Biomethane Potential of Sludges from a Brackish Water Fish Hatchery

Borso, Francesco da; Chiumenti, Alessandro; Fait, Giulio; Mainardis, Matia; Goi, Daniele

doi:10.3390/app11020552

Cited by 11 publications

(5 citation statements)

References 31 publications

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“…The methane content produced during the anaerobic digestion of acidic wastewater can be optimized by dilution with municipal wastewater [31]. Finally, Da Borso et al [32] studied the anaerobic digestion of brackish water fish sludge (salinity 12 g/L) and observed the highest biomethane potential of 564.2 NmL CH 4 /g VS.…”

Section: Discussionmentioning

confidence: 99%

“…Gao et al [26] Deep insights into the anaerobic co-digestion of waste activated sludge with concentrated leachate under different salinity stresses Guo et al [27] Research progress of high-salinity wastewater treatment technology Van Duc et al [28] Bioaugmentation with marine-derived microbial consortia in mesophilic anaerobic digestion for enhancing methane production under ammonium or salinity stress Alhraishawi and Aslan [29] Effect of salt content on biogas production and microbial activity Gagliano et al [30] Microbial community drivers in anaerobic granulation at high salinity Mazioti and Vyrides [31] Anaerobic digestion of high strength bilgewater with granular sludge: confronting salinity and investigating biomass adaptation Da Borso et al [32] Biomethane potential of sludges from a brackish water fish hatchery…”

Section: Authors Literaturementioning

confidence: 99%

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Salinity Inhibition in Thermophilic Anaerobic Digestion of Organic Waste

Zupančič¹,

Panjičko²,

Logar

et al. 2023

Applied Sciences

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Anaerobic digestion, despite its preferable use as a treatment for high organic matter polluted waste streams, is susceptible to inhibitors, salt included. Therefore, two different experiments were conducted to observe the responses of bacterial and archaeal communities to hypersaline environments. In the first experiment, salt was added gradually, while in the second experiment, salt was added rapidly (so-called salt shocks were performed). The results of the gradual addition of salt showed a recovery of methane production after the salt concentration decreased. The NaCl concentration of 28.2 g/L seems to be the limit between stable operation and occurrence inhibition. The specific biogas production varied between 0.490 and 0.562 m3/kgtCOD during the stepwise salt addition, depending on the salt concentration, while the maximal achieved COD removal was 79.8%. The results of the rapid salt addition showed good recovery of the bacterial community, while a reduction of salt-sensitive species was observed in the archaeal community. The trend of specific biogas production during rapid salt addition was stable with an average value of 0.590 m3/kgtCOD, and it was observed that higher concentrations of up to 39.4 g/L of NaCl were tolerated. The maximum COD removal achieved during rapid salt addition was 83.1%. In conclusion, certain bacterial and archaeal communities were well-adapted to the hypersaline environment and remained active during the anaerobic digestion of substrates with high salt concentration.

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Section: Discussionmentioning

confidence: 99%

Section: Authors Literaturementioning

confidence: 99%

Salinity Inhibition in Thermophilic Anaerobic Digestion of Organic Waste

Zupančič¹,

Panjičko²,

Logar

et al. 2023

Applied Sciences

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“…This category also includes fish industry waste, which was handled separately to the generic food industry waste due to the relatively large fish industries that exist in two of the Nordic countries (Iceland and Norway) and the distinct characteristics of fish waste compared to other types of food industry waste. For fish industry waste, this was calculated based on two types of fish waste, sludge from hatcheries [7] and ensiled waste from fish processing industries [8]. Waste from open-sea fish farming where not included because it is currently not captured but dispersed into the ocean.…”

Section: Food Industry Wastementioning

confidence: 99%

The current Nordic biogas and biofertilizer potential: An inventory of established feedstock and current technology

