Sulfate reduction and sulfide oxidation in an UASB reactor combined to a micro-aerobic reactor

• Grant number: 13/13131-6
• Support type: Scholarships abroad - Research Internship - Doctorate
• Effective date (Start): July 30, 2013
• Effective date (End): January 29, 2014
• Field of knowledge: Engineering - Sanitary Engineering - Water Supply and Wastewater Treatment
• Principal researcher: Marcelo Zaiat
• Grantee: Priscila Rosseto Camiloti
• Supervisor abroad: David Jeison
• Home Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Research place: Universidad de La Frontera (UFRO), Chile
• Associated to the scholarship: 11/22904-3 - Elemental sulphur recovery from wastewater in anaerobic-microaerobic combined reactor, BP.DR

Abstract

The sulfide is noted for its corrosive and toxic. The sulfate reduction and oxidation of sulfide to elemental sulfur is a viable alternative to the treatment of waste liquids. The process of oxidation of sulfide to elemental sulfur is performed under low oncentrations of oxygen and it is necessary to control the oxygen concentration in the liquid medium. In such way, the use of porous membranes such as silicone rubber, is a low cost alternative which promotes micro-aeration of the medium. For these reasons, we have chosen to explore the sulfate reduction and sulfide oxidation in a combined system sulfidogenic / micro-aerobic. The reactor evaluated is a UASB reactor combined with a micro-aerobic reactor and the system will be evaluated with the recirculation of gas produced in the micro aerated reactor and also with the silicon membrane under pressure. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

CAMILOTI, PRISCILA ROSSETO; VALDES, FREDDY; DELFORNO, TIAGO PALLADINO; BARTACEK, JAN; ZAIAT, MARCELO; JEISON, DAVID. A membrane aerated biofilm reactor for sulfide control from anaerobically treated wastewater. ENVIRONMENTAL TECHNOLOGY, v. 40, n. 18, p. 2354-2363, AUG 11 2019. Web of Science Citations: 3.