WASTEWATER TREATMENT

Rectangular vs. Circular Clarifiers: Which Is Better?
Rectangular vs. Circular Clarifiers: Which Is Better?

Both rectangular and circular configurations have been commonly used in clarifier basins. The relative merits of the two have been discussed at length for decades. Historically, the selection of rectangular versus circular clarifiers has been based on past experience and the preference of the design engineer or design company.

WASTEWATER TREATMENT CASE STUDIES AND WHITE PAPERS

  • Case Study: Mazzei AirJection® Aeration System Installed In Alabama Field Erected WWTP A design/build contractor needed a quiet, efficient aeration system for a 250,000 GPD field erected WWTP. This plant was to be located adjacent to a school. A restriction on ambient noise at the location of the proposed WWTP required a quiet aeration process. By Mazzei Injector Company, LLC
  • Packaged Wastewater Treatment Plant Meets Tricky Challenge
    Packaged Wastewater Treatment Plant Meets Tricky Challenge

    Packaged Wastewater Treatment Plants offer many advantages, flexibility notwithstanding. One plant in particular, located in Georgia, needed to be upgraded to handle the increased flows from a growing city and to address new effluent discharge regulations.  The tight plant site offered minimal opportunity for routine expansion of the packaged wastewater plant volumes, hence special designs were needed. Learn how this 200,000 GPD system is thriving.

  • Case Study: Aerator/Mixer System Gives China WWTP Trouble-Free Performance
    Case Study: Aerator/Mixer System Gives China WWTP Trouble-Free Performance

    Aeration Industries International, Inc. is playing a key role in cleaning up water worldwide to help preserve the earth’s most precious resource, water. When the Chinese city of Lin An planned an expansion to their oxidation oval system, officials were looking for a new type of aeration system that would offer process performance and trouble free operation. The company's AIRE-O2 TRITON process aerator/mixers were the ideal solution for the Lin An wastewater treatment facility.

  • Case Study: More Power. More Control. Cuyahoga County is the most populous county in Ohio, with nearly 1.4 million residents. Part of Greater Cleveland, the county is named after a Native American word meaning "crooked river." By The Gorman-Rupp Company
  • Submersible Aerators Blast Off At Naval Air Station WWTP
    Submersible Aerators Blast Off At Naval Air Station WWTP

    When the Jacksonville, Florida Naval Air Station needed to increase oxygen in their aeration basins, they turned to RWL Water. Five submersible HURRICANE aerators provide bottom-up mixing, drawing surface air and dispersing it in a 360-degree pattern near the basin floor. Long bubble hang time results in excellent oxygen transfer, and ensures excellent BOD and ammonia removal, treating flows up to 3 MGD.

  • Lift Stations: Attacking The 'New Sewage' With Vaughan Chopper Pumps
    Lift Stations: Attacking The 'New Sewage' With Vaughan Chopper Pumps

    Disposable, throw-away products are making raw sewage pumping tougher than ever. The Jefferson Street Pump Station at the City of Centralia, WA had a problem demanding a cost-effective solution. By Glenn Dorsch, P.E, VP/Chief Engineer, Vaughan Co. Inc.

  • Case Study: Continuous Monitoring Safeguards Malaysia’s Water Quality
    Case Study: Continuous Monitoring Safeguards Malaysia’s Water Quality

    Well on the way to becoming a total environmental monitoring solutions provider, Alam Sekitar Malaysia Sdn. Bhd. has applied its expertise in air and water quality monitoring to aid the Malaysian government in safeguarding the nation's water supply. A broad contract between ASMA and Malaysia's Department of the Environment partners the two entities in a highly efficient system that gathers long-term trend data on water quality while also maintaining an early warning system to alert officials and water treatment operators of pollution discharges in key reaches of the country's river system

  • Case Study: Gorman-Rupp Addresses Concerns For Higher Head, Greater Flow Through Research & Development Increasingly, end users in the construction, industrial and wastewater markets are realizing the need for higher heads or to pump liquids greater distances, over challenging topography. Professional Engineers and municipal designers have previously had little choice but to overextend pump performance limits of conventional self-priming centrifugal trash pumps, potentially shortening the life of the pump and risking safety issues in the process. By The Gorman-Rupp Company
  • Headworks Bio Commissions First IFAS System In Costa Rica
    Headworks Bio Commissions First IFAS System In Costa Rica

    In late 2013, Headworks Bio Inc. was awarded a contract with General Contractor Soluciones Tecnicas Ambientales, S.A. (SOLAMSA) to supply an IFAS system to upgrade the existing Ptar El Roble conventional activated sludge (CAS) treatment facility in Puntarenas, Costa Rica — the first IFAS installation in the country.

  • N-Technology Impeller Pumps Eliminate FOG Buildup At Resort And Casino
    N-Technology Impeller Pumps Eliminate FOG Buildup At Resort And Casino

    The successful addition of new restaurants and clubs at a resort and casino in Upstate NY brought with them a flow of fats, oil and grease (FOG), which gelled into a floating blanket atop the main station’s wet well, where the sewage flows converge from the network of smaller stations throughout the property boundaries.

