Abstract
For algae-induced odors, the most effective control approach is to manage the growth of odor-producing algae at the source. Fundamentally, reducing nutrient inputs into lakes and reservoirs is critical for controlling algae growth. However, nutrient control in water bodies is a long-term process. Moreover, some odor-producing algae can acquire nutrients from the bottom of the water column, allowing them to thrive even in relatively nutrient-poor conditions.
Typically, only one dominant odor-producing alga exists in a given reservoir. Understanding the ecological niche of the target algae can enable precise control by altering the environmental conditions of the water body. The author’s team has conducted extensive prior research (Li Zonglai, 2009; Su Ming, 2013; 2015; Jia Zeyu, 2019) and found that algae producing 2-methylisoborneol (MIB) are often benthic, deep-water, or sub-surface filamentous cyanobacteria. Compared to surface planktonic algae, these algae have the advantage of easier nutrient acquisition from the bottom of the water body and are better adapted to low-nutrient conditions. However, their growth is often light-limited due to their habitat in deeper layers. Based on this, the team proposed a strategy for controlling odor-producing algae through underwater light regulation.
This chapter focuses on the ecological niche characteristics of typical filamentous odor-producing algae and introduces control strategies based on underwater light modulation. Additionally, it provides a general overview of physical and chemical algae control techniques and their applications in engineering.
Chapter Outline
Citation
```bibtex (incollection?){su2021hu, title = {Chapter 5: Control Strategies for Odor-Producing Algae in Lake and Reservoir Water Sources}, editor = {Min Yang and Jianwei Yu et al.}, booktitle = {Odor Problems in Drinking Water: Sources and Control}, publisher = {Science Press}, pages = {162-193}, year = {2021}, isbn = {9787030677112}, author = {Ming Su} }