The peculiar role of C/N and initial pH in anaerobic digestion of lactating and non-lactating water buffalo manure

Carotenuto, Claudia; Guarino, Giovanna; D’Amelia, Luisa; Morrone, Biagio; Minale, Mario

doi:10.1016/j.wasman.2019.12.008

Cited by 26 publications

(3 citation statements)

References 26 publications

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“…As it can be observed by Table 1, the moisture content is quite large but the value is in the classical range for FW. The ultimate analysis accounts for a C/N value of 27.8 which is in the optimal range, as reported in literature, for LA and biogas yields [27]. The ash content, which represents the inert component of the substrate, is around 15% on dry basis.…”

Section: Characterization Of the Input Substratesmentioning

confidence: 93%

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Assessment of Integration between Lactic Acid, Biogas and Hydrochar Production in OFMSW Plants

et al. 2020

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Biological treatments such as anaerobic digestion and composting are known to be the most widespread methods to deal with Organic Fraction of Municipal Solid Waste (OFMSW). The production of biogas, a mix of methane and carbon dioxide, is worth but alone cannot solve the problems of waste disposal and recovery; moreover, the digestate could be stabilized by aerobic stabilization, which is one of the most widespread methods. The anaerobic digestion + composting integration converts 10% to 14% of the OFMSW into biogas, about 35–40% into compost and 35–40% into leachate. The economic sustainability could be rather increased by integrating the whole system with lactic acid production, because of the high added value and by substituting the composting process with the hydrothermal carbonization process. The assessment of this integrated scenario in term of mass balance demonstrates that the recovery of useful products with a potentially high economic added value increases, at the same time reducing the waste streams outgoing the plant. The economic evaluation of the operating costs for the traditional and the alternative systems confirms that the integration is a valid alternative and the most interesting solution is the utilization of the leachate produced during the anaerobic digestion process instead of fresh water required for the hydrothermal carbonization process.

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Section: Characterization Of the Input Substratesmentioning

confidence: 93%

“…Typically, the optimum value for methane production is assumed to be between 20 and 30 [18,23,27]. C, N and H substrate content were determined using the analyzer LECO CHN-S 628 (USA).…”

Section: Ultimate Analysis and C/n Ratiomentioning

confidence: 99%

Assessment of Integration between Lactic Acid, Biogas and Hydrochar Production in OFMSW Plants

et al. 2020

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“…Based on the previous work, this study initially screened five decomposition inoculants suitable for the pre-treatment of organic waste from the transformation of P. brevitarsis larvae [31,40]. On the other hand, the C/N ratio is essential for material decomposition [76][77][78]. This study chose cattle manure, which is plentiful in the Xinjiang region and is a better feed for P. brevitarsis larvae, as the auxiliary material to adjust the C/N ratio of the raw materials [79].…”

Section: Introductionmentioning

confidence: 99%

Transformation Capability Optimization and Product Application Potential of Proteatia brevitarsis (Coleoptera: Cetoniidae) Larvae on Cotton Stalks

Zhang

et al. 2022

Insects

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Cotton stalks (CS) are a potential agricultural biomass resource. We investigated the use of CS as a feed for Proteatia brevitarsis Lewis larvae and the resulting frass (larvae dung-sand) as a fertilizer. Based on a three-factor experiment (decomposition inoculant, fermentation duration, and cattle manure ratio), the optimal parameters for the transformation of CS using P. brevitarsis larvae were determined as 40–50% of cattle manure, the use of VT inoculant and a fermentation duration of 25–30 days. Regarding the products of the transformation, the protein content of the larval body was as high as 52.49%, and the fat content was 11.7%, which is a suitable-quality insect protein source. The organic matter content of larvae dung-sand was 54.8%, and the content of total nitrogen, phosphorus, and potassium (TNPK) was 9.04%, which is twice more than that of the organic fertilizer standard (NY525-2021, Beijing, China, TNPK ≥ 4.0%), and larvae dung-sand has the potential of fertilizer application. Therefore, CS as a feed and fertilizer based on the transformation of P. brevitarsis larvae is feasible, and it is a highly efficient way to promote the utilization of both CS and cattle manure.

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Analysis of the criteria for improving biogas production: focus on anaerobic digestion

Karidio Daouda Idrissa,

Tsuanyo,

Kouakou

et al. 2023

Environ Dev Sustain

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The peculiar role of C/N and initial pH in anaerobic digestion of lactating and non-lactating water buffalo manure

Cited by 26 publications

References 26 publications

Assessment of Integration between Lactic Acid, Biogas and Hydrochar Production in OFMSW Plants

Assessment of Integration between Lactic Acid, Biogas and Hydrochar Production in OFMSW Plants

Transformation Capability Optimization and Product Application Potential of Proteatia brevitarsis (Coleoptera: Cetoniidae) Larvae on Cotton Stalks

Analysis of the criteria for improving biogas production: focus on anaerobic digestion

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