Relative evaluation of micronutrients (MN) and its respective nanoparticles (NPs) as additives for the enhanced methane generation

Juntupally, Sudharshan; Begum, Sameena; Allu, Sarat Kumar; Nakkasunchi, Shalini; Madugula, Mrudula; Anupoju, Gangagni Rao

doi:10.1016/j.biortech.2017.04.049

Cited by 46 publications

(18 citation statements)

References 19 publications

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“…Ambuchi et al 24 reported up to 23% increase in biogas yield by supplying 750 mg L −1 IONPs during AD of beet sugar industrial wastewater. Similarly, Juntupally et al 18 recorded about 23% enhancement in biogas yield under IONPs supplementation during AD of cattle manure. These findings signify that IONPs can be exploited for enhancement in microalgal biogas yield also.…”

Section: Introductionmentioning

confidence: 88%

“…Interestingly, nanoparticles are postulated for effective AD of various feedstock 18 . High surface to volume ratio of nanoparticles stimulates the metabolic reaction.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, by exciting the microorganisms’ activity, biogas production can be increased 9 . Especially, metal NPs (such as iron, nickel, and cobalt), which can serve as a micronutrient for anaerobic microorganisms, can be valuable 18 , 20 . Additionally, the iron nanomaterials have been observed in eliminating the inhibitory effects of sulfur and related hazardous compounds in the AD 21 , 22 .…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, the iron nanomaterials have been observed in eliminating the inhibitory effects of sulfur and related hazardous compounds in the AD 21 , 22 . In the past, several attempts were made to assess the effect of nZVI, Fe 3 O 4 NPs, nickel NPs, cobalt NPs on the AD of various substrates, including sewage sludge 9 , 18 . Note that the difference among NPs to escalate biogas production lies in its capability to transfer electrons.…”

Section: Introductionmentioning

confidence: 99%

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New insights on improved growth and biogas production potential of Chlorella pyrenoidosa through intermittent iron oxide nanoparticle supplementation

Rana

Bhushan

Prajapati

2020

Sci Rep

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In the present work, the effect of α-Fe 2 O 3 -nanoparticles (IONPs) supplementation at varying doses (0, 10, 20 and, 30 mg L −1 ) at the intermittent stage (after 12th day of growth period) was studied on the growth and biogas production potential of Chlorella pyrenoidosa . Significant enhancements in microalgae growth were observed with all the tested IONPs doses, the highest (2.94 ± 0.01 g L −1 ) being at 20 mg L −1 . Consequently, the composition of the biomass was also improved. Based on the precedent determinations, theoretical chemical oxygen demand (COD th ) as well as theoretical and stoichiometric methane potential (TMP, and SMP) were also estimated. The COD th , TMP, SMP values indicated IONPs efficacy for improving biogas productivity. Further, the biochemical methane potential (BMP) test was done for IONPs supplemented biomass. The BMP test revealed up to a 25.14% rise in biogas yield (605 mL g –1 VS fed ) with 22.4% enhanced methane content for 30 mg L −1 IONPs supplemented biomass over control. Overall, at 30 mg L −1 IONPs supplementation, the cumulative enhancements in biomass, biogas, and methane content proffered a net rise of 98.63% in biomethane potential (≈ 2.86 × 10 4 m 3 ha −1 year −1 ) compared to control. These findings reveal the potential of IONPs in improving microalgal biogas production.

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Section: Introductionmentioning

confidence: 88%

“…Interestingly, nanoparticles are postulated for effective AD of various feedstock 18 . High surface to volume ratio of nanoparticles stimulates the metabolic reaction.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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New insights on improved growth and biogas production potential of Chlorella pyrenoidosa through intermittent iron oxide nanoparticle supplementation

Rana

Bhushan

Prajapati

2020

Sci Rep

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“…The fact that many aquatic macrophytes are rich in micronutrients opens opportunities for further increasing the economic attractiveness of this input material. Undersupply with micronutrients, especially nickel, molybdenum, and cobalt, can be a reason for suboptimal biogas yields [47] and there is abundant research proving the positive effects on biogas production of adding micronutrients to the process [48][49][50][51][52]. Biogas plants operating without manure, i.e., on monofermentation of energy crops, require regular addition of micronutrients [53][54][55].…”

Section: Avenues For Further Researchmentioning

confidence: 99%

Using aquatic plant biomass from de-weeding in biogas processes—an economically viable option?

et al. 2018

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Background: Landscape maintenance in Germany today requires regular and extensive de-weeding of waterways, mostly to ensure water runoff and provide flood protection. The costs for this maintenance are high, and the harvested biomass goes to waste. Methods: We evaluated the economic feasibility of using water plant biomass as a substrate in biogas generation. We set up a plausible supply chain, used it to calculate the costs of using aquatic water biomass as a seasonal feedstock to generate biogas, and compared it against maize silage, a standard biogas substrate. We also calculated the costs of using the aquatic biomass mixed with straw silage.

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Steady state of semi-continuous anaerobic digestion of cattle manure under the stress of adding iron and titanium oxide nanoparticles

Farghali

Ahmed

Kotb

et al. 2021

J Mater Cycles Waste Manag

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Relative evaluation of micronutrients (MN) and its respective nanoparticles (NPs) as additives for the enhanced methane generation

Cited by 46 publications

References 19 publications

New insights on improved growth and biogas production potential of Chlorella pyrenoidosa through intermittent iron oxide nanoparticle supplementation

New insights on improved growth and biogas production potential of Chlorella pyrenoidosa through intermittent iron oxide nanoparticle supplementation

Using aquatic plant biomass from de-weeding in biogas processes—an economically viable option?

Steady state of semi-continuous anaerobic digestion of cattle manure under the stress of adding iron and titanium oxide nanoparticles

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