Potential of Duckweed for Swine Wastewater Nutrient removal and Biomass Valorisation through Anaerobic Co-digestion

Pena, Luis; Oliveira, Margarida; Fragoso, Rita; Duarte, Élcio Roberto

doi:10.13044/j.sdewes.d5.0137

Cited by 15 publications

(3 citation statements)

References 30 publications

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“…One option for managing this excess generated biomass in wastewater treatment could be anaerobic digestion or co-digestion Koyama et al, 2014;Pena et al, 2017;Ren et al, 2018;Yadav et al, 2017). Thus, macrophytes are generally rich in lignocellulosic materials, proteins, lipids, bers, and starch, making them a non-agricultural plant source with potential for sustainable biofuel production (Farrell & Gopal, 2008;Vassilev et al, 2015;Verma & Suthar, 2015).…”

Section: Introductionmentioning

confidence: 99%

Anaerobic Digestion of Macrophytes (Lemna Minor, Spirodela intermedia, Spirodela Polyrhiza and Wolffia Columbiana) And Anaerobic Sludge From Uasb Reactor: Effect of I/S Ratio (Inoculum/substrate) and Temperature

Hoyos,

Júnior,

Silva

et al. 2023

Preprint

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The present study aimed to explore floating macrophytes biogas and methane production potential (Lemna minor, Wolffia columbiana, Spirodela polyrhiza, and Spirodela intermedia) through the digestion process using anaerobic sludge from a UASB reactor as inoculum. Substrate (macrophytes) and inoculum (anaerobic sludge) came from domestic wastewater treatment. Two exploratory trials were conducted at different operating conditions to determine their influence on biogas and methane production. The assays were carried out using biodigesters with a volume of 50 liters and operated in batches, using macrophyte in nature. The experiments were carried out in triplicates for blank (anaerobic sludge) and different I/S ratios (inoculum/substrate). In Test 1, who evaluated four I/S ratios (0.5, 1.0, 1.5, and 2.0), biodigesters operation occurred under winter temperature conditions (mean 18±2.4°C) for 66 days. Test 2 evaluated the effect of temperature on biogas and methane production in the biodigesters. This experiment maintained the same I/S ratios of Test 1, but at summer temperature (26.6±1.1°C), and the duration of the batches was 37 days. The results obtained in the operational conditions tested in this work indicated that the biomass of macrophytes contributed positively to the increase in biogas and methane production. The highest yields (YCH4) achieved in winter and summer conditions were for I/S=2.0 with 184 NmL CH4/gVS and for I/S=1.0 with 323.3 NmL CH4/gVS, respectively. It evidenced that biogas and methane production varied in function of the operational parameter I/S that determines the amount of substrate fed in the biodigesters and the test application temperature.

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Section: Introductionmentioning

confidence: 99%

Anaerobic Digestion of Macrophytes (Lemna Minor, Spirodela intermedia, Spirodela Polyrhiza and Wolffia Columbiana) And Anaerobic Sludge From Uasb Reactor: Effect of I/S Ratio (Inoculum/substrate) and Temperature

Hoyos,

Júnior,

Silva

et al. 2023

Preprint

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“…The plants considered in this study are Lemna minor L. and Spirodela polyrhiza, which belong to the family Lemnaceaethe world's smallest angiosperms (Basiglini et al 2018). Because of the ease with which they can be cultivated, their rapid growth rate, and the wide range of their possible uses, they are commonly used in biotechnological processes (Iatrou et al 2015;Pena et al 2017;Tang et al 2017;Ma et al 2018). Previous studies have explored their application in wastewater treatment (Zhao et al 2015;Bokhari et al 2016;Tang et al 2017;); biomass generation (Gaur and Suthar 2017), which can be used in the production of biogas (Toyama et al 2018), ethanol (Cui and Cheng 2015), and liquid fuel (Xu et al 2018); or as a source of nutrients for humans and animals (Appenroth et al 2017;Chakrabarti et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Improving biorefinery sustainability and profitability by cultivating aquatic plants on ozonized distillery effluents

