Low concentration of zeolite to enhance microalgal growth and ammonium removal efficiency in a membrane photobioreactor
| Autor: | Melanie Pickett, Jorge Luis Calabria, Ran Tao, Aino-Maija Lakaniemi, Jukka Rintala, Eric D. van Hullebusch, Daniel H. Yeh, Robert Bair |
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| Přispěvatelé: | Tampere Univ, Fac Engn & Nat Sci, POB 541, FI-33104 Tampere, Finland, Univ S Florida, Dept Civil & Environm Engn, Tampa, FL 33620 USA, Institut de Physique du Globe de Paris (IPGP), Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), IHE Delft Inst Water Educ, Dept Environm Engn & Water Technol, Delft, Netherlands, Tampere University of Technology, Marie Sklodowska-Curie Innovative Training Network European Joint Doctorate (ITN-EJD) in Advanced Biological Waste-To-Energy Technologies (ABWET) from Horizon 2020 643071United States Environmental Protection AgencyRD835569National Science Foundation (NSF)1602087 |
| Rok vydání: | 2020 |
| Předmět: |
0208 environmental biotechnology
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences Photobioreactor 02 engineering and technology Wastewater 010501 environmental sciences 01 natural sciences 7. Clean energy Photobioreactors chemistry.chemical_compound Nutrient Ammonium Compounds Microalgae Environmental Chemistry Ammonium Biomass Turbidity Zeolite membrane photobioreactor Waste Management and Disposal Volume concentration 0105 earth and related environmental sciences Water Science and Technology Chemistry Microalgal growth General Medicine Pulp and paper industry turbidity 020801 environmental engineering wastewater treatment Membrane [SDU]Sciences of the Universe [physics] Zeolites nutrient removal Sewage treatment |
| Zdroj: | Environmental Technology Environmental Technology, Taylor & Francis: STM, Behavioural Science and Public Health Titles, 2020, pp.1-14. ⟨10.1080/09593330.2020.1752813⟩ |
| ISSN: | 1479-487X 0959-3330 |
| DOI: | 10.1080/09593330.2020.1752813 |
| Popis: | International audience; The aim of this work was to study the growth and nutrient removal efficiency of a mixed microalgal culture with and without the addition of low concentrations (0.5, 1, and 5 g L-1 of total liquid volume in the reactor) of natural zeolite. A control test in which only zeolite was added into a similar membrane photobioreactor was also conducted. The addition of 0.5 g L-1 zeolite to a continuously-fed membrane photobioreactor increased the microalgal biomass concentration from 0.50 to 0.90-1.17 g particulate organic carbon per L while the average ammonium removal efficiency increased from 14% to 30%. Upon microscopic inspection, microalgal cells were observed growing on the surface of zeolite particles, which indicates that zeolite can support attached microalgal growth. With higher zeolite doses (1 and 5 g L-1) inside the reactor, however, the breaking apart of added zeolite particles into finer particles dramatically increased solution turbidity, which likely was not beneficial for microalgal growth and ammonium removal due to reduced light penetration. This work shows that low doses of zeolite can be used as microcarriers to enhance microalgal biomass concentration and ammonium removal efficiency, while minimizing zeolite dose would likely reduce the turbidity effects. |
| Databáze: | OpenAIRE |
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