Nitrous oxide emissions in a membrane bioreactor treating saline wastewater contaminated by hydrocarbons

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Abstract

The joint effect of wastewater salinity and hydrocarbons on nitrous oxide emission was investigated. The membrane bioreactor pilot plant was operated with two phases: i. biomass acclimation by increasing salinity from 10 gNaCl L−1 to 20 gNaCl L−1 (Phase I); ii. hydrocarbons dosing at 20 mg L−1 with a constant salt concentration of 20 gNaCl L−1 (Phase II). The Phase I revealed a relationship between nitrous oxide emissions and salinity. During the end of the Phase I, the activity of nitrifiers started to recover, indicating a partial acclimatization. During the Phase II, the hydrocarbon shock induced a temporary inhibition of the biomass with the suppression of nitrous oxide emissions. The results revealed that the oxic tank was the major source of nitrous oxide emission, likely due to the gas stripping by aeration. The joint effect of salinity and hydrocarbons was found to be crucial for the production of nitrous oxide
Lingua originaleEnglish
pagine (da-a)289-297
Numero di pagine9
RivistaBioresource Technology
Volume219
Stato di pubblicazionePublished - 2016

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Nitrous Oxide
Hydrocarbons
Bioreactors
nitrous oxide
bioreactor
Wastewater
hydrocarbon
membrane
Membranes
wastewater
Oxides
salinity
acclimation
Biomass
biomass
Pilot plants
aeration
Salts
Gases
salt

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

Cita questo

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title = "Nitrous oxide emissions in a membrane bioreactor treating saline wastewater contaminated by hydrocarbons",
abstract = "The joint effect of wastewater salinity and hydrocarbons on nitrous oxide emission was investigated. The membrane bioreactor pilot plant was operated with two phases: i. biomass acclimation by increasing salinity from 10 gNaCl L−1 to 20 gNaCl L−1 (Phase I); ii. hydrocarbons dosing at 20 mg L−1 with a constant salt concentration of 20 gNaCl L−1 (Phase II). The Phase I revealed a relationship between nitrous oxide emissions and salinity. During the end of the Phase I, the activity of nitrifiers started to recover, indicating a partial acclimatization. During the Phase II, the hydrocarbon shock induced a temporary inhibition of the biomass with the suppression of nitrous oxide emissions. The results revealed that the oxic tank was the major source of nitrous oxide emission, likely due to the gas stripping by aeration. The joint effect of salinity and hydrocarbons was found to be crucial for the production of nitrous oxide",
author = "Claudia Morici and Giorgio Mannina and Alida Cosenza and Laudicina, {Vito Armando} and {Di Trapani}, Daniele and Hallvard {\O}degaard",
year = "2016",
language = "English",
volume = "219",
pages = "289--297",
journal = "Bioresource Technology",
issn = "0960-8524",
publisher = "Elsevier Limited",

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TY - JOUR

T1 - Nitrous oxide emissions in a membrane bioreactor treating saline wastewater contaminated by hydrocarbons

AU - Morici, Claudia

AU - Mannina, Giorgio

AU - Cosenza, Alida

AU - Laudicina, Vito Armando

AU - Di Trapani, Daniele

AU - Ødegaard, Hallvard

PY - 2016

Y1 - 2016

N2 - The joint effect of wastewater salinity and hydrocarbons on nitrous oxide emission was investigated. The membrane bioreactor pilot plant was operated with two phases: i. biomass acclimation by increasing salinity from 10 gNaCl L−1 to 20 gNaCl L−1 (Phase I); ii. hydrocarbons dosing at 20 mg L−1 with a constant salt concentration of 20 gNaCl L−1 (Phase II). The Phase I revealed a relationship between nitrous oxide emissions and salinity. During the end of the Phase I, the activity of nitrifiers started to recover, indicating a partial acclimatization. During the Phase II, the hydrocarbon shock induced a temporary inhibition of the biomass with the suppression of nitrous oxide emissions. The results revealed that the oxic tank was the major source of nitrous oxide emission, likely due to the gas stripping by aeration. The joint effect of salinity and hydrocarbons was found to be crucial for the production of nitrous oxide

AB - The joint effect of wastewater salinity and hydrocarbons on nitrous oxide emission was investigated. The membrane bioreactor pilot plant was operated with two phases: i. biomass acclimation by increasing salinity from 10 gNaCl L−1 to 20 gNaCl L−1 (Phase I); ii. hydrocarbons dosing at 20 mg L−1 with a constant salt concentration of 20 gNaCl L−1 (Phase II). The Phase I revealed a relationship between nitrous oxide emissions and salinity. During the end of the Phase I, the activity of nitrifiers started to recover, indicating a partial acclimatization. During the Phase II, the hydrocarbon shock induced a temporary inhibition of the biomass with the suppression of nitrous oxide emissions. The results revealed that the oxic tank was the major source of nitrous oxide emission, likely due to the gas stripping by aeration. The joint effect of salinity and hydrocarbons was found to be crucial for the production of nitrous oxide

UR - http://hdl.handle.net/10447/202983

UR - http://www.elsevier.com/locate/biortech

M3 - Article

VL - 219

SP - 289

EP - 297

JO - Bioresource Technology

JF - Bioresource Technology

SN - 0960-8524

ER -