细胞内储存聚合物的作用在同时生物营养物质的去除和资源的回收
Ghazal Srivastava1, Kaoutar Aboudi2, Vinay Kumar Tyagi3
1Environmental Engineering Group, Department of Civil Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India.
Journal of environmental management
|December 18, 2024
概括
先进的废水处理厂通过优化聚酸酸盐 (PHA) 生产条件来实现同时生物营养去除 (SBNR). 在污水中增加挥发性脂肪酸 (VFA) 会促进营养物质的去除,并产生生物塑料.
科学领域:
- 环境工程 环境工程
- 生物技术是生物技术.
- 微生物学 微生物学
背景情况:
- 同时生物营养去除 (SBNR) 对于先进的废水处理厂 (WWTP) 来说至关重要,以满足严格的废水标准.
- SBNR涉及同时化-脱 (SND) 和增强的生物去除 (EBPR).
- 细胞内碳储量,如多基酸 (PHA) 是关键的营养物质的去除和资源回收在WWTPs.
研究的目的:
- 审查SBNR的机制,重点关注PHA和聚β-基酸盐 (PHB) 进行营养去除和资源回收.
- 探索提高废水中挥发性脂肪酸 (VFA) 可用性的策略,以有效生产PHA.
- 突出WWTP作为PHA (生物塑料前体) 生产的生物炼油厂.
主要方法:
- 审查运行条件以优化SBNR和基板存储机制.
- 分析技术解决方案,以增加污水中的VFA可用性.
- 在WWTP中检查PHB (PHA) 生产过程.
主要成果:
- 优化运营条件可以通过利用微生物基质储存机制 (如PHA) 来增加SBNR.
- 技术整合,如预发酵,可以增强从原始污水中的VFA生产,这对于PHA形成至关重要.
- 使用SBNR的WWTP可以作为生产PHA的生物炼油厂,这是一个有价值的生物塑料前体.
结论:
- 有效的SBNR依赖于理解和优化微生物过程,包括PHA积累.
- 通过技术解决方案提高VFA的可用性对于最大限度地提取营养物质和PHA生产在WWTPs至关重要.
- 污水处理道提供了一个可持续的平台,通过从废水中生物生产PHA来回收资源.
相关概念视频
01:27Cell Inclusions
1
Prokaryotic cells possess a variety of inclusions that play crucial roles in nutrient storage, metabolic processes, and environmental adaptation. These structures enable bacteria to thrive under fluctuating environmental conditions by storing essential resources and optimizing their metabolic efficiency.Carbon Storage: Poly-β-Hydroxybutyric Acid and Glycogen GranulesBacteria frequently store excess carbon in specialized granules. Poly-β-hydroxybutyric acid (PHB) granules are lipid...
1
00:46Bioremediation
18.2K
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.
18.2K
01:30Environmental Applications of Microorganisms
1
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...
1
01:10Sugars as Energy Storage Molecules
8.3K
Sugar (a simple carbohydrate) metabolism (chemical reactions) is a classic example of the many cellular processes that use and produce energy. Living things consume sugar as a major energy source because sugar molecules have considerable energy stored within their bonds. Consumed carbohydrates have their origins in photosynthesizing organisms like plants. During photosynthesis, plants use the energy of sunlight to convert carbon dioxide gas into sugar molecules, like glucose. Because this...
8.3K
01:26Biosynthesis of Polysaccharides
Polysaccharides such as glycogen and starch are synthesized from nucleoside diphosphate sugars, primarily uridine diphosphate glucose (UDPG) and adenosine diphosphate glucose (ADPG). These activated glucose donors act as key intermediates in carbohydrate metabolism and biosynthesis. UDPG primarily involves glycogen synthesis in animals and many bacteria, while ADPG plays a fundamental role in starch synthesis in plants and certain bacteria.UDPG is formed when glucose-1-phosphate reacts with...
01:29Biofilms
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...