke ◽  
D. de Beer ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
In Situ Hybridisation ◽  
Substrate Uptake ◽  
Methanogenic Activity ◽  
Anaerobic Wastewater Treatment ◽  
Complementary Approach ◽  
Incubation Experiments ◽  
Testing And Measurement

Radiotracer incubation experiments and beta microimaging, along with fluorescent in situ hybridisation (FISH), are proposed as a complementary approach to specific methanogenic activity testing and measurement of in vitro substrate utilisation rates to understand better the ecophysiology of anaerobic granular biofilms from wastewater treatment reactors.

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