Analytical procedures, data reporting and selected reference values for biological hydrogen production

Hitit, Zeynep Yilmazer; Hallenbeck, Patrick C.

doi:10.1016/j.biombioe.2021.106014

Cited by 14 publications

(2 citation statements)

References 143 publications

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“…Efficient conversion of organic compounds to volatile fatty acids directly affects the rate and effectiveness of methanogenesis and improves digestate stability [ 43 ]. The most frequently monitored intermediate indicators of the efficiency of pretreatment methods tested include concentrations of COD, TOC, glucose, and other sugars in the dissolved phase [ 44 ].…”

Section: Resultsmentioning

confidence: 99%

Effect of Acid Whey Pretreatment Using Ultrasonic Disintegration on the Removal of Organic Compounds and Anaerobic Digestion Efficiency

Kazimierowicz

Zieliński

Bartkowska

et al. 2022

IJERPH

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Acid whey is a by-product of the dairy industry that should be utilized or appropriately neutralized. Anaerobic processes represent a group of prospective methods for whey processing, and a key priority in their development is to improve their technological and economical effectiveness. The present study aimed to determine the effect of ultrasonic disintegration (UD) of acid whey on the course and effectiveness of methane fermentation. The study results demonstrated that extending the UD duration resulted in increased concentrations of dissolved forms of COD and TOC, efficiency of organic matter biodegradation, and CH4 production. The best effects were achieved at 900 s US, including CH4 production of 0.203 ± 0.01 dm3/gCODin. and CH4 content accounting for 70.9 ± 2.8%. Organic compounds were removed with the following efficiencies: COD—78.7 ± 2.1%, TOC—80.2 ± 1.3%, and BOD5—84.1 ± 1.6%. The highest net energy gain of 5.763 Wh was achieved upon UD of 300 s. Extension of UD time had no significant effect on the improvement in the energetic effectiveness of anaerobic digestion. A strong positive correlation was found between COD and TOC concentrations in the dissolved phase and CH4 production yield.

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Section: Resultsmentioning

confidence: 99%

Effect of Acid Whey Pretreatment Using Ultrasonic Disintegration on the Removal of Organic Compounds and Anaerobic Digestion Efficiency

Kazimierowicz

Zieliński

Bartkowska

et al. 2022

IJERPH

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“…If the hydrogen fraction was above 1000 ppm, we corrected the measurement by taking 1 mL of the sample and putting it into a Todlar bag for chromatograph detection. Then, biogas content was assessed using a gas chromatograph (GC) GC SRI 8060 with a thermal conductivity detector (SRI) and argon as a carrier (gas flowrate was 0.6 mL/h), as recommended by Hitit and Hallenbeck [53]. A silica packed column Restek ® with characteristics of 2 m/2 mm ID 1/8″ OD silica was used.…”

Section: Description Of Experimentsmentioning

confidence: 99%

Hydrogen Production from Gelatin, Cotton, Wheat Straw, and Sour Cabbage and Their Mixtures—Short Communication

Sołowski

Shalaby

Özdemir

2023

Biomass

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The influence of microaeration, pH, and substrate during dark fermentation of sour cabbage, gelatin, and wheat straw was investigated, and the results of dark fermentation of these three substrates and their mixtures are presented in this research. The fermentation of cabbage, gelatin, and wheat straw was investigated under varying pH and aeration conditions. We investigated concentrations of volatile suspended solids (VSS) of 20 g VSS/L of a substrate at a stable pH of 6.0 and a not aligned pH value. Sour cabbage resulted in the highest volume of hydrogen for 450 mL/g VSS with a pH of 6.0. The mixing of substrates caused lower hydrogen production than sour cabbage or wheat straw alone.

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Electrochemical Approach for Hydrogen Technology: Fundamental Concepts and Materials

Márquez,

Ng,

Torres

et al. 2024

Advances in Material Research and Technology

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Analytical procedures, data reporting and selected reference values for biological hydrogen production

Cited by 14 publications

References 143 publications

Effect of Acid Whey Pretreatment Using Ultrasonic Disintegration on the Removal of Organic Compounds and Anaerobic Digestion Efficiency

Effect of Acid Whey Pretreatment Using Ultrasonic Disintegration on the Removal of Organic Compounds and Anaerobic Digestion Efficiency

Hydrogen Production from Gelatin, Cotton, Wheat Straw, and Sour Cabbage and Their Mixtures—Short Communication

Electrochemical Approach for Hydrogen Technology: Fundamental Concepts and Materials

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