Sludge & Biosolids Processing Resources

  1. Is There A Cure For Wastewater's Summertime Blues? 6/25/2018

    As we approach the hottest months of the year, wastewater treatment plant (WWTP) operators face a range of challenges arising from elevated summer temperatures. With all due respect to Eddie Cochran, this article outlines some of the cures — or at least preventive steps and countermeasures — for wastewater treatment’s “summertime blues.”

  2. Start-Up And Operating Tips For Jet Aeration Systems 6/14/2018

    Jet aeration systems are extremely efficient due to their high alpha factor and clean water oxygen transfer performance. Proper start-up, operation, and maintenance will ensure reliable service and a long life.

  3. How Sludge-To-Energy Technology Is Boosting Water Resilience And Slashing Emissions For Cities 5/14/2018

    Growing cities are generating higher volumes of wastewater and putting a strain on clean water supplies, calling for solutions that extract value from “waste” and ensure the sustainability of resources — with the added bonus, or imperative, of protecting the environment.

  4. Sanitary District Generates EPA Award By Turning Trash To Treasure 4/3/2018

    The Greater Lawrence Sanitary District (GLSD) in North Andover, MA, was one of 28 organizations nationwide to be honored for an innovative water or wastewater project in the most recent PISCES Recognition Program sponsored by the Clean Water State Revolving Fund (CWSRF). PISCES stands for Performance and Innovation in the SRF Creating Environmental Success.

  5. 4-Step Wastewater Sludge Treatment Process 4/3/2018

    Sewage sludge is a byproduct of treated wastewater. It is composed of both organic and inorganic materials, a large concentration of plant nutrients, organic chemicals, as well as pathogens. Therefore, it is extremely important to properly treat such sludge in order to minimize its environmental repercussions.

  6. The Challenges Of Combined Heat And Power Generation From Biogas 3/16/2018

    Driven by tight budgets and competing needs for limited CAPEX funds, wastewater treatment plants are increasingly looking to reduce their operating expenses. Many are now referring to themselves as water resource recovery facilities (WRRFs), reflecting a heightened focus on recovering nutrients, methane, and a host of other properties from their waste flows. The largest boon to date has come from thermal energy, but producing biogas comes with its own set of challenges, including accurate gas flow measurement.

  7. Money Down The Drain: The High Cost Of Poor Air Flow Metering 3/14/2018

    The most common method of aeration for activated sludge systems is diffused air, but the energy costs associated with this process are often the largest non-labor-related expense a wastewater treatment facility has to bear.

  8. Southern California Water District Reduces Polymer Usage 30% With Polyblend® Polymer Activation System 2/28/2018

    Santa Margarita Water District (SMWD), located in southern California’s Orange County, between Los Angeles and San Diego, provides drinking water and wastewater services to over 165,000 residents and businesses. SMWD approached UGSI Solutions about a Polyblend® Polymer Activation System trial at their 3 A Water Reclamation Plant.

  9. The Cost Of High Solids In Your Wastewater Treatment Plant 2/12/2018

    Conventional activated sludge wastewater treatment plants (WWTP) operate with solids (mixed liquor suspended solids ­– MLSS) concentrations ranging from approximately 1500 to 5000 mg/L. In membrane bioreactors (MBRs), typical MLSS concentrations are even higher (10,000 to 12,000 mg/L). 

  10. The Often Overlooked Benefits And Versatility Of GRO And GR Systems For Existing Plants 2/7/2018

    Schreiber has designed and installed several dual GR plants in which one unit serves as the aeration/clarification unit and other unit serves as the digester/thickener/clarification unit. At the Mirasol, MO plant, the GR digester was sized to allow digestion/clarification in the initial phase, thus satisfying the clarifier duality required in many states, and will be converted to a digester/thickener in a future plant expansion.