Water quality improvement using novel attached growth systems

Excessive growth of microalgae results in the eutrophication and degradation of water quality in lakes and ponds. Microalgae have proved to be very beneficial for sustainable development. Its applications, starting from growth to death, make them a valuable resource for food and energy production. H...

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Bibliographic Details
Published inSeparation science and technology Vol. 58; no. 5; pp. 1004 - 1026
Main Authors Singh, Gulab, Patidar, S.K.
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 24.03.2023
Taylor & Francis Ltd
Subjects
Agricultural runoff
Algae
Aquatic microorganisms
attach growth system
Biomass
Continuous flow
Environmental degradation
Eutrophic environments
Eutrophication
Growth
Hypereutrophic waters
hypolimnetic water
Lakes
Microalgae
Nutrient removal
Nutrient sources
Phytoplankton
Pollution control
Quality control
Stormwater
Surface water
Sustainable development
Water quality
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Summary:Excessive growth of microalgae results in the eutrophication and degradation of water quality in lakes and ponds. Microalgae have proved to be very beneficial for sustainable development. Its applications, starting from growth to death, make them a valuable resource for food and energy production. However, presence of microalgae in surface water sources affects water quality and its beneficial uses. The excess nutrient-rich agriculture runoff also adds problems to the downstream systems. Nutrient removal and microalgae harvesting are considered the most problematic task for improving water quality of surface waters. The main objective of the present study was to improve the water quality of nutrient rich waters using attached growth systems. The use of batch and continuous flow baffled attached growth systems has successfully improved the water quality and produced algal biomass that can be utilized or transformed into other valuable products. The performance of continuous flow baffled attached growth system was better and it improved the quality of oligotrophic, mesotrophic, eutrophic and hypereutrophic waters by removing>95% of TN and TP in 35, 63, 63 and 4 days, with biomass productivity of 2.69 ± 0.21, 3.17 ± 0.06, 3.61 ± 0.16 and 4.64 ± 0.3 g DW m −2 day −1 , respectively.
ISSN:0149-6395
1520-5754
DOI:10.1080/01496395.2023.2172584