一个新的藻类辅助测序批和间歇式空气提升生物反应器 (A-SBIAB),使用聚丝基载体用于养猪场废水处理
1Heilongjiang Province Key Laboratory of Cold Region Wetland Ecology and Environment Research, School of Geography and Tourism, Harbin University, 109 Zhongxing Road, Harbin, 150086, China.
Bioprocess and biosystems engineering
|September 3, 2025
概括
这项研究引入了藻类辅助测序批次和间歇式空气提升生物反应器 (A-SBIAB) 用于养猪场废水处理. 该系统实现了化学氧气需求,总和总的高去除率,增强了藻类-细菌共生.
科学领域:
- 环境微生物学
- 水处理工程
- 生物技术
背景情况:
- 藻类辅助的生物废水处理提供了成本效益和高清除效率.
- 藻类-细菌共生系统的稳定和可持续性需要进一步发展.
- 养猪场的废水面临着严重的营养污染问题.
研究的目的:
- 开发和评估用于猪场废水处理的藻类辅助测序批次和间歇式空气提升生物反应器 (A-SBIAB).
- 使用新型悬浮生物载体增强藻类-细菌共生.
- 确定营养物质的最佳操作参数.
主要方法:
- 一个包含悬浮生物载体的A-SBIAB系统的建造.
- 优化Chl-a度,光强度和照明时间.
- 对化学氧气需求 (COD),总 (TN) 和总 (TP) 的去除效率的分析.
- 使用分子技术对主导细菌和藻类群体进行表征.
主要成果:
- A-SBIAB系统实现了高清除效率:COD为92.0%,TN为81.7%,TP为89.3%.
- 最佳参数包括Chl-a度为1000 mg/m3,光强度为6000 lx,照明时间为10 h.
- 确定了主要的细菌群落 (Campylobacteria,Desulfuromonadia) 和藻,并阐明了它们的作用.
- 这种悬浮的生物载体促进了藻类与细菌的共生.
结论:
- 开发的A-SBIAB系统有效地从养猪场废水中去除营养物质.
- 增强藻类和细菌的共生对于有效的废水处理至关重要.
- 这项研究提供了藻类辅助生物反应器中微生物社区动态的见解.
相关概念视频
Bioreactor Design and Operational System
99
Bioreactors are engineered vessels designed to cultivate microorganisms under controlled conditions for industrial bioprocessing. They maintain sterility and allow precise regulation of pH, temperature, oxygen, and nutrient levels to optimize microbial growth and metabolite production. Bioreactors range from small laboratory units of 1 liter to industrial systems holding up to 500,000 liters, though only about 75% of their volume is actively used for fermentation. The remaining headspace...
99
Bioreactor Controls-II
57
In aerobic fermentations, oxygen is vital for microbial growth and metabolite production. Since air comprises only about 20% oxygen and the gas is poorly soluble in water—just 9 ppm at 20°C—supplying sufficient oxygen becomes a critical challenge, especially in high-demand processes like yeast growth or citric acid production. Even a fully saturated broth may offer only a few seconds of oxygen availability.To address this, sterile or scrubbed air is introduced into the...
57
Upstream Processing
81
Upstream processing represents a critical phase in biomanufacturing, wherein biological systems such as microorganisms, mammalian cells, or insect cells are cultivated to produce therapeutic proteins, vaccines, enzymes, or other biologically derived products. This phase encompasses all steps from the selection and genetic manipulation of the production organism to the cultivation of cells in bioreactors under tightly controlled environmental conditions.Host Selection and Genetic OptimizationThe...
81
Biofuels
84
The microbial conversion of organic matter into biofuels holds potential as a renewable energy source. Among biofuel sources, microalgae are recognized as a highly efficient and adaptable feedstock for biodiesel production, owing to their rapid biomass accumulation, elevated lipid productivity, and capacity to proliferate in diverse aquatic systems, including freshwater, marine, and wastewater habitats. Unlike terrestrial crops, microalgae do not compete for land and can achieve significantly...
84


