Recycling Treated Municipal Wastewater for Industrial Water Use

Recycling Treated Municipal Wastewater for Industrial Water Use Recycling Treated Municipal Wastewater for Industrial Water Use

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Secondary Treatment Assumptions Suspended, Colloidal & Dissolved Solids Removal Residual Suspended Solids Removal Residual Colloidal Solids Removal Residual Dissolved Solids Removal Residual and Specific Trace Constituent Removal Disinfection Adapted from Metcalf & Eddy, 2007 Conventional Secondary Treatment Facility with Nutrient Removal (Base WWTP) Microfiltration Depth Filtration Coagulation/Flocculation/ Sedimentation Surface Filtration Microfiltration Ultrafiltration Membrane Secondary Treatment Facility with Nutrient Removal Dissolved Air Flotation Nanofiltration Reverse Osmosis Electrodialysis Ion Exchange Carbon Adsorption Advanced Oxidation Chlorination Ultraviolet Radiation Ozone Residual Disinfection Water to Reuse Customer Figure D-7f. Tertiary 4 – Advanced with Ion Exchange Treatment Train as Basis of Cost

Secondary Treatment Assumptions Suspended, Colloidal & Dissolved Solids Removal Residual Suspended Solids Removal Residual Colloidal Solids Removal Residual Dissolved Solids Removal Residual and Specific Trace Constituent Removal Disinfection Adapted from Metcalf & Eddy, 2007 Conventional Secondary Treatment Facility with Nutrient Removal (Base WWTP) Microfiltration Depth Filtration Coagulation/Flocculation/ Sedimentation Surface Filtration Microfiltration Ultrafiltration Membrane Secondary Treatment Facility with Nutrient Removal Dissolved Air Flotation Nanofiltration Reverse Osmosis Electrodialysis Ion Exchange Carbon Adsorption Advanced Oxidation* Chlorination Ultraviolet Radiation* Ozone Residual Disinfection Water to Reuse Customer *UV can precede reverse osmosis; one advanced oxidation process is UV and hydrogen peroxide; cost model for study is based on Tertiary 3 water with UV only Figure D-7g. Tertiary 4 – Advanced with UV Treatment Train as Basis of Cost

Secondary<br />

Treatment<br />

Assumptions<br />

Suspended,<br />

Colloidal &<br />

Dissolved<br />

Solids<br />

Removal<br />

Residual<br />

Suspended<br />

Solids<br />

Removal<br />

Residual<br />

Colloidal<br />

Solids<br />

Removal<br />

Residual<br />

Dissolved<br />

Solids<br />

Removal<br />

Residual and<br />

Specific Trace<br />

Constituent<br />

Removal<br />

Disinfection<br />

Adapted from Metcalf & Eddy, 2007<br />

Conventional Secondary Treatment<br />

Facility with Nutrient Removal<br />

(Base WWTP)<br />

Microfiltration Depth<br />

Filtration<br />

Coagulation/Flocculation/<br />

Sedimentation<br />

Surface<br />

Filtration<br />

Microfiltration Ultrafiltration<br />

Membrane Secondary Treatment<br />

Facility with Nutrient Removal<br />

Dissolved Air<br />

Flotation<br />

Nanofiltration Reverse Osmosis Electrodialysis<br />

Ion Exchange Carbon Adsorption Advanced Oxidation*<br />

Chlorination Ultraviolet Radiation* Ozone<br />

Residual Disinfection<br />

<strong>Water</strong> to Reuse Customer<br />

*UV can precede reverse osmosis;<br />

one advanced oxidation process<br />

is UV and hydrogen peroxide;<br />

cost model <strong>for</strong> study is based on<br />

Tertiary 3 water with UV only<br />

Figure D-7g. Tertiary 4 – Advanced with UV Treatment Train as Basis of Cost

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