Sludge & Biosolids Processing Resources

51. Thermoformed Vs. Extruded Tube Settlers 5/9/2022

    Tube settlers use multiple tubular channels, which are adjacent to each other and sloped at nominal 60˚ angles, to form an increased effective settling area. This configuration allows for a shorter particle setting depth, and as the tube settler channels collect solids, they form a compact mass that promotes the solids to slide down the channel. Tube settlers are an inexpensive method of upgrading existing clarifiers and sedimentation basins by allowing increased flow rate and/or improved performance. They can also reduce the footprint of new clarifier construction.

52. Winter Maintenance For Trickling Filters 5/6/2022

    As winter approaches and cold weather sets in, both the air and wastewater temperatures of your trickling filter can drop to the single digit area, so we want to bundle it up to prevent it from catching a “cold.” It is critical to preserve heat within the filter so the bugs are happy, healthy, and keep working hard to clean up the wastewater that humans produce. Here are a few measures you can take to keep the bugs happy and your trickling filter efficient:

53. Protecting The Environment And Reducing Cost Through Improved Sludge Quality 4/13/2022

    Sassuolo WWTP operators noticed high levels of zinc in generated sludge. Here is how Kando helped prevent metal contamination, allowing the sludge to be applied for agriculture.

54. Maximizing Value In WWTP Equipment, Parts, And Services 12/21/2021

    In demanding wastewater treatment environments, even the best equipment needs some TLC every now and then. Finding the best way to approach that can have a tremendous impact on the total lifecycle cost of that equipment. Here is how planning ahead to evaluate the range of options and the best choices for the task at hand can make a tremendous difference in both the cost and continuity of equipment performance.

55. Join Hydro International For The Vortex Flow Controls In Practice Webinar 11/11/2021

    In this follow-up webinar Technical Product Manager, Phil Taylor will demonstrate in more detail how to select and design a Hydro-Brake using our free online design tool. The Hydro-Brake is one device that should be in every stormwater engineer’s toolbox. Hydro invented the vortex valve back in the 1960’s and has led the world in its development and design ever since.

56. Ushering In A New Era Of Sustainable Biological Treatment 9/14/2021

    Conventional activated sludge treatment for wastewater is becoming increasingly problematic over time. Not only does the process require significant amounts of energy, which drives up operating expenses, but utilities are under mounting pressure from the U.S. EPA to go green.

57. The Contractor's Song: Organics To Energy — It's Only Natural 9/2/2021

    Organics to energy is the pathway to recovery and one of the many steps we must take to reduce our carbon footprint while also providing additional resiliency in energy supply.

58. Improve Sludge Quality With Sludge Screening 6/7/2021

    Plants with Anaerobic Digestion see phenomenal performance improvements in this process when they removed rags, plastics, and inorganic solids from their digester with the Hydro-Sludge Screen from Hydro International. Learn about a few of the many wastewater treatment plants that have benefitted from cleaner sludge. Read this brochure for brief case studies of how plants have improved their overall operations as well as protected valuable process performance and capacity with the Hydro-Sludge Screen.

59. How To Improve Anaerobic Digestion And Turn Sludge Into Renewable Energy 6/4/2021

    Anaerobic digestion is a critical element in a sludge management plan for wastewater treatment. Its role is to kill any pathogens in the raw sludge, produce a more desirable final product, and enhance the amount of biogas/energy generated by the process. The main issue is how best to improve the sludge quality without incurring excess costs.

60. Harnessing 20 Years Of Evolution In Wastewater Bioprocess Aeration 4/6/2021

    Cost-efficient aeration still remains an underlying challenge. This Q&A article provides a look at how the industry arrived at today’s opportunities and where it’s headed for the future.