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Including greenhouse gas emissions during benchmarking of wastewater treatment plant control strategies

Flores, Xavier LU ; Corrominas, L.; Snip, L. and Vanrolleghem, P.A. (2011) In Water Research 45(16). p.4700-4710
Abstract
The main objective of this paper is to demonstrate how greenhouse gas (GHG) emissions can be quantified during the evaluation of control strategies in wastewater treatment plants (WWTP). A modified version of the IWA Benchmark Simulation Model No 2 (BSM2G) is hereby used as a simulation case study. Thus, the traditional effluent quality index (EQI), operational cost index (OCI) and time in violation (TIV) used to evaluate control strategies in WWTP are complemented with a new dimension dealing with GHG emissions. The proposed approach is based on a set of comprehensive models that estimate all potential on-site and off-site sources of GHG emissions. The case study investigates the overall performance of several control strategies and... (More)
The main objective of this paper is to demonstrate how greenhouse gas (GHG) emissions can be quantified during the evaluation of control strategies in wastewater treatment plants (WWTP). A modified version of the IWA Benchmark Simulation Model No 2 (BSM2G) is hereby used as a simulation case study. Thus, the traditional effluent quality index (EQI), operational cost index (OCI) and time in violation (TIV) used to evaluate control strategies in WWTP are complemented with a new dimension dealing with GHG emissions. The proposed approach is based on a set of comprehensive models that estimate all potential on-site and off-site sources of GHG emissions. The case study investigates the overall performance of several control strategies and demonstrates that substantial reductions in effluent pollution, operating costs and GHG emissions can be achieved when automatic control is implemented. Furthermore, the study is complemented with a scenario analysis that examines the role of i) the dissolved oxygen (DO) set-point, ii) the sludge retention time (SRT) and iii) the organic carbon/nitrogen ratio (COD/N) as promoters of GHG emissions. The results of this study show the potential mechanisms that promote the formation of CO2, CH4 and N2O when different operational strategies are implemented, the existing synergies and trade-offs amongst the EQI, the OCI and TIV criteria and finally the need to reach a compromise solution to achieve an optimal plant performance. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Activated sludge modeling, Benchmarking, Global warming, Model-based evaluation, Multi-criteria decision making, Process control, Sustainability
in
Water Research
volume
45
issue
16
pages
4700 - 4710
publisher
Elsevier
external identifiers
  • Scopus:80052263339
ISSN
1879-2448
DOI
10.1016/j.watres.2011.04.040
language
English
LU publication?
yes
id
721a69c3-1bc2-4427-9c65-482b9fe0d2ce (old id 4810545)
date added to LUP
2014-11-20 14:54:00
date last changed
2016-10-13 04:27:39
@misc{721a69c3-1bc2-4427-9c65-482b9fe0d2ce,
  abstract     = {The main objective of this paper is to demonstrate how greenhouse gas (GHG) emissions can be quantified during the evaluation of control strategies in wastewater treatment plants (WWTP). A modified version of the IWA Benchmark Simulation Model No 2 (BSM2G) is hereby used as a simulation case study. Thus, the traditional effluent quality index (EQI), operational cost index (OCI) and time in violation (TIV) used to evaluate control strategies in WWTP are complemented with a new dimension dealing with GHG emissions. The proposed approach is based on a set of comprehensive models that estimate all potential on-site and off-site sources of GHG emissions. The case study investigates the overall performance of several control strategies and demonstrates that substantial reductions in effluent pollution, operating costs and GHG emissions can be achieved when automatic control is implemented. Furthermore, the study is complemented with a scenario analysis that examines the role of i) the dissolved oxygen (DO) set-point, ii) the sludge retention time (SRT) and iii) the organic carbon/nitrogen ratio (COD/N) as promoters of GHG emissions. The results of this study show the potential mechanisms that promote the formation of CO2, CH4 and N2O when different operational strategies are implemented, the existing synergies and trade-offs amongst the EQI, the OCI and TIV criteria and finally the need to reach a compromise solution to achieve an optimal plant performance.},
  author       = {Flores, Xavier and Corrominas, L. and Snip, L. and Vanrolleghem, P.A.},
  issn         = {1879-2448},
  keyword      = {Activated sludge modeling,Benchmarking,Global warming,Model-based evaluation,Multi-criteria decision making,Process control,Sustainability},
  language     = {eng},
  number       = {16},
  pages        = {4700--4710},
  publisher    = {ARRAY(0x86b7430)},
  series       = {Water Research},
  title        = {Including greenhouse gas emissions during benchmarking of wastewater treatment plant control strategies},
  url          = {http://dx.doi.org/10.1016/j.watres.2011.04.040},
  volume       = {45},
  year         = {2011},
}