Evaluation of lignocelullose compost stability and maturity using spectroscopic (FTIR) and thermal (TGA/TDA) analysis

Ouaqoudi, Fatima Zahra El; Fels, Loubna El; Lemée, Laurent; Amblès, André; Hafidi, Mohamed

doi:10.1016/j.ecoleng.2014.12.004

Cited by 80 publications

(51 citation statements)

References 22 publications

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“…Of note, there are instances of the presence of residual nitrogen compounds and organic matter to a certain extent in the biochar spectrum. The FTIR spectra of the waste food from restaurants showed a high tip in lines at 3300 cm −1 , which may be due to the OH vibration of the hydroxyl groups [35]. It is worth mentioning that this tip was not present in the biochar.…”

Section: Changes In Chemical Bond Structure With Pyrolysis Temperaturementioning

confidence: 95%

Properties of Biochar from Anaerobically Digested Food Waste and Its Potential Use in Phosphorus Recovery and Soil Amendment

et al. 2018

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The disposal of a large amount of biogas residue from anaerobically digested food waste is a burden for biogas production. The aim of this work was to investigate biogas residue as a potential feedstock, by preparing biochar at a broad pyrolysis temperature range of 400-900 • C. The properties required for phosphorus recovery and soil amendment application were evaluated. Biogas residue collected from an urban food waste treatment plant was pyrolyzed in a laboratory scale reactor. It was found that by increasing the pyrolysis temperature, the yield of biochar decreased and the pH, electrical conductivity and Brunauer-Emmett-Teller surface area increased. The amount of phosphorus adsorbed onto the biogas residue-derived biochar (BRB) at 900 • C was larger than that of other kinds of biochar. The kinetics of phosphorus (P) adsorption on BRB could be described by the pseudo-second-order equation. The pot experiments showed that the resulting biochar is beneficial for the growth of cabbage. Overall, turning solid residue from the anaerobic digestion of food waste for biogas production into biochar shows good prospects as a means of solving the disposal problem, while creating new markets for food waste biogas residue.

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Section: Changes In Chemical Bond Structure With Pyrolysis Temperaturementioning

confidence: 95%

Properties of Biochar from Anaerobically Digested Food Waste and Its Potential Use in Phosphorus Recovery and Soil Amendment

et al. 2018

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“…The results revealed that the appearance of COO groups and relative reduction in OH, CH 3 and CH 2 groups in vermicomposted mixtures indicated decrease in aliphatic compounds and organic waste mineralization. El Ouaqoudi et al (2015) used FT-IR spectroscopy analysis for the evaluation of lignocelullose compost maturity (date palm waste). The infrared spectroscopy revealed an increase in aromaticity and polysaccharide reduction which indicates increase in humification/mineralization during composting process.…”

Section: Fourier Transform Infrared Spectroscopy Analysis In Vermicommentioning

confidence: 99%

“…The changes in the HAs' chemical composition during vermicomposting may be due to the joint action of earthworms and microbes. El Ouaqoudi et al (2015) used thermogravimetric analysis for evaluation of compost maturity of two wastes (date palm waste with couch-grass clippings and date palm waste alone). The authors observed the reduction of mass loss in both the composts which indicates degradation of aromatic structures, aliphatic compounds and carbohydrates.…”

Section: Thermogravimetric (Tg) Analysis In Vermicompostingmentioning

confidence: 99%

Instrumental characterization of organic wastes for evaluation of vermicompost maturity

Bhat

Singh

2017

J Anal Sci Technol

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Instrumental analysis of vermicompost with the help of modern technologies provides essential information on its maturity, before it can be used for agricultural application. Nowadays, vermicompost is considered as a promising organic alternative to chemical fertilizers in agriculture and horticulture. The objectives of this review are to summarize the sophisticated instrumental techniques such as scanning electron microscopy (SEM), fourier transform infrared (FT-IR) spectroscopy, thermogravimetry (TG), ultraviolet-visible (UV-vis) spectroscopy techniques, physico-chemical parameters (pH, electrical conductivity, organic carbon content, C:N ratio, nitrogen, phosphorus, potassium, sodium, calcium) and biological indicator (germination index) to determine the maturity of vermicompost produced from organic wastes. These techniques are reliable, fast and are capable of tracking organic waste degradation during the bioconversion process and fertilizing ability of the final product. SEM analysis provides essential information on surface morphology of vermicompost samples. The SEM micrograph of final vermicompost reveals disaggregation. In contrast, the initial SEM micrograph reflects robust and relatively contiguous structures. FT-IR spectroscopy technique is used to confirm the decomposition of polypeptides, polysaccharides, aliphatic, aromatic, carboxylic, phenolic groups and lignin during vermicomposting of organic wastes. TG method is used to characterize organic waste mineralization where progressive reduction in the mass loss of vermicompost indicates net mineralization and degradation. UV-vis spectroscopy is used to assess the degree of humification. The sharp fall in humification index during vermicomposting process indicates high level of organic material humification. Changes in physico-chemical and biological parameters are also an indicative parameter for organic waste mineralization as well as vermicompost stability and maturity.

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“…The increase in the intensity of peak absorption at 1450 and 1390 cm −1 indicated the presence of oxidation reactions, with the formation of carboxyl and carbonate acids [46,47,49].…”

Section: Fourier Transform Infrared Spectroscopy (Ft-ir)mentioning

confidence: 98%

“…The main absorption peaks of the IR spectrum and their respective attributions are seen in Table 3 [44,46].…”

Section: Fourier Transform Infrared Spectroscopy (Ft-ir)mentioning

confidence: 99%

Home Composting Using Facultative Reactor

Campos¹,

Zittel²,

daCunha³

et al. 2017

Solid Waste Management in Rural Areas

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Concerns with the final destination of organic solid waste (OSW) generated in rural areas originate from the possibility of this waste harming the environment, in addition to producing bad smell and attracting pests, when improperly disposed of in the soil. In this sense, composting might be a suitable way of dealing with this residue. This chapter presents the advantage of treating rural OSW through composting in reactors. Facultative reactors present the advantage of not requiring handling or large areas for the waste processing, and they do not generate bad smell and do not attract pests, which represent common drawbacks of the conventional windrow composting process. The final product of this composting process can be used as fertilizer for crops, resulting in the economy, since commercial fertilizers do not have to be bought. Works carried out by the Analytical and Environmental Chemistry Research Group at the State University of Ponta Grossa-Brazil have reported important results regarding the use of facultative reactors with different OSW mixtures. From the monitoring of physical, chemical, biological and spectroscopic parameters, it was seen that composting in facultative reactors produced stable compost matured in a short period of time.

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Evaluation of lignocelullose compost stability and maturity using spectroscopic (FTIR) and thermal (TGA/TDA) analysis

Cited by 80 publications

References 22 publications

Properties of Biochar from Anaerobically Digested Food Waste and Its Potential Use in Phosphorus Recovery and Soil Amendment

Properties of Biochar from Anaerobically Digested Food Waste and Its Potential Use in Phosphorus Recovery and Soil Amendment

Instrumental characterization of organic wastes for evaluation of vermicompost maturity

Home Composting Using Facultative Reactor

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