Dziugan

Romanowska-Duda

Piotrowski

et al. 2022

BioRes

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Industrial production of biogas offers a way to manage distillery leachate. The waste is usually subjected to anaerobic digestion for producing biogas. However, the effluent from anaerobic processes has high chemical oxygen demand (COD) and is harmful to the environment. An effective method of lowering COD is ozonation. Effluent from biogas plants after ozonation has the potential for use in breeding grounds for plants of the Lemnaceae family. Thus, they can provide a valuable additional source of biomass for the production of bioethanol. Lemna minor L. and Spirodela polyrhiza cultures were grown in media with the addition of 2.5% PFE, which had been treated by ozonation for between 6 and 50 min. Using ozonated effluent was an effective cultivation technique in all variants. The analyzed parameters were plant growth, chlorophyll index, fresh plant weight and photosynthetic traits (net photosynthesis, stomatal conductance, transpiration and concentration of intercellular CO2). The best growth of Lemna minor L. was observed in the media with PFE treated for 12 min. Similar effects were obtained for S. polyrhiza, with ozone treatment for 12 and 25 min. The results show the potential of using ozone-treated post-fermentation leachate as a supplement in culture media.

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“…Many biomasses have been investigated for the energy conversion by means of the anaerobic digestion. Karagiannidis and Perkoulidis [4] analysed the energy recovery from the organic fraction of municipal solid wastes, while Pena et al [5] investigated biogas production by means of swine wastewater digestion. Hadin and Eriksson [6] employed horse manure as feedstock for the anaerobic digestion and its methane potential was estimated.…”

Section: Introductionmentioning

confidence: 99%

Energy Recovery of the Biomass from Livestock Farms in Italy: The Case of Modena Province

Milani¹,

Montorsi²

2018

J. sustain. dev. energy water environ. syst.

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The overall energy conversion efficiency of the waste-to-energy technologies is strongly affected by the distance of the biomass supply and the rate available during the year. Therefore, a simulation tool for the evaluation of the main outputs of a power plant for the wastes exploitation is a useful instrument for investigating the best trade-off between the plant size and the biomass supply. Nevertheless, it usually involves a large number of data and an extensive training and expertise. This paper focuses on the development of a numerical tool for the comparison of different waste-to-energy technologies and thus supporting the selection of the best exploitation strategy based on the data usually accessible to administrations. The numerical approach employs validated numerical models for the considered biomass exploitation technologies and its capabilities are demonstrated by simulating a reference case: the energy recovery from manure of different livestock farms in the province of Modena (Italy). The electric and thermal power production from the manure available in the considered territory is estimated and the produced electric energy is balanced with the energy requirements of the local animal farms. The remaining amount of wastes that has to be disposed is also calculated and compared with the initial input to the systems. Finally, different strategies for distributed and centralized exploitation of the manure are investigated and the related plant size and production of electric and thermal energy are evaluated. The proposed approach and the developed numerical tool prove to be useful instruments for decision makers and can help the efficient exploitation of the biomasses available in a region.

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Potential of Duckweed for Swine Wastewater Nutrient removal and Biomass Valorisation through Anaerobic Co-digestion

Cited by 15 publications

References 30 publications

Anaerobic Digestion of Macrophytes (Lemna Minor, Spirodela intermedia, Spirodela Polyrhiza and Wolffia Columbiana) And Anaerobic Sludge From Uasb Reactor: Effect of I/S Ratio (Inoculum/substrate) and Temperature

Anaerobic Digestion of Macrophytes (Lemna Minor, Spirodela intermedia, Spirodela Polyrhiza and Wolffia Columbiana) And Anaerobic Sludge From Uasb Reactor: Effect of I/S Ratio (Inoculum/substrate) and Temperature

Improving biorefinery sustainability and profitability by cultivating aquatic plants on ozonized distillery effluents

Energy Recovery of the Biomass from Livestock Farms in Italy: The Case of Modena Province

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