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相关概念视频

Bioremediation00:46

Bioremediation

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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.
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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...
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Plasticizers01:31

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Water-reducers, or plasticizers, are chemical admixtures used in concrete to improve strength and workability. These additives reduce the water-cement ratio without compromising workability, lower the cement content while maintaining the same workability, or increase workability to assist concrete placement in inaccessible areas.
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相关实验视频

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Isolation of Native Soil Microorganisms with Potential for Breaking Down Biodegradable Plastic Mulch Films Used in Agriculture
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工业堆肥中的塑料投入和动态.

Stoyana Peneva1, Quynh Nhu Phan Le2, Davi R Munhoz3

  • 1Wessling GmbH, Am Umweltpark 1, Bochum, 44793, Germany; Institute for Crop Science and Resource Conservation (INRES) - Soil Science and Soil Ecology, University of Bonn, Nussallee 13, 53115 Bonn, Germany.

Waste management (New York, N.Y.)
|December 18, 2024
PubMed
概括

堆肥中的塑料污染是一个重大问题. 减少塑料垃圾的投入至关重要,以尽量减少农业和园艺土壤中的微塑料污染,确保更健康的生态系统.

关键词:
生物废弃物 生物废弃物堆肥化 堆肥化 堆肥化碎片化 碎片化灌用水灌用水的方法微塑料的污染 微塑料的污染

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相关实验视频

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科学领域:

  • 环境科学 环境科学
  • 土壤科学 土壤科学
  • 废物管理 废物管理

背景情况:

  • 堆肥是重要的土壤肥料,但由于垃圾处理不当,塑料污染,包括微塑料 (MiPs),越来越令人担忧.
  • 巨型塑料 (MaPs) 和微型塑料 (MiPs) 可以通过生物废物进入堆肥,影响土壤和潜在的植物健康.

研究的目的:

  • 在工业堆肥过程中量化生物废物中的巨型塑料 (MaP) 和微型塑料 (MiP) 度.
  • 确定最终堆肥产品中塑料污染的关键阶段和来源.

主要方法:

  • 德国四个地区的生物废弃物输入量化巨型塑料 (MaP).
  • 在五个堆肥阶段和灌水中测量了微塑料 (MiP) 度.
  • 分析的塑料类型,包括可生物降解塑料,以及颗粒大小.

主要成果:

  • 生物垃圾中的巨型塑料 (MaP) 度在0.36至1.95公斤-1之间;聚乙烯 (PE) 和聚烯 (PP) 是最常见的.
  • 堆肥破碎显著增加了MaP和MiP的数量,表明碎片化和丰富化.
  • 用于湿化堆肥的雨水是显著的,被忽视的微塑料 (MiPs) 的来源.

结论:

  • 减少生物垃圾中的塑料输入对于最大限度地减少堆肥中的微塑料 (MiP) 污染至关重要.
  • 工业堆肥过程可以将巨型塑料 (MaPs) 分成微型塑料 (MiPs).
  • 在堆肥设施中使用的雨水是微塑料 (MiP) 污染的额外来源.