Co-digestion of oat straw and cow manure during anaerobic digestion: Stimulative and inhibitory effects on fermentation

Yun-feng, Zhao; Sun, Fanrong; Yu, Jin; Cai, Yafan; Luo, Xiaosha; Cui, Zongjun; Hu, Yuegao; Wang, Xiaofen

doi:10.1016/j.biortech.2018.08.040

Cited by 92 publications

(31 citation statements)

References 25 publications

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“…Thus, 50 tons of straw can be used to generate 1 MW of power per hour. Residues from agriculture crops available on average ~5 ton/month co‐digested with animal manure enhance the biogas production rate . Therefore, average scaled biomass of 8 ton/month is taken as available biomass in the village throughout the year (Figure ), except for harvesting time of wheat and rice crop in the months of April and Sept to Nov, respectively.…”

Section: Estimated Load Profile and Resource Assessment Of The Study mentioning

confidence: 99%

Techno‐economic analysis of photovoltaic‐biomass‐based microgrid system for reliable rural electrification

Kaur

Dhundhara

Verma

et al. 2020

Int Trans Electr Energ Syst

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Burning of crop residues aggravates already existing pollution caused by coal‐based thermal power plants in most of the developing countries such as India. Crop residue consists mainly of organic compounds and can be efficiently utilized to produce biogas in a sustainable way through anaerobic digestion. This study proposes a microgrid (MG) system for the effective utilization of available renewable resources and reliable rural electrification. The detailed techno‐economic analysis of the design of a solar and biomass‐based MG system was performed. Two MG systems, namely, MG‐A having photovoltaic (PV), biomass‐based generating units, connected to an unreliable grid, and MG‐B having PV, biomass, and battery units working in the isolated mode, were designed for reliable rural electrification. Different performance‐assessment parameters such as generation responses, component cost, project feasibility, emissions, inflation rate, and fuel prices were taken into account during the investigation. This study concludes that a grid‐connected MG system is more capable of providing reliable electricity with reduced energy costs than an islanded MG system. In addition, the proposed MG power system helps to mitigate pollutant emission into the atmosphere by effectively utilizing the abundant biomass resources.

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Section: Estimated Load Profile and Resource Assessment Of The Study mentioning

confidence: 99%

Techno‐economic analysis of photovoltaic‐biomass‐based microgrid system for reliable rural electrification

Kaur

Dhundhara

Verma

et al. 2020

Int Trans Electr Energ Syst

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“…One of the main factors influencing the performance of the AD process lies on the inhibition due to the accumulation of volatile fatty acids (VFA). Zhao et al [3], reported that AD of agro-industrial waste could lead to an inhibition of the process due to its high carbon content since VFAs are derived from organic carbon. AcoD can be considered as an improvement of the AD due to several considerations such as the optimization in the nutritional balance of the microorganisms in the system, the maintenance of a resistant microbial mixture in the reactor, the balance between the four phases of the AD process, and the improvement of the biomass biodegradability [4].…”

Section: Introductionmentioning

confidence: 99%

Thermophilic Anaerobic Co-Digestion of Exhausted Sugar Beet Pulp with Cow Manure to Boost the Performance of the Process: The Effect of Manure Proportion

Gómez-Quiroga

Aboudi

Fernández-Güelfo³

et al. 2020

Water

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Sugar beet by-products are a lignocellulosic waste generated from sugar beet industry during the sugar production process and stand out for their high carbon content. Moreover, cow manure (CM) is hugely produced in rural areas and livestock industry, which requires proper disposal. Anaerobic digestion of such organic wastes has shown to be a suitable technology for these wastes valorization and bioenergy production. In this context, the biomethane production from the anaerobic co-digestion of exhausted sugar beet pulp (ESBP) and CM was investigated in this study. Four mixtures (0:100, 50:50, 75:25, and 90:10) of cow manure and sugar beet by-products were evaluated for methane generation by thermophilic batch anaerobic co-digestion assays. The results showed the highest methane production was observed in mixtures with 75% of CM (159.5 mL CH4/g VolatileSolids added). Nevertheless, the hydrolysis was inhibited by volatile fatty acids accumulation in the 0:100 mixture, which refers to the assay without CM addition. The modified Gompertz model was used to fit the experimental results of methane productions and the results of the modeling show a good fit between the estimated and the observed data.

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“…In general, the choice of co-substrates for FW anaerobic treatment is done referring to their high buffering capacity, capacity on C:N ratio regulation and the broad range of nutrients required by the methanogens, etc. (Zhao et al 2018, Zhang et al 2019. In this light, agricultural residues are considered as attractive co-substrates to be exploited for biological treatments, and aerobic and anaerobic processes.…”

Section: Introductionmentioning

confidence: 99%

Effects of Co-substrates’ Mixing Ratios and Loading Rate Variations on Food and Agricultural Wastes’ Anaerobic co-digestion Performance

Chaher

Engler

Nassour

et al. 2020

Preprint

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Tunisia is one of the developing countries which faces crucial challenges, the most prominent of which are the production of organic waste, the need for an appropriate waste treatment, and the demand for water and energy conservation. To this end, the present research was designed to develop a technical concept on closed cycle ‘biowaste to bioenergy’ treating food waste (FW) through combined biological processes. In this approach, semi-continuous anaerobic co-digestion (ACoD) of FW, wheat straw (WS), and cattle manure (CM) was tested to investigate the relationship between the effect of the feedstock mixtures and C:N ratio on biogas and digestate generation at different organic loading rates (OLRs) ranging from 2 to 3.6 kg VS/m3.d. Results showed that the mono-digested FW was optimal and reached 565.5 LN/kg VSin at an OLR of 2.4 kg VS/m3.d, and then a drop of biogas production was recorded. However, for co-digested substrates, the optimum mixture ratio was FW:CM 75:25, where 62%, 39.89%, 91.26%, 130.9% and 119.97% of the biogas yield improved for OLRs ranging from 2 to 3.6 kg VS/m3. d, respectively. Admittedly, the target of this work was to enhance the ACoD process, but it also examined the exploitation of different AD-effluents. Therefore, special attention was paid to the generated digestates to decide how it can be efficiently upcycled later. Thus, the closed cycle ‘biowaste to bioenergy’ treatment met two of the major Tunisian concerns: efficient organic waste management as well as sustainable bioenergy production.

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Co-digestion of oat straw and cow manure during anaerobic digestion: Stimulative and inhibitory effects on fermentation

Cited by 92 publications

References 25 publications

Techno‐economic analysis of photovoltaic‐biomass‐based microgrid system for reliable rural electrification

Techno‐economic analysis of photovoltaic‐biomass‐based microgrid system for reliable rural electrification

Thermophilic Anaerobic Co-Digestion of Exhausted Sugar Beet Pulp with Cow Manure to Boost the Performance of the Process: The Effect of Manure Proportion

Effects of Co-substrates’ Mixing Ratios and Loading Rate Variations on Food and Agricultural Wastes’ Anaerobic co-digestion Performance

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