Tube Settlers Vs. Plate Settlers: Comparing Lamella Technologies

Although both types of lamella sedimentation equipment operate on the same principles of solids settling, there are several notable differences between them. 

Submersible Pumps Eliminate Flood Damage Concerns At LaGuardia Airport

During Hurricane Sandy, La Guardia Airport’s five stormwater pump stations lost power, resulting in flooding of an estimated 100 million gallons of water.  The Port Authority of New York & New Jersey quickly moved up its planned renovations and installed nine axial flow pumps capable of moving large volumes of water at low heads. The propeller-type pumps have motors that are invulnerable to submersion during high-water incidents, improving the airport’s stormwater control, flexibility, and operational efficiency.

Improving Dissolved Air Quality With The AirWhip™ DAF Pump

Learn how incorporating the AirWhip™ pump technology into DAF systems can achieve efficient flotation, improving the quality of the dissolved air and allowing maximum adhesion to the floc particles.

Sydney Water Trial Project Using Low Voltage Conductivity To Assess Sewer Pipe Water Tightness

Worldwide water utilities and smart cities are adopting new technologies to replace legacy technologies that have been the mainstay to assess existing pipe conditions and accept new installations as watertight. This white paper includes a detail review of existing assessment techniques, project findings, technology overview, and field results fom each project area included as part of Sydney Water’s trial project evaluation of FELL technology.

Pump Stations That Will Not Fail

Read how an Arkansas utility takes redundancy a step further with a permanent backup system to prevent sanitary sewer overflows. 

An 8-Point Checklist Of Pressure Gauge Application Best Practices

As electronic measurement, microprocessor or computerized control, and wireless networking have worked their way deeper into industrial processes, new opportunities for accuracy, convenience, and cost-saving efficiency have multiplied. Electronic accuracy and communication have delivered performance advantages down to even the simplest functions — including pressure readings.

From Challenge & Prize Competition To Test Prototype: The Nitrogen Sensor That Could Change Residential Onsite Wastewater Treatment

More than one in five households in the United States depend on septic or onsite systems to treat their wastewater. These systems provide critical water quality infrastructure, but they usually are not designed to remove nitrogen to the point that sufficiently protects coastal marine ecosystems. As a result, septic systems are known to contribute to eutrophication (excess nutrients), hypoxia (low levels of oxygen), and harmful algal blooms in marine and estuarine waters.

Register Today For The Newterra Webinar: A Unique Approach To The Traditional SBR: The Argos SBR

We would like to invite you to Register for our upcoming Webinar to discuss how the Argos SBR is expanding options and opportunities for wastewater treatment. Ideal for municipal or industrial applications, the Argos SBR is comprised of the award-winning Aire-O Triton® aerator/mixer and a proven fixed decanter design, along with advanced controls and monitoring systems.

Bar Screen Capture Rates: It's Not So Simple

The water industry has made progress in developing numerical values for screen-capture ratings under specific conditions. One such example is the UK Water Industry Research (UK WIR) standard. Its methodology is sound in measuring capture rate for a specific screen in a channel for a specific time and set of conditions. However, the measurements provided in these studies cannot be assumed to represent the performance of that screen in any other wastewater treatment plant or even in the same channel in a different time or season. 

Stepping Up To Smart Aeration

According to the U.S. EPA, municipal water and wastewater treatment systems account for 30 to 40 percent of the total energy used by municipalities in the United States. In wastewater treatment, the biggest chunk of this energy consumption comes from aeration. Within a typical WWTP, the aeration equipment used to maintain the required dissolved oxygen (DO) levels in the activated sludge process can account for as much as 60 percent of the total plant energy use (Source: EPA.gov). As municipalities and plant operators look for ways to minimize energy use and contain operating costs, aeration is a natural area of focus.

Performance Test Services For UV Advanced Oxidation Systems

UV AOP performance verification requires a robust test matrix covering design, operating, and control conditions. This process includes on-site execution, sample analysis, and troubleshooting to achieve successful regulatory approval.

Microbial Control In Cheese Making

Microbial contamination of food and beverage products is a potentially catastrophic occurrence resulting in foodborne illness or food spoilage. The same nutritive properties that render cheese and dairy products such a valuable food also provide an ideal growth medium for microbes if contamination occurs.

Monitoring IWW Effluents With FP 360 sc Oil-In-Water Sensor

This application note explores a test which demonstrated significant improvements in Oil-in-Water monitoring of industrial wastewater in comparison to the weekly grab sample analysis method.

Getting Clarity On Clarification

Read an overview and maintenance tips for chain and scraper systems. 

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

Comparison Of Ultra Low Range Total Chlorine Residual Limits Of Detection And Quantitation Across The Water Industry

Limits of Detection and Quantitation are key to understanding analytical instrumentation capabilities, especially when non-optimal process control can lead to damage of sensitive equipment due to insufficiently accurate readings.

FLEX-TEND® Flexible Expansion Joints, Features And Specifications

FLEX-TEND® flexible expansion joints are designed to protect structures and pipelines from differential movement whether this movement is earthquake induced or the gradual motion of soil subsidence. This bulletin offers a concise listing and discussion of the important features and materials of the double and single ball assemblies.

Application Note: Environmental Applications Of The Agilent 1290 Infinity UHPLC: The Evolution Of Chromatography This application note presents examples of the use of UHPLC (ultrahigh performance liquid chromatography) for environmental applications using the new Agilent 1290 Infinity LC. By E. Michael Thurman and Imma Ferrer Center for Environmental Mass Spectrometry Department of Environmental Engineering University of Colorado Boulder, CO, USA

Environmental Applications Of The Agilent 1290 Infinity UHPLC: The Evolution Of Chromatography This application note presents examples of the use of UHPLC (ultrahigh performance liquid chromatography) for environmental applications using the new Agilent 1290 Infinity LC. By E. Michael Thurman and Imma Ferrer Center for Environmental Mass Spectrometry Department of Environmental Engineering University of Colorado Boulder, CO, USA

Vacuum Sewer Truck: Optimize Cleaning Performance With The Right Accessories

Selecting the correct accessories will maximize cleaning while minimizing water use, tank refills, labor, and headaches.