Advances in sustainable wastewater treatment: Microalgal–bacterial consortia process, greenhouse gas reduction and energy recovery technologies

Because of the low energy consumption of aeration, strong nutrient removal capacity, low greenhouse gas emissions and high resource recovery potential, the wastewater treatment process using microalgal–bacterial consortia is considered as an excellent alternative to the traditional activated sludge...

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Bibliographic Details
Published inWater and environment journal : WEJ Vol. 37; no. 2; pp. 192 - 205
Main Authors Guo, Qingyang, Qi, Feng, Mu, Ruimin, Yu, Gejiang, Ma, Guixia, Meng, Qianya
Format Journal Article
LanguageEnglish
Published London Wiley Subscription Services, Inc 01.05.2023
Subjects
Activated sludge
Aeration
Algae
Aquatic microorganisms
Bacteria
carbon neutrality
Consortia
economically recycling resource
Emissions
Emissions control
Energy consumption
Energy recovery
Environmental impact
global warming potential
greenhouse gas emission
Greenhouse gases
life cycle assessment
microalgal–bacterial consortia
microalgal–bacterial granular sludge
Nutrient removal
Phytoplankton
Recovery
Resource recovery
Sludge
Wastewater treatment
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Summary:Because of the low energy consumption of aeration, strong nutrient removal capacity, low greenhouse gas emissions and high resource recovery potential, the wastewater treatment process using microalgal–bacterial consortia is considered as an excellent alternative to the traditional activated sludge wastewater treatment process. In this review, the wastewater treatment process based on microalgal–bacterial consortia and its greenhouse gas emission reduction mechanism are introduced. The potential advantages and constraints of the process in carbon neutral wastewater treatment were highlighted and critically discussed. The environmental impact of wastewater treatment, the research progress of environment‐friendly treatment technologies and the challenges faced by integrating these technologies are discussed. However, the wastewater treatment process based on microalgae–bacteria consortia still needs to be studied. In the future, it is necessary to optimize the scheme for quantifying the environmental impact of wastewater treatment and further expand the recycling rate and cost value of wastewater resources.
Bibliography:Funding information
This research was funded by Youth Innovation Technology Project of Higher School in Shandong Province, grant number 2019KJD003, Shandong Province Natural Science Foundation, grant number ZR2020ME229, and Housing and Urban–Rural Development Department of Shandong Province Research and Technology Extension Project, grant number 2020KYKF04‐002.
ISSN:1747-6585
1747-6593
DOI:10.1111/wej.12839