Prediction of hydrogen sulphide production during anaerobic digestion of organic substrates

2012 ◽  
Vol 121 ◽  
pp. 419-424 ◽  
Author(s):  
Pascal Peu ◽  
Sylvie Picard ◽  
Arnaud Diara ◽  
Romain Girault ◽  
Fabrice Béline ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Hydrogen Sulphide ◽  
Organic Substrates ◽  
Sulphide Production

Two-stage anaerobic digestion for reduced hydrogen sulphide production

2015 ◽  
Vol 91 (4) ◽  
pp. 1055-1062 ◽  
Author(s):  
Jan Moestedt ◽  
Erik Nordell ◽  
Sara Hallin ◽  
Anna Schnürer
Keyword(s):  
Anaerobic Digestion ◽  
Hydrogen Sulphide ◽  
Two Stage ◽  
Sulphide Production

scholarly journals Biochemical Methane Potential of Cork Boiling Wastewater at Different Inoculum to Substrate Ratios

2021 ◽  
Vol 11 (7) ◽  
pp. 3064
Author(s):  
Roberta Mota-Panizio ◽  
Manuel Jesús Hermoso-Orzáez ◽  
Luis Carmo-Calado ◽  
Gonçalo Lourinho ◽  
Paulo Sérgio Duque de Brito
Keyword(s):  
Anaerobic Digestion ◽  
Biogas Production ◽  
Treatment Plant ◽  
Organic Substrates ◽  
Biochemical Methane Potential ◽  
Volatile Solids ◽  
Working Volume ◽  
Methane Potential ◽  
Bmp Test ◽  
Cork Industry

The present study evaluates the digestion of cork boiling wastewater (CBW) through a biochemical methane potential (BMP) test. BMP assays were carried out with a working volume of 600 mL at a constant mesophilic temperature (35 °C). The experiment bottles contained CBW and inoculum (digested sludge from a wastewater treatment plant (WWTP)), with a ratio of inoculum/substrate (Ino/CBW) of 1:1 and 2:1 on the basis of volatile solids (VSs); the codigestion with food waste (FW) had a ratio of 2/0.7:0.3 (Ino/CBW:FW) and the codigestion with cow manure (CM) had a ratio of 2/0.5:0.5 (Ino/CBW:CM). Biogas and methane production was proportional to the inoculum substrate ratio (ISR) used. BMP tests have proved to be valuable for inferring the adequacy of anaerobic digestion to treat wastewater from the cork industry. The results indicate that the biomethane potential of CBWs for Ino/CBW ratios 1:1 and 2:1 is very low compared to other organic substrates. For the codigestion tests, the test with the Ino/CBW:CM ratio of 2/0.7:0.3 showed better biomethane yields, being in the expected values. This demonstrated that it is possible to perform the anaerobic digestion (AD) of CBW using a cosubstrate to increase biogas production and biomethane and to improve the quality of the final digestate.

Anaerobic digestion of solid organic substrates in batch mode: An overview relating to methane yields and experimental procedures

2012 ◽  
Vol 16 (1) ◽  
pp. 861-877 ◽  
Author(s):  
F. Raposo ◽  
M.A. De la Rubia ◽  
V. Fernández-Cegrí ◽  
R. Borja
Keyword(s):  
Anaerobic Digestion ◽  
Organic Substrates ◽  
Batch Mode

Hydrogen sulphide management in anaerobic digestion: A critical review on input control, process regulation, and post-treatment

2021 ◽  
pp. 126634
Author(s):  
Hang P. Vu ◽  
Luong N. Nguyen ◽  
Qilin Wang ◽  
Hao H. Ngo ◽  
Qiang Liu ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Hydrogen Sulphide ◽  
Critical Review ◽  
Control Process ◽  
Post Treatment ◽  
Input Control

Potential of anaerobic digestion of complex waste(water)

2001 ◽  
Vol 44 (8) ◽  
pp. 115-122 ◽  
Author(s):  
G. Zeeman ◽  
W. Sanders
Keyword(s):  
Waste Water ◽  
Anaerobic Digestion ◽  
Order Relation ◽  
Organic Substrates ◽  
Reactor Technology ◽  
Rate Limiting Step ◽  
Treatment Technologies ◽  
Transport Complex ◽  
Rate Limiting ◽  
Hydrolysis Of

Although they differ greatly in origin complex waste(water)s mainly consist of proteins, lipids, carbohydrates and sometimes lignin in addition. Hydrolysis is the first and generally rate-limiting step in the process of anaerobic digestion of particulate organic substrates. Hydrolysis of particulate polymers can be described by Surface Based Kinetics, but for use in practice the empirical first order relation is advised. Unlike the hydrolysis of protein and carbohydrate, lipid hydrolysis is hardly occurring in the absence of methanogenesis. The latter is probably a physical rather than a biological process and affects the choice for either a one- or a two-step (phase) anaerobic reactor. In the chain of collection and transport, complex wastes often become complex wastewaters simply because of dilution. Dilution not only changes the reactor technology to be applied but also complicates the post-treatment and possibilities for resource recovery. Combining concentrated with diluted waste streams will almost always end up in much more complicated treatment technologies.

scholarly journals Impact of Pharmacological Inhibition of Hydrogen Sulphide Production in the SOD1G93A-ALS Mouse Model

2019 ◽  
Vol 20 (10) ◽  
pp. 2550 ◽  
Author(s):  
Alida Spalloni ◽  
Viviana Greco ◽  
Giulia Ciriminna ◽  
Victor Corasolla Carregari ◽  
Federica Marini ◽  
...  
Keyword(s):  
Hydrogen Sulphide ◽  
Histological Evaluation ◽  
Dual Inhibitor ◽  
Number Of Factors ◽  
Sporadic Als ◽  
Sulphide Production ◽  
High Concentrations ◽  
Als Patients ◽  
H2s Production ◽  
Lateral Sclerosis

A number of factors can trigger amyotrophic lateral sclerosis (ALS), although its precise pathogenesis is still uncertain. In a previous study done by us, poisonous liquoral levels of hydrogen sulphide (H2S) in sporadic ALS patients were reported. In the same study very high concentrations of H2S in the cerebral tissues of the familial ALS (fALS) model of the SOD1G93A mouse, were measured. The objective of this study was to test whether decreasing the levels of H2S in the fALS mouse could be beneficial. Amino-oxyacetic acid (AOA)—a systemic dual inhibitor of cystathionine-β-synthase and cystathionine-γ lyase (two key enzymes in the production of H2S)—was administered to fALS mice. AOA treatment decreased the content of H2S in the cerebral tissues, and the lifespan of female mice increased by approximately ten days, while disease progression in male mice was not affected. The histological evaluation of the spinal cord of the females revealed a significant increase in GFAP positivity and a significant decrease in IBA1 positivity. In conclusion, the results of the study indicate that, in the animal model, the inhibition of H2S production is more effective in females. The findings reinforce the need to adequately consider sex as a relevant factor in ALS.

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