Potable Reuse: Defining Source Water Quality Requirement

2014 ◽  
Vol 2014 (11) ◽  
pp. 5505-5520
Author(s):  
Allegra da Silva ◽  
Eileen Navarrete ◽  
Katherine Bell
Keyword(s):  
Water Quality ◽  
Source Water ◽  
Quality Requirement ◽  
Potable Reuse ◽  
Source Water Quality

NASA-Modified Precipitation Products to Improve USEPA Nonpoint Source Water Quality Modeling for the Chesapeake Bay

2010 ◽  
Vol 39 (4) ◽  
pp. 1388-1401 ◽  
Author(s):  
Nigro Joseph ◽  
Toll David ◽  
Partington Ed ◽  
Wenge Ni-Meister ◽  
Lee Shihyan ◽  
...  
Keyword(s):  
Water Quality ◽  
Chesapeake Bay ◽  
Nonpoint Source ◽  
Water Quality Modeling ◽  
Source Water ◽  
Quality Modeling ◽  
Source Water Quality

Source water impact model (SWIM) - a watershed guided approach as a new planing tool for indirect potable water reuse

2001 ◽  
Vol 43 (10) ◽  
pp. 267-275 ◽  
Author(s):  
J. E. Drewes ◽  
P. Fox
Keyword(s):  
Water Quality ◽  
Water Reuse ◽  
Reclaimed Water ◽  
Water Sources ◽  
Distribution Data ◽  
Source Water ◽  
Impact Model ◽  
Water Impact ◽  
Potable Reuse ◽  
The Impact

The scope of this study was to develop a model to assess the impact of source water quality on reclaimed water used for indirect potable reuse. The source water impact model (SWIM) considered source water qualities, water supply distribution data, water use and the impact of wastewater treatment to calculate reclaimed water quality. It was applied for sulfate, chloride, and dissolved organic carbon (DOC) at four water reuse sites in Arizona and California. SWIM was able to differentiate between the amount of salts derived by drinking water sources and the amount added by consumers. At all sites, the magnitude of organic residuals in reclaimed water was strongly effected by the concentration of organics in corresponding water sources and effluent-derived organic matter. SWIM can be used as a tool to predict reclaimed water quality in existing or planned water reuse systems.

scholarly journals Trihalomethane precursor reactivity changes in drinking water treatment unit processes during a storm event

2019 ◽  
Vol 19 (7) ◽  
pp. 2098-2106
Author(s):  
Chelsea W. Neil ◽  
Yingying Zhao ◽  
Amy Zhao ◽  
Jill Neal ◽  
Maria Meyer ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Treatment ◽  
Treatment Plant ◽  
Drinking Water Treatment ◽  
Plant Performance ◽  
Storm Event ◽  
Source Water ◽  
Treatment Unit ◽  
Source Water Quality

Abstract Source water quality can significantly impact the efficacy of water treatment unit processes and the formation of chlorinated and brominated trihalomethanes (THMs). Current water treatment plant performance models may not accurately capture how source water quality variations, such as organic matter variability, can impact treatment unit processes. To investigate these impacts, a field study was conducted wherein water samples were collected along the treatment train for 72 hours during a storm event. Systematic sampling and detailed analyses of water quality parameters, including non-purgeable organic carbon (NPOC), UV absorbance, and THM concentrations, as well as chlorine spiking experiments, reveal how the THM formation potential changes in response to treatment unit processes. Results show that the NPOC remaining after treatment has an increased reactivity towards forming THMs, and that brominated THMs form more readily than chlorinated counterparts in a competitive reaction. Thus both the reactivity and quantity of THM precursors must be considered to maintain compliance with drinking water standards, a finding that should be incorporated into the development of model-assisted treatment operation and optimization. Advanced granular activated carbon (GAC) treatment beyond conventional coagulation–flocculation–sedimentation processes may also be necessary to remove the surge loading of THM-formation precursors during a storm event.

Effectively Managing Source Water Quality Affecting Downstream Recycled Water Treatment Plants

2014 ◽  
Vol 2014 (14) ◽  
pp. 2625-2640
Author(s):  
Alice E. Towey ◽  
John M. Hake ◽  
Erika R. Gardner ◽  
Joseph A. Augustine
Keyword(s):  
Water Quality ◽  
Water Treatment ◽  
Source Water ◽  
Recycled Water ◽  
Water Treatment Plants ◽  
Source Water Quality
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