Trace element supplementation as a management tool for anaerobic digester operation: benefits and risks

Roussel, Jimmy; Fermoso, Fernando G.; Collins, Gavin; Hullebusch, Eric van; Esposito, Giovanni; Mucha, Ana P.

doi:10.2166/9781780409429

Cited by 5 publications

(4 citation statements)

References 16 publications

(17 reference statements)

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“…Therefore, enhancing the syntrophism by triggering a direct interspecies electron transfer (DIET) with a conductor or by increasing the aggregation with flocculation could be a solution. Ferric could play more roles as a flexible management tool [ 41 ]. The prediction of biogas production based on a better understanding of biochemical kinetics would allow for better food processing wastewater treatment to be established to decrease pollutants and increase energy recovery.…”

Section: Discussionmentioning

confidence: 99%

Prediction of the Long-Term Effect of Iron on Methane Yield in an Anaerobic Membrane Bioreactor Using Bayesian Network Meta-Analysis

Liang

Nilusha

et al. 2021

Membranes

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A method for predicting the long-term effects of ferric on methane production was developed in an anaerobic membrane bioreactor treating food processing wastewater to provide management tools for maximizing methane recovery using ferric based on a batch test. The results demonstrated the accuracy of the predictions for both batch and long-term continuous operations using a Bayesian network meta-analysis based on the Gompertz model. The prediction bias of methane production for batch and continuous operations was minimized, from 11~19% to less than 0.5%. A biochemical methane potential-based Bayesian network meta-analysis suggested a maximum 2.55% ± 0.42% enhancement for Fe2.25. An anaerobic membrane bioreactor improved the methane yield by 2.27% and loading rate by 4.57% for Fe2.25, operating in the sequenced batch mode. The method allowed for a predictable methane yield enhancement based on the biochemical methane potential. Ferric enhanced the biochemical methane potential in batch tests and the methane yield in a continuously operated reactor by a maximum of 8.20% and 7.61% for Fe2.25, respectively. Copper demonstrated a higher methane (18.91%) and sludge yield (17.22%) in batch but faded in the continuous operation (0.32% of methane yield). The enhancement was primarily due to changing the kinetic patterns for the last period, i.e., increasing the second methane production peak (k71), bringing forward the second peak (λ7, λ8), and prolonging the second period (k62). The dual exponential function demonstrated a better fit in the last three stages (after the first peak), which implied that syntrophic methanogenesis with a ferric shuttle played a primary role in the last three methane production periods, in which long-term effects were sustained, as the Bayesian network meta-analysis predicted.

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Section: Discussionmentioning

confidence: 99%

Prediction of the Long-Term Effect of Iron on Methane Yield in an Anaerobic Membrane Bioreactor Using Bayesian Network Meta-Analysis

Liang

Nilusha

et al. 2021

Membranes

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“…Trace element dosing has a significant impact on anaerobic mixed cultures and in industrial production of chemicals and products (Roussel et al, 2018). A varying dosing strategy for selenium or tungsten can modulate the production of alcohols at controlled pH conditions at larger scale.…”

Section: Practical Applicationsmentioning

confidence: 99%

Biovalorisation of liquid and gaseous effluents of oil refinery and petrochemical industry

Chakraborty¹

2021

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The simultaneous removal of phenol and selenite from synthetic wastewater was investigated by adopting two different co-culturing techniques using the fungus Phanerochaete chrysosporium and the bacterium Delftia lacustris. Separately grown biomass of the fungus and the bacterium (suspended co-culture) was incubated with different concentrations of phenol (0-1200 mg/L) and selenite (10 mg/L). The selenite ions were biologically reduced to extracellular Se(0) nanoparticles (3.58 nm diameter) with the simultaneous degradation of up to 800 mg/L of phenol. Upon growing the fungus and the bacterium together using an attached growth co-culture, the bacterium grew as a biofilm onto the fungus. The extracellularly produced Se(0) in the attached growth co-culture had a minimum diameter of 58.5 nm. This co-culture was able to degrade completely 50 mg/L phenol, but was completely inhibited at a phenol concentration of 200 mg/L.

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“…In addition to that, Ni is an essential component of the low molecular weight coenzyme F430 which uses two coenzymes -methyl thio-ether-methyl-coenzyme M and the thiol coenzyme B -as substrates for the production of methane in all methanogens (Chen et al, 2016). Hence, a stimulatory effect can be more easily observed when added in appropriate levels (Roussel et al, 2018).…”

Section: Effect Of Nickel Spiking On Ph Cod Vfa and Ch4 Developmentmentioning

confidence: 99%

“…Carbon, Oxygen, Hydrogen, Nitrogen, Sulfur) and microelements (e.g. Cobalt, Copper, Molybdenum, Selenium, Nickel, Zinc, Tungsten) (Roussel et al, 2018). The knowledge of macro-elements content into the feedstock is crucial in order to avoid common operational problems related to e.g.…”

Section: Introductionmentioning

confidence: 99%

Nickel spiking to improve the methane yield of sewage sludge

Tsapekos

Alvarado-Morales

Tong

et al. 2018

Bioresource Technology

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The presence of micro-nutrients can be stimulatory for the anaerobic digestion (AD) of hardly degradable wastes and thus, improve process performance. Among the essential trace elements, nickel is involved in multiple important enzymes necessary for efficient AD. The present study investigates the effect of nickel spiked sewage sludge on batch and continuous mode operation. Metal spiking was conducted in the form of nanoparticles (Ni-NPs) and salt (NiCl2•6H2O). Results from batch assays showed that 5 mgNi-Salt/kgVS in the presence of Nitrilotriacetic acid (NTA) enhanced the methane yield by ∼10% compared to the untreated sample. The impact of Ni-NPs in the AD process was also positive, but slightly lower compared to the effect of NiCl2•6H2O. The stimulatory impact of Ni was also revealed in continuously fed digester boosting the methane yield by ∼8%. Overall, the improved methane production indicated that methanogenic archaea were favoured by the simultaneous supplementation of Ni and NTA.

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Trace element supplementation as a management tool for anaerobic digester operation: benefits and risks

Cited by 5 publications

References 16 publications

Prediction of the Long-Term Effect of Iron on Methane Yield in an Anaerobic Membrane Bioreactor Using Bayesian Network Meta-Analysis

Prediction of the Long-Term Effect of Iron on Methane Yield in an Anaerobic Membrane Bioreactor Using Bayesian Network Meta-Analysis

Biovalorisation of liquid and gaseous effluents of oil refinery and petrochemical industry

Nickel spiking to improve the methane yield of sewage sludge

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