Lindfors¹,

Feiz²

2023

Biogas Research Center (BRC) Report

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Biogas solutions in the Nordics is undergoing rapid developments and the demand for biogas is ever increasing because of the Russian war on Ukraine and the transition to fossil free industry and transportation. Furthermore, with the introduction of several multi-national companies into the biogas sector in the Nordics and with more and more biomethane being traded across national borders, it becomes increasingly important to view biogas solutions in the Nordics as a whole and to go beyond the confines of each individual nation. Since the transition and the current energy crisis require a quick response, understanding what could be done with current technologies and established substrates is important to guide decision-making in the short-term. This study aims to do just that by presenting the current biogas potential for the Nordics, including Denmark, Finland, Iceland, Norway, and Sweden. The potential was estimated for eight categories: food waste, manure, food industry waste, sludge from wastewater treatment, landscaping waste, straw, agricultural residues, and crops with negligible indirect land use effects (such as ley crops and intermediary crops). Two categories were excluded due to a lack of appropriate estimation procedures and time to develop such procedures, and these were marine substrates and forest industry waste. Furthermore, several categories are somewhat incomplete due to lack of data on the availability of substrates and their biogas characteristics. These include, for example, crops grown on Ecological focus areas, excess ley silage, damaged crops, and certain types of food industries. The specifics of each category is further detailed in Section 2 of the report. In the report, the biogas potential includes the biomethane potential, the nutrient potential, and the carbon dioxide production potential, capturing all outputs of a biogas plant. The results of the potential study show that the current biomethane potential for the Nordics is about 39 TWh (140 PJ) per year when considering the included biomass categories in the short-term perspective. In relation to current production, realizing this potential would mean a roughly fourfold increase in yearly production, meaning that a significant unexploited potential remains. On the nutrient side, the biogas system in the Nordics would, given the realization of the estimated potential, be of roughly the same size as current mineral fertilizer use (about 75 percent for nitrogen and 160 percent for phosphorous). While this represents the management of a significant portion of nutrients used in agriculture, the potential to replace or reduce mineral fertilizer use through biogas expansion remains unexplored in this study since a significant portion of nutrients come from biomass that is already used as fertilizer (e.g., manure). Finally, on the carbon dioxide side, about 4.2 million tonnes of carbon dioxide would be produced, which could be either captured and stored or captured and utilized, thereby further increasing the positive environmental effects associated with biogas solutions. In conclusion, there remains a large unexploited biogas potential in the Nordics, even when only considering current technologies and established feedstock that could be realized in the short-term (the theoretical potential is much larger since many substrate categories are excluded and the potential is limited to established technologies). Such a realization would bring large increases to biomethane production but would also mean that a significant amount of nutrients would be recirculated through the biogas system. This means that the biogas system has a key role to play in increasing both the food and energy security in the Nordic countries, in addition to its many positive environmental effects.

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“…Finally, the cumulative biogas and methane yields (ml/g VS) were calculated by dividing the corrected amount of the cumulative gases (after subtracting the average amount of gas produced from the blank reactors) by the amount of VS used at the beginning of the tests. digestion tests (da Borso et al, 2021;Pearse et al, 2018). Each biodigester was shaken once a day and the volume of biogas was measured once a day.…”

Section: Biogas Measurements and Estimation Of Its Compositionmentioning

confidence: 99%

Evaluation of methane production from the anaerobic co-digestion of manure of guinea pig with lignocellulosic Andean residues

Quelal

Velázquez‐Martí

Chavez

et al. 2021

Environ Sci Pollut Res

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The objective of this research was to evaluate the anaerobic co-digestion of guinea pig manure (CY) with Andean agricultural residues such as amaranth (AM), quinoa (QU) and wheat (TR) in batch biodigesters under mesophilic conditions (37⁰C) for 40 days. As microbial inoculum, sewage treatment sludge was used in two inoculum/substrate ratios (ISR of 1 and 2). In terms of methane production, the best results occurred in the treatments that contained AM and QU as cosubstrate and an ISR of 2. Thus, the highest methane production occurred in the CY:AM biodigesters (25:75) and CY:QU (25:75) with 341.86 mlCH 4 /g VS and 341.05 mlCH 4 /g VS, respectively. On the other hand, the results showed that methane production with an ISR of 2 was more feasible for guinea pig waste, where the methane fraction of the biogas generated was in a range of 57 and 69%. The kinetics of methane production from these raw materials was studied using five kinetic models: modified Gompertz, logistic equation, transfer, cone, and Richards.The cone model was the one that best adjusted the experimental values with those observed with an r 2 of 0.999 and an RMSE of 1.16 mlCH 4 /g VS. Finally, the highest biodegradability was obtained in the CY-AM biodigesters (25:75) with 67.92%.

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Biomethane Potential of Sludges from a Brackish Water Fish Hatchery

Cited by 11 publications

References 31 publications

Salinity Inhibition in Thermophilic Anaerobic Digestion of Organic Waste

Salinity Inhibition in Thermophilic Anaerobic Digestion of Organic Waste

The current Nordic biogas and biofertilizer potential: An inventory of established feedstock and current technology

Evaluation of methane production from the anaerobic co-digestion of manure of guinea pig with lignocellulosic Andean residues

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