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WASTEWATER TREATMENT APPLICATION NOTES

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WASTEWATER TREATMENT PRODUCTS

Capital Controls® Series WP70CV3 Gas Feeders Capital Controls® Series WP70CV3 Gas Feeders

Easy to install, each Series WP70CV3 wall panel feeder is factory tested and needs no field adjustment prior to start-up. Eleven different flowmeter capacities ranging from 5 to 3000 PPD (100 g/h to 60 kg/h) provide versatility in meeting gas flow requirements.

Vertical Wet Well Centrifugal Chopper Pump Vertical Wet Well Centrifugal Chopper Pump
Vaughan's Vertical Wet Well Centrifugal Chopper Pump is available in 3" through 12" discharge sizes, with lengths up to 25 feet, flows from 50 GPM to over 7000 GPM, and heads up to 280 feet
Cantilever Centrifugal Chopper Pump Cantilever Centrifugal Chopper Pump
Vaughan's Cantilever Centrifugal Pump is available in 3" through 6" discharge sizes, and is designed for waste sumps with high solids, abrasives or corrosives content
Submersible Recirculator Centrifugal Chopper Pump Submersible Recirculator Centrifugal Chopper Pump
All 3 inch through 6 inch Vaughan Electric Submersible Centrifugal Chopper Pumps are available with a recirculating nozzle option for pre-mixing and recirculation of pits prior to pump out
Self Priming Centrifugal  Chopper Pump Self Priming Centrifugal Chopper Pump
Vaughan's new PRIME-CUT Self Priming Centrifugal Chopper Pump incorporates all of the chopping abilities of Vaughan's standard line of Chopper Pumps, but with the added ability to prime over 20 feet
Vertical Dry Pit  Centrifugal Chopper Pump Vertical Dry Pit Centrifugal Chopper Pump
The Vaughan Vertical Dry Pit Centrifugal Chopper Pump is available in 3" through 12" discharges, with flows from 50 GPM to over 7000 GPM and heads up to 280 feet
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LATEST INSIGHTS ON WASTEWATER TREATMENT

  • Rescuing Failed Aeration Systems
    Rescuing Failed Aeration Systems

    In wastewater treatment, aeration systems are more than just critical. They can be seen as the central nerve of the whole operation, the part of the process that usually costs the most to run and can cause the most havoc when it malfunctions.

  • Reducing Water-Food Nexus Pressures In America
    Reducing Water-Food Nexus Pressures In America

    Agricultural production is one of the most important sectors of the U.S. economy, contributing more than $300 billion to the country each year. When food service and other agriculture-related industries are included, this figure rises to over $750 billion.

  •  The Synergy Between Activated Carbon And Ion Exchange
    The Synergy Between Activated Carbon And Ion Exchange

    Jacobi Carbons is a renowned voice in activated carbon (AC) solutions for water treatment, as its name would imply. But its employees also possess a high-level expertise on ion exchange (IX) and how the two processes can be combined for optimal results. Water Online tapped into this knowledge, speaking with Jeffrey Singer from Jacobi to break down the processes’ role in water treatment, the problems they can solve as a team, and who utilizes this synergy best.

  • A Guide For Assessing Industrial Discharge
    A Guide For Assessing Industrial Discharge

    A new best practices guide from the U.S. EPA provides discharge permit writers and pretreatment coordinators with tips on helping wastewater treatment plants deal with industrial effluent.

  • Lessons In Protecting Against Nutrient Pollution
    Lessons In Protecting Against Nutrient Pollution

    With new information on the pervasiveness of nutrient pollution in the country’s drinking water sources, the U.S. EPA has offered lessons on turning the tide.

  •  When It’s Time For Wastewater UV Upgrades (Article)
    When It’s Time For Wastewater UV Upgrades (Article)

    Disinfection is a crucial stage in municipal wastewater treatment. It’s necessary for eliminating pathogens and keeping the public safe, and usually that means turning to ultraviolet (UV) treatment. But when it’s time to adapt a plant to the latest UV equipment, some facilities or municipalities may hesitate.

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WASTEWATER TREATMENT VIDEOS

Treating Biosolids And Creating Energy At Anglian Water

GE's Advanced Anaerobic Digestion and Jenbacher Gas Engines help Anglian Water treat more biosolids to create energy at their facility. p

TrojanUV Solo Lamp™ Technology (Video) TrojanUV Solo Lamp™ Technology (Video)

It is no longer necessary for municipalities installing UV technology to make a choice between energy-efficiency and a small footprint.

WRF Direct Potable Reuse Research Projects

Water Research Foundation at the Silicon Valley Advanced Water Purification Center talking with Jim Fiedler and Andrew Salveson about upcoming WRF Direct Potable Reuse research projects.

Drought Forum Webinar: The Growing Demand For Re-Used And Brackish Water Drought Forum Webinar: The Growing Demand For Re-Used And Brackish Water

The Western Governors' Drought Forum webinar “Once Marginal, Now Crucial: The Growing Demand for Re-used, Produced, and Brackish Water” explores the technological and regulatory obstacles to utilizing re-used, produced, and brackish water.

Science Safeguards Drinking Water From Harmful Algal Blooms

Toxins from harmful algal blooms are increasingly contaminating source waters, as well as the drinking water treatment facilities that source waters supply. EPA researchers are helping the treatment facilities find safe, cost effective ways to remove the toxins and keep your drinking water safe.

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