Wastewater Case Studies and Whitepapers

  1. Odor Problems Solved At Santa Margarita Water District’s Chiquita Water Reclamation Plant In Orange County, CA
    12/5/2017

    Santa Margarita Water District (SMWD) is the second largest water district in Orange County, California, providing water and wastewater services to more than 155,000 residents and commercial enterprises. When a new housing development was planned adjacent to SMWD’s 9.0 MGD Chiquita Water Reclamation Plant, the District initiated plans for enhanced odor control solutions. District staff identified the primary process area (grit removal and primary clarifiers) as a significant contributor to odor emissions.

  2. Two Products Combine To Provide An Enhanced Nutrient Removal Advantage To Protect Our Waterways
    3/23/2018

    Cherokee County, GA, conducted an extensive on-site pilot evaluation of several available process options and technologies, including various plate settler designs. Read the full case study to learn how enhanced nutrient removal (ENR) integrated design continues to deliver water quality of <0.1 mg/L Ammonia, <0.07 mg/L Phosphorus and <0.5 NTU. Not only does the WWTP consistently meet EPA direct discharge limits on BOD, Total Nitrogen, Phosphorus and Turbidity, but these final effluent values readily exceed surface water discharge permits levels.

  3. LowFlow® FlexRake Eliminates Rag Bypass
    2/16/2018

    The Roaring Fork Water & Sanitation District WWTP receives residential activated sludge at an ultimate site capacity of 1 MGD.

  4. Monster Keeps Wipes At Bay In Billerica, MA
    4/19/2018

    Billerica, Massachusetts embodies an ideal American suburb – picturesque streets, quaint houses, inviting storefronts and a central city square perfect for socializing with fellow neighbors and visitors. Located just 50 minutes north of Boston, Billerica is also a prime spot for young families who want the convenience of a close-by city with the atmosphere of a restful community.

  5. WWTP’s Screw Press Reduces Odors, Saves Money, And Takes Up Less Physical Space
    1/6/2017

    A WWTP chooses a new screw press that takes up less than half the space that the old belt press had occupied. This was striking for the operations team but not as striking as the fraction of time they needed to spend managing the screw press.

  6. Corrosion In Wastewater Systems: More Than One Bug
    8/31/2012

    The role of various bacteria in the destruction of concrete in wastewater systems has been recognized since 1945. Already susceptible to old age, wastewater infrastructure systems are also threatened by corrosive bacteria — but they needn't be. By Heather Ramsey, John Davis, and Gary Hall

  7. Top-Entry Agitators Keep Costs Low, Combat Pollution
    1/9/2014

    As the drainage basin to 85 million people, the Baltic Sea has faced considerable environmental strain for many years. Updated regulations to reduce levels of phosphorous and nitrogen prompted the Central Wastewater Treatment Plant in Saint Petersburg, Russia, to install new top-entry agitators in its aeration basins. By optimizing thrust and bulk flow, the updated plant now combats pollution by treating 400 MGD of wastewater while keeping energy costs to a minimum.

  8. Treatment System Achieves 96.5 Percent Reduction In BOD Strength
    4/23/2014

    Anderson Valley Brewing Company had acquired a several different aeration technologies in their treatment ponds over the years including surface aspirators and a diffuser system. They were interested in increasing treatment capacity so they could irrigate using reclaimed wastewater. After discovering ClearBlu and visiting an existing installation they decided to incrementally add UltraFine Bubble aerators to increase treatment.

  9. Upgrade To Diffused Aeration Results In Significant Energy Savings
    12/12/2013

    After 35 years of use,  the fiberglass jet aeration manifolds in the Western Regional Water Reclamation Plant (Dayton, Ohio) had deteriorated, rendering four of eight wastewater aeration tanks inoperable. Managers recognized an opportunity to utilize a fine bubble diffused aeration system that eliminated the need for the pumps. The result: higher oxygen-transfer efficiency and reduced power costs to operate the system.

  10. Eliminating Sludge Islands In Your Wastewater Lagoon
    12/12/2013

    Old municipal and industrial wastewater lagoons have the tendency to build islands of sludge at various locations around the lagoon. It is most common for older lagoons to build such islands wherever wastewater enters the lagoons. By Jim Dartez