Composting is an effective and necessary modality in the recycling of agricultural wastes such as livestock manure, furfural, and straw. However, the risks of heavy metals (HMs) and antibiotic resistance genes (ARGs) during industrial-scale composting process have not been adequately assessed, especially with the addition of bacterial agents.
Feb 21, 2024 · Proper composting treatment of poultry manure waste is recommended before its use as a fertilizer. This involves many bioprocesses driven by microorganisms. Therefore, it is important to understand microbial mechanisms behind these bioprocesses in manure composting systems. Many efforts have been made to study the microbial community structure and diversity in these systems using high
May 7, 2019 · These processes are already used by many commercial farms, which together help recycle about half the global supply of manure. But they are costly for small family farms, which supply most food in parts of Asia, sub-Saharan Africa, and Latin America. The researchers hope their map will encourage countries, including India, Brazil, China, and
May 3, 2023 · A global meta-analysis of greenhouse gas emissions and carbon and nitrogen losses during livestock manure composting: Influencing factors and mitigation strategies. Yan Liu Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Science, China Agricultural University, Beijing 100193
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Apr 1, 2020 · E-mail: chunyanli@neau.edu.cn; ayousyf@yahoo.com. Key words: manure composting, cold-adapted microorganisms, biochar, low-temperature. 1. This review investigates the signi cant challenges of the
Nioex Systems Inc. acquired the rights to the BIOvator® products in October 2008 to be their flagship product in their pursuit to provide environmentally and socially acceptable solutions to the organic waste industries. Today Nioex continues to R&D and develop the product. During the past number of years, a variety of In tank composter
May 13, 2024 · Abstract. Nitrous oxide (N 2 O) emissions from livestock manure contribute significantly to the growth of atmospheric N 2 O, a powerful greenhouse gas and dominant ozone-depleting substance. Here, we estimate global N 2 O emissions from livestock manure during 1890–2020 using the tier 2 approach of the 2019 Refinement to the 2006 IPCC Guidelines.
Mar 1, 2024 · To this end, ecoenzymatic stoichiometry, enzyme vector modeling, and statistical analysis were employed to explore the impact of exogenous ore improver on nutrient changes throughout the livestock composting process. The total phosphorus increased from 12.86 to 18.72 g kg -1, accompanied by a marked neutralized pH with ore improver, resulting
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].
Apr 13, 2024 · Biochar is difficult to make pellets on its own. The pelleting of biochar mixed with livestock manure compost could have the following advantages: (1) use compost as a binder, (2) reduce the moisture content of compost for pelleting by simply mixing without drying, and (3) promote the application of biochar for carbon sequestration by simultaneous application with agricultural machinery for
Aug 1, 2023 · This study deepens the understanding of organic matter conversion and microbial community metabolic functions when mature compost is used for livestock manure composting and provides a promising technology for livestock manure composting.
Livestock manure has become one of the main causes of non-point source environmental pollution due to continuous expansion of livestock and poultry breeding industry (Sun et al., 2012). Correct treatment of livestock and poultry manures is thus required, which could be achieved through composting.
After five years of operation, Lenz Enterprises has been a model commercial compost facility, managing over 50,000 tons per year of challenging feedstocks with zero odor complaints from the local community. Industrial compost systems generally manage a comparatively narrow range of feedstock materials. Examples include: fish waste, grape pumace
Feb 15, 2018 · A total of 109 ARGs were detected in the manure and compost samples, thereby demonstrating that both are important ARG reservoirs. The diversity and abundance of ARGs were significantly higher in chicken and pig manure than bovine manure, but industrial composting was more efficient at reducing the ARGs in chicken manure than pig and bovine manure.