Manure anaerobic digestion effects and the role of pre- and post-treatments on veterinary antibiotics and antibiotic resistance genes removal efficiency

Gurmessa, Biyensa; Pedretti, Ester Foppa; Cocco, Stefania; Cardelli, Valeria; Corti, Giacomo

doi:10.1016/j.scitotenv.2020.137532

Cited by 122 publications

(40 citation statements)

References 155 publications

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“…This result shows that SMX can also be degraded in anaerobic conditions; SMX biodegradation has been found in previous works in effluents ( Patrolecco et al, 2018 ) and digestate-treated soil in aerobic conditions ( Rauseo et al, 2019 ). Recent works ( Wang et al, 2016 ; Gurmessa et al, 2020 ) report SMX to be removed mainly by biodegradation and that adsorption processes were negligible. Moreover, in AD experiments, in which the substrate was pig manure, SMX was removed with variable elimination rates from 0 to 100%, depending on specific process parameters, such as temperature and hydraulic retention time ( Gurmessa et al, 2020 ).…”

Section: Resultsmentioning

confidence: 99%

“…Recent works (Wang et al, 2016;Gurmessa et al, 2020) report SMX to be removed mainly by biodegradation and that adsorption processes were negligible. Moreover, in AD experiments, in which the substrate was pig manure, SMX was removed with variable elimination rates from 0 to 100%, depending on specific process parameters, such as temperature and hydraulic retention time (Gurmessa et al, 2020).…”

Section: Args and Smx Analysesmentioning

confidence: 99%

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Effects of Sulfamethoxazole on the Microbial Community Dynamics During the Anaerobic Digestion Process

et al. 2020

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Anaerobic digestion (AD) treatment of cattle manure and slurry makes it possible to produce biogas, a renewable and storable biofuel, as well as digestate, a residual organic matter that can be used to replace chemical fertilizers. On the other hand, the intense use of antibiotics (e.g., sulfamethoxazole) in animal husbandry practices is showing increasing negative impacts resulting from the release of still metabolically active molecules into agroecosystems. In the present study, cattle manure collected from an AD plant-feeding tank was used as feedstock for AD experiments in which some batches were spiked with 5 mg L −1 of sulfamethoxazole (SMX). Adding the antibiotic affected the microbial community dynamic; in particular, the efficiency of the acidogenic and acetogenic phases of the process corresponded to higher CH 4 and H 2 production than in the control. SMX was also degraded, and at the end of the experiment (69 days), just 20% of its initial concentration was found. The relative abundance (ARG/16S) of resistance genes sul1, sul2, and the proxy intI1 initially found in the ingestate decreased during the AD in both the spiked and control batches, suggesting that this process lowers the likelihood of antibiotic resistance genes spreading.

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Section: Resultsmentioning

confidence: 99%

Section: Args and Smx Analysesmentioning

confidence: 99%

Effects of Sulfamethoxazole on the Microbial Community Dynamics During the Anaerobic Digestion Process

et al. 2020

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“…Lignocellulosic streams can be efficiently pre-treated with acid and enzymatic methods, even if industrial scale application of these methods is still limited [ 4 ]. Temperature pre-treatment and temperature-phased advanced AD were lately studied to facilitate veterinary antibiotic degradation [ 121 ], that is characterized by a significant refractory fraction. In another work, chemical pre-treatment of onion waste was proposed in a packed bed reactor coupled with a UASB reactor to reduce VFA accumulation and improve biogas yield [ 122 ].…”

Section: Uasb Pre- and Post-treatmentmentioning

confidence: 99%

Up-Flow Anaerobic Sludge Blanket (UASB) Technology for Energy Recovery: A Review on State-of-the-Art and Recent Technological Advances

2020

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Up-flow anaerobic sludge blanket (UASB) reactor belongs to high-rate systems, able to perform anaerobic reaction at reduced hydraulic retention time, if compared to traditional digesters. In this review, the most recent advances in UASB reactor applications are critically summarized and discussed, with outline on the most critical aspects for further possible future developments. Beside traditional anaerobic treatment of soluble and biodegradable substrates, research is actually focusing on the treatment of refractory and slowly degradable matrices, thanks to an improved understanding of microbial community composition and reactor hydrodynamics, together with utilization of powerful modeling tools. Innovative approaches include the use of UASB reactor for nitrogen removal, as well as for hydrogen and volatile fatty acid production. Co-digestion of complementary substrates available in the same territory is being extensively studied to increase biogas yield and provide smooth continuous operations in a circular economy perspective. Particular importance is being given to decentralized treatment, able to provide electricity and heat to local users with possible integration with other renewable energies. Proper pre-treatment application increases biogas yield, while a successive post-treatment is needed to meet required effluent standards, also from a toxicological perspective. An increased full-scale application of UASB technology is desirable to achieve circular economy and sustainability scopes, with efficient biogas exploitation, fulfilling renewable energy targets and green-house gases emission reduction, in particular in tropical countries, where limited reactor heating is required.

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“…The primary remediation mechanisms of antibiotics involve adsorption, biodegradation, hydrolysis, and volatilization (Gurmessa et al 2020). Veterinary antibiotics like β-lactams, macrolides, tetracyclines, fluoroquinolones, and trimethoprim mainly follow the adsorption mechanism, whereas sulfonamides type antibiotics are generally removed along with the biodegradation mechanism (Li and Zhang 2010;Jia et al 2018;Sui et al 2018;Zhang and Li 2018).…”

Section: Transformationsmentioning

confidence: 99%

A Review of Veterinary Antibiotic Pollution in the Agro-Environment of Pakistan: Alarm Bells Are Ringing

Sardar¹

2021

IJAB

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Veterinary antibiotics (VAs) are widely used in Pakistan for growth enhancement, production, and in the prevention and treatment of infectious diseases in the livestock and poultry industry. Their emergence into the agro-environment began during the resource utilization of farmyard and poultry manure. However, these bioactive organic pollutants are non-degradable in the natural environment and can be uptaken by plants, eventually ending up in the human food chain. Despite the danger these antibiotics pose, unfortunately, it is an issue that still remains underreported, especially in Pakistan. As such, this review critically summarizes the current consumption, exposure pathways, strategies for controlling dissemination, and serious environmental concerns associated with VAs. Additionally, the fate of antibiotics in the dry arid climate of Pakistan is thoroughly explained along with the lack of monitoring and strict legislation in developing countries. It is reported that antibiotic consumption negatively impacts raw manure, hence suggestions such as limiting the consumption of antibiotics from the source, proper disposal of farmyard manure with effective technologies, and remediation techniques are introduced. Finally, the authors highlight the importance of farmer's education and awareness campaigns in the pollution control of antibiotics, as the problem can only be properly addressed with the cooperation of government agencies, companies, and involved stakeholders. © 2021 Friends Science Publishers

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Manure anaerobic digestion effects and the role of pre- and post-treatments on veterinary antibiotics and antibiotic resistance genes removal efficiency

Cited by 122 publications

References 155 publications

Effects of Sulfamethoxazole on the Microbial Community Dynamics During the Anaerobic Digestion Process

Effects of Sulfamethoxazole on the Microbial Community Dynamics During the Anaerobic Digestion Process

Up-Flow Anaerobic Sludge Blanket (UASB) Technology for Energy Recovery: A Review on State-of-the-Art and Recent Technological Advances

A Review of Veterinary Antibiotic Pollution in the Agro-Environment of Pakistan: Alarm Bells Are Ringing

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