More Wastewater Industry Features

  1. Even Flow Secret To Clarification Success
    7/10/2018

    The key to high rate clarifiers such as inclined plate settlers is flow distribution says Tom Grubb, Regional Manager with Meurer Research. “Each inclined plate is like a miniature little sedimentation basin,” Grubb told Water Online in a recent Water Talk interview at AWWA’s ACE 2018. “To get good effluent quality, it’s critical that you have the same flow to each plate.”

  2. Challenging The Traditional Municipal Procurement Process — Getting Beyond The 'Or Equal' Bind
    4/30/2018

    Purchasing low-priced equipment is easy. Purchasing equipment with good lifetime value is much more difficult — especially for managers of public utilities, who are required by their procurement procedures to entertain "or equal" bids.

  3. A More Efficient Approach To EPA Stage 2 DBP Compliance
    4/20/2018

    Everyone wants pathogen-free drinking water, and adding chlorine is a great way to get it. Unfortunately, the dirtier a water treatment plant (WTP)’s raw water inflow — in terms of natural organic matter (NOM) or microbial organisms — the more disinfection byproducts (DBPs) the chlorination process will generate in the form of trihalomethanes (THMs) and haloacetic acids (HAAs). Those DBPs increase the risk of non-compliance with the U.S. EPA’s Disinfectants and Disinfection Byproducts Rules. Choosing the right instrumentation to measure NOM through spectral absorption coefficients (SACs) can have a big impact on treatment strategies — in terms of both costs and compliance performance.

  4. Sabesp Solves Water Crisis, Avoids Rationing For 9 Million Sao Paulo Customers
    4/25/2018

    Sabesp supplies water to more than half of the municipalities in the state of São Paulo, Brazil, including the 20 million residents of the metropolitan region of São Paulo.

  5. Evaluating Field-Testing Options For Nutrients In Streams
    3/26/2018

    Aside from having to deal with weather, mud, and the occasional slippery rock, there are key issues related to sample quality that can make testing water specimens from the field a bigger challenge than lab testing. That is why, when it comes to confidence and accuracy in onsite testing for nitrates, nitrites, phosphates, pH, and more, there’s nothing like using the right tools to do the job on the spot. Here is a quick checklist of trials, tribulations, and potential solutions for streamside sampling.

  6. Using Intrinsically Safe GFx320 To Measure Separator Sand Levels In Explosive Atmospheres
    4/11/2018

    Hydraulic fracturing (“fracking”) processes involve injecting sand to keep pores of a well open. When the well is brought back online after fracking, some of that sand burps back up to the surface and into a separator. The unwanted byproducts, paraffin and sand, accumulate in the separator tanks or vessels and must be removed to prevent irreparable damage to the separator’s fire tube. However, removing the sand is a costly process resulting in lost production and man-hours. To address the costly replacement of separators due to sand buildup and improve the efficiency of their separator preventative maintenance plan, Noble Energy created a sand measurement method using intrinsically safe optical gas imaging cameras, specifically, the FLIR GFx320.

  7. Beyond The Buzzword: How Utility Operators Can Use Big Data For Better Asset Management, Operations, And Customer Engagement
    5/7/2018

    Big Data is more than a marketing buzzword. It’s become an essential tool for helping utility operators prioritize capital investments, manage network assets, and provide a higher level of service to customers.

  8. Tackling Nonpoint Source Nutrient Pollution
    7/15/2018

    Recently, Ohio Governor John Kasich issued an executive order allowing the Ohio Department of Agriculture to set requirements for storing, handling and applying manure as well as nutrient management plans in an effort to reduce nutrient pollution and algal bloom growth in Lake Erie. The order is set to affect 7,000 farms across 2 million acres.

  9. Remote Monitoring For Water Quality And Public Health
    5/10/2018

    New technology helps utilities meet the challenges of maintaining a safe and adequate public water supply.

  10. In-House Versus Outsource: A Decision-Making Guide
    5/2/2018

    Biopharmaceutical executives must consider how outsourcing fits into their development and production strategy, as well as how to select the best CDMO partner for their business. Here’s a step-by-step guide to help make that decision.