The Antibiotics Degradation and Its Mechanisms during the Livestock Manure Anaerobic Digestion

Zubair, Muhammad Sulaiman; Li, Zhaojun; Zhu, Rongsheng; Wang, Jiancai; Liu, Xinghua; Liu, Xiayan

doi:10.3390/molecules28104090

Cited by 11 publications

(3 citation statements)

References 65 publications

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“…In a 2005 study [37], it was found that compaction and covering of manure with foil allows N and K to be retained in the manure heap, providing agronomic benefits. In addition, there are scientific reports that the methane fermentation process allows for a significant reduction in the negative impact of antibiotics present in manure on the soil biocenosis [141,142]. Applying digestate as a crop fertilizer is the most economical option; this approach allows for using the digestate's nutrients and reducing chemical fertilizer costs [143].…”

Section: Discussionmentioning

confidence: 99%

The Impact of Manure Use for Energy Purposes on the Economic Balance of a Dairy Farm

Mazurkiewicz

2023

Energies

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The use of methane fermentation in mesophilic conditions for the energy use of cow manure and additional co-substrates from the farm can bring a small dairy farm (140 dairy cows) financial benefits of up to EUR 114,159 per year. Taking into account the need to pay for emissions calculated as carbon dioxide equivalent, this profit could be reduced to EUR 81,323 per year. With the traditional direct use of manure, this profit would drop by as much as 60% to the level of EUR 33,944 per year. Therefore, the introduction of fees for emissions may significantly burden current dairy farms. As has already been shown, just compacting and covering the manure (which costs approx. EUR 2000 per year for 140 cows) would give almost twice as much profit—EUR 64,509 per year. Although an investment in a small biogas plant with a cogeneration unit on a family dairy farm may have a payback period of less than 6.5 years and a return of capital employed of 16%, most small farms in the world will not be able to afford its construction without external subsidies. At the same time, it would make it possible to reduce emissions by almost 270 times—from 41,460 to 154 tons of CO2eq per year—and the possibility of preserving valuable nutrients and minerals and supporting soil properties in the digestate. Therefore, it seems necessary for Europe to introduce a support system for small- and medium-sized farms with this type of investment in the near future in a much larger form than it has been so far.

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Section: Discussionmentioning

confidence: 99%

The Impact of Manure Use for Energy Purposes on the Economic Balance of a Dairy Farm

Mazurkiewicz

2023

Energies

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“…These technologies are not specifically designed for the removing of ARB and ARGs. Anaerobic digestion and hightemperature fermentation are widely used techniques in large-scale farms [24][25][26]. In the present dairy farm, the anaerobic digestion process and high-temperature fermentation process reduced the relative abundances of ARGs in wastewater and manure by 33.6% and 29.3%, respectively.…”

Section: Args Removal Efficiency Of Current Livestock Wastewater and ...mentioning

confidence: 94%

Identification and Distribution of Antibiotic Resistance Genes and Antibiotic Resistance Bacteria in the Feces Treatment Process: A Case Study in a Dairy Farm, China

Wang,

Gao,

Zheng

et al. 2024

Water

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The overuse of antibiotics has resulted in the prevalence of antibiotic resistance genes (ARGs) and antibiotic resistance bacteria (ARB) in the environment. High-density livestock farming is one of the major industries for antibiotic overuse. In this study, we sampled wastewater and manure at different stages of the feces treatment process from a dairy farm, as well as the soil in the farmland where the treated wastewater was being used for irrigation purpose. High-throughput Illumina sequencing was used to analyze the profiles of bacteria communities and ARGs. The results showed that the main ARG types were multidrug, aminoglycoside, glycopeptide, and tetracycline resistance genes, and Actinobacteria, Proteobacteria and Firmicutes were the main host bacteria phyla of these ARGs. The genus Nocardioides sp. and Ornithinimicrobium sp. were closely associated with the ARGs in the investigated samples. The relative abundances of ARGs in wastewater and manure were reduced by 68.5% and 62.1%, respectively, by the existing feces treatment process. Anaerobic fermentation and high-temperature fermentation were the most efficient treatment steps; the relative abundances of ARGs were reduced by 29.3% and 33.6% in the treated wastewater and manure, respectively. Irrigation with the treated wastewater significantly increased the abundance and diversity of ARGs and ARB in the surface soil of the farmland. The residual ARGs were found to transit through vertical gene transfer (VGT) and horizontal gene transfer (HGT) in soil. Therefore, the direct application of this inadequately treated wastewater and/or manure could risk spreading ARGs into the environment, and potentially impact human health. In order to effectively restrain the spread of ARGs, it is necessary to modify the wastewater and manure treatment processes and improve the regulations and guidelines of applying treated wastewater for irrigation.

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“…Given that methane-producing archaea lack D-amino acids, β-lactam antibiotics effectively target bacteria without inhibiting methane-producing archaea. It is worth mentioning that there have been many studies showing that microbial reactors can enhance the breakdown of antibiotics in aquatic environments, and the degradation rate of amoxicillin can reach more than 90% [29,30], which makes the negative impact on the environment caused by the addition of antibiotics will be greatly reduced or even eliminated. Consequently, a thoughtprovoking question arises regarding its ability to address the issue of interference from miscellaneous bacteria within the methanogenic microbial system based on the fact that it can inhibit miscellaneous bacteria without inhibiting methanogens.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the Startup Rate of Microbial Methanogenic Systems through the Synergy of β-lactam Antibiotics and Electrolytic Cells

Zhe,

Cheng,

Cheng

et al. 2024

Microorganisms

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The slow startup and suboptimal efficiency of microbial carbon sequestration and methane-production systems have not been fully resolved despite their contribution to sustainable energy production and the reduction of greenhouse gas emissions. These systems often grapple with persistent hurdles, including interference from miscellaneous bacteria and the slow enrichment of methanogens. To address these issues, this paper examines the synergistic effect of coupling β-lactam antibiotics with an electrolytic cell on the methanogenic process. The results indicated that β-lactam antibiotics exhibited inhibitory effects on Campylobacteria and Alphaproteobacteria (two types of miscellaneous bacteria), reducing their relative abundance by 53.03% and 87.78%, respectively. Nevertheless, it also resulted in a decrease in hydrogenogens and hindered the CO2 reduction pathway. When coupled with an electrolytic cell, sufficient electrons were supplied for CO2 reduction to compensate for the hydrogen deficiency, effectively mitigating the side effects of antibiotics. Consequently, a substantial improvement in methane production was observed, reaching 0.57 mL·L−1·d−1, exemplifying a remarkable 6.3-fold increase over the control group. This discovery reinforces the efficiency of methanogen enrichment and enhances methane-production levels.

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The Antibiotics Degradation and Its Mechanisms during the Livestock Manure Anaerobic Digestion

Cited by 11 publications

References 65 publications

The Impact of Manure Use for Energy Purposes on the Economic Balance of a Dairy Farm

The Impact of Manure Use for Energy Purposes on the Economic Balance of a Dairy Farm

Identification and Distribution of Antibiotic Resistance Genes and Antibiotic Resistance Bacteria in the Feces Treatment Process: A Case Study in a Dairy Farm, China

Enhancing the Startup Rate of Microbial Methanogenic Systems through the Synergy of β-lactam Antibiotics and Electrolytic Cells

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