Bioavailability and dosing strategies of mineral in anaerobic mono‐digestion of maize straw

González-Suárez, Aimeé; Reyes, Ileana Pereda; Oliva-Merencio, Deny; Suárez-Quiñones, Teresa; Silva, Ariovaldo José da; Zaiat, Marcelo

doi:10.1002/elsc.201700018

Cited by 12 publications

(8 citation statements)

References 24 publications

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“…The effect of the bioavailability of Fe, Ni, Co, and Mn on the CH 4 yield from the AD of MS in the semi-continuous CSTR was studied by González-Suárez [121]. The results indicated a decreasing trend of highly bioavailable fractions of TEs over time.…”

Section: Bioavailability Of Trace Elements (Tes)mentioning

confidence: 99%

A Review on the Fate of Nutrients and Enhancement of Energy Recovery from Rice Straw through Anaerobic Digestion

2020

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Open field burning and tilling the rice straw (RS) back into the fields causes environmental threats by contributing to the increased greenhouse gas emissions. Energy and nutrient recovery from RS through anaerobic digestion (AD) is an effective solution for its utilization. Although RS has good methane potential, its characteristics make it a difficult substrate for AD. This paper reviews the characteristics of RS, mass balance, and distribution of nutrients into liquid and solid digestate in the AD. The present review also discusses the effect of temperature, co-digestion, mixing, inoculum, organic loading rate, recycling liquid digestate, the addition of trace elements, and their bioavailability on the enhancement of biogas/methane yield in the AD of RS. In addition, the digestion of RS at various scales is also covered in the review.

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Section: Bioavailability Of Trace Elements (Tes)mentioning

confidence: 99%

A Review on the Fate of Nutrients and Enhancement of Energy Recovery from Rice Straw through Anaerobic Digestion

2020

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“…An unbalanced system might lead to a TE deficiency or a toxic accumulation. González-Suárez et al (2018) observed the TE deficiency in semi-continuous reactors during the digestion of maize straw. The authors operated two SCSTR reactors, a control reactor without metal addition and a reactor with TE supplementation, both with OLR varying from 0.5 to 2.0 gVS L −1 d −1 .…”

Section: Influence Of Reactor Type On Te Supplementationmentioning

confidence: 99%

Engineering of trace-element supplementation

Roussel¹,

Carliell-Marquet²,

Braga³

et al. 2019

Trace Elements in Anaerobic Biotechnologies

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Anaerobic digestion industries need to achieve higher performance and strive harder to play a key role in the green future of the energy sector. The importance of trace elements (TE) in the welfare of anaerobic bioreactors must be taken into account by the stakeholder/user to achieve these objectives. However, the implementation of a TE strategy is often stopped by its complexity, a lack of resource and the economic reality of a full-scale operating plant. The aim of this chapter is to support the translation of academic research findings to the engineering and operating of fullscale plant. Management tools have been developed to help operator and stakeholder in their TE assessment of their anaerobic digestion (AD) plant and suggest potential strategies to overcome deficiency. It is essential to understand the key elements of the AD system when developing the TE strategy. Feedstock

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“…The total concentration of Fe, Ni and Co in the sludge sample was extracted by aqua regia digestion according to [15]. The concentration was measured using atomic absorption spectrometry (AAS, 130B-WFX).…”

Section: Fe Ni and Co Concentrationmentioning

confidence: 99%

“…Extractions were performed in triplicate (1 g wet sludge, based on TS) and the Fe, Ni and Co extracted after SE-step was measured using AAS according to [15]. The result of the analytical determination is provided in mg g -1 TS.…”

Section: Sequential Extractions (Se)mentioning

confidence: 99%

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Speciation of iron, nickel and cobalt in the anaerobic biodegradation of rice straw

González-Suárez

Reyes

Oliva-Merencio

et al. 2020

redin

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The bioavailability of Fe, Ni and Co and its impact on the mono-digestion of rice straw with addition of a natural nutrient source were assessed. The chemical forms and the degree of bioavailability of Fe, Ni and Co were investigated in two reactors during 311 days of experimentation at 37°C. The reactor (R2) was supplemented with 1 g/L of mineral once a week. The control reactor R1 was limited in mineral during the study. The greatest methane yield of 238 mL/g VS was obtained with mineral supply with an increment of 45% respect to reactor without metals (164 mL/g VS). The sequential extraction confirmed that 70, 88 and 75% of Fe, Ni and Co were mainly in bioavailable forms (interchangeable and carbonate), respectively, with mineral supply in R2. Fe and Co were mainly associated to the carbonate and oxidizable fractions (43% and 41% respectively), while the Ni concentrations were not detected during the experimentation. As a result, the methane yield in R2 increased by 45%, with a potential bioavailability (Ni ˃ Co ˃ Fe) higher compared to control reactor (Co ˃ Fe). Trace elements deficit in R1 result in the reduction of metal-binding forms until the end of experiment, with a negative impact on methanogenic community.

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Bioavailability and dosing strategies of mineral in anaerobic mono‐digestion of maize straw

Cited by 12 publications

References 24 publications

A Review on the Fate of Nutrients and Enhancement of Energy Recovery from Rice Straw through Anaerobic Digestion

A Review on the Fate of Nutrients and Enhancement of Energy Recovery from Rice Straw through Anaerobic Digestion

Engineering of trace-element supplementation

Speciation of iron, nickel and cobalt in the anaerobic biodegradation of rice straw

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