WASTEWATER CONTAMINANT REMOVAL WHITE PAPERS & CASE STUDIES

Savings Helps MABRs Gain Traction In Municipalities
Savings Helps MABRs Gain Traction In Municipalities

An MABR is essentially a biological wastewater treatment process that utilizes seemingly passive aeration through oxygen-permeable membranes. Oxygen transfer through the MABR membranes is diffusion based: driven by concentration differences such that oxygen passes from air at atmospheric pressure into water at a higher hydrostatic pressure. This oxygen transfer mechanism, wherein air is supplied to the process at very low pressure, is the reason MABRs have significantly lower energy consumption compared to other wastewater treatment processes, such as conventional activated sludge (CAS), that utilize diffusers. This energy savings is one of the key reasons MABRs are gaining traction in the municipal wastewater industry.

  • UV System Saves Energy And Reduces Maintenance
    UV System Saves Energy And Reduces Maintenance

    After a 17-year run, a plant’s UV disinfection system was limping toward the finish line. The city needed to identify a replacement UV system that fit into the same channel, offered lower power consumption, and contained a practical ease of maintenance to reduce the amount of labor consumed on the equipment. The new system requires dramatically less power to run while simultaneously streamlining upkeep.

  • 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.

  • Fluence’s MABR For Wastewater Treatment features Passive Aeration And Saves Up To 90% On Energy Costs
    Fluence’s MABR For Wastewater Treatment features Passive Aeration And Saves Up To 90% On Energy Costs

    The Bordeaux region of St. Thomas had a pressing need for a wastewater treatment plant that produces high effluent quality. Its existing plant was old and did not meet regulation nor industry standards. Fluence, together with its partner SD&C Inc., built an MABR-based wastewater treatment plant from the ground up, utilizing whatever existing pieces of equipment could be used from the old plant.

  • Treatment Plant Upgrade Includes Conversion To On-Site Sodium Hypochlorite Generation To Ease Operations And Increase Safety
    Treatment Plant Upgrade Includes Conversion To On-Site Sodium Hypochlorite Generation To Ease Operations And Increase Safety

    Fairmont, Minnesota, known as the City of Lakes, is located in Martin County in southern Minnesota. The city’s water treatment plant serves a mix of customers including approximately 3,900 residential taps, 500 commercial and 17 industrial customers. Looking to the future, Fairmont city leaders began to investigate upgrading the city’s water treatment plant in 2010. The existing plant had been in operation for well over 70 years and relied on gas chlorine for disinfection.

  • 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.

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WASTEWATER CONTAMINANT REMOVAL PRODUCTS

Aspiral™ Packaged Wastewater Treatment Solution (MABR) Aspiral™ Packaged Wastewater Treatment Solution (MABR)

Aspiral™ is a smart, packaged wastewater treatment solution based on the Membrane Aerated Biofilm Reactor (MABR) technology.

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

New compact chlorinator incorporates pioneering Capital Controls® technology with exciting new features. All three models - from 10-10,000 ppd - are available with automatic or manual feed and a larger 10” flowmeter. Sonic operation on the 4100 model eliminates the need for a differential pressure regulator.  On automatic models, an additional controller isn’t needed, reducing components – and costs. 

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.

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WASTEWATER CONTAMINANT REMOVAL PODCASTS

Ozonia M and FiltraFast Provide New Options For Treatment Facilities Ozonia M and FiltraFast Provide New Options For Treatment Facilities

If you don’t need the performance of an ultrafiltration membrane but also want to avoid the large footprint of a conventional media filter, you might want to consider FiltraFast extreme rate compressible media filters. As Ryan Hess, Director of Advanced Separation with SUEZ Water Technologies suggests in this Water Talk interview, “They provide roughly ten times the hydraulic loading rate of conventional media filters.”

Getting Chlorine Disinfection Right Getting Chlorine Disinfection Right

Of all the process considerations facing wastewater treatment operators, disinfection is one of the most important. In this exclusive Water Talk interview, Gary Lohse, Technical Sales Manager, Disinfection with De Nora Water Technologies, discusses how disinfection has become increasingly complex over time. Lohse reviews a host of selection criteria including target microorganisms, control strategies, disinfection by-products, capex and safety.

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.

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WASTEWATER CONTAMINANT REMOVAL VIDEOS

Brackish Water Desalination Plant Draws Rave Reviews Brackish Water Desalination Plant Draws Rave Reviews

Construction took just five months for this ecologically-friendly municipal desalination plant, designed to treat brackish water with high nitrate levels. Watch as the plant manager speaks about the advantages this system has provided.

Grit & Grease: Video Grit & Grease: Video

Schreiber’s grit and grease removal system removes both grit and grease in a common structure. Two parallel rectangular concrete channels combine to separate and collect grit and grease: one to settle grit particles for removal, and the other to collect grease using Schreiber’s patented air-skimming technology. The system meets the specific flow requirements of each facility and handles large fluctuations in flow. The typical detention time at the design peak flow is five minutes.

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.

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