Respirometric screening of several types of manure and mixtures intended for composting

Barrena, Raquel; Turet, Josep; Busquets, Anna María; Farrés, Moisès; Font, Xavier; Sánchez, Antoni

doi:10.1016/j.biortech.2010.09.011

Cited by 42 publications

(34 citation statements)

References 35 publications

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“…The lowest values were recorded for the exhausted grape marc, obtained from the distillation process. These values are comparable to the ones found in the literature for aerobic processes applied to organic fractions, in similar operating conditions [31,32]. According to classifications found in other research studies [16] …”

Section: Biological Stabilitysupporting

confidence: 91%

Respirometric Index and Biogas Potential of Different Foods and Agricultural Discarded Biomass

et al. 2016

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Abstract:The biological stability of biomass is an important parameter for treatment plant design, process control or compost use. Measuring the biological reactivity of waste with the help of indicators such as respirometric indexes (RI) becomes an important tool to prevent the significant environmental impact of biodegradable wastes in accordance with European legislation. The aim of this paper is to show the importance of the RI technique as a tool to establish further uses of biomass such as fertilizer or biogas. The respirometric process length for different types of biomass (grape marc, apple pomace and olive pomace) was quantified. Higher moisture content seemed to favor the biological activity during the respirometric experiments and shorten the length of the process. The duration of olive pomace respirometry did not exceed 3 days, while the respirometric activity of apple scraps the lasted approximately 2 days. The highest RI values were encountered for the apple pomace, 4888 mgO 2 ·kg VS −1 ·h −1 . The majority of the discarded biomasses are categorized in the third class of stability materials in the course of degradation. This technique is important to detect the biodegradability of substrates, as well as to gain insight into the quantity and generation rate of biogas produced, information that is important from an engineering management perspective.

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Section: Biological Stabilitysupporting

confidence: 91%

Respirometric Index and Biogas Potential of Different Foods and Agricultural Discarded Biomass

et al. 2016

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“…Usually, the mixture formulations for composting are based on the physical and chemical properties of the raw materials (Barrena et al, 2011;Bernal et al, 2009) in order to adjust the moisture content and the ratio of carbon/nitrogen (C/N) to optimal values capable of favoring the growth and activity of microbial populations (Soares et al, 2013). According to Epstein (1997), raw materials, temperature, aeration, moisture content and C/N ratio are the major factors affecting the final quality of the compost.…”

Section: Introductionmentioning

confidence: 99%

Influence of the composition of the initial mixtures on the chemical composition, physicochemical properties and humic-like substances content of composts

et al. 2014

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“…The liquid manure/substrate ratio is typically greater than 8:1, to increase the concentration of pig slurry nutrients and significantly reduce the volume of waste generated. Sawdust has a high absorbing capacity, aiding the aerobic decomposition of the material (Huang et al 2006, Barrena et al 2011. PSC is easy to transport and use and has a high nutrient concentration and agronomic value (Bustamante et al 2013).…”

Section: Key-wordsmentioning

confidence: 99%

Pig slurry composting as a nitrogen source in proso millet crop

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Muraro

et al. 2016

Pesqui. Agropecu. Trop.

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With the intensification of pig farming systems, in Brazil, the production of swine waste has increased considerably, leading to water and soil contamination, due to its improper release. Pig slurry composting is an alternative that can be used in order to avoid or reduce negative impacts, especially for producers with physically limited farm areas, or those who intend to increase the number of animals in their production units. This study aimed at evaluating the influence of pig slurry compost doses on the agronomic characteristics and grain yield of proso millet. A randomized blocks design experiment was installed with four replications and five treatments: control without fertilization, control with mineral fertilizer (NPK) and pig slurry compost doses (4.0 Mg ha-1, 8.0 Mg ha-1; 12.0 Mg ha-1). The pig slurry composting increased the dry matter yield, number of grains per plant and grain yield of proso millet, when compared to the control with or without mineral fertilizer. The proso millet yield, at the doses of 8.0 Mg ha-1 and 12.0 Mg ha-1 of pig slurry, was superior than for both the control without fertilization and the control with the recommended mineral fertilizer, with the latter reaching a maximum agronomic efficiency at the dose of 8.0 Mg ha-1.

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Respirometric screening of several types of manure and mixtures intended for composting

Cited by 42 publications

References 35 publications

Respirometric Index and Biogas Potential of Different Foods and Agricultural Discarded Biomass

Respirometric Index and Biogas Potential of Different Foods and Agricultural Discarded Biomass

Influence of the composition of the initial mixtures on the chemical composition, physicochemical properties and humic-like substances content of composts

Pig slurry composting as a nitrogen source in proso millet crop

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