Iron-coated biochar alleviates acid accumulation and improves methane production under ammonium enrichment conditions

2021 ◽  
pp. 151154
Author(s):  
Yuanfang Deng ◽  
Jun Xia ◽  
Rui Zhao ◽  
Jiaxing Xu ◽  
Xiaoyan Liu
Keyword(s):  
Methane Production ◽  
Acid Accumulation

Palmitic acid accumulation limits methane production in anaerobic co-digestion of fats, oils and grease with municipal wastewater sludge

2020 ◽  
Vol 396 ◽  
pp. 125235 ◽  
Author(s):  
Jessica A. Deaver ◽  
Karla I. Diviesti ◽  
Mehul N. Soni ◽  
Barbara J. Campbell ◽  
Kevin T. Finneran ◽  
...  
Keyword(s):  
Palmitic Acid ◽  
Methane Production ◽  
Municipal Wastewater ◽  
Wastewater Sludge ◽  
Acid Accumulation ◽  
Oils And Grease

scholarly journals The effect of anaerobic co-fermentation on acidification performance of food waste and cardboard waste

2022 ◽  
Author(s):  
Gu Shiyan ◽  
Zhang Wenyi ◽  
Xing Huige ◽  
Wang Ruji ◽  
Sun Jiyang ◽  
...  
Keyword(s):  
Food Waste ◽  
Methane Production ◽  
Reaction System ◽  
Total Solid ◽  
Caproic Acid ◽  
Added Value ◽  
Normal Operation ◽  
Volatile Acid ◽  
Acid Accumulation ◽  
Stabilization Effect

Abstract The fermentation system with high solid materials for food waste (FW) is uneven in nutrition and easy to produce volatile acid accumulation, which causes the reaction system to acidify and affects the normal operation of fermentation. This study evaluated the effect of the co-substrate percentages (FW:CB = 9:1, FW:CB = 8:2, FW:CB = 7:3) and the initial total solid contents (12%, 15%, 18%) on the co-fermentation acidification performance of FW and cardboard waste (CB). The maximum methane production was obtained when mono-fermenting FW had high solids contents(1.4 L/kg). The methane production increased and then decreased with the increasing percentages of CB. Under the conditions of FW:CB = 8:2, the maximum methane production could reach 3.4 L/kg. The lower methane production (1.8 ∼ 2.5 L/kg) with high percentages of CB (FW:CB = 7:3) was translated into higher yields of caproic acid (up to 26%), which indicated lower percentages of CB had a stabilization effect due to the higher buffering capacities in co-fermentation. As a result, this study demonstrated new possibilities for using CB percentages to control the production of high added-value biogas in dry co-fermentation of FW.

THERMAL EFFICIENCY OF SMALL SCALE BIOGAS PLANT FOR BIO-METHANE PRODUCTION

2015 ◽  
Vol 14 (4) ◽  
pp. 745-749
Author(s):  
Daisuke Tashima ◽  
Yoki Asano ◽  
Shigeki Tomomatsu ◽  
Yasuhiro Sugimoto
Keyword(s):  
Thermal Efficiency ◽  
Methane Production ◽  
Biogas Plant ◽  
Small Scale

Breeding evaluation of apple hybrid offspring on accumulation in fruits of ascorbic acid

2020 ◽  
Vol 61 ◽  
pp. 24-28
Author(s):  
A. S. Zemisov ◽  
A. N. Yuchkov ◽  
N. N. Saveleva ◽  
V. V. Chivilev ◽  
T. A. Cherenkova
Keyword(s):  
Ascorbic Acid ◽  
Hybrid Offspring ◽  
Original Parent ◽  
Acid Accumulation

A different level of ascorbic acid accumulation in the apple original parent varieties and hybrid offspring was identified. The best promising genotypes and cross combinations worthy of use in further breeding studies were revealed.

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