Effects of different types of biochar on the anaerobic digestion of chicken manure

Pan, Junting; Ma, Jun; Liu, Xiaoxia; Zhai, Limei; Ouyang, Xihui; Liu, Hongbin

doi:10.1016/j.biortech.2018.12.068

Cited by 195 publications

(67 citation statements)

References 46 publications

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“…Work [17] showed that 5% BC addition gave better (~2%) biogas yield than 10% BC addition to bio-waste anaerobic digestion. The positive effect, up to 69%, on the increase of biogas yield, was shown by Pan et al [54] who tested different types of biochars produced from wheat straw, discarded fruitwood and chicken manure under temperatures of 350, 450 and 550 • C. This also confirms that there appears to be a limit beyond which the properties of the biochar contribute to inhibiting the fermentation process or biogas net production.…”

Section: Assessment Of Biogas Production Potentialsupporting

confidence: 52%

The Effect of Biochar Addition on the Biogas Production Kinetics from the Anaerobic Digestion of Brewers’ Spent Grain

et al. 2019

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Biochar (BC) addition is a novel and promising method for biogas yield increase. Brewer’s spent grain (BSG) is an abundant organic waste with a large potential for biogas production. In this research, for the first time, we test the feasibility of increasing biogas yield and rate from BSG digestion by adding BC, which was produced from BSG via torrefaction (low-temperature pyrolysis). Furthermore, we explore the digestion of BSG with the presence BCs produced from BSG via torrefaction (low-temperature pyrolysis). The proposed approach creates two alternative waste-to-energy and waste-to-carbon type utilization pathways for BSG: (1) digestion of BSG waste to produce biogas and (2) torrefaction of BSG to produce BC used for digestion. Torrefaction extended the short utility lifetime of BSG waste turned into BC. BSG was digested in the presence of BC with BC to BSG + BC weight ratio from 0 to 50%. The study was conducted during 21 days under mesophilic conditions in n = 3 trials. The content of dry mass 17.6% in all variants was constant. The kinetics results for pure BSG (0% BC) were: reaction rate constant (k) 1.535 d−1, maximum production of biogas (B0) 92.3 dm3∙kg−1d.o.m. (d.o.m. = dry organic matter), and biogas production rate (r), 103.1 dm3∙kg−1d.o.m.∙d−1. his preliminary research showed that the highest (p < 0.05) r, 227 dm3∙kg−1d.o.m.∙d−1 was due to the 5% BC addition. This production rate was significantly higher (p < 0.05) compared with all other treatments (0, 1, 3, 8, 10, 20, 30, and 50% BC dose). Due to the high variability observed between replicates, no significant differences could be detected between all the assays amended with BC and the variant 0% BC. However, a significant decrease of B0 from 85.1 to 61.0 dm3∙kg−1d.o.m. in variants with the high biochar addition (20–50% BC) was observed in relation to 5% BC (122 dm3∙kg−1d.o.m.), suggesting that BC overdose inhibits biogas production from the BSG + BC mixture. The reaction rate constant (k) was not improved by BC, and the addition of 10% and 20% BC even decreased k relatively to the 0% variant. A significant decrease of k was also observed for the doses of 10%, 20%, and 30% when compared with the 5% BC (1.89 d−1) assays.

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Section: Assessment Of Biogas Production Potentialsupporting

confidence: 52%

The Effect of Biochar Addition on the Biogas Production Kinetics from the Anaerobic Digestion of Brewers’ Spent Grain

et al. 2019

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“…In addition, compared to electrical conductivity of granular AC (3000 μS/cm [45]) and pine wood-derived BC (2.11 -4.41 μS/cm [47]), MBC showed relatively high electrical conductivity of 3230 μS/cm mainly due to its high nutrient and metal compositions [48]. Also, Pan et al [24] reported higher electrical conductivity of chicken manure-derived BC (1420 -1730 μS/cm) than wheat straw-derived BC (210 -460 μS/cm) and fruit wood-derived BC (320 -590 μS/cm). It has been reported that genus Geobacter can transfer electrons to genus Methanosaeta and Methanosarcina through extracellular pili or conductive materials [49,50].…”

