enhanced corrosion resistance industrial composting equipment livestock manure

A critical review on livestock manure biorefinery

Jan 1, 2021 · However, the composting of livestock manure also has some disadvantages which could restrict the industrialization of composting technology, including the loss of nitrogen (N) during the composting process, the high bio-availability of heavy metals, the low humus of organic matter, the residue of antibiotics and the GHGs emissions [132, 133].

enhanced corrosion resistance Food waste compost tank

Oct 15, 2023 · During composting, pH is a crucial indicator of microbial activity and population composition [51].The variation in pH values during composting is also shown in Fig. 1.At the start of the composting process (Day 0), the pH of BPA pile mixture was 4.3, known to be due to food waste acidification, which produces organic acids as well as some volatile acids of low-molecular-weight

Enhanced control of sulfonamide resistance genes and host

Apr 15, 2021 · In another composting experiment conducted by Chang et al. (2019a), it has been reported that SRGs (sul1 and sul2) were overwhelmingly increased from 1.2 × 10 8 to 1.2 × 10 11 copies per gram of dry compost. In chicken manure composting, the absolute abundance of several ARGs (e.g., tetQ, cmlA, and floR) were significantly increased in some

Elimination of the risks of colistin resistance gene (mcr-1

In total, 16 manure samples were found to be mcr-1 positive, with a detection frequency of 31% in 51 samples. The numbers of mcr-1 gene copies in 12 positive manure samples with a high prevalence of mcr-1 were 10 7 -10 9 copies/g dry weight. During composting, >90% of mcr-1 in the manure was eliminated in 15 days at high temperature (44-65 °C

Fate of Antibiotics and Antibiotic Resistance during

May 31, 2015 · Fate of Antibiotics and Antibiotic Resistance during Digestion and Composting: A Review. al., 2014). The presence of antibiotics and antibiotic resistance genes (ARGs) in cattle manure and swine manure has also been well documented. For example, Chen et al. (2007) reported up to 3.69 and 5.00 to 9.22 log copies g-1 of erythromycin resistance

Preparation of high-temperature and low-temperature-resistant

Apr 2, 2024 · We used microbiology and molecular biology techniques to screen out high-temperature and low-temperature-resistant saprobiotics for compost and prepared a compound fermentation bacteria agent to rapidly ferment cattle manure into high-quality organic fertilizer in low-temperature season. Conventional composting and high-throughput techniques were used to analyze the changes of physical and

Additive quality influences the reservoir of antibiotic

Sep 1, 2021 · Aerobic composting is commonly used to dispose livestock manure and is an efficient way to reduce antibiotic resistance genes (ARGs). Here, the effects of different quality substrates on the fate of ARGs were assessed during manure composting. Results showed that the total relative abundances of ARG

Frontiers | Livestock Manure Type Affects Microbial Community

Mar 21, 2021 · While the Shannon diversity varied between manure compost types, the diversity of sheep and cattle manure composts were significantly higher compared to pig and chicken manure composts at both composting phases (bacteria: F 1,23 = 12.5, P = 0.002; fungi: F 1,23 = 6.07, P = 0.022, Figures 2A,B).

Livestock Manure and the Impacts on Soil Health: A Review - MDPI

Oct 25, 2020 · Soil health is the capacity of the soil to provide an environment for optimum growth and development of plants, while also ensuring the health of animals and humans. Animal manure has been used for centuries as a source of nutrients in agriculture. However, many other soil properties that contribute to soil health are affected when manure is applied. Bulk density, aggregate stability

Biochar mitigates the biotoxicity of heavy metals in

Aug 14, 2022 · The addition of biochar could mitigate the bioavailability of heavy metals during livestock manure composting. However, the main action mechanism of biochar, such as how it worked, was ambiguous.

Dynamics of microbial functional guilds involved in the

Feb 21, 2024 · The whole manure composting process can be divided into three reaction phases according to the temperature profile. At the beginning of manure composting, it was the mesophilic stage from day 4 to 20 (Fig. S1a). The temperature at the day 20 was above 50 °C, indicating that the manure composting enters to the thermophilic phase (Fig. S1a).

Industrial-scale aerobic composting of livestock manures with

Dec 1, 2022 · Industrial-scale aerobic composting of livestock manures with the addition of biochar: Variation of bacterial community and antibiotic resistance genes caused by various composting stages

Effect of bioaugmentation on tetracyclines influenced chicken

Apr 1, 2023 · Composting livestock manure can efficiently degrade the antibiotic residue, releasing environmental and human health risks. Bioaugmentation further improves composting efficiency (Zhao et al., 2022b). Composting here serves as a waste recycling approach and a pollutants remediation technique.

Microbial mechanisms involved in negative effects of

May 1, 2024 · This study is expected to improve the understanding of how contaminated livestock manure can be effectively utilized. 2. Materials and 2.1. Composting process. Fresh dairy cattle manure and wheat straw were obtained from Jinyindao Farm in Daxing, Beijing and wheat fields in Lianyungang, Jiangsu Province, respectively.

Development and Evaluation of Cow Dung Composting Equipment

Jul 27, 2023 · This study provides compelling evidence that the cow manure composting equipment proposed herein significantly enhances the efficiency of livestock manure composting while yielding high-quality organic fertilizer. Through our thorough analysis, we derive two key conclusions: