WASTEWATER CONTAMINANT REMOVAL WHITE PAPERS & CASE STUDIES

Protecting Water Resources: A Multifaceted Approach
Protecting Water Resources: A Multifaceted Approach

As the cost of and demand for potable water increases, engineers, planners, and utilities need reliable, innovative methods for protecting this valuable resource. Cost-effective and environmentally sustainable wastewater collection and treatment systems are vital components in the water cycle and therefore require careful analysis. While there is no single solution for every site or community, traditional ‘big-pipe’ systems are rarely appropriate in sensitive environments; fortunately, today there are more options than ever to consider.

  • Ecomuseum Zoo: High Efficiency Filtration Reduces Turbidity & Maintenance Costs
    Ecomuseum Zoo: High Efficiency Filtration Reduces Turbidity & Maintenance Costs

    ​The Ecomuseum Zoo is home to the most impressive ambassadors of Quebec’s wildlife. All residents of the Ecomuseum Zoo are there for a special reason: orphaned, injured or born under professional human care, each of them could not return to the wild. Hence, they have found a forever home at the zoo.

  • Automated Residual Boosting System Improves Chloramine Levels, Eliminates Nitrification In 400,000-gal Tank
    Automated Residual Boosting System Improves Chloramine Levels, Eliminates Nitrification In 400,000-gal Tank

    Like many municipalities in urban and suburban areas, San Bruno’s source water comes both from its own groundwater supply and through a purchase agreement with a major water utility — in this case, San Francisco Public Utilities Commission (SFPUC). And, like many municipalities in California, SFPUC, along with San Bruno, switched from free chlorine to chloramines in 2003 largely to reduce disinfection by-products.

  • Granular Activated Carbon: A Long-Term Solution For Meeting DPB Compliance
    Granular Activated Carbon: A Long-Term Solution For Meeting DPB Compliance

    When the Cobb County-Marietta Water Authority (CCMWA) anticipated the need to upgrade the Hugh A. Wyckoff water treatment plant, they turned to granular activated carbon (GAC) technology after vetting several alternatives. The plant, a wholesaler in a two-plant system, processes up to 72 million gallons per day and serves about 350,000 people. Comprising of Wyckoff and the James E. Quarles treatment plant, CCMWA is the second largest water provider in Georgia.

  • Mapping And Identifying The Source Of Water Quality Issues
    Mapping And Identifying The Source Of Water Quality Issues

    A Southern U.S. municipality experiencing taste and odor issues in a certain neighborhood was also having difficulty maintaining chlorine residual levels in the area. Biological growth was suspected, however, water leaving the treatment plant met and exceeded all water quality requirements. After several investigations, the source of contamination in the distribution system could still not be identified.

  • Has The Ideal Biocarrier Finally Been Developed?
    Has The Ideal Biocarrier Finally Been Developed?

    In order to improve the efficiency of biofilm technologies, a high-performance biocarrier has been developed, based on requests for ideal carrier characteristics.

  • Filter Technology Saves Colorado Plant 50,000 GPD
    Filter Technology Saves Colorado Plant 50,000 GPD

    Combined with the installation of the new filter media and wash troughs, this particular type of underdrain and media retainer brought the water treatment plant’s operations up to speed.

  • Improving The Quality Of Secondary Wastewater For Indirect Potable Reuse—From Pilot To Full Scale Plant
    Improving The Quality Of Secondary Wastewater For Indirect Potable Reuse—From Pilot To Full Scale Plant

    In spite of the recent abundance of water, many of California’s aquifers continue to balance on the edge of water scarcity. Decades of overpumping have reduced the amount of ground water available to supplement surface water resources diminished by drought. The Pure Water Monterey Ground Water Replenishment Project (Monterey Pure), addressed the need to replenish a local aquifer, by piloting Advanced Water Treatment (AWT) processes, to determine the best method to convert secondary wastewater into a pure water resource.

  • Pure Oxygen Injection Into A Pipeline
    Pure Oxygen Injection Into A Pipeline

    The Hagerstown Wastewater Treatment Plant in Maryland incorporated several plant modifications, one of which was the conversion of their disinfection process from the use of ozone to UV.

  • Retrofit Significantly Reduces Backwash Cycle Interval, Duration And Water Use For Georgia Utility
    Retrofit Significantly Reduces Backwash Cycle Interval, Duration And Water Use For Georgia Utility

    The North Columbus Resource Facility recently completed a $12-million replacement of its settled water filtration, removing the existing Wheeler filters, their three-part media and 10-inch poured concrete underdrains, which were no longer efficient.