Section: Microorganisms On the Mbcmentioning

confidence: 98%

“…As a cost-effective CM, biochar (BC) has high potential as an additive and methane production enhancer in AD. Various BCs derived from pine wood [18], fruit wood [19,20], sawdust [21,22], cow manure [23] and chicken manure [24] have been utilized to enhance methane production in AD. However, response of addition of BC to AD is not universal (i.e.…”

Section: Introductionmentioning

confidence: 99%

Succession of microbial community in anaerobic digestion of dairy manure induced by manure-derived biochar

Jang

Brady

Kan

2020

Environmental Engineering Research

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The present study investigates possible roles of manure-derived biochar (MBC) in anaerobic digestion (AD) of dairy manure. Addition of MBC led to an increase in cumulative methane yield and a decrease in lag phase under all tested conditions (concentration of MBC: 1 and 10 g/L, temperature: 20, 35 and 55°C). For example, the cumulative methane yield in the mesophilic AD with 10 g/L MBC were 24.51% higher than that of the AD without MBC. Additionally, lag phage of mesophilic AD with 10 g/L MBC decreased from 2.08 d to 1.52 d. Microbial community analysis indicated that the addition of MBC to mesophilic and thermophilic AD of dairy manure increased the relative abundance of Ruminofilibacter which related to the hydrolysis. In addition, the addition of MBC to AD potentially stimulated the growth of syntrophic bacteria (e.g., genera Clostridium, Syntrophomonas and Syntrophus) and hydrogenotrophic methanogens (e.g., genera Methanobacterium, Methanolinea and Methanomassiliicoccus). Furthermore, microbial community analysis also suggested that mediate interspecies electron transfer and direct interspecies electron transfer would be accelerated by addition of MBC which showed high electrical conductivity (3230 μS/cm).

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“…Anaerobic co-digestion is an effective resource technology for converting solid waste biomass into biogas [15,16]. It has been previously reported that the substrates suitable for anaerobic co-digestion include crop stover, urban sludge, food waste, and livestock waste [17][18][19][20]. Many experts have started to study the application of anaerobic co-digestion technologies in the treatment of oil sludge [21], although there remain many gaps in knowledge on combined anaerobic co-digestion technologies and the chemical treatment of oily sludge, in terms of the sustainability of resources, energy, and environmental impact.…”

Section: Introductionmentioning

confidence: 99%

Anaerobic Co-Digestion of Oil Sludge with Corn Stover for Efficient Biogas Production

Yang

Zhang

et al. 2020

Sustainability

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The feasibility of anaerobic co-digestion for the utilization of oil sludge was verified using corn stover, to assess the influence of different raw material ratios and inoculum volumes on the properties of the generated gas. The anaerobic co-digestion method is a novel treatment technology, which may help to solve the problem of pollution by hazardous waste oil sand from the oil exploitation and smelting process. Results showed that single-oil sludge was not suitable for gas production as a digestive substrate due to the lack of organic materials and possible hazardous materials. With the increase in the quality of exogenous organic matter (corn stover), the cumulative gas production volume was proportional to the amount of corn stover material added. It was established that when the mass ratio of corn stover to oil sludge was 4:1, the gas production performance was optimal, with a cumulative gas yield of 1222.5 mL using an inoculum volume of 30 mL. The results of this study provide a fundamental parameter baseline for the treatment of oil sludge and the improvement of gas production efficiency.

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Effects of different types of biochar on the anaerobic digestion of chicken manure

Cited by 195 publications

References 46 publications

The Effect of Biochar Addition on the Biogas Production Kinetics from the Anaerobic Digestion of Brewers’ Spent Grain

The Effect of Biochar Addition on the Biogas Production Kinetics from the Anaerobic Digestion of Brewers’ Spent Grain

Succession of microbial community in anaerobic digestion of dairy manure induced by manure-derived biochar

Anaerobic Co-Digestion of Oil Sludge with Corn Stover for Efficient Biogas Production

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