Wastewater Filtration Resources

81. Automation Solutions For Fixed-Bed Filters 2/5/2015

    Handwheel or automated process valve? The worldwide trend is clearly moving towards automation, because it reduces energy and water consumption, especially rinsing water, and increases plant availability. Pneumatic automation of a fixed-bed filter is a good example of this.

82. Ultrafiltration Stormwater Recovery System At Cincinnati Zoo Reaches Optimal Performance 1/28/2015

    The Cincinnati Zoo uses an ultrafiltration system (UF) to treat stormwater. The reclaimed water is collected from 14 acres of the park, including parking lots, animal exhibit yards, rooftop drains, and walking path storm drains

83. SuperDisc™ Filtration System Case Study 12/28/2014

    Glendale Heights Wastewater Treatment Plant discharges treated water to the East Branch of the DuPage River in Illinois.

84. AltaPac™ AP-II Ultrafiltration Membrane Case Study 12/23/2014

    Cibola is a small community located in Southern Arizona along the Colorado River. With a growing population, the community decided to install a centralized water system to replace individual wells.

85. Antiscalant Impacts Water Reclamation Efforts 12/17/2014

    Water reuse efforts in the West Coast are a priority and have the Ground Water Replenishing System (GWRS) of the Orange County Water District (OCWD) utilizing new technologies for water conservation. 

86. Sturbridge POTW: Greater Capacity For High Flow Events, Enhanced Clarification For New Regulations 12/16/2014

    Sturbridge, Massachusetts historically suffered from periodic blooms of filamentous bacteria that caused bulking in the secondary clarifiers of their three activated sludge package plants.

87. Concord, Massachusetts WWTP - A Low-Cost, 20-Year Solution To Ever-Tightening Phosphorus Limits 12/16/2014

    Prior to 2007, Concord, Massachusetts wastewater treatment plant operated under a NPDES permit that allowed a seasonal phosphorus limit of 0.7 mg/L. But with the issuance of a new five-year permit with a phosphorus limit of 0.2 mg/L and the probability that future limits could reach as low as 0.05 mg/L, Concord needed a treatment solution that would be reliable and cost-effective today and over the long term.

88. AnoxKaldnes Hybas™: Meeting New Limits 10/27/2014

    In 2008, AnoxKaldnes Hybas™ designs were completed by Veolia for the upgrade of the Field’s Point Wastewater Treatment Facility to meet new seasonal effluent limits for TN and TIN.

89. Pilot Studies In North Carolina With Hydrex™ Odor Solutions 10/17/2014

    Two municipalities were faced with odor issues and required corrosion prevention in their collection systems. Monitoring in the sewer lines indicated peak H₂S atmospheric concentrations of 300-500 ppm. Both clients desired H₂S < 20 mg/L to prevent corrosion and preferably lower to prevent H2S odor.

90. Two AquaDisk Cloth Media Filters Replace Six Granular Media Units, Boosting Capacity 540% And Cutting Backwash Volume By 97% 8/14/2014

    The Portland, Indiana, Wastewater Treatment Plant (WWTP) had been using six granular-media filter units for tertiary treatment since the 1980s. The plant’s treatment protocol includes fine screens for grit removal, followed by primary clarifiers, trickling filters, aeration basins, secondary clarifiers, the tertiary treatment system, and then chlorine disinfection.