  • Mitigating Environmental Impact Of Gold Mine’s Wastewater Through Ozone Oxidation And Aquifer Re-injection
    Mitigating Environmental Impact Of Gold Mine’s Wastewater Through Ozone Oxidation And Aquifer Re-injection

    Installing and operating an ozone oxidation system for wastewater remediation at a gold mine located in a remote region of Alaska is full of challenges.

Center Feed Drum Screen Is Mission Critical To World Class MBR Plant
Center Feed Drum Screen Is Mission Critical To World Class MBR Plant

North Las Vegas has installed some of the largest rotary fine screens operating in the United States. The center feed drum screens are critical to protecting the membrane bioreactor, enabling the plant to maintain extremely low turbidity coming off their plant that is better than most potable water. Read how they are putting the ROTAMAT RPPS to work.

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WASTEWATER CONTAMINANT REMOVAL PRODUCTS

FiltraFast Extreme-Rate Compressible Media Filter FiltraFast Extreme-Rate Compressible Media Filter

FiltraFast™ is a high-rate downflow gravity or pressure filter that uses a unique compressible media. The filter only uses hydraulic loading to create the required media porosity without any mechanical compressing devices. A proprietary backwash sequence enables maximum recovery, extends media life, and limits energy consumption. This process 1) significantly reduces the footprint compared to sand filters, and 2) reduces maintenance and replacement costs required by disc filters, and other compressible media filters.

UV Package Plant UV Package Plant

Calgon Carbon UV Technologies is pleased to introduce the C3500D/PS Packaged System for UV Wastewater Disinfection. This product uniquely addresses the needs of smaller communities with effluent flows of less than 2.6 million gallons a day.

Ozone System For Advanced Water Treatment And Disinfection Ozone System For Advanced Water Treatment And Disinfection

With 1,200 installations worldwide, De Nora Ozone offers a wide range of ozone systems, from small compact units to turnkey plants. Ozone is used for the treatment of municipal drinking water and wastewater; micropollutants; industrial wastewater and process water; advanced oxidation; pools and spas; and biological sludge reduction. Using the strongest natural oxidants, on-site ozone generation does not create a residual biological sub-product, offers quick reaction time, and requires no chemical compounds. De Nora Ozone systems maximize ozone concentration while minimizing energy requirements, working closely with the customer to a provide a tailor-made solution for individual needs. De Nora Ozone has the expertise to ensure you get the most effective technical solution through pilot plants, testing and scale units.

Pipeline Flash Reactors for Mixing & Contacting Pipeline Flash Reactors for Mixing & Contacting

Pipeline Flash Reactors™ (PFRs or spool pieces) utilize high velocity mixing to transfer ozone or oxygen-enriched sidestreams into bulk water flow, all within a compact footprint. With a PFR, ozone or oxygen mass transfer occurs in the pipeline within seconds, eliminating the need for additional tanks or basins. Whether it is providing ozone for water purification or increased dissolved oxygen for wastewater, Mazzei’s PFR uniformly distributes gas into the water and minimizes the size and cost of gas contacting.

GDT Mixing & Contacting Systems 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.

Robust Septage Receiving Provides Reliable Operations And Creates Revenue Robust Septage Receiving Provides Reliable Operations And Creates Revenue

Huber Technology RoFAS Septage Station is designed to handle environments that would cause standard Septage Stations to fail. Easily processes large debris protecting headworks from unpredictable septage. Center feed allows for rapid offloading. Option for automatic hauler station. Revenue opportunities quickly realizes return-on-investment.

AquaNereda AquaNereda

The AquaNereda® Aerobic Granular Sludge System is an innovative biological wastewater treatment technology that provides advanced treatment using the unique features of aerobic granular biomass. The unique process features of the AquaNereda system translate into a flexible and compact process that offers energy efficiency and significantly lower chemical consumption.

Emergency Chlorine Scrubbers Emergency Chlorine Scrubbers

IMS Wet Emergency Chlorine Scrubber Systems are designed to contain and treat accidental releases of chlorine gas. Systems are offered to treat up to 3 tons of chlorine gas. The IMS wet emergency chlorine scrubber is a three-stage single-pass chemical absorption system with very high efficiency horizontal packed bed sections. An induced draft fan pulls the chlorine gas through the scrubber, where it contacts a recirculation caustic solution. The scrubber system is factory pre-assembled, complete with induced draft fan, recirculation pump, instrumentation and controls.

