WASTEWATER CASE STUDIES AND WHITEPAPERS

  • Trinity River Authority Increases Filtration Capacity And Decreases Backwash With AquaDiamond® Cloth Media Filters By Aqua-Aerobic Systems
    Trinity River Authority Increases Filtration Capacity And Decreases Backwash With AquaDiamond® Cloth Media Filters By Aqua-Aerobic Systems

    The Trinity River Authority (TRA) of Texas established its Central Regional Wastewater System (CRWS) in 1957 and began operations in December 1959.

  • Innovative And Cost-Effective Solutions For Activated Sludge And Nutrient Removal Applications Municipalities across the nation grapple with the treatment challenges associated with escalating state and federal regulatory requirements on the heels of limited or declining budgets. By Ayman Shawwa, P.E., Ph.D., BCEE, PMP, Aeration Industries International
  • Ultrapure Boiler Water Production From Municipal Wastewater

    The term wastewater can be applied to a wide range of water sources from municipal sewage to storm runoff to industrial discharge water. By Michael Sheedy, Vice President of Technology and George Di Falco, Marketing Communications, Eco-Tec Inc.

  • Oldest Town In West Virginia Adopts Modern Wastewater Treatment System
    Oldest Town In West Virginia Adopts Modern Wastewater Treatment System

    Along the banks of the Potomac River and nested in the lower Shenandoah Valley, sits the quaint and historical Shepherdstown, the oldest town in West Virginia with nearly 1,200 residents and home to Shepherd University which serves about 4,000 students. The town attracts visitors year-round who come to take in the shops and bistros along German Street and visit the town’s many historical landmarks including the Mecklenburg Tobacco Warehouse. This 1920’s landmark housed the town’s waterworks that supplied water to Shepherdstown residents until the mid ‘70s.

  • The Basics Of Disinfection
    The Basics Of Disinfection

    From utility water to wastewater, whether used in industrial processes or for drinking, disinfection plays a prominent role in providing safe and useable water. Water free from pathogens and other microorganisms ensures processes run efficiently and people are kept safe from disease. By Harland R Pond, Business Development Manager – Water Treatment

  • Biothane Delivers Anaerobic Wastewater Treatment To Veryfine Products
    Biothane Delivers Anaerobic Wastewater Treatment To Veryfine Products

    Biothane’s turnkey project was designed to treat wastewater by providing a series of treatment processes. Pre-treatment consists of a bar screen, influent sump, grit removal and rotary screen to remove debris from the influent stream.

  • Article: On-Site Wastewater Reuse Located along the banks of one of the largest tributaries to the Mississippi River, this 100 MGD (million gallons per day) wastewater treatment plant has a large demand for service water with low suspended solids.
  • Monitor Your Pump For Process Efficiency
    Monitor Your Pump For Process Efficiency

    Pumps are all too frequently one of the most overlooked and abused pieces of equipment in process automation, yet nothing moves without them and a process becomes inefficient when they don’t operate properly or completely shutdown. By Jim Delee, Sr. Member Technical Staff, Fluid Components International

  • Monster Compactor Cleans-Up At Seattle Treatment Plant In 2004 a team of researchers from King County’s Wastewater Treatment Division took on the task of cleaning up problems with the discharged screenings at their two treatment plants. The screenings were filled with excessive water, fecal and other organic matter. By JWC Environmental
  • Article: Expanded Use Of Split Seal Technology For Large Pumps And Agitators
    Article: Expanded Use Of Split Seal Technology For Large Pumps And Agitators New advances in split mechanical seals have expanded its application for use in both water and wastewater systems. These systems move vast amounts of fluid through pipes and tanks. Water-based fluid systems comprise the largest fluid transport systems in the world with wastewater streams being the largest. While the systems’ designs can vary by region, most use centrifugal pumps to move fluid. Many of the centrifugal pumps are very large and difficult to assemble, so they have not typically been sealed by mechanical seals which require total equipment disassembly. However, split mechanical seals have advanced so that these pumps can now be sealed without equipment disassembly.
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WASTEWATER APPLICATION NOTES

  • A Comparative Study Of On-Line And Laboratory TOC Analyzers For Analysis Of Municipal Wastewater
    A Comparative Study Of On-Line And Laboratory TOC Analyzers For Analysis Of Municipal Wastewater

    This application note presents comparative data obtained on influent and effluent wastewater samples using laboratory and on-line TOC analyzers employing the heated sodium persulfate oxidation technique in USEPA-approved methods 415.3 and SM 5310C.

  • Comparison of UV vs. Sodium Hypochlorite (Fact Sheet)
    Comparison of UV vs. Sodium Hypochlorite (Fact Sheet)

    Hypochlorite has some significant environmental concerns associated with DBPs and residual toxicity.

  • Chlorine Measurement In Wastewater And Regulated Discharge Requirements
    Chlorine Measurement In Wastewater And Regulated Discharge Requirements

    Homes, industry, schools, and businesses all generate sanitary waste, or sewage. Sewage treatment is a multistage process that cleans up wastewater before discharge or reuse. In the final step of the treatment, disinfectants are added to kill disease-causing organisms. Common disinfectants are chlorine gas and sodium hypochlorite. Chlorine dosage levels are designed to leave almost no residual in the wastewater after treatment

  • Simultaneous Determination Of Total Bound Nitrogen (TNb) And Total Organic Carbon (TOC) In Aqueous Samples Total bound nitrogen (TNb) consists of dissolved ammonia, nitrates, nitrites, amines, and other organic nitrogen-containing compounds. TNb measurements represent an alternative to Total Kjeldahl Nitrogen (TKN) analysis for rapid screening of industrial wastewater, drinking water,agricultural run-off, and surface waters. By OI Analytical
  • Primary Wastewater Treatment: Influent Monitoring
    Primary Wastewater Treatment: Influent Monitoring

    The raw sewage entering a wastewater treatment plant comes from a variety of sources. In addition to effluent from domestic users, effluent from industrial users and storm water run off can be present.

