Model-based evaluation and optimization of high-rate algae ponds for wastewater treatment at demonstrative scale
Visualitza/Obre
Estadístiques de LA Referencia / Recolecta
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/334313
Correu electrònic de l'autoralvarogallegop96gmail.com
Realitzat a/ambUniversidade Federal de Minas Gerais
Tipus de documentProjecte Final de Màster Oficial
Data2020-06-29
Condicions d'accésAccés obert
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Reconeixement 3.0 Espanya
Abstract
High-rate algae ponds (HRAP) for wastewater treatment have received great interest, as they are a microalgae-based treatment system that optimize the growth of microalgae, have less space requirements than facultative and maturation ponds and have proven to successfully treat a variety of wastewaters. A new demonstrative-scale HRAP (45 to 75 m3) is currently under construction at the Universidade Federal de Minas Gerais, Brazil. In the present study the performance of this HRAP is predicted by simulations employing the BIO_ALGAE 2 model, which has been adapted to the Reaction Engineering interface of the modelling software COMSOL. The influence of hydraulic retention time (HRT, from 3 to 8 d) and useful operational depth (0,3 or 0,5 m) was evaluated. The results showed that the best performance of the HRAP is achieved when operating with an HRT of 8 d, being slightly better when the depth was 0,5 m. With these conditions, the results suggest that the HRAP may be capable of accomplish with the Brazilian regulation for sewage treatment. Furthermore, the biomass produced could be harnessed for other purposes (as, for example, in the production of biogas or biofertilizer). However, when reducing the HRT under 8 d, the microalgal concentration in the system drastically decreases.
TitulacióMÀSTER UNIVERSITARI EN ENGINYERIA AMBIENTAL (Pla 2014)
Col·leccions
Fitxers | Descripció | Mida | Format | Visualitza |
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TFM_Gallego_Puerta_Àlvaro.pdf | 4,069Mb | Visualitza/Obre |