Abstract
We have developed a probabilistic model to simulate the fate and transport of nonconservative constituents in urban watersheds. The approach implemented here extends previous studies that rely on the geomorphological instantaneous unit hydrograph concept to include nonconservative constituents. This is implemented with a factor χ that affects the transfer functions and therefore accounts for the loss (gain) of mass associated with the constituent as it travels through the watershed. Using this framework, we developed an analytical solution for the dynamics of dissolved oxygen (DO) and biochemical oxygen demand (BOD) in urban networks based on the Streeter and Phelps model. This model breaks down the catchment into a discreet number of possible flow paths through the system, requiring less data and implementation effort than well-established deterministic models. Application of the model to one sewer catchment in the Chicago area with available BOD information proved its ability to predict the BOD concentration observed in the measurements. In addition, comparison of the model with a calibrated Storm Water Management Model (SWMM) of another sewer catchment from the Chicago area showed that the model predicted the BOD concentration as well as the widely accepted SWMM. The developed model proved to be a suitable alternative to simulate the fate and transport of constituents in urban catchments with limited and uncertain input data.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 9164-9181 |
| Number of pages | 18 |
| Journal | Water Resources Research |
| Volume | 52 |
| Issue number | 11 |
| DOIs | |
| State | Published - Nov 1 2016 |
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Keywords
- biochemical oxygen demand
- combined sewers
- constituents
- dissolved oxygen
- urban watershed
ASJC Scopus subject areas
- Water Science and Technology
Cite this
Innovative framework to simulate the fate and transport of nonconservative constituents in urban combined sewer catchments. / Morales, V. M.; Quijano, J. C.; Schmidt, Arthur R; Garcia, Marcelo Horacio.
In: Water Resources Research, Vol. 52, No. 11, 01.11.2016, p. 9164-9181.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Innovative framework to simulate the fate and transport of nonconservative constituents in urban combined sewer catchments
AU - Morales, V. M.
AU - Quijano, J. C.
AU - Schmidt, Arthur R
AU - Garcia, Marcelo Horacio
PY - 2016/11/1
Y1 - 2016/11/1
N2 - We have developed a probabilistic model to simulate the fate and transport of nonconservative constituents in urban watersheds. The approach implemented here extends previous studies that rely on the geomorphological instantaneous unit hydrograph concept to include nonconservative constituents. This is implemented with a factor χ that affects the transfer functions and therefore accounts for the loss (gain) of mass associated with the constituent as it travels through the watershed. Using this framework, we developed an analytical solution for the dynamics of dissolved oxygen (DO) and biochemical oxygen demand (BOD) in urban networks based on the Streeter and Phelps model. This model breaks down the catchment into a discreet number of possible flow paths through the system, requiring less data and implementation effort than well-established deterministic models. Application of the model to one sewer catchment in the Chicago area with available BOD information proved its ability to predict the BOD concentration observed in the measurements. In addition, comparison of the model with a calibrated Storm Water Management Model (SWMM) of another sewer catchment from the Chicago area showed that the model predicted the BOD concentration as well as the widely accepted SWMM. The developed model proved to be a suitable alternative to simulate the fate and transport of constituents in urban catchments with limited and uncertain input data.
AB - We have developed a probabilistic model to simulate the fate and transport of nonconservative constituents in urban watersheds. The approach implemented here extends previous studies that rely on the geomorphological instantaneous unit hydrograph concept to include nonconservative constituents. This is implemented with a factor χ that affects the transfer functions and therefore accounts for the loss (gain) of mass associated with the constituent as it travels through the watershed. Using this framework, we developed an analytical solution for the dynamics of dissolved oxygen (DO) and biochemical oxygen demand (BOD) in urban networks based on the Streeter and Phelps model. This model breaks down the catchment into a discreet number of possible flow paths through the system, requiring less data and implementation effort than well-established deterministic models. Application of the model to one sewer catchment in the Chicago area with available BOD information proved its ability to predict the BOD concentration observed in the measurements. In addition, comparison of the model with a calibrated Storm Water Management Model (SWMM) of another sewer catchment from the Chicago area showed that the model predicted the BOD concentration as well as the widely accepted SWMM. The developed model proved to be a suitable alternative to simulate the fate and transport of constituents in urban catchments with limited and uncertain input data.
KW - biochemical oxygen demand
KW - combined sewers
KW - constituents
KW - dissolved oxygen
KW - urban watershed
UR - http://www.scopus.com/inward/record.url?scp=85006168563&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85006168563&partnerID=8YFLogxK
U2 - 10.1002/2016WR018807
DO - 10.1002/2016WR018807
M3 - Article
AN - SCOPUS:85006168563
VL - 52
SP - 9164
EP - 9181
JO - Water Resources Research
JF - Water Resources Research
SN - 0043-1397
IS - 11
ER -