We have located links that may give you full text access.
Cultivation and selection of cyanobacteria in a closed photobioreactor used for secondary effluent and digestate treatment.
Science of the Total Environment 2017 June 2
The main objective of this study was to select and grow wastewater-borne cyanobacteria in a closed photobioreactor (PBR) inoculated with a mixed consortium of microalgae. The 30L PBR was fed with a mixture of urban secondary effluent and digestate, and operated in semi-continuous mode. Based on the nutrients variation of the influent, three different periods were distinguished during one year of operation. Results showed that total inorganic nitrogen (TIN), inorganic phosphorus concentration (PO4 3- ), phosphorus volumetric load (LV -P) and carbon limited/non-limited conditions leaded to different species composition, nutrients removal and biomass production in the culture. High TIN/PO4 3- concentrations in the influent (36mg N L-1 /3mg P L-1 ), carbon limitation and an average LV -P of 0.35mg P L-1 d-1 were negatively related to cyanobacteria dominance and nutrients removal. On the contrary, cyanobacteria predominance over green algae and the highest microbial biomass production (averaging 0.084g Volatile Suspended Solids (VSS) L-1 d-1 ) were reached under TIN/PO4 3- concentrations of 21mg N L-1 /2mg P L-1 , no carbon limitation and an average LV -P of 0.23mg P-PO4 3- L-1 d-1 . However, although cyanobacteria predominance was also favored with a LV -P 0.15mg L-1 d-1 , biomass production was negatively affected due to a P limitation in the culture, resulting in a biomass production of 0.0.39g VSS L-1 d-1 . This study shows that the dominance of cyanobacteria in a microalgal cyanobacterial community in an agitated PBR using wastewater as nutrient source can be obtained and maintained for 234days. These data can also be applied in future biotechnology applications to optimize and enhance the production of added value products by cyanobacteria in wastewater treatment systems.
Full text links
Related Resources
Trending Papers
Executive Summary: State-of-the-Art Review: Unintended Consequences: Risk of Opportunistic Infections Associated with Long-term Glucocorticoid Therapies in Adults.Clinical Infectious Diseases 2024 April 11
Autoimmune Hemolytic Anemias: Classifications, Pathophysiology, Diagnoses and Management.International Journal of Molecular Sciences 2024 April 13
Clinical practice guidelines on the management of status epilepticus in adults: A systematic review.Epilepsia 2024 April 13
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app
All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.
By using this service, you agree to our terms of use and privacy policy.
Your Privacy Choices
You can now claim free CME credits for this literature searchClaim now
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app