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WASTEWATER CONTAMINANT REMOVAL PODCASTS

Drumming Up Chemical Injection Drumming Up Chemical Injection

The operating ranges for chemical injection need to be large because of the variability of flow in many treatment operations. As Bill McDowell, Vice President of Operations with Blue White Industries explains in this Water Talk interview, “You might be down to as low as 5 or 10 milliliters a minute and then one hour later; you might need to pump 15 gallons a minute out of the same pump and through the same sensor.”

Decentralization Grows With Worldwide Property Development Expansion Decentralization Grows With Worldwide Property Development Expansion

One of the trends in water and wastewater treatment over the past decade has been a growing demand for decentralized systems. Water Talk recently caught up with Nii Mensah, General Manager of Fluence USA, to learn more about the solutions that the new company (formed by the merger of RWL Water and Emefcy) is bringing to market to address communities’ treatment needs

Converting Wastewater Treatment Facilities Into Botanical Gardens Converting Wastewater Treatment Facilities Into Botanical Gardens

Municipal wastewater treatment has traditionally taken place as far away from the populace as possible. But as people flock to cities and encroach ever closer on these facilities, the practice of extending ever further out becomes impractical and expensive. And as water becomes scarcer, cities the world over are looking at recycling wastewater from their citizenry closer to home.

Peracetic Acid (PAA) Disinfection Is Up For The Challenge Peracetic Acid (PAA) Disinfection Is Up For The Challenge

The primary consideration for evaluating disinfection alternatives has to be permit compliance. But as Sarah Stewart, Associate and Senior Project Manager with CDM Smith explains in this Water Talk interview, contact time, high color, nitrates, industrial loads and many other factors all play a role in selecting the most practical and cost effect disinfection solution for your facility.

Different Wastewaters Require Different Decentralized Solutions Different Wastewaters Require Different Decentralized Solutions

When we think decentralization, we often think of smaller and smaller systems, supporting a single-family home or business. So it was interesting to sit down with Bob Rebori, President of Bio-Microbics recently and learn that the Company is being asked to build larger decentralized systems to support a variety of commercial applications.

De Nora Doubles Down On Innovation De Nora Doubles Down On Innovation

With 29 locations, 1,600 employees and research facilities in Japan, Italy and the United States, DeNora is one of the largest disinfection and filtration companies in the world. As Gary Lohse, Regional Sales Manager for De Nora, explains in this Water Online Radio interview, the acquisition of the former Severn Trent manufacturing division coupled with De Nora’s product innovation strength is driving enhancements to some of the most respected brands in the water industry.

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WASTEWATER CONTAMINANT REMOVAL VIDEOS

Electrocoagulation For 'Untreatable' Water Electrocoagulation For 'Untreatable' Water

Whatever the setting, and however contaminated your water, BakerCorp has a solution. That's the message shared by Mehrzad Emanuel (Vice President, Filtration), Doug Herber (Vice President, Water Treatment Technology), and Bruce Lesikar (Director of Engineering) in this video presentation from WEFTEC, where they discuss BakerCorp's electrocoagulation technology and its mobile treatment platform with Water Online Chief Editor Kevin Westerling.

The ozonia Innovation Labs Have Set The New Standard For Ozone Technology The ozonia Innovation Labs Have Set The New Standard For Ozone Technology

The newest family in the SUEZ ozone range, the ozonia® M includes all the latest developments from the ozonia® innovation labs. Ozonia® IGS+ dielectric technology provides even lower energy consumption and increased ozone production capacity up to 25 kg/h resulting in a lower cost per kg of ozone. The new ozonia® smartO3™ automation platform adds a suite of advanced features designed to optimize system performance and reduce operation costs. Finally, an innovative design provides improved resistance to environmental conditions in a more compact footprint.

Welcome To The Power Of Clarity Welcome To The Power Of Clarity

Hach's breakthrough suite of software and connected instruments turns data into powerful operational insights. Watch this short video to see how Hach simplifies the complexities and brings clarity to water management.

Fine Screens Protect Big Investment For North Las Vegas Fine Screens Protect Big Investment For North Las Vegas

The City of North Las Vegas’s treatment facility is a membrane bioreactor (MBR) plant that was brand new when Huber’s rotary fine screens were implemented as part of its new advanced treatment and reclamation process. The facility uses smart technology that enables 24-7 processing with 14 of its operational hours every day unmanned. Huber’s advanced fine screening technology plays a key role in this impressive and innovative technology lineup.  

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WASTEWATER CONTAMINANT REMOVAL NEWS

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