Composting of swine production chain wastes with addition of crude glycerin: organic matter degradation kinetics, functional groups, and carboxylic acids

Santos, Francielly Torres dos; Fehmberger, Cleide; Aloisio, Cleiton Margatto; Bautitz, Ivonete Rossi; Hermes, Eliane

doi:10.1007/s11356-021-14063-6

Cited by 5 publications

(2 citation statements)

References 62 publications

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“…Among the parameters to assess compost maturity, FT-IR can aid in understanding structural changes in organic material (Asses et al, 2018). Vermicompost spectra showed characteristic bands of the functional groups at the beginning and end of the stabilization process, with different intensities of certain bands in the final composts (Figure 4), such as greater stretching in bridged -OH (~3,400 cm -1 ) and C=C of aromatic groups (1,650-1,630 cm -1 ), which confirms the mineralization of organic matter (Santos et al, 2021).…”

Section: Vermicomposting Stabilization Processmentioning

confidence: 87%

Sustainable valorization of Moringa oleifera Lam. co-products and zoo waste

Rubio,

Coldebella,

Boroski

et al. 2024

Rev. Bras. Ciênc. Ambient.

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Moringa oleifera (moringa) stands out as a promising plant in several segments, being produced worldwide. However, its co-products, particularly valves and seed husks, which represent more than 70% of its fruit, remain underutilized. Therefore, this work aimed to assess the use of parts of the moringa fruit in conjunction with sediment from an artificial pond in a zoo enclosure inhabited by Tapirus terrestris (tapir), exploring the potential treatment of these wastes, using Eisenia foetidaearthworms. Five experimental conditions were analyzed, whose waste proportions were varied. The vermicomposts were not phytotoxic and differed regarding the C/N ratio; those that received parts of the moringa fruit had a higher C/N ratio. As commonly observed in stabilization processes, the contents of P, K, Ca, and electrical conductivity increased, while carbon and pH decreased during stabilization. Plant development of Catharanthus roseus was evaluated using, in addition to the vermicomposts, two commercial composts. The vermicomposts provided better development of C. roseus than the commercial composts, with T2 (65% sediment+35% fruit valves) and T3 (50% sediment+35% valves+15% seed husks) standing out as the best treatments. Vermicomposting associated with moringa co-products and zoo waste is a viable alternative via aerobic treatment, favoring waste management and the search for sustainability.

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Section: Vermicomposting Stabilization Processmentioning

confidence: 87%

Sustainable valorization of Moringa oleifera Lam. co-products and zoo waste

Rubio,

Coldebella,

Boroski

et al. 2024

Rev. Bras. Ciênc. Ambient.

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“…This is particularly important for pot-grown plants, as in this case, the growing substrates must sustain plants throughout their entire life cycle [10]. Organic amendments produced from agro-industrial wastes are well known to be rich in nutrients and to play vital roles in plant development [11][12][13][14]. However, studies are needed on the assessment of the chemical and physical properties of organic amendments, especially when they are used as growth media for potted spice plant species.…”

Section: Introductionmentioning

confidence: 99%

Spectroscopic and Physicochemical Characterization of Poultry Waste-Based Composts and Charcoal–Compost Mixtures for the Prediction of Dry Matter Yield of Giant of Italy Parsley

Santos

Costa

et al. 2022

Agronomy

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Plant growing substrates obtained by composting agro-industrial waste can serve as organic soil amendments. However, it is crucial to determine the maturity and quality of organic amendments before their application to soil. This study aimed to evaluate the suitability of compost obtained from poultry wastes combined with five different vegetal residues (tree trimmings, sugarcane bagasse, sawdust, cotton residues, and Napier grass) as growth media for container-grown Giant of Italy parsley. Fourier-transform infrared and laser-induced fluorescence spectra were used to characterize the humification extent in composts before and after the addition of charcoal at five inclusion rates (0%, 15%, 30%, 45%, and 60%, weight basis). Spectroscopic measurements identified absorption bands between 1625 and 1448 cm−1 specific to each of the 25 organic amendments evaluated. The most suitable amendments (composts made from sawdust and sugarcane bagasse) were associated with O–H stretching of phenols and aromatic rings. Charcoal addition to composts changed some of their physical characteristics, leading to increased nutrient availability in some cases. Experimental and calculated dry matter yield were compared via multiple linear regression and simple non-linear regression as a function of the spectroscopic and physicochemical (N, P, K, pH, EC, C, HLIF, C:N, CEC, HA:HA) properties of the organic amendments. Regression models accurately assigned high yields to the sawdust- and bagasse-based composts and low yields to the Napier grass- and cotton-based composts. Electrical conductivity (EC) was the main factor limiting potted-parsley productivity, an indication that efficient management of charcoal rate and compost EC levels can aid in predicting parsley yield.

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