Discussing on Biochemical Pathway of Anaerobic Fermentation for Hydrogen and Methane Producition by Eupatorium Adenophorum Spreng Based on Biochemical Materials

2011 ◽  
Vol 322 ◽  
pp. 398-403
Author(s):  
Fang Yin ◽  
Wu Di Zhang ◽  
Shi Qing Liu ◽  
Jian Chang Li ◽  
Rui Xu ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Methane Production ◽  
Theoretical Basis ◽  
Anaerobic Fermentation ◽  
Biochemical Pathway ◽  
Eupatorium Adenophorum ◽  
The Future ◽  
Metabolic Mechanism ◽  
Eupatorium Adenophorum Spreng

The biochemical pathway of fermentation for methane and hydrogen production by Eupatorium adenophorum Spreng （E. adenophorum） is different from only methane production, only hydrogen production, or methane production followed by hydrogen production. This paper is focused on biochemical metabolic mechanism of relationship between methane and hydrogen production, in order that it provide theoretical basis for utilization of biomass anaerobic fermentation in the future.

The preparation and application of crude cellulase for cellulose-hydrogen production by anaerobic fermentation

2010 ◽  
Vol 35 (2) ◽  
pp. 459-468 ◽  
Author(s):  
Yi-Ping Guo ◽  
Shao-Qun Fan ◽  
Yao-Ting Fan ◽  
Chun-Mei Pan ◽  
Hong-Wei Hou
Keyword(s):  
Hydrogen Production ◽  
Anaerobic Fermentation

scholarly journals Effect of picloram herbicide on physiological responses of Eupatorium adenophorum Spreng

2014 ◽  
Vol 74 (4) ◽  
pp. 438-444 ◽  
Author(s):  
Xiaowen Liu ◽  
Chengmei Qi ◽  
Zongcheng Wang ◽  
Yuan Li ◽  
Qiuxia Wang ◽  
...  
Keyword(s):  
Physiological Responses ◽  
Eupatorium Adenophorum ◽  
Eupatorium Adenophorum Spreng

Online estimation of VFA, alkalinity and bicarbonate concentrations by electrical conductivity measurement during anaerobic fermentation

2012 ◽  
Vol 65 (7) ◽  
pp. 1281-1289 ◽  
Author(s):  
Cesar-Arturo Aceves-Lara ◽  
Eric Latrille ◽  
T. Conte ◽  
Jean-Philippe Steyer
Keyword(s):  
Electrical Conductivity ◽  
Hydrogen Production ◽  
Linear Regression ◽  
Regression Model ◽  
Linear Regression Model ◽  
Anaerobic Fermentation ◽  
Simple Linear Regression ◽  
Conductivity Measurements ◽  
Bicarbonate Concentration ◽  
On Line

This paper describes the use of electrical conductivity for measurement of volatile fatty acids (VFA), alkalinity and bicarbonate concentrations, during the anaerobic fermentation process. Two anaerobic continuous processes were studied: the first was a laboratory reactor for hydrogen production from molasses and the second was a pilot process for anaerobic digestion (AD) of vinasses producing methane. In the hydrogen production process, the total VFA concentration, but not bicarbonate concentration, was well estimated from the on-line electrical conductivity measurements with a simple linear regression model. In the methane production process, the bicarbonate concentration and the VFA concentration were well estimated from the simultaneous on-line measurements of pH and electrical conductivity by means of non-linear regression with neural network models. Moreover, the total alkalinity concentration was well estimated from electrical conductivity measurements with a simple linear regression model. This demonstrates the use of electrical conductivity for monitoring the AD processes.

Sludge accumulation and methanogenic activity in an anaerobic lagoon

2000 ◽  
Vol 42 (10-11) ◽  
pp. 247-255 ◽  
Author(s):  
J. Paing ◽  
B. Picot ◽  
J. P. Sambuco ◽  
A. Rambaud
Keyword(s):  
Anaerobic Digestion ◽  
Methane Production ◽  
Anaerobic Degradation ◽  
Volatile Fatty Acids ◽  
Anaerobic Fermentation ◽  
Methanogenic Activity ◽  
Start Up ◽  
Anaerobic Lagoon ◽  
Methane Production Rate ◽  
Sludge Accumulation

Sludge accumulation and the characteristics of anaerobic digestion in sludge had been investigated in a primary anaerobic lagoon. Methanogenic potential of sludge was evaluated by an anaerobic digestion test which measured the methane production rate. Sludge was sampled at several points in the lagoon to determine spatial variations and with a monthly frequency from the start-up of the lagoon to observe the development of anaerobic degradation. Maximum amounts of sludge accumulated near the inlet. The mean methane production of sludge was 2.9 ml gVS–1 d–1. Sludge near the outlet presented a greater methanogenic activity and a lesser concentration of volatile fatty acids than near the inlet. The different stages of anaerobic degradation were spatially separated, acidogenesis near the inlet and methanogenesis near the outlet. This staged distribution seemed to increase efficiency of anaerobic fermentation compared with septic tanks. Methane release at the surface of the lagoon was estimated to be very heterogeneous with a mean of 25 l m–2 d–1. The development of performance and sludge characteristics showed the rapid beginning of methanogenesis, three months after the start-up of the anaerobic lagoon. Considering the volume of accumulated sludge, it could however be expected that methanogenic activity would further increase.

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