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相关概念视频

Bioremediation00:46

Bioremediation

Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
Environmental Applications of Microorganisms01:30

Environmental Applications of Microorganisms

Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
Soil Microbial Ecology01:29

Soil Microbial Ecology

Soil microbial ecology is defined by highly diverse, spatially structured communities that drive nutrient cycling, organic matter turnover, and overall ecosystem stability. Although a gram of soil can contain thousands of bacterial and archaeal taxa, the ecological processes they mediate are even more crucial for sustaining terrestrial life.Microhabitats and NichesSoil is a heterogeneous mixture of minerals, organic matter, water, and air. Microbes inhabit distinct microhabitats formed by...
Bioreactor Design and Operational System01:29

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Bioreactors are engineered vessels designed to cultivate microorganisms under controlled conditions for industrial bioprocessing. They maintain sterility and allow precise regulation of pH, temperature, oxygen, and nutrient levels to optimize microbial growth and metabolite production. Bioreactors range from small laboratory units of 1 liter to industrial systems holding up to 500,000 liters, though only about 75% of their volume is actively used for fermentation. The remaining headspace...
Bioreactor Controls-II01:18

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In aerobic fermentations, oxygen is vital for microbial growth and metabolite production. Since air comprises only about 20% oxygen and the gas is poorly soluble in water—just 9 ppm at 20°C—supplying sufficient oxygen becomes a critical challenge, especially in high-demand processes like yeast growth or citric acid production. Even a fully saturated broth may offer only a few seconds of oxygen availability.To address this, sterile or scrubbed air is introduced into the fermentor via a sparger...

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Continuously-stirred Anaerobic Digester to Convert Organic Wastes into Biogas: System Setup and Basic Operation
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电场辅助的有氧堆肥:从基本原则到应用

Tao Fu1, Huan Mi2, Chang Shen2

  • 1College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China.

Journal of environmental management
|May 15, 2025
PubMed
概括

电场辅助有氧堆肥 (EAC) 提高了有机废物处理中的氧气使用和温度. 本综述分析了EAC的进展,为高效,可扩展的堆肥策略提供了见解.

关键词:
有氧堆肥是一种有氧堆肥.生物修复是一种生物修复.电场辅助的电场辅助环境影响 环境影响优化战略的优化策略.有机固体废弃物 有机固体废弃物

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科学领域:

  • 环境科学 环境科学
  • 废物管理 废物管理
  • 生物技术是生物技术.

背景情况:

  • 传统的有氧化堆肥面临氧气利用和堆温度的限制.
  • 低氧气和温度阻碍有机固体废物的有效分解和堆肥成熟.
  • 解决这些局限性对于有效和富有资源的废物处理至关重要.

研究的目的:

  • 批判性地审查电场辅助有氧堆肥 (EAC) 原则,设计和优化方面的进展.
  • 分析EAC技术的环境效益和潜力.
  • 为克服挑战提供见解,并提高EAC的可扩展性.

主要方法:

  • 关于电场辅助有氧堆肥现有文献的审查.
  • 分析EAC对氧气利用和堆温度的影响.
  • 评估EAC的环境效益,包括堆肥成熟度,温室气体减少,重金属固定和抗生素风险控制.

主要成果:

  • 在有氧堆肥中,EAC有效地提高了氧气利用率,并提高了堆温度.
  • EAC 证明了显著的环境效益,改善了堆肥成熟度和减少排放.
  • 在固定重金属和控制堆肥中的抗生素风险方面,EAC显示出前景.

结论:

  • 电场辅助的有氧堆肥是一种有前途的技术,用于有机废物的资源处理.
  • 需要进一步的研究和优化来应对挑战,并提高EAC的可扩展性.
  • EAC提供了一条通往更经济高效,更环保的堆肥策略的道路.