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相关概念视频

Microbial Wastewater Treatment01:30

Microbial Wastewater Treatment

Microbial communities in aquatic ecosystems play a key role in the natural breakdown of contaminants introduced through domestic and industrial effluents. Acting as biological catalysts, these microbes change and mineralize a wide range of organic and inorganic pollutants under different redox conditions.In oxygen-rich surface waters, aerobic heterotrophs lead organic matter breakdown, using oxygen as the terminal electron acceptor to efficiently oxidize substrates to carbon dioxide and water.

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Continuously-stirred Anaerobic Digester to Convert Organic Wastes into Biogas: System Setup and Basic Operation
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从消化剂中恢复营养:试点测试实验

Vera Proskynitopoulou1, Ioannis Garagounis2, Anastasios Vourros2

  • 1ARTEMIS Laboratory, Chemical Process and Energy Resources Institute, Centre for Research & Technology Hellas (CERTH), 6th km Charilaou-Thermi Road, Thermi, P.O. Box: 60361, 57001 Thessaloniki, Greece; Laboratory of Chemical & Environmental Technology, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece.

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|January 27, 2024
PubMed
概括

使用顺序过,电透析和紫外线/臭氧化回收的营养物质和澄清的水,以重复使用. 这项技术有效地减少了固体和有机物质,提高了消化质量.

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科学领域:

  • 环境工程 环境工程
  • 废物管理 废物管理
  • 水处理技术水处理技术

背景情况:

  • 消化剂是无氧消化过程的副产品,需要进行加工以恢复和重复使用营养.
  • 农业和动物废物产生高固体和有机负载的消化物.
  • 当前的方法在综合性消化处理和营养恢复方面往往不足.

研究的目的:

  • 评估一系列用于试点规模消化剂加工的技术.
  • 为了恢复宝贵的营养物质,如,和酸盐.
  • 为了减少固体和有机物质,改善消化质量,以便潜在的重复使用.

主要方法:

  • 微过,超过,反透,选择性电透析和紫外线/臭氧化的连续应用.
  • 来自乳制品,动物和农业废物的消化剂的加工.
  • 对营养物质回收率和水澄清效率的分析.

主要成果:

  • 膜过 (微型和超级) 清除了超过80%的悬浮固体和宏分子.
  • 反透实现了85-100%的溶液去除,产生了澄清水.
  • 选择性电透析回收了超过95%的氨和,以及55%的酸盐 (75%作为 struvite).

结论:

  • 综合处理系统在试点规模上有效处理了消化剂.
  • 实现了高营养回收 (氨,,,酸盐).
  • 该过程产生了适合重复使用的高质量的澄清水,证明了可行的废物转化为资源战略.