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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Wastewater post-treatment for simultaneous ammonium removal and elemental sulfur recovery using a novel horizontal mixed aerobic anoxic fixed-bed reactor configuration

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Author(s):
Guerrero, R. B. S. [1] ; Zaiat, M. [1]
Total Authors: 2
Affiliation:
[1] Univ Sao Paulo EESC USP, Biol Proc Lab, Ctr Res Dev & Innovat Environm Engn, Sao Carlos Sch Engn, Ave Joao Dagnone 1100, BR-11563120 Sao Carlos, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Journal of Environmental Management; v. 215, p. 358-365, JUN 1 2018.
Web of Science Citations: 4
Abstract

A novel horizontal mixed anoxic-aerobic fixed-bed reactor configuration based on nitrification coupled with autotrophic denitrification using hydrogen sulfide as an electron donor was developed. The nitrification removal efficiency (RE) reached values greater than 99% but was slightly affected by the accumulation of dissolved sulfur species in the liquid phase. The denitrification RE reached 99% with a H2S inlet load of 28.6 g S M-3 h(-1), although the use of aluminum polychloride (PAC) as a sulfur coagulant in the anoxic zone affected the buffering capacity of the system and resulted in a decrease in the RE. The performance of the reactor was primarily affected by the buffering capacity of the system, and this effect could be controlled with an increase in the NaHCO3 concentration. The recovery of biogenic elemental sulfur was possible using PAC as a coagulant, although the solid collected at the bottom of the settling tank contained only 1.5% S-0. (C) 2018 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 15/18976-0 - WASTEWATER POST-TREATMENT FOR NITROGEN COMPOUNDS REMOVAL USING A HORIZONTAL ANOXIC-AEROBIC REACTOR FEEDING WITH BIOGAS AND AIR
Grantee:Renata de Bello Solcia Guerrero
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 15/06246-7 - Biorefinery concept applied to biological wastewater treatment plants: environmental pollution control coupled with material and energy recovery
Grantee:Marcelo Zaiat
Support Opportunities: Research Projects - Thematic Grants