Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Microalgae cultivation for municipal and piggery wastewater treatment in Brazil

Full text
Author(s):
Leite, Luan de Souza [1] ; Hoffmann, Maria Teresa [1] ; Daniel, Luiz Antonio [1]
Total Authors: 3
Affiliation:
[1] Sao Carlos Sch Engn, Dept Hydraul & Sanitat, Av Trabalhador Sao Carlense 400, BR-1356659 Sao Paulo, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: JOURNAL OF WATER PROCESS ENGINEERING; v. 31, OCT 2019.
Web of Science Citations: 5
Abstract

Microalgae are a source of high-valuable products covering a wide range of applications. However, costs incurred by cultivating them make it an expensive process. The combination of wastewater treatment and microalgae cultivation is a viable option to reduce expenses related to cultivation. However, municipal wastewater from the centralized Brazilian sanitation system is highly diluted, and it is technically and economically impractical to use it for microalgae cultivation. As an alternative, diluted effluent can be mixed with a different kind of wastewater, aiming to increase the nutrient concentration (carbon, nitrogen and phosphorus) for microalgae cultivation. In this study, microalgae cultivation and wastewater mixture (municipal and piggery wastewater) treatment were monitored for four weeks. The pilot treatment system consisted of UASB as pretreatment and Chlorella sorokiniana cultivation in three flat panel photobioreactors. High UASB efficiency was obtained in organic matter removal (> 90%), even with a large variability of initial mixture characteristics. C. sorokiniana production reached about 1 g L-1, with an average removal of dissolved inorganic carbon, orthophosphate and ammonia around 46 to 56%, 40 to 60% and 100%, respectively. Possible solutions to improve the microalgae growth and the system treatment are discussed. (AU)

FAPESP's process: 13/50351-4 - Recovering nutrients and carbon from concentrated black water: a sustainable decentralized approach for wastewater treatment
Grantee:Luiz Antonio Daniel
Support Opportunities: Regular Research Grants
FAPESP's process: 17/14620-1 - Optimization of Chlorella sorokiniana cultivation in a flat panel photobioreactor and harvest for use as fertilizer
Grantee:Luan de Souza Leite
Support Opportunities: Scholarships in Brazil - Master