The interactions of algae-activated sludge symbiotic system and its effects on wastewater treatment and lipid accumulation
Abstract
The ability of Scenedesmus sp. 336, Chlorella sp. 1602 and activated sludge (AS) alone or in combination to remove nutrients and accumulate lipid in artificial municipal wastewater under light/dark conditions was studied. The symbiotic systems showed greater advantages than the sterile systems. Scenedesmus sp. 336 + AS system obtained the highest lipid productivity after seven days of cultivation in light, while the NO 3--N and COD were completely absorbed and utilized, as well as the removal rate of PO 43--P and NH 4+-N were 99.82% and 87.13%, respectively. Total superoxide dismutase (SOD) activity was measured to demonstrate the relationship between oxidative stress and lipid accumulation. Besides, the results of microbial analysis showed that some dominant plant growth-promoting bacteria could secrete indole-3-acetic acid (IAA) to enhance the interaction between algae and bacteria, and the denitrifying bacteria that could coexist with microalgae also improved the efficiency of wastewater treatment in the symbiotic systems.
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The results showed greater advantages with the symbiotic systems compared with the sterile ones.
“The results showed greater advantages with the symbiotic systems compared with the sterile ones.”
From Toward the Enhancement of Microalgal Metabolite Production through Microalgae–Bacteria Consortia (2021) · cites this paper as [104]
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References 54 · Cited by 161
- Authors
- Chen, X., Hu, Z., Qi, Y., Song, C., & Chen, G.
- Affiliations
- Tianjin University (CN)
- Corresponding author
- Qi, Yun
- Venue
- Bioresource Technology
- Publisher
- Elsevier BV
- Published
- 2019-11
- Volume
- 292
- Pages
- 122017
- ISSN
- 0960-8524 (ISSN-L)
- OpenAlex
- W2968497811
- Cited by
- 161
- References
- 54
- Citations by year
- 2026: 9 · 2025: 30 · 2024: 38 · 2023: 22 · 2022: 34 · 2021: 22 · 2020: 5 · 2019: 1
- FWCI
- 3.30
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Bioresource Technology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Ministry of Science and Technology of the People's Republic of China
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
- Physical Sciences › Environmental Science › Pollution › Wastewater Treatment and Nitrogen Removal
- Physical Sciences › Environmental Science › Waste Management and Disposal › Wastewater Treatment and Reuse
- Keywords
- microalgae, Scenedesmus, Chlorella, lipid accumulation, wastewater treatment, nutrient removal, nitrogen removal, phosphorus removal, oxidative stress, superoxide dismutase, plant growth-promoting bacteria, indole-3-acetic acid, denitrifying bacteria, light and dark conditions
- MeSH terms
- Chlorella, Lipids, Sewage, Microalgae, Wastewater
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