  • Disinfection And Emerging Contaminant Removal With HyDOZ®
    Disinfection And Emerging Contaminant Removal With HyDOZ®

    In the summer of 2012, BlueInGreen partnered with a facility in Arkansas to study disinfection of wastewater and removal of emerging contaminants of concern (ECC) by utilizing dissolved ozone. The plant has a firm capacity of 12 MGD and includes primary clarification, activated sludge, secondary clarification, and sand filtration prior to the existing UV system.

  • Aerated Biological Nitrogen Removal
    Aerated Biological Nitrogen Removal

    Excess ammonia in receiving waters causes algal blooms that decrease oxygen levels. For this reason, many wastewater treatment plants (WWTPs) must limit ammonia in discharge. Mike Rousey, Hach Company

  • Pipe Repair On A Budget
    Pipe Repair On A Budget

    A new pipe-repair solution promises to save time and money, while also being sustainable, long-lasting, fully scalable, and safe for workers.

  • Dissolved Oxygen Measurement In A Wastewater Treatment Plant
    Dissolved Oxygen Measurement In A Wastewater Treatment Plant

    Breakdown of organic wastes entering a wastewater treatment plant is accomplished by using a biomass or blend of beneficial microscopic organisms, bacteria, and solids. This converts the non-settleable solids (dissolved and colloidal matter) into settleable solids, carbon dioxide, water, and energy.

  • On-Line Phosphorous Measurement Takes The Guesswork Out Of Alum Treatment
    On-Line Phosphorous Measurement Takes The Guesswork Out Of Alum Treatment

    Phosphorous promotes eutrophication in surface waters and helps create conditions for algal blooming and oxygen depletion. Some phosphorous removal can occur naturally in a conventional biological wastewater treatment facility, but the result is not reliably compliant with increasingly strict limits on permissible phosphate levels in effluent discharged to receiving streams, ponds and lakes. By Bob Dabkowski, Hach Company

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WASTEWATER PRODUCTS

Traffic Rated Screen Drain Grates

Traffic Rated Screen Drain Grates

Most lift stations and basins require separate drain inlets that do little to keep out large solids such as gravel, branches and general litter than can destroy pumps. ClearBlu has developed a traffic rated grate system that utilizes perforated plate with 1/4″ holes. The grate sits in a heavy grate frame that embeds in concrete. By embedding the frame in concrete, traffic weight is carried by the frame and concrete and not the basin. This allows the basin to be secured and sealed to a poly or fiberglass basin.

6920 V2 Sonde

6920 V2 Sonde

The YSI 6920 V2 sonde is an economical logging system, ideal for long-term in situ monitoring and profiling.
RSS - Externally-Fed Screen

RSS - Externally-Fed Screen

RSS Series of Externally-fed Rotary Screens have slotted wedgewire, cylindrical drums that rotate on two pillow block bearings and self clean on every revolution.

AE

AE

4 → 8 lb/day MOS
Automated for ease of use and peace of mind. Economically improves your bottom line.

HS150HH Heidra Hydraulic Submersible Pump

HS150HH Heidra Hydraulic Submersible Pump

The Godwin HS150HH hydraulic submersible pump is a compact self-contained pumping unit featuring a 6" (150 mm) submersible hydraulic side discharging pump and a diesel driven power pack.
PASSAVANT® Surface Brush Aerator MAMMUTROTOR®

PASSAVANT® Surface Brush Aerator MAMMUTROTOR®

The PASSAVANT® surface brush aerator MAMMUTROTOR® provides a transfer of oxygen into the activated sludge tank and optimal mixing of the activated sludge, ensuring an even distribution of biomass, organics and oxygenated water creating ideal conditions for biological activity.

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LATEST INSIGHTS ON WASTEWATER

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WASTEWATER VIDEOS

Stories That Matter: Seeing Green In Philly

Stories That Matter: Seeing Green In Philly

See how we are delivering smart, sustainable stormwater management solutions for Philadelphia and changing the way the world views green infrastructure.

Video: Importance Of 'Right-Sizing' Positive Displacement Blowers

Video: Importance Of 'Right-Sizing' Positive Displacement Blowers

Learn about the importance of "right-sizing" positive displacement blowers in wastewater treatment plants. Includes several examples and tips for saving energy, keeping machines within operating ranges and more.
Video: ZB Turbo Blower In A Wastewater Treatment Plant

Video: ZB Turbo Blower In A Wastewater Treatment Plant

Atlas Copco's ZB centrifugal blower with VSD (Variable Speed Drive) in action at the Waste Water Treatment plant of Beauvais (France).

Video: Vaughan Centrifugal Chopper Pump In Action

Video: Vaughan Centrifugal Chopper Pump In Action

The Vaughan Chopper Pump is a centrifugal pump with the unique ability of chopping all incoming solids prior to pumping. This not only protects the pump from clogging, but also provides added benefit to downstream components, processes, and the environment.

Video: Hanna Instruments 98703 Portable Turbidity Meter

Video: Hanna Instruments 98703 Portable Turbidity Meter

The Hanna Instruments 98703 portable turbidity meter is perfect for stormwater testing.
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