Optimization of Chlorella sorokiniana cultivation in a flat panel photobioreactor and harvest for use as fertilizer

• Grant number: 17/14620-1
• Support Opportunities: Scholarships in Brazil - Master
• Start date: January 01, 2018
• End date: July 31, 2019
• Field of knowledge: Engineering - Sanitary Engineering - Water Supply and Wastewater Treatment
• Principal Investigator: Luiz Antonio Daniel
• Grantee: Luan de Souza Leite
• Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Associated scholarship(s): 18/01218-3 - Mechanism behind alkaline flocculation of Chlorella sorokiniana and its validation in black water, BE.EP.MS

Abstract

Algae are present in almost all aquatic environments, making them one of the most characteristic organisms on Earth. In the last years, several applications have been proposed, among them, the use in agriculture as biofertilizer and in the tertiary treatment of the sewage. In a scenario of increasing food demand and reduced soil fertility due to the indiscriminate use of synthetic fertilizer, microalgae appear as a healthier and more sustainable possibility for agricultural activity. In this context, the present research aims to experimentally study ways to optimize the production of the Chlorella sorokiniana microalgae in a flat panel photobioreactor (FBR), using simulated black waters (sanitary sewage and swine manure). Besides, the harvesting of the biomass generated, using natural and synthetic coagulants, through coagulation, flocculation, flotation , and centrifugation. The research proposes to foment the discussion about the use of biomass as fertilizer, valuing wastewater as a source of nutrients, in a country that stands out in the global scenario in the sale of commodities. (AU)

Scientific publications

(5)

(The scientific publications listed on this page originate from the Web of Science or SciELO databases. Their authors have cited FAPESP grant or fellowship project numbers awarded to Principal Investigators or Fellowship Recipients, whether or not they are among the authors. This information is collected automatically and retrieved directly from those bibliometric databases.)

LEITE, LUAN DE SOUZA; DANIEL, LUIZ ANTONIO. Optimization of microalgae harvesting by sedimentation induced by high pH. WATER SCIENCE AND TECHNOLOGY, v. 82, n. 6, p. 1227-1236, SEP 15 2020. (13/50351-4, 17/14620-1)

LEITE, LUAN DE SOUZA; HOFFMANN, MARIA TERESA; DANIEL, LUIZ ANTONIO. Coagulation and dissolved air flotation as a harvesting method for microalgae cultivated in wastewater. JOURNAL OF WATER PROCESS ENGINEERING, v. 32, DEC 2019. (13/50351-4, 17/14620-1)

LEITE, LUAN DE SOUZA; DOS SANTOS, PRISCILA RIBEIRO; DANIEL, LUIZ ANTONIO. Microalgae harvesting from wastewater by pH modulation and flotation: Assessing and optimizing operational parameters. Journal of Environmental Management, v. 254, JAN 15 2020. (13/50351-4, 17/14620-1)

DE OLIVEIRA, GABRIELA LAILA; ERBETTA SUEITT, ANA PAULA; DOS SANTOS, PRISCILA RIBEIRO; LEITE, LUAN DE SOUZA; DANIEL, LUIZ ANTONIO. Removal of protozoan (oo)cysts and bacteria during microalgae harvesting: Outcomes from a lab-scale experiment. Chemosphere, v. 286, n. 3, JAN 2022. (17/14620-1, 15/02073-0, 12/50522-0, 13/50351-4)

LEITE, LUAN DE SOUZA; HOFFMANN, MARIA TERESA; DANIEL, LUIZ ANTONIO. Microalgae cultivation for municipal and piggery wastewater treatment in Brazil. JOURNAL OF WATER PROCESS ENGINEERING, v. 31, OCT 2019. (13/50351-4, 17/14620-1)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

LEITE, Luan de Souza. Cultivation of Chlorella sorokiniana using municipal and swine wastewater and biomass harvesting by flocculation and dissolved air flotation (DAF). 2019. Master's Dissertation - Universidade de São Paulo (USP). Escola de Engenharia de São Carlos (EESC/SBD) São Carlos.