More Wastewater Industry Features

  1. Getting Chlorine Disinfection Right
    11/1/2017

    Of all the process considerations facing wastewater treatment operators, disinfection is one of the most important. In this exclusive Water Talk interview, Gary Lohse, Technical Sales Manager, Disinfection with De Nora Water Technologies, discusses how disinfection has become increasingly complex over time. Lohse reviews a host of selection criteria including target microorganisms, control strategies, disinfection by-products, capex and safety.

  2. New Smart Water Network Provides Perfect Harmony At Nashville Metro Water Services
    4/19/2017

    Providing clean drinking water to its citizens since the early 1800s, Nashville’s city government has a deep-rooted history in the water industry. Today, Nashville Metro Water Services (MWS) serves more than 191,000 customers in Nashville and surrounding counties.

  3. State-Of-Art Filters Triple Filter Run Times And Maximize Performance
    3/16/2017

    A plant manager in Colorado became frustrated by the consistently short filtration run-times and the large amount of water wasted by the four dual-cell bottom filters used to clean the region’s drinking water. Xylem’s Leopold Type XA underdrain with I.M.S 200 media retainer, new filter media (12” silica sand/18” anthracite), and wash troughs, emerged as the top choice.

  4. Upgrading DWTP Operations In Kansas With The QbD1200 TOC Analyzer
    7/26/2017

    For drinking water treatment plants (DWTPs), the EPA’s Disinfection Byproduct Rule (DBP) is a way of life. Unfortunately, for many facilities the equipment and operations haven’t evolved with the regulation mandates, leaving facilities in a tough spot. For a DWTP in Douglas County, KS, its challenges with accurate TOC measurement and testing, along with expensive calibrations and extended downtime with its prior TOC analyzer led it to trialing the Hach QbD1200 TOC Analyzer. Read the full case study to learn more.

  5. Boiler Feed Water Pump Local Instrumentation — Necessity Or Nuisance?
    2/28/2017

    Anyone remember the old cars of the 1950s and 1960s? They all pretty much came equipped with an ammeter, an oil pressure gauge, a water temperature gauge, as well as a speedometer and a fuel level gauge. Then came the ’70s, ’80s, even the ’90s and turn of the century cars, where “idiot lights” replaced the ammeter, oil pressure and water temperature gauges. Now the latest up-to-date vehicles have again returned to certain analog gauges, and digital read-outs, as well as computerized “information centers” that tell the operator more than they possibly ever wanted to know about their vehicle.

  6. The Ultimate DAF System Design Buyer’s Guide: Part 1
    7/10/2017

    At a certain point in the project development process you will have qualified a few dissolved air flotation (DAF) system manufacturers from a field of many. Now you have to decide which one’s DAF System design will best suit your needs. How do you choose?

  7. The Control They Want
    12/7/2017

    Danville, Kentucky, is known as the City of Firsts.  The City built the first courthouse in Kentucky, the first Kentucky constitution was written and signed there, they had the first U.S. post office west of the Allegheny Mountains, Ephraim McDowell completed the first known successful laparotomy there in 1809, and Danville was the first capital of Kentucky!  This profile describes the implementation of a new SCADA control system completed by VTScada Certified Advanced Integrator, Rawdon Myers, Inc.

  8. Three Water Districts Transformed
    12/25/2017

    Read how three water districts improved their facility operations using Inductive Automation software.

  9. Ozone To Enhance Removal Of Iron And Manganese And Reduction Of THM
    4/27/2017

    The U.S. EPA's promulgation of the Stage 2 Disinfection By-Products Rule required  the Public Works Department of Danvers, MA, to establish a Two-Phase upgrade of the plant’s treatment process in order to comply.

  10. A Visual Guide To Troubleshooting Your Valves
    1/9/2017

    Water management professionals know all too well that problems arise — usually sometime after 2 a.m., or just as you’re walking out the door for a holiday weekend. No matter how well-prepared you are, or how sophisticated your system, sometimes you’re going to run into challenges. It’s simply the nature of the industry. When you experience an issue with your valves (especially when they’re failing to open or close as expected) your first instinct is to call the factory for support. While some cases may require factory assistance, this isn’t always the most efficient solution.