Cited by 216Algal biology and biofuel productionWastewater Treatment and Nitrogen RemovalConstructed Wetlands for Wastewater Treatment

Removal of nitrogen from wastewater using microalgae and microalgae–bacteria consortia

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Jia, Huijun, Yuan, Qiuyan·2016·Cogent Environmental Science

Abstract

Exceeding nitrogen discharge into natural water bodies can lead to eutrophication in natural aquatic environments, as well as the decline in shellfish habitat and aquatic plant life. Currently, bacterial biological treatment process is the most common process employed in wastewater treatment plants, which requires extensive oxygen. The large demand for oxygen provided by mechanical aeration is costly and can strip out volatile compounds. Microalgae are photosynthetic micro-organisms, which can be a good source of oxygen in the wastewater treatment process. The effect of using microalgae, either solo or in consortia systems along with other micro-organisms (mainly bacteria) have been studied by researchers to improve their contaminant removal efficiency. In a consortia system, microalgae generate oxygen through photosynthesis to satisfy the oxygen requirement of bacteria. Simultaneously, they also remove contaminating nutrients throughout their growth cycle. Various factors affect the performance of the consortia systems such as lighting, pH, and species of microalgae and bacteria. Since microalgae are suspended and dispersed in the media, harvesting is crucial to achieving a high-quality effluent. This paper presents an overview on nitrogen removal from wastewater using different types of systems including microalgae solo and microalgae–bacteria consortia systems. The parameters that affect system performance as well as biomass harvesting methods are also discussed.

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Crossref · 10.1080/23311843.2016.1275089

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  • The use of microalgae-bacteria consortia in wastewater treatment has been widely studied, revealing that the microbial community plays an important role on the performance of the system.

    “Therefore, the use of microalgae–bacteria consortia in wastewater treatment has been widely studied, revealing that the microbial community plays an important role on the performance of the system [98,99,100].”

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Authors
Jia, H., & Yuan, Q.
Affiliations
University of Manitoba (CA)
Corresponding author
Yuan, Qiuyan
Venue
Cogent Environmental Science
Published
2016-12-31
Volume
2
Issue
1
Pages
1275089
ISSN
2331-1843 (ISSN-L)
OpenAlex
W2562737983
Cited by
216
References
89
Citations by year
2026: 20 · 2025: 18 · 2024: 24 · 2023: 33 · 2022: 31 · 2021: 28 · 2020: 27 · 2019: 14 · 2018: 18 · 2017: 2
FWCI
3.08
Type
journal article
Language
en
Open access
Locations
  • Sustainable Environment (publishedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
Natural Sciences and Engineering Research Council of Canada
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 › Constructed Wetlands for Wastewater Treatment
Keywords
nitrogen removal, wastewater treatment, microalgae, microalgae-bacteria consortia, eutrophication, microalgae harvesting, biomass harvesting, nutrient removal

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