Wastewater Features

  1. Play It Again, Sam: Potable Water Reuse Striking New Chords
    6/21/2018

    The phrase “Necessity is the mother of invention” has been definitively traced back to early 16th century England, and even attributed to Plato in the Latin form, “Mater artium necessitas.” In today’s world of water, necessity is also becoming a major factor in rising interest regarding potable water reuse. This is especially true in areas where changes in climate or usage demands have stressed traditional sources of supply, as evidenced by increasing numbers of applications worldwide. For those who work in a water-stressed environment, this article can provide added perspective on specific points of opportunity — and points of caution.

  2. All-Natural Biofilm Media Derived From Plant Stock Enhances Clarifier Settling
    6/4/2018

    When clarifiers are not settling like they should, problems arise, including reduced capacities, high sludge volume indexes (SVI) and sludge blanket levels, and infiltration/inflow (I/I) washout issues.

  3. Forests And Wetlands Are Water Infrastructure. New Green Bond Helps Finance Their Protection
    5/22/2018

    East Africa’s Kariba Dam is almost empty due to diminishing rains. In Brazil, Sao Paulo’s reservoirs were reduced to dried mud three years ago, and experts say the city is heading toward another dry spell. Catastrophic floods recently wreaked havoc in southern England, Texas, and Bangkok.

  4. Soaking In Another Victory
    5/17/2018

    It’s a four-peat.

    For the fourth consecutive year, the University of Maryland, College Park has won high honors in EPA’s Campus RainWorks Challenge, a national collegiate competition to design the best ideas for capturing stormwater on campus before it can harm waterways.

  5. Point Level vs. Continuous Level Measuring Technologies
    5/14/2018

    While point level measuring approaches are regarded as simple and user-friendly, they lack the capabilities of more sophisticated continuous measuring instruments.

  6. How Sludge-To-Energy Technology Is Boosting Water Resilience And Slashing Emissions For Cities
    5/14/2018

    Growing cities are generating higher volumes of wastewater and putting a strain on clean water supplies, calling for solutions that extract value from “waste” and ensure the sustainability of resources — with the added bonus, or imperative, of protecting the environment.

  7. Innovative, Collaborative, Inevitable: Furthering The Evolution Of Smart Water In North America
    5/9/2018

    A Q&A with Gary Wong, chairman of the SWAN North American Alliance

  8. Mapping Tool Scores Sites For Watershed Protection
    5/4/2018

    Ralph Spagnolo and Ellen Bryson know their way around the state capitals in EPA’s Mid-Atlantic Region.  The regional Water Protection Division employees have been on the road helping states launch an innovative online mapping tool that prioritizes sites for watershed preservation or restoration.

  9. How To Improve Test Accuracy With The Latest Sampling Technology
    4/25/2018

    Sampling and laboratory testing are major responsibilities for water professionals. Test results are used for process control, and ultimately to determine that water is safe for drinking, reuse, or discharge to the environment. Regulatory agencies rely on reported results for proof of permit compliance. So, obtaining representative, properly collected and preserved samples is the first critical step to ensure accurate test results.

  10. Technology Tips – Grinders For Sewage Sludge Systems
    4/20/2018

    Ever since its invention in 1973 the Muffin Monster two-shafted grinder has been a fixture in wastewater treatment plants sewage sludge systems.  The industry has seen significant changes since then but the need for grinders has persisted and evolved with the requirements of plant operators and engineers.