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Microalgae Cultivation and Biomass Quantification in a Bench-Scale Photobioreactor with Corrosive Flue Gases
Published on: December 19, 2019
[Microbial biomass and activity in a full-scale O3-BAC filter]
Zhi-lin Wu1, Xin Yu, Liang Zhu
1College of Environmental science and Engineering, Hohai University, Nanjing 210098, China. wuzhilinmy2006@163.com
Huan Jing Ke Xue= Huanjing Kexue
|July 14, 2010
Summary
Microbial biomass in drinking water filters peaks at 10 cm depth, with deeper microbes showing higher activity potential. This suggests enhanced metabolic activity improves reactor resistance to shock loads.
Area of Science:
- Environmental microbiology
- Water treatment technologies
Context:
- Investigating microbial biomass and activity in a full-scale drinking water biofilter.
- Assessing the impact of ozone (O3) residue on microbial distribution and biofilm formation.
Purpose:
- To analyze the vertical distribution of microbial biomass and activity within an O-BAC filter.
- To understand the relationship between microbial biomass, specific oxygen uptake rate (SOUR), and depth.
- To evaluate the potential for increased metabolic activity in deeper biomass layers.
Summary:
- Microbial biomass exhibited an 'increase-reduce' pattern with a peak at 10 cm depth, likely influenced by ozone residue affecting TOC distribution and biofilm formation.
- Specific oxygen uptake rate (SOUR) per unit biomass fluctuated inversely to biomass, while SOUR per unit volume showed similar distribution trends to biomass in the upper 20 cm.
- Deeper biomass layers demonstrated a higher increase in activity potential, indicating enhanced metabolic activity.
Impact:
- Findings suggest that increased metabolic activity in deeper biomass layers may enhance the reactor's resistance to shock loads.
- Provides insights into microbial dynamics within drinking water biofilters for optimizing treatment processes.
- Highlights the importance of understanding microbial distribution for effective water purification and system resilience.
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