CONTAMINANT REMOVAL RESOURCES

  • An Electrocoagulation ETP is an effluent treatment plant used for the treatment of water, wastewater, and process water. Electrochemical technology and in particular specialized electrocoagulation has become a sustainable water treatment technique due to its ability to remove multiple contaminants more efficiently and economically than conventional chemical treatment systems, such as colloidal silica, emulsified oils, total petroleum hydrocarbons, BOD, COD, refractory organics, trace heavy metals and suspended solids.

  • In most standard drinking water and wastewater treatment systems, there is a flocculation process that is used to reduce the concentrations of solids within the effluent stream. This particular process makes use of substances that aid in the clumping together of suspended particles among other contaminants in a clarifier system.

  • With the funding brought forth by the bipartisan infrastructure bill passed late last year, as well as aggressive policies and regulation to rid water supplies of per- and polyfluoroalkyl substances (PFAS) and lead, 2022 shapes up as the year we finally address our industry’s most troubling and challenging contamination issues in a meaningful way.

  • As so-called “forever chemicals” get more attention from regulators and the public at large, the pressure is on to eliminate these pervasive contaminants — forever.

  • While activated carbon has garnered a lot of attention for its efficacy in removing per- and polyfluoroalkyl (PFAS) compounds from drinking water, it had a history in water treatment long before PFAS entered the public consciousness. Water Online spoke with Eli Townsend, applications engineer at Calgon Carbon, to discuss some non-PFAS challenges — e.g., taste and odor — and how water treatment plants (WTPs) can use activated carbon to solve them.

  • When considering an arsenic treatment option for a water system application, it’s important to obtain and review the proposed design criteria carefully. A good system design will have evaluated critical water quality parameters such as pH alongside arsenic, phosphate, silica, iron and manganese, vanadium, sulfide, and other heavy metal concentrations.

  • Arsenic presents a wide array of negative health impacts, which is why it is such a big concern for many municipal water systems. The contaminant is linked to multiple types of cancer — including bladder, lungs, skin, kidney, and liver, among others — and is known to cause of variety of other problems such as skin issues and intestinal issues.

  • PFAS is a growing problem for municipal water utilities. The contaminant continues to show up in more water sources and regulations are a moving target that will likely involve more compounds and lower acceptable limits. As a result, crafting a long-term strategy to address PFAS can be problematic. However, those utilities using conventional gravity filters with anthracite as the filtering media have an opportunity to continue organic removal while adding PFAS removal with a simple conversion.

  • When developing water or wastewater treatment processes for entirely new applications or modifying existing processes to accommodate changing water characteristics or regulatory discharge requirements, understanding capital investment, operating cost, and long-term performance is critical. Here are several ways to view pilot-plant or lab-scale testing as viable approaches to better outcomes with lower risks.

  • There is no question that unpleasant taste and/or odor in drinking water can create negative water quality perception challenges for water utilities. Though taste and odor are not health concerns, consumers still are likely to notice and voice their concerns.

CONTAMINANT REMOVAL SOLUTIONS

  • Activated Carbon For PFAS Treatment: Why Base Material Matters

    Granular activated carbon (GAC) is an effective and proven technology for the removal of PFAS and many other harmful organic compounds. But, not all products are the same and using the right GAC can make the difference between success and failure.

  • GDT Mixing & Contacting Systems

    The GDT™ Process starts with the creation of ozone from an Ozone Generator. The ozone is then drawn into a Mazzei®Venturi Injector which provides dynamic mixing (a Back Pressure Control Valve adjusts injector outlet pressure optimizing ozone mass transfer in the system). Then mixing and contacting is enhanced in a Flash Reactor™. From there the two-phase flow travels to the Degas Separator (DS) & Relief Valve for additional mixing and entrained gas removal. And finally, the MTM Mixing Nozzles force dissolved ozone flow into the untreated water in the pipeline or basin for thorough mixing.

  • TETRA® ABF Bioactive Filter

    The DE NORA TETRA® ABF bioactive filter combines ozone generation with biologically active filtration for use in municipal water applications. The process targets micropollutant reduction and reduces disinfection byproducts in drinking water and potable reuse applications.

  • Injection Skids

    Mazzei injection systems are designed using Mazzei’s patented technologies to obtain the most efficient mixing and contacting of air, oxygen, ozone or chemicals into a water stream.

  • Municipal Real-Time Water Quality Monitoring

    We arm municipalities with actionable data necessary to make informed decisions about water quality in their communities

CONTAMINANT REMOVAL VIDEOS

Zeoturb Bio-organic Liquid Flocculant Explainer Video by Genesis Water Technologies. This video will explain what is Zeoturb flocculant, how does it work for water clarification in drinking water, wastewater, process water and storm water treatment applications. How it is introduced into the water. Learn more about the Zeoturb liquid bio-organic floculant today.