Wastewater Case Studies and Whitepapers

1. What's The Difference Between 1D And 2D Hydraulic Modeling? 4/18/2024

   In this article, take a look at what 1D and 2D hydraulic modeling is, the pros and cons of each, and move through a sample workflow of how to decide between them.

2. Parkson Turnkey Services Allow Customer To Get What They Want 12/2/2019

   A wastewater plant in Florida originally had one Parkson Aqua Guard® Self-Cleaning Moving Media Screen in operation for approximately 19 years. When the city expanded, a new headworks plant was built in 2009. At this time, two (2) new screens were purchased from a competitor based on cost through a bid process to contractors.

3. Supplemental Aeration System Reduces High BOD Levels And Solves Odor Issues 9/1/2018

   A leading fruit juice company had expanded over the past ten years and increased wastewater flow from 7,000 to 11,000 gallons per day (gpd), without upgrading its wastewater treatment plant. Read the full case study to learn how after a Mazzei AirJection system was installed, dissolved oxygen levels increased in the aeration basins, which immediately eliminated the odors.

4. Municipality Looks To Expand Plant Capacity While Reusing Existing Systems 9/23/2020

   Sharjah Municipality of the Untied Arab Emirates (U.A.E.) was requiring to treat more and more flow despite having very little space for new treatment systems. They were looking at wanting to expand their plants No. 4 & No. 5 plants to meet new total nitrogen limits and try to do so by having to reuse the existing systems. This type of upgrade would save on cost as well as space at the plant.

5. 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.

6. Denitrification Filters Meet Strict, Varying Nitrogen Limits 10/1/2018

   The cities of Littleton and Englewood, CO, just south of Denver, share a wastewater plant — the Littleton/Englewood advanced wastewater treatment (AWT) plant located in Englewood. The 7886 m3/hr (50-mgd) Littleton/Englewood AWT plant serves more than 300,000 residents in the Denver metropolitan area. The facility also receives sewage from 21 districts within a 75 square mile service area. Plant effluent is discharged to the Denver metro area’s major watershed, the South Platte River.

7. WWTP Air Handling Control Philosophies: Do's And Don'ts 3/9/2018

   Without an appropriate control strategy, even the best wastewater treatment plant (WWTP) equipment can struggle to deliver maximum efficiency. Because energy costs represent up to 60 percent of WWTP plant operating expense, air distribution designs and changing loading (biochemical/biological oxygen demand [BOD]/chemical oxygen demand [COD], ammonia) demands require control strategies designed to adapt to all eventualities efficiently. The following checklists, plus important Do’s and Don’ts, can help in identifying an underperforming control strategy and developing a better one.

8. World's First Electromagnetic Flow Meter With Bidirectional Connectivity To Power Intelligent Water Loss Management 12/22/2021

   ABB’s AquaMaster4 Mobile Comms flowmeter is the latest wireless solution for continuous flow measurement, the logging of accurate data and communication of information that is critical for today’s water management.

9. 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.

10. Treatment Plant Maintains Service During Infrastructure Upgrade Using Xylem Rental Bypass 11/12/2025

    To move forward with long-overdue infrastructure upgrades, Nodra AB needed a wastewater bypass solution capable of lifting up to 3,000 liters per second into its Slottshagens treatment plant. Xylem’s Rental Solutions team set up a turnkey wastewater bypass station in a little over three weeks.