Increase of biogas production from pretreated hay and leaves using wood-rotting fungi

Martı́n, Tomás; Prousek, Josef; Švorc, Ľubomír; Drtil, Miloslav

doi:10.2478/s11696-012-0171-1

Cited by 33 publications

(15 citation statements)

References 31 publications

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“…Several fungi classes, including brown-rot, white-rot and soft-rot fungi (i.e., Ceriporiopsis subvermispora , Auricularia auricula - judae , Trichoderma reesei ), and basidiomycetes (e.g., Ischnoderma resinosum and Fomitella fraxinea ) have been used for pretreatment with white-rot fungi being the most effective through the action of lignin-degrading enzymes (e.g., peroxidases and laccase) (Zheng et al 2014 ). After fungal pretreatment, a 5–15 % increase in the methane yield was obtained (Mackuľak et al 2012 ; Sun et al 2014 ). The aim of this study is to improve the performance of anaerobic digestion of lignocellulosic park wastes and cattle dung, by applying physico-chemical pretreatments and fungal fungal treatment.…”

Section: Introductionmentioning

confidence: 99%

Physico-chemical pretreatment and fungal biotreatment for park wastes and cattle dung for biogas production

Ali

Sun

2015

SpringerPlus

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With the rising demand for renewable energy and environmental protection, anaerobic digestion of biogas technology has attracted considerable attention within the scientific community. The effect of physico-chemical pretreatment on cellulose degradation followed by fungal treatment by Aspergillus terreus and Trichoderma viride to treat cellulosic biomass for enhancing its digestibility was investigated. The tested substrate was digested with and without physical, chemical, and biological treatment. Fresh leaves, dry leaves and cattle dung were characterized by a total solids content 35, 84 and 17 %, volatile solids content 81.2, 59.49 and 64.5 % and C/N ratio 31, 45.4 and 13.6, respectively. Biogas total volume was determined using water replacement technique, while methane volume was determined using precipitation of CO2 in 20 % NaOH solution. Pretreatment steps were carried out by using mechanical and chemical pretreatments using 2.5 % NaOH mixed with 2.5 % NH4OH for 15 days, followed by biological treatment of A. terreus and T. viride. The potential of pretreatment of substrate was studied at regular intervals of 0, 7, 14, 21, 28, 35, 42, 49, 56, 63 and 70 days determining the change in chemical and physical compositions of used substrates. Biogas production was 102.6 and 125.9 L/KgVS from untreated and pretreated substrate, respectively. On the other hand, methane production was 61.4 and 79.8 L/KgVS from untreated and pretreated substrate, respectively. In conclusion, Physical (milling), chemical (NaOH and NH4OH) pretreatment in addition to fungal (A. terreus and T. viride) treatment for the tested substrate prior to AD was an efficient process for improvement of biogas and methane production.Electronic supplementary materialThe online version of this article (doi:10.1186/s40064-015-1466-9) contains supplementary material, which is available to authorized users.

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Section: Introductionmentioning

confidence: 99%

Physico-chemical pretreatment and fungal biotreatment for park wastes and cattle dung for biogas production

Ali

Sun

2015

SpringerPlus

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“…The cellulase (CMCase) activity was determined by incubation 500 µL of 1% CMC in 50 mM sodium phosphate buffer (pH 7.5) with 500 µL cell-free culture for 30 min at 50°C . The reaction was terminated by adding the 1 mL 3 mL, 5 mL dinitrosalicylic acid (DNS) reagent and boiled in a water bath for 10 min [19,20] . After cooling at room temperature, the amount of glucose released was determined by measuring absorbance at 540 nm [21] .…”

Section: Methodsmentioning

confidence: 99%

Optimization of fermentation factors to enhance rice straw degradation ability using a microbial consortium LZF-12

Zheng¹,

Zhou²,

Yin³

et al. 2019

International Journal of Agricultural and Biological Engineering

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Biological pretreatment has broad application prospects in agricultural waste treatment because of its economic benefits, environmental protection and energy saving characteristics. In this study, a microbial consortium LZF-12 was applied for a biological pretreatment to degrade rice straw. Batch experiments were performed under hydrolysis conditions by using the method of Box-Behnken factorial design (BBD). The results showed that the model multiple correlation coefficient R 2 was 0.9816, and the effects of three factors on the degradation of rice straw of LZF-12 as descending order were the initial rice content, chicken manure content, and initial pH value. The interaction between straw concentration, chicken manure concentration, and initial pH value had significant effects on the degradation of a microbial consortium. Under the optimum conditions of 0.86% rice straw, 0.5% chicken manure and the initial pH value of 7.0, the degradation rate of rice straw reached 72.4%. There is only a small difference of 0.55% between the experimental value and predicted value from BBD model. Therefore, it is feasible for the established model due to the consistent results between the prediction and experimental value. The microbial consortium LZF-12 has high cellulase enzyme activities and degradation ability over a wide range of temperature and pH value, indicating that it has a good development potential and application prospects in waste biodegradation and biomass energy production.

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“…Pretreating orange processing waste with strains of Sporotrichum, Aspergillus, Fusarium, and Penicillium, Srilatha et al [88] observed a positive effect on biogas production and biogas potential. Mackul'ak et al [89] inoculated sweet chestnut leaves and hay with the fungus Auricularia auricula-judae and observed an increase in methane productivity. Parthiba Karthikeyan et al [48] found that biological pretreatments are not yet available for food wastes and demand urgent need for further research.…”

Section: Aerobic Pretreatment With Defined Fungal Culturesmentioning

confidence: 99%

Biological Pretreatment Strategies for Second-Generation Lignocellulosic Resources to Enhance Biogas Production

et al. 2018

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With regard to social and environmental sustainability, second-generation biofuel and biogas production from lignocellulosic material provides considerable potential, since lignocellulose represents an inexhaustible, ubiquitous natural resource, and is therefore one important step towards independence from fossil fuel combustion. However, the highly heterogeneous structure and recalcitrant nature of lignocellulose restricts its commercial utilization in biogas plants. Improvements therefore rely on effective pretreatment methods to overcome structural impediments, thus facilitating the accessibility and digestibility of (ligno)cellulosic substrates during anaerobic digestion. While chemical and physical pretreatment strategies exhibit inherent drawbacks including the formation of inhibitory products, biological pretreatment is increasingly being advocated as an environmentally friendly process with low energy input, low disposal costs, and milder operating conditions. Nevertheless, the promising potential of biological pretreatment techniques is not yet fully exploited. Hence, we intended to provide a detailed insight into currently applied pretreatment techniques, with a special focus on biological ones for downstream processing of lignocellulosic biomass in anaerobic digestion.

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Increase of biogas production from pretreated hay and leaves using wood-rotting fungi

Cited by 33 publications

References 31 publications

Physico-chemical pretreatment and fungal biotreatment for park wastes and cattle dung for biogas production

Physico-chemical pretreatment and fungal biotreatment for park wastes and cattle dung for biogas production

Optimization of fermentation factors to enhance rice straw degradation ability using a microbial consortium LZF-12

Biological Pretreatment Strategies for Second-Generation Lignocellulosic Resources to Enhance Biogas Production

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