CONTAMINANT REMOVAL RESOURCES

  • For many utilities, properly treating the iron and manganese in source water is critical to maintaining good customer relationships. When iron and manganese are present, they are often accompanied by arsenic contamination. Here are several examples of utilities that successfully installed treatment systems to address the trio of contaminants.

  • The aesthetic impact of iron and manganese on finished water — altering its color, odor, and/or taste — is the top driver of municipal utility customer complaints. While there are well-established treatment processes for these contaminants, innovative medias can provide many benefits that traditional technologies lack. This includes lower capital and operating costs, as well as a smaller footprint in some cases.

  • Who should pay, literally and figuratively, for chemical contamination of source water?

  • The application of zeta potential for the diagnosis and control of water treatment processes is not new. Research papers regularly cited on this subject date back decades and in fact most of the basic understanding of how zeta potential can be used to control coagulant dose remains similar to those early investigations. 

  • Biofilms are extremely complex ecosystems that provide excellent protection for the microorganisms within. This often makes them difficult to kill, even with chlorine. Basic understanding of biofilm ecosystems and their behavior to chlorine and other oxidizing biocides can offer valuable insight into achieving better microbial control. 

  • The word “unprecedented” is overused and often abused. Water stress, however — the situation in which the water resources in a region or country are insufficient for its needs — is today a major threat and we are in fact facing “unprecedented” challenges. Climate change is a big factor contributing to it, but it’s not the only factor. Without rapid changes in industrial water usage, it is predicted that within 10 years there will be a 40 percent global water deficit.

  • Granular activated carbon (GAC) and ion exchange (IX) resin have long histories in removing a variety of per- and polyfluoroalkyl substances (PFAS), known as ‘forever chemicals.’ But finding optimal treatment vessel and media efficiency depends on the specifics of the application. Here are some performance considerations of evolving options that can pay dividends for first-time and experienced PFAS removal operators alike.

  • As granular activated carbon (GAC) is increasingly employed to treat PFAS, new practitioners can improve their results by knowing what to expect — thanks to data and experience acquired from prior installations.

  • Chemical dilution systems play a critical role in many municipal and industrial water treatment systems. However, older technology tends to be less reliable and accurate while being a drain on resources, whereas a more advanced solution can significantly improve performance and generate labor savings.

  • With harmful algal blooms (HABs) being forecast to increase, in part due to the effects of climate change, more water systems can expect to face problematic cyanotoxin conditions more frequently and for more days per year. In its efforts to mitigate the negative effects of such increases, the U.S. EPA has enhanced its information resources for water utilities by issuing a new Cyanotoxins Preparedness and Response Toolkit (CPRT).

CONTAMINANT REMOVAL SOLUTIONS

  • NeoTech D338™

    The NeoTech D338™ is specially designed to disinfect water and is an essential component in advanced oxidation processes.

  • Wallace & Tiernan® Disinfection

    Evoqua Water Technologies is the premier provider of total disinfection and chemical dosing solutions. Our extensive portfolio, which includes the trusted Wallace & Tiernan product line, is designed to meet your most rigorous demands in virtually any water application and give you access to both the latest advances and widest range of proven technologies.

  • ALTRA Proven Lead Solutions

    ALTRA Proven Lead solutions has been installed 500,000 times around the world and is also certified and recognized by many international organizations. 

  • ALTRA PFAS Solution

    Reliable PFAS extraction in water at a fraction of the cost and risk of solutions that rely primarily on adsorption media (activated carbon or ion exchange resins).

  • Aftersales Solutions And Services

    At De Nora, we are strongly committed to providing aftersales and service support for our entire equipmen portfolio and similar competitive equipment.

CONTAMINANT REMOVAL VIDEOS

This presentation will look at the role that Ozone treatment plays addressing the evolving challenges of the water resources here in North America. During the presentation, we will review how ozone treatment is being used to address various drinking water challenges ranging from taste and odor to the contaminants of emerging concern.  We will also discuss the role that ozone plays in water reuse applications, providing multiple benefits in the reuse treatment train. Please join us as provide an overview of Ozone as a tool in meeting the complex challenges of today’s water and wastewater treatment requirements.