CASE STUDIES AND WHITE PAPERS

Full-Scale Installation Report For Z-92® Uranium Removal – City Of Grand Island, NE
Full-Scale Installation Report For Z-92® Uranium Removal – City Of Grand Island, NE

A single WRT Z-92® Uranium Removal treatment system was selected by the City of Grand Island, NE to remove high concentrations of uranium in three city wells.  When the Z-92® Uranium Removal treatment system was installed in 2012, it was the largest uranium treatment facility in the nation. The high uranium in the raw water source is consistently being reduced to levels below the Maximum Contaminant Level (MCL). 

Mountain Regional Water District Deploys Next Generation On-Site Hypochlorite And Tank Mixing Technology To Meet Expanding Water Management Needs
Mountain Regional Water District Deploys Next Generation On-Site Hypochlorite And Tank Mixing Technology To Meet Expanding Water Management Needs

The Mountain Regional Water District is a Special Service District of the county that was established by the Summit County Commission in 2000 to regionalize water service by consolidating several public and private water companies.

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CONTAMINANT REMOVAL PRODUCTS

Next Gen Capital Controls® Chlorinators Next Gen Capital Controls® Chlorinators

The unique compact design incorporates the best existing Capital Controls® technology with exciting new features. With just three models ranging from 10-10,000 lbs/day capacity, each chlorinator is available with automatic or manual feed and a 10” flowmeter for an easier read. Sonic operation on the 4100 model eliminates the need for a differential pressure regulator. On all automatic models, an additional controller isn’t needed, reducing components – and costs. 

Carbon Systems Carbon Systems

Loprest designs and manufactures granular activated carbon (GAC) treatment systems for taste and odor applications, chlorine removal, PFC’s, 1 2 3 TCP, PCE/TCE, 1 4 dioxane, and many other contaminants. Loprest has a long, successful history in the selection and application of the proper carbon media for the application.

Ion Exchange Systems Ion Exchange Systems

Loprest has been providing ion exchange treatment systems for the removal of arsenic, nitrate, perchlorate, hardness, fluoride and other contaminants for many decades. Loprest has the engineering process and application expertise to select the proper exchange resin and design a treatment system that will optimize the system performance.

Pressure Filters Pressure Filters

Loprest pressure filters can be provided in horizontal or vertical vessel configurations for flow rates from 50 to 5,000 GPM. The Loprest multi-cell pressure filter design produces its own backwash water, so there is no need for a separate treated water source and pumping system. The Loprest filter design has been optimized over many years for reliable, efficient, economical operation. All Loprest treatment systems are operated by a fully automated control package.

Ultra-High Recovery Reverse Osmosis Ultra-High Recovery Reverse Osmosis

AdEdge-ROTEC’s Flow Reversal technology is designed to be implemented in new and existing reverse osmosis desalination facilities for water purification, brackish water, process water, and other industrial applications. This high recovery technology addresses concerns often associated with desalination and enables significant system performance improvements, leading to higher profitability, reduced operating costs, and a lower environmental impact.

NoMonia Biotreatment Solutions NoMonia Biotreatment Solutions

NoMonia is a dual-stage engineered biotreatment process that relies on naturally occurring bacteria. Typically, the amount of ammonia that can be oxidized during the natural nitrification process is limited by oxygen availability and its saturation level in the water.

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DRINKING WATER CONTAMINANT REMOVAL PODCASTS

Alternative Treatment For Groundwater Wells Alternative Treatment For Groundwater Wells

AdEdge Water Technologies specializes in inorganic contaminant removal, relying on a variety of treatment technologies such as adsorption, coagulation, oxidation, filtration, RO and ion exchange. Rich Cavagnaro, CEO of AdEdge Water Technologies and Ronit Erlitzki, Director of Business and Product Development for the Company, recently joined Water Talk to discuss a biological treatment technology for groundwater wells.

Polymer Activation And Onsite Hypochlorite Generation Polymer Activation And Onsite Hypochlorite Generation

Polymer activation through proper hydration of the polymer particle is critical in water clarification or sludge dewatering applications. According to Jeff Rhodes, Vice President of Commercial Development for UGSI Solutions, “the key is to have a high energy zone at the moment of initial welding, when the polymer and the water come together.”

Chemical-Free AOP Technology Chemical-Free AOP Technology

Most advanced oxidation processes require chemicals—but not Photo-Cat.

