评估织介质上的微生物生物膜生长及其对废水处理的效率
Kavita Verma1, Reshma Mohan Thattaramppilly1, Anshika Mishra1
1Centre for Sustainable Technologies, Indian Institute of Science, Bangalore, India.
The Science of the total environment
|October 31, 2025
概括
附着生长生物反应器 (AGBR) 中的合成织介质提供了一个可持续的废水处理解决方案. 与传统方法相比,编织非编织 (BNB) 和水平垂直编织 (HVB) 媒体表现出卓越的性能,降低了成本和足迹.
科学领域:
- 环境工程 环境工程
- 生物技术是生物技术.
- 材料科学 材料科学 材料科学
背景情况:
- 传统的废水处理膜面临着高成本,能源消耗和污染的挑战.
- 对于可持续的,具有成本效益和高效的废水处理技术的需求日益增长.
- 合成织介质为附着生长生物反应器 (AGBR) 提供了潜在的替代方案.
研究的目的:
- 评估五种不同的合成织介质在支持微生物生物膜形成和处理AGBR中的城市废水方面的有效性.
- 确定与生物膜发育和反应器性能相关的织品特性.
- 为了比较AGBR与传统测序批量反应堆 (SBR) 的技术经济可行性.
主要方法:
- 五种织介质 (BNB,BB,SB,NB,HVB) 被测试了AGBR中的生物膜支和废水处理.
- 测量了化学氧气需求 (COD) 和氨去除效率.
- 量化了自和异微生物群落的动态参数.
- 分析了织品的特性 (线性密度,特定表面积).
- 进行了技术经济分析,比较了AGBR和SBR.
主要成果:
- 编织非编织 (BNB) 和水平垂直编织 (HVB) 介质表现出优越的生物膜发育.
- 使用BNB和HVB的AGBR系统实现了62%-64%的COD去除和85%-87%的氨去除.
- 织架构与微生物附着,生物膜密度和处理效率有很强的相关性.
- 与SBR相比,AGBR的占地面积减少了35%,成本降低了35%.
结论:
- 合成织介质,特别是BNB和HVB,是用于附着生长废水处理的有效和有前途的材料.
- 织品设计显著影响微生物殖民和反应器性能,为优化处理效率提供了一条途径.
- 使用织媒介的AGBR为城市废水处理提供了比传统的SBR系统更紧,更具成本效益和更可持续的替代方案.
更多相关视频
07:47Author Spotlight: An Antimicrobial Fabric Using Nano-Herbal Encapsulation of Essential Oils
Published on: April 7, 2023
8.9K
04:51Author Spotlight: Characterizing Environmental Biofilm Mechanics Using Optical Coherence Elastography and its Applications in Wastewater Treatment
Published on: March 1, 2024
1.4K
相关概念视频
Antimicrobial Effectiveness
894
The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
894
Biofilms
1.1K
Biofilms are complex communities of microorganisms encased in a self-produced extracellular polysaccharide matrix attached to surfaces. These microbial consortia can include single or multiple species, providing enhanced survival benefits by forming organized, multilayered structures.The formation of biofilms occurs through four key stages: attachment, colonization, development, and dispersal.During attachment, free-swimming planktonic cells adhere to a surface, often facilitated by...
1.1K
