CONTAMINANT REMOVAL RESOURCES

• The Menace Of Biofilm And How We Can Tackle It

  Why are living biofilm super-pathogens spreading in water systems, and what is the best way to defeat them?

• Advanced Biological Filtration: A Multi-Barrier Approach To Complex Water/Wastewater Contaminant Removal

  Since Flint, Michigan, and other communities brought the issue of water safety to the headlines, even non-water professionals are familiar with common contaminants like lead and arsenic. But there remains some ambiguity around “emerging contaminants” that are now appearing in water supplies, particularly as regulations to mitigate them are under development with no clear guidelines yet available.

• Understanding Options Key To Selecting Most Effective, Lowest Cost PFAS Solution

  Municipal water utilities throughout the U.S. are increasingly grappling with the need to address PFAS once it is detected in source water. Because standards are a moving target while treatment options are limited and can represent a massive expense, addressing PFAS can be especially challenging for small water systems. The key to finding an optimal solution requires a thorough investigation of solutions.

• A Natural Approach To Algae Treatment And Prevention

  Operators of lakes, rivers, reservoirs, and other waterbodies commonly introduce harmful chemicals and other compounds — such as antibacterials and bleach — in an attempt to rid the water of problems such as algae and toxins. However, with beneficial bacteria it is possible to achieve a balance in water or discharge by reducing phosphorus and other key parameters naturally, thereby eliminating or drastically reducing the food source for algae.

• Pros & Cons Of Sea Water Desalination Using Reverse Osmosis For Drinking Water

  Sea water desalination is unequivocally the future of drinking water production for coastal communities and island nations in current times of water scarcity. It is already used quite heavily in a few countries. Saudi Arabia, the United Arab Emirates, and the United States are the top three desalination producers of drinking water by capacity in the world followed by Australia, China, and Kuwait.

• Pros And Cons Of The Advanced Oxidation Process

  In many water and wastewater treatment applications, there are a number of pollutants that are difficult to reduce by physical, chemical, or biological means alone. In more recent years, there has been a growing concern regarding pharmaceutical drugs in drinking water and aquatic environments. Pesticides get caught in runoff from farms into freshwater supplies. Personal care products are typically washed down the drain into whatever system they are linked to. Landfill leachate is a toxic cocktail of compounds that can leak into groundwater sources. Such contaminants fall into the category of micropollutants, because they are so small. Their size alone is part of the reason, they are so difficult to remove from water and wastewater by certain means. More efficient removal requires a more powerful oxidation process, this process is called an advanced oxidation process (AOP).

• 4 Benefits Of Sodium Zeolite For Drinking Water Treatment

  Drinking water treatment systems have little room for error after treatment at the risk of public health. Use of treatment systems that effectively target and treat toxic and undesirable contaminants is essential to drinking water production. There are typically four stages in a standard drinking water treatment system process, coagulation/flocculation, sedimentation/clarification, filtration and disinfection. Sodium zeolite is typically utilized in the filtration systems within the filtration stage for optimal treatment performance.

• Drinking Water Treatment Plant (DWTP) Filtration System For Arsenic Removal

  The Toquepala mine is a large copper mine in the Tacna Province in Peru, on the border with Chile and Bolivia. The mine is situated far from nearby towns and cities and is operated by between 800-900 employees living on-site.

• Successful Piloting Of UV Advanced Oxidation On Long Island For 1,4-dioxane Treatment (Case Study)

  The New York State Department of Health has recognized the ultraviolet advanced oxidation process (UV AOP) as a treatment solution for 1,4-dioxane. For water providers located in Nassau County on Long Island, it was necessary to pilot UV AOP technology at the various wells requiring treatment in order to confirm treatment efficacy and obtain state approval.

• An Economic Solution For Reducing Total Organic Carbon Levels In Surface Water Sources

  Removing total organic carbon (TOC) from drinking water is often a tricky proposition for municipal utilities that rely on surface water sources. Disinfection byproduct rules call for a percentage of removal instead of allowing a maximum contaminant level. Granular activated carbon is a cost-effective way to provide stability in TOC reduction for surface water sources and improve the quality of water in the distribution system.