On Site Hydrogen Peroxide Generation for Advanced Oxidation Process On Site Hydrogen Peroxide Generation for Advanced Oxidation Process

Vitamins, steroids and hormones are all emerging as contaminants being detected in drinking water supplies. As Jon McClean, Chief Technology Officer with Neptune Benson explains in this Water Online Radio interview, advanced oxidation processes (AOPs) add hydrogen peroxide in front of UV treatment to eradicate contamination.

The Evolution Of Low-Energy UV Disinfection The Evolution Of Low-Energy UV Disinfection

Conventional ultraviolet (UV) disinfection is a great, but often expensive, solution for the destruction of pathogens in drinking water. All those lamps and power emissions add up. But what if you could perform the same job with 1/10 of the power used by conventional systems?

Biological Filtration For Drinking Water Treatment Takes Off Biological Filtration For Drinking Water Treatment Takes Off

Biottta is a relatively new biological filtration process for drinking water treatment, addressing nitrates, perchlorates, chromium-6 and a number of VOCs as well. In this Water Online Radio interview, AdEdge Water Technologies’ Chad Miller and Rich Cavagnaro discuss its emergence in the water treatment market and some of the specific contaminants it addresses.

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CONTAMINANT REMOVAL VIDEOS

Flowback Water Recycling Flowback Water Recycling

Watch as MIOX's patented mixed oxidant technology dramatically changes, and treats hydraulic fracturing flowback water on-the-fly. MIOX's water treatment solution has a small footprint, and utilizes only salt and electricity which helps provide low treatment costs.

ClorTec On-Site Sodium Hypochlorite Generators ClorTec On-Site Sodium Hypochlorite Generators

On-site sodium hypochlorite generation is a proven, cost-effective, reliable and safe alternative disinfection treatment method. On-site generated sodium hypochlorite is stable and easy to feed, and less chlorine is lost to the atmosphere because of better mixing and retention in the treated water.

TrojanUVTelos™ Drinking Water UV Disinfection System (Video) TrojanUVTelos™ Drinking Water UV Disinfection System (Video)

Adam Festger discusses how, with TrojanUVTelos, we have simplified UV disinfection to help small communities overcome drinking water challenges.

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ABOUT

The removal of contaminants from public drinking water systems in the US is mandated by the Environmental Protection Agency’s (EPA) National Primary Drinking Water Regulations. These are legally enforceable standards that protect public health by limiting the levels of contaminants in drinking water. Similar regulations are managed by agencies worldwide to protect their citizens from drinking water contamination.

There are a plethora of drinking water contaminant removal technologies that public and private water systems use to comply with the EPA’s drinking water regulations. These include reverse osmosis, membrane, nanofiltration, ultrafiltration, chlorine disinfection, UV disinfection and Ozone-based disinfection practices.

The EPA’s list of drinking water contaminants is organized into six types of contaminants and lists each contaminant along with its Maximum Contaminant Level (MCL), some of the potential health effects from long-term exposure above the MCL and the probable source of the drinking water contaminant.

The six types of contaminants are microorganisms, disinfectants, disinfection byproducts, inorganic chemicals, organic chemicals and radionuclides.

Examples of microbiological, organic contaminants are Cryptosporidium and Giardia lamblia. Both of these microorganic pathogens are found in human or animal fecal waste and cause gastrointestinal illness, such as diarrhea and vomiting.

A common disinfectant used in municipal drinking water treatment to disinfect microorganisms is chlorine. The EPA’s primary drinking water regulations require drinking water treatment plants to maintain a maximum disinfectant residual level (MDRL) for chlorine of 4.0 milligrams per liter (mg/L). Some of the detrimental health effects of chlorine above the MCL are eye irritation and stomach discomfort.

Similarly, byproducts from the chlorine-based disinfection methods used by public water systems to remove contaminants can be contaminants in their own right if not removed from the drinking water prior to it being released into the distribution system. Examples of disinfection byproducts include bromate, chlorite and total trihalomethanes (TTHMs). Not removed from drinking water, these disinfection byproducts can increase risk of cancer and cause central nervous system issues.

Chemical contamination of drinking water can be caused by inorganic chemicals such as arsenic, barium lead, mercury and cadmium or organic chemicals such as benzene, dichloroethane and other carbon-derived compounds. These chemicals get into source water through a variety of natural and industrial processes. Arsenic for example is present in source water through the erosion of natural deposits.  Many of the chemical contaminants are derived from industrial wastewater such as discharges from petroleum refineries, steel or pulp mills or the corrosion of asbestos cement water mains or galvanized pipes.

Radium and uranium are examples of radionuclides. Radium 226 and Radium 228 must be removed to a level of 5 picocuries/liter (PCI/L) and Uranium to a level of 30 micrograms/liter (30 ug/L).