Wastewater Case Studies and Whitepapers

  1. In-line Aeration System Provides Required Level Of Dissolved Oxygen In Pressurized Effluent Line 8/20/2018

    The treated effluent from all wastewater treatment plants across the country must meet local dissolved oxygen (DO) limits before discharging into receiving waters.

  2. A Model Integration Of State-Of-The-Art Technologies That Satisfied Both Initial And Long-Term Considerations 2/17/2020

    The surrounding areas of Rock Creek Public Sewer District of Jefferson County, Missouri experienced substantial development in recent years overloading existing privately owned wastewater plant capacities.

  3. Vital Infrastructure Remains Operational While a Fire Hydrant Is Repaired 1/10/2022

    Hydratec Services, a trusted long-term partner of AVT, was called on to assist with the repair of a leaking fire hydrant in an East Texas location.

  4. Lift Station Reduces Clogging, Lowers Operating Expenses With Self-Cleaning Pumps 1/8/2014

    Aging pumps at Jackson Energy Authority’s Rolling Acres Lift Station (Jackson, Tenn.) resulted in frequent clogging and outages that required costly maintenance and repair.

  5. Advanced Grit Removal Resolves Plant's Combined Sewer Challenges 11/22/2016

    A Pennsylvania treatment plant upgraded its headworks to an innovative grit removal system that handles combined sewer storm surges, removes fine grit particles, and lessens maintenance on operations staff.

  6. Cost And Complexity Continue To Constrain Sustainability And Resiliency Efforts: Survey 6/15/2023

    According to Black & Veatch's 2023 Water Report, sustainability is considered a critical strategic focus by the majority of water utility stakeholders. The report surveys roughly 450 water industry stakeholders on topics ranging from climate change to regulations to federal funding programs.

  7. In-Situ Calibration: Methods And Pitfalls Of Thermal Mass Flow Meter Sensor Field Validation 5/1/2016

    Mid-to-large size facilities and campuses inevitably have hundreds of flow instruments to monitor, maintain, and repair. For a reliability engineer, ensuring that all instrumentation meets ISO 9000 or similar standards is a time-consuming responsibility. By Matthew J. Olin, President & CEO, Sierra Instruments, Inc.

  8. Retrofitting Aging Infrastructure: Seamlessly Integrating Jet Aeration Into Existing Tank Designs 12/22/2025

    Jet aeration retrofits modernize aging wastewater tanks with minimal downtime, integrating easily into existing basins while delivering long-term reliability, higher oxygen transfer efficiency, and significantly lower lifecycle costs.

  9. Vacuum Dosing Chemical Feeder For Chlorination And Dechlorination Helps Minimize O&M Costs For City Of Nashua, NH CSO Screening And Disinfection Facility 4/22/2016

    As part of its Long Term Control Plan to reduce combined sewer overflows (CSOs) to the Merrimack River, the City of Nashua, NH constructed a new Screening and Disinfection facility (SDF) to reduce untreated discharges of CSOs to the Merrimack River.

  10. How To Score High Marks For Low-Pressure RO Performance 1/22/2020

    For water system operators, contract engineers, OEMs, and reverse-osmosis (RO) membrane suppliers alike, the difference between expectations for RO membrane element performance and quantifiable performance in the actual operating environment can be fraught with surprises. This article addresses guidelines for establishing realistic RO warranty performance criteria and achieving those criteria in real-world applications.