Nov 9, 2023 · Ti–6Al–4V (TC4) used in dentistry and orthopedics as implant biomaterial faces the risk of microbiologically influenced corrosion (MIC) owing to the residence of diverse oral microorganisms. Hereinto, Streptococcus mutans is a critical pathogenic microorganism that causes dental caries. This work investigated the corrosive effects of S. mutans on TC4 and functional gradient TC4/TC4-5Cu
Aug 1, 2023 · Antibiotic resistance ontology (ARO) was the main means to identify ARGs in sequence database. 4177 genset were assembled and annotated to get 1018 subtypes of ARGs during composting from all the samples. 53 subtypes of ARGs against 22 types of antibiotics were found in samples from all three treatments throughout the composting process.
Apr 15, 2021 · The highest abundances of resistance genes and intI1 were observed at high Cu levels (A2), indicating that Cu can increase the spreading of resistance genes through integrons. Network analysis revealed the co-occurrence of ARGs, MRGs, and intI1, and these genes potentially shared the same host bacteria.
The practice of utilizing animal manures on land is widespread in agriculture, but it has raised concerns about the possible spread of antibiotic resistance genes (ARGs) and the potential risk it poses to public health through food production. Fermentation bed culture is an effective circular agricu
Mar 1, 2016 · The relative abundance of antibiotic resistance genes increased in stored manure compared with fresh manure roughly fivefold. This study shows that antibiotic resistance genes are disseminated on Finnish production animal farms.
Feb 7, 2022 · Nanometer-thick passive films, which impart superior corrosion resistance to metals, are degraded in long-term service; they are also susceptible to chloride-induced localized attack. Here we show
May 2, 2023 · Anaerobic digestion of animal manure results in the production of renewable energy (biogas) and nutrient-rich biofertilizer. A further benefit of the technology is decreased greenhouse gas emissions that otherwise occur during manure storage. Since animal manure makes anaerobic digestion cost-efficient and further advance the technology for higher methane yields, it is of utmost importance to
Mar 10, 2024 · The integration of a microbial electrolysis cell (MEC) is an effective strategy for enhancing the efficiency and stability of an anaerobic digestion (AD) system for energy recovery from waste-activated sludge (WAS). Typically, electrodes are arranged as separate components, potentially disrupting mixing and complicating the reactor configuration, posing challenges for the scaling up of AD-MEC
Sep 16, 2022 · The intensive use of antibiotics in the veterinary sector, linked to the application of manure-derived amendments in agriculture, translates into increased environmental levels of chemical residues, AR bacteria (ARB) and antibiotic resistance genes (ARG).
Most corrosion damage occurs in poorly drained areas that remain damp and dirty, e.g. in overlapped joints, on spot-welds and in crevices generally, and on moving parts, e.g. hinges, bed-chains, feed mechanisms, vanes, and cutters. Corrosion can be much reduced by regular cleaning and good storage.
Feb 10, 2022 · The importance of this finding is very high given that some of these microorganisms are characterized by their ability to cause disease in animals and humans, their resistance to antibiotics, and their environmental versatility.
Apr 3, 2020 · Alloy 22 is an extremely corrosion resistant metal alloy, so any environment that could corrode Alloy 22 would also easily penetrate the SS structures within the canister and allow the corrosive
May 1, 2023 · The long-term corrosion resistance test evidenced that the healed composite coating has effective barrier performance and long-term corrosion resistance, and the low-frequency impedance was still above 10 8 Ω·cm 2 after 50 days of immersion. Corrosion inhibitors and disulfide bonds jointly contribute to effective corrosion resistance by
Mar 8, 2023 · Livestock manure is a major carrier that stores and transmits antibiotic resistance genes (ARGs). The aim of this study was to identify the crucial environmental factors that result in the change in relative abundance of ARGs and MGEs to explore effective to reduce the occurrence of ARGs.
Jul 27, 2023 · Traditional cow manure composting equipment often lacks ventilation, heating, and real-time monitoring and adjustment capabilities, hindering manure maturation and proper utilization of compost, moisture reduction, and optimal environmental conditions for microbial activity. To address these limitations, we optimized and redesigned the structure and control elements of conventional composting