Enhanced nitrogen and phosphorus removal from domestic wastewater via algae-assisted sequencing batch biofilm reactor
Abstract
This study proposed a potential strategy for enhancement of nutrients removal from domestic wastewater by adding algae to sequencing batch biofilm reactor (SBBR) to form a novel algal-bacterial symbiosis (ABS) system. Results indicated that the algae-assisted SBBR increased the total nitrogen and phosphorus removal efficiencies from 38.5% to 65.8%, and from 31.9% to 89.3%, respectively. The carriers fixed at the top of the reactor were favorable for both formation of ABS system and algae enrichment. The chlorophyll-a increased to 3.59 mg/g at stable stage, which was 4.07 times higher than that in suspension. Moreover, the bio-carrier replacement and sludge discharge were independent, indicating that the sludge and algae retention time could be separated. The mechanisms analysis suggested that the enhanced nitrogen and phosphorus mainly attributed to the enrichment of both algae biomass and total biomass in biofilm. This study highlights the significance of developing ABS system for wastewater treatment.
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In a sequencing batch bioreactor, microalgal-bacterial symbiosis could promote total nitrogen removal from 38.5% to 65.8% and total phosphorus removal from 31.9% to 89.3%.
“The results indicated that microalgal-bacterial symbiosis could promote TN removal from 38.5% to 65.8% and TP removal from 31.9% to 89.3% [197].”
From Microalgae-based wastewater treatment: Mechanisms, challenges, recent advances, and future prospects (2023) · cites this paper as [197]
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Microalgae-based wastewater treatment: Mechanisms, challenges, recent advances, and future prospects
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- Authors
- Tang, C.-C., Tian, Y., Liang, H., Zuo, W., Wang, Z.-W., Zhang, J., & He, Z.-W.
- Affiliations
- Harbin Institute of Technology (CN)
- Corresponding author
- Tian, Yu
- Venue
- Bioresource Technology
- Publisher
- Elsevier BV
- Published
- 2018-02
- Volume
- 250
- Pages
- 185-190
- ISSN
- 0960-8524 (ISSN-L)
- OpenAlex
- W2767206877
- Cited by
- 135
- References
- 39
- Citations by year
- 2026: 18 · 2025: 17 · 2024: 17 · 2023: 18 · 2022: 24 · 2021: 16 · 2020: 13 · 2019: 9 · 2018: 3
- FWCI
- 3.08
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- Bioresource Technology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Harbin Institute of Technology of China (2017DX02, QA201207)
- Applied Technology Research and Development Program of Harbin (2017AB4AS035)
- Topics
- Physical Sciences › Environmental Science › Pollution › Wastewater Treatment and Nitrogen Removal
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
- Physical Sciences › Environmental Science › Waste Management and Disposal › Wastewater Treatment and Reuse
- Keywords
- nitrogen removal, phosphorus removal, domestic wastewater, sequencing batch biofilm reactor, algal-bacterial symbiosis, biofilm carriers, chlorophyll a, sludge retention, nutrient removal
- MeSH terms
- Nitrogen, Phosphorus, Waste Disposal, Fluid, Biofilms, Bioreactors, Wastewater
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