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.)

Inactivation of Clostridium perfringens, Total Coliforms, and Escherichia coli by UV/H2O2 in Wastewater Treatment Plant Effluent

Author(s):
Guimaraes, Jose Roberto [1] ; Guadagnini, Regiane Aparecida [1] ; Bueno Franco, Regina Maura [2] ; dos Santos, Luciana Urbano [1, 3]
Total Authors: 4
Affiliation:
[1] Univ Campinas UNICAMP, Dept Sanitat & Environm, Sch Civil Engn Architecture & Urban Design, POB 6143, BR-13083889 Campinas, SP - Brazil
[2] Univ Campinas UNICAMP, Inst Biol, Dept Anim Biol, Lab Protozool, POB 6109, BR-13083970 Campinas, SP - Brazil
[3] Padre Anchieta Univ Ctr UNIANCHIETA, 100-140 Bom Jesus Pirapora St, BR-13207270 Jundiai, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: JOURNAL OF ADVANCED OXIDATION TECHNOLOGIES; v. 19, n. 1, p. 93-97, JAN 31 2016.
Web of Science Citations: 2
Abstract

This study evaluated the effectiveness of H2O2, UV radiation, and H2O2/UV processes to inactivate total coliforms, Escherichia coli, and Clostridium perfringens bacteria present in a treated sewage. The samples were collected at Samambaia Waste Water Treatment Plant in Campinas, Brazil. The photochemical assays were carried out using 125-3,640 mJ cm(-2) doses of UV radiation. The initial H2O2 concentration was 30 mg L-1. The bacteria were quantified in samples of 100% raw effluent, which had an average of 1.1 x. 10(6) most probable number (MPN)/100 mL of total coliforms, 2.3 x 10(5) MPN/100 mL of E. coli, and 1.4 x 10(4) MPN/100 mL of C. perfringens after treatment with activated sludge. Peroxidation did not efficiently inactivate the measured bacteria. The UV process incurred 5-log inactivation for total coliforms and E. coli bacteria, whereas advanced oxidation processes (AOPs) inactivated both bacteria. UV radiation and AOP incurred a 2-log inactivation of C. perfringens. (AU)

FAPESP's process: 12/50522-0 - Environmental contamination by protozoa Giardia spp. and Cryptosporidium spp. and Ascaris suum: challenges of detection, removal and inactivation of infective forms
Grantee:Regina Maura Bueno Franco
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 10/15550-8 - Advanced Oxidative Process for the disinfection of treated wastewater: helminths, protozoa and bacteria
Grantee:Regiane Aparecida Guadagnini
Support Opportunities: Scholarships in Brazil - Doctorate