Sludge & Biosolids Processing Resources

  1. How Data And Nature Can Combine To Help Small Wastewater Treatment Plants Address Huge Hauling Costs 9/13/2018

    It is no secret that the number of landfills has been steadily decreasing across the United States. As more and more cities adopt ‘zero waste to landfill’ sustainability goals, the number of landfills has shrunk from 6,326 in 1990 to 1,738 in 2015. Decreasing landfills has meant increased waste hauling costs for wastewater treatment plants (WWTPs) as sludge travels farther distances to reach landfills.

  2. Securing The World's Water, Food, And Energy Supply By 2050: Wastewater Treatment Is Central To The Solution 9/4/2018

    As wastewater treatment plants evolve into resource recovery facilities, the thermal hydrolysis process (THP) is destined to play a starring role, with some major THP projects having already set the stage.

  3. City Solves Wastewater Plant Dilemma With Dynablend™ Liquid-Polymer Technology 8/6/2018

    The City of Marengo, Illinois operates an activated sludge wastewater treatment plant that processes an average volume of 1.8MGD with a maximum capacity of 5.94MGD. In the fall of 2007, the operators of the plant began to observe reduced performance of their liquid-polymer feed system that was in place at the city’s facility. The Dynablend™ liquid-polymer unit was a good fit for the Marengo plant because of its reliability and performance over a wide range of polymers commonly used for sludge processing. Read the full case study to learn more.

  4. City Of Dixon, IL, Uses Polyblend® Dry Polymer Preparation System As Part Of A Creative, Cost-Neutral Biosolids Disposal Arrangement 7/1/2018

    The City of Dixon, Illinois, located 100 miles west of Chicago, went on-line with an upgraded 4.5 MGD wastewater treatment plant in February 2002.

  5. 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.”

  6. 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.

  7. 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.

  8. 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.

  9. 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.

  10. 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.