Emerging Technologies Report on Wastewater Treatment (PDF)
Emerging Technologies Report on Wastewater Treatment (PDF)
Emerging Technologies Report on Wastewater Treatment (PDF)
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<str<strong>on</strong>g>Emerging</str<strong>on</strong>g> <str<strong>on</strong>g>Technologies</str<strong>on</strong>g> February 2008<br />
2-2<br />
Table 2.1—Physical/Chemical <strong>Treatment</strong> Processes – State of Development<br />
Established <str<strong>on</strong>g>Technologies</str<strong>on</strong>g><br />
Air Stripping<br />
Screening<br />
� Fine Screening<br />
� Micro Screening<br />
� Rotary Screening<br />
� Step Screening<br />
� Microsieves<br />
Grit Removal<br />
� Traveling Bridge<br />
Fine/Advanced Grit Removal System (AGRS)<br />
HEADCELLTM �<br />
GRITKINGTM �<br />
PISTAGRITTM �<br />
�<br />
HYDROGRIT TM<br />
Flocculati<strong>on</strong><br />
Chemical Precipitati<strong>on</strong>*<br />
� Alum Additi<strong>on</strong><br />
� Ir<strong>on</strong> Salts Additi<strong>on</strong><br />
� Zeolite<br />
High Rate Dissolved Air Flotati<strong>on</strong> (DAF) <strong>Treatment</strong>/Settling<br />
Chemically Enhanced Primary <strong>Treatment</strong><br />
Solids C<strong>on</strong>tact Clarifier for P Removal<br />
I<strong>on</strong>-Exchange<br />
Chemical Oxidati<strong>on</strong>*<br />
� Hydroxyl Radical<br />
� Oxygen (Atomic and Molecular)<br />
� Oz<strong>on</strong>e<br />
� Hydrogen Peroxide<br />
� Hypochlorite/Chlorine/Chlorine Dioxide<br />
Advanced Oxidati<strong>on</strong> Processes<br />
� Supercritical Water Oxidati<strong>on</strong><br />
� Catalytic Oxidati<strong>on</strong><br />
� Photo Catalysis (UV + TiO2) � Fent<strong>on</strong>’s Reagent (H2O2 + Ferrous I<strong>on</strong>)<br />
Electodialysis<br />
Filtrati<strong>on</strong> through Membranes<br />
� Reverse Osmosis<br />
� Microfiltrati<strong>on</strong><br />
� Ultrafiltrati<strong>on</strong><br />
Established <str<strong>on</strong>g>Technologies</str<strong>on</strong>g> (C<strong>on</strong>td)<br />
Filtrati<strong>on</strong> through Media<br />
� Cloth Media<br />
– Disc Filter (DF)<br />
– Drum Filter<br />
– Diam<strong>on</strong>d-Shaped Filters<br />
� Silica Media (One- and Two-Stage)<br />
– C<strong>on</strong>venti<strong>on</strong>al Downflow<br />
– Deep-Bed Downflow Filters<br />
– Deep-Bed Upflow C<strong>on</strong>tinuous Backwash Filters<br />
� Activated Alumina Media<br />
� Powdered Activated Carb<strong>on</strong> (PAC)<br />
� Granular-Activated Carb<strong>on</strong> (GAC)<br />
Denitrificati<strong>on</strong> Filters<br />
Automatic Backwash Filters (ABW ® )<br />
Pulsed Bed Filter<br />
Disinfecti<strong>on</strong><br />
� Oz<strong>on</strong>e<br />
� Chlorine/Chlorine Dioxide/Liquid Chlorine/Dechlorinati<strong>on</strong><br />
� Halogens (Bromine)<br />
� UltraViolet (UV) Disinfecti<strong>on</strong><br />
Innovative <str<strong>on</strong>g>Technologies</str<strong>on</strong>g><br />
Compressible Media Filtrati<strong>on</strong><br />
Nanofiltrati<strong>on</strong><br />
Innovative Use of Established <str<strong>on</strong>g>Technologies</str<strong>on</strong>g><br />
Ballasted High Rate Clarificati<strong>on</strong> (BHRC) Processes*<br />
Actiflo ® � Process<br />
Densadeg ® �<br />
Process<br />
Microwave UV Disinfecti<strong>on</strong><br />
Embry<strong>on</strong>ic <str<strong>on</strong>g>Technologies</str<strong>on</strong>g><br />
Blue CATTM Blue PROTM CoMag TM<br />
Solar Disinfecti<strong>on</strong><br />
Note:<br />
* Chemical phosphorus removal is limited by kinetic<br />
factors as well as stoichiometric factors and excessive<br />
inorganic precipitant requirements need to be<br />
reduced.<br />
<strong>Wastewater</strong> <strong>Treatment</strong> and In-Plant Wet Weather Management
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