Endocrine disrupting chemicals removal in an aerobic granular sludge reactor treating simulated saline wastewater

Cyntia Ely; Irina S. Moreira; João Paulo Bassin; Márcia W. C. Dezotti; Paula M. L. Castro

Abstract

The occurrence of Endocrine disrupting chemicals (EDCs) in the environment is a topic of concern. It is commonly accepted that the major source of EDCs to the environment is wastewater treatment plants effluents. Salinity is an additional common stress factor in wastewater treatment. Aerobic granular sludge (AGS) has a number of properties that make it more attractive than conventional biological systems for treatment of wastewater containing EDCs. In the present study, an AGS sequencing batch reactor adapted to salinity was operated for 140 days for treating synthetic saline wastewater containing 17β–estradiol (E2), 17α–ethinylestradiol (EE2) and bisphenol-A (BPA). E2 was removed by biodegradation. EE2 adsorption/desorption to the aerobic granules was observed. The increasing of BPA removal efficiency after bioaugmentation with a degrading bacterial strain shows that biodegradation was the removal mechanism. COD removal was not significantly affected by EDCs shock loads. Activity of ammonia oxidizing bacteria and nitrite oxidizing bacteria did not seem to be inhibited by the presence of EDCs. The activity of phosphate accumulating organisms was affected.

Original language	English
Number of pages	1
Publication status	Published - 2021
Event	European Federation of Biotechnology 2021 virtual conference - Online, Spain Duration: 10 May 2021 → 14 May 2021

Conference

Conference	European Federation of Biotechnology 2021 virtual conference
Abbreviated title	EFB 2021
Country/Territory	Spain
Period	10/05/21 → 14/05/21

Keywords

Aerobic granular sludge
Endocrine disrupting chemicals
Saline wastewater
Bioaugmentation
Bioreactor performance

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

41254417Final published version, 607 KBLicence: Unspecified

http://hdl.handle.net/10400.14/37497Licence: Unspecified

AGeNT: Aerobic granule technology combined with selected microbial agents for the degradation of toxic wastewater pollutants
Castro, P. M. L. (PI), Amorim, C. L. (Researcher), Paulo, A. (Researcher), Oliveira, A. S. (Researcher), Moreira, I. S. (Researcher) & Pereira, S. (Contracted Doctorate)
1/07/18 → 31/12/21
Project: Research

File

Cite this

@conference{d70031f020294db58f05a7e878febc58,

title = "Endocrine disrupting chemicals removal in an aerobic granular sludge reactor treating simulated saline wastewater",

abstract = "The occurrence of Endocrine disrupting chemicals (EDCs) in the environment is a topic of concern. It is commonly accepted that the major source of EDCs to the environment is wastewater treatment plants effluents. Salinity is an additional common stress factor in wastewater treatment. Aerobic granular sludge (AGS) has a number of properties that make it more attractive than conventional biological systems for treatment of wastewater containing EDCs. In the present study, an AGS sequencing batch reactor adapted to salinity was operated for 140 days for treating synthetic saline wastewater containing 17β–estradiol (E2), 17α–ethinylestradiol (EE2) and bisphenol-A (BPA). E2 was removed by biodegradation. EE2 adsorption/desorption to the aerobic granules was observed. The increasing of BPA removal efficiency after bioaugmentation with a degrading bacterial strain shows that biodegradation was the removal mechanism. COD removal was not significantly affected by EDCs shock loads. Activity of ammonia oxidizing bacteria and nitrite oxidizing bacteria did not seem to be inhibited by the presence of EDCs. The activity of phosphate accumulating organisms was affected.",

keywords = "Aerobic granular sludge, Endocrine disrupting chemicals, Saline wastewater, Bioaugmentation, Bioreactor performance",

author = "Cyntia Ely and Moreira, {Irina S.} and Bassin, {Jo{\~a}o Paulo} and Dezotti, {M{\'a}rcia W. C.} and Castro, {Paula M. L.}",

year = "2021",

language = "English",

note = "European Federation of Biotechnology 2021 virtual conference , EFB 2021 ; Conference date: 10-05-2021 Through 14-05-2021",

}

TY - CONF

T1 - Endocrine disrupting chemicals removal in an aerobic granular sludge reactor treating simulated saline wastewater

AU - Ely, Cyntia

AU - Moreira, Irina S.

AU - Bassin, João Paulo

AU - Dezotti, Márcia W. C.

AU - Castro, Paula M. L.

PY - 2021

Y1 - 2021

N2 - The occurrence of Endocrine disrupting chemicals (EDCs) in the environment is a topic of concern. It is commonly accepted that the major source of EDCs to the environment is wastewater treatment plants effluents. Salinity is an additional common stress factor in wastewater treatment. Aerobic granular sludge (AGS) has a number of properties that make it more attractive than conventional biological systems for treatment of wastewater containing EDCs. In the present study, an AGS sequencing batch reactor adapted to salinity was operated for 140 days for treating synthetic saline wastewater containing 17β–estradiol (E2), 17α–ethinylestradiol (EE2) and bisphenol-A (BPA). E2 was removed by biodegradation. EE2 adsorption/desorption to the aerobic granules was observed. The increasing of BPA removal efficiency after bioaugmentation with a degrading bacterial strain shows that biodegradation was the removal mechanism. COD removal was not significantly affected by EDCs shock loads. Activity of ammonia oxidizing bacteria and nitrite oxidizing bacteria did not seem to be inhibited by the presence of EDCs. The activity of phosphate accumulating organisms was affected.

AB - The occurrence of Endocrine disrupting chemicals (EDCs) in the environment is a topic of concern. It is commonly accepted that the major source of EDCs to the environment is wastewater treatment plants effluents. Salinity is an additional common stress factor in wastewater treatment. Aerobic granular sludge (AGS) has a number of properties that make it more attractive than conventional biological systems for treatment of wastewater containing EDCs. In the present study, an AGS sequencing batch reactor adapted to salinity was operated for 140 days for treating synthetic saline wastewater containing 17β–estradiol (E2), 17α–ethinylestradiol (EE2) and bisphenol-A (BPA). E2 was removed by biodegradation. EE2 adsorption/desorption to the aerobic granules was observed. The increasing of BPA removal efficiency after bioaugmentation with a degrading bacterial strain shows that biodegradation was the removal mechanism. COD removal was not significantly affected by EDCs shock loads. Activity of ammonia oxidizing bacteria and nitrite oxidizing bacteria did not seem to be inhibited by the presence of EDCs. The activity of phosphate accumulating organisms was affected.

KW - Aerobic granular sludge

KW - Endocrine disrupting chemicals

KW - Saline wastewater

KW - Bioaugmentation

KW - Bioreactor performance

M3 - Abstract

T2 - European Federation of Biotechnology 2021 virtual conference

Y2 - 10 May 2021 through 14 May 2021

ER -