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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.
Microbial Bioremediation of Hydrocarbons01:26

Microbial Bioremediation of Hydrocarbons

Bioremediation is an environmentally sustainable process that employs living organisms—primarily microorganisms—to degrade or neutralize pollutants from contaminated environments. In oil spills and hydrocarbon pollution, bioremediation involves the use of hydrocarbon-degrading bacteria to transform toxic compounds into less harmful substances. This approach leverages natural microbial metabolic processes and is considered both cost-effective and ecologically favorable compared to physical or...
Microbial Bioremediation of Pesticides01:28

Microbial Bioremediation of Pesticides

Pesticides often feature structurally complex chemical architectures, incorporating halogen groups and multiple aromatic rings. These characteristics confer high chemical stability, rendering many pesticides resistant to natural degradation processes. This resistance poses significant environmental concerns, as persistent pesticide residues can accumulate in ecosystems and affect non-target organisms.Despite the inherent stability of many pesticides, certain microorganisms possess the metabolic...
Microbial Corrosion01:24

Microbial Corrosion

Microbiologically Influenced Corrosion (MIC) is a significant form of material degradation caused by the metabolic activities of microorganisms. This phenomenon poses substantial challenges across various industries, including oil and gas, maritime, and water treatment sectors.MIC occurs when microorganisms, such as bacteria, archaea, and fungi, colonize metal surfaces, forming biofilms that alter the local electrochemical environment. These biofilms can lead to the production of corrosive...
Bioplastics01:27

Bioplastics

Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...
Microbial Bioremediation of Plastics01:28

Microbial Bioremediation of Plastics

Polyethylene terephthalate (PET) is a synthetic polymer widely utilized in the packaging industry, particularly for bottles and containers. Due to its chemical stability and durability, PET accumulates in the environment, contributing significantly to plastic pollution. It comprises repeating units of terephthalic acid and ethylene glycol, resulting in a semi-crystalline structure that is resistant to natural degradation processes.A notable breakthrough in plastic biodegradation came with the...

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相关实验视频

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Protocol for Microplastics Sampling on the Sea Surface and Sample Analysis
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把一个问题加在另一个问题上? 看看可生物降解的微塑料.

Gary Ossmar Lara-Topete1, Juan Daniel Castanier-Rivas1, María Fernanda Bahena-Osorio1

  • 1Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Laboratorio de Sostenibilidad y Cambio Climático, Av. General Ramón Corona 2514, Zapopan, Jalisco 45138, Mexico.

The Science of the total environment
|June 10, 2024
PubMed
概括

生物降解塑料可能无法完全分解,从而产生微生物降解塑料 (MBPs). 这些MBP带来了环境风险,可能会比传统塑料更严重地破坏生态系统.

关键词:
无氧消化消化无氧消化生物降解 生物降解堆肥化 堆肥化 堆肥化生态毒性 生态毒性微塑料是一种微塑料.土壤 土壤土壤.废物管理 废物管理

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科学领域:

  • 环境科学 环境科学
  • 聚合物科学 聚合物科学
  • 生态毒理学 生态毒理学

背景情况:

  • 微塑料 (MP) 是水生和土壤生态系统的环境问题.
  • 可生物降解塑料旨在减少塑料污染,但它们的环境命运尚不清楚.
  • 不完全的生物降解可能导致微生物降解塑料 (MBPs),带来新的风险.

研究的目的:

  • 评估生物降解塑料产生的意外后果风险.
  • 调查不完全矿化和MBP形成的可能性.
  • 评估MBP的生态毒理影响.

主要方法:

  • 关于可生物降解塑料降解的综合文献综述.
  • 在堆肥和无氧消化中降解速度的分析.
  • 对MBPs的现有生态毒性数据的评估.

主要成果:

  • 在各种条件下,生物降解塑料的不完全矿化是显而易见的.
  • 大量的MBP可以通过堆肥和消化释放出来.
  • MBP 的生态毒理影响是不确定的,并且可能是严重的.

结论:

  • 可生物降解塑料可能导致MBPs的形成和环境传播.
  • 堆肥和消化物可能充当MBPs和吸附污染物的载体.
  • 转向可生物降解塑料带来不确定的生态毒理后果,可能比传统塑料更糟糕.