The energy and maintenance costs associated with mechanical aeration are compelling managers of municipal and industrial wastewater treatment plants (WWTP) to find alternate technologies. The goal is to provide more efficient wastewater aeration and mixing by reducing high operation and maintenance costs associated with mechanical aerators. By Joel Bleth, president, SolarBee Inc.

Maintenance professionals within Water and Wastewater Treatment facilities are as busy as ever. To keep up with growing demands on their time, they are always looking for ways to improve the reliability and maintenance requirements within their scope of responsibility.

Ozonation and biologically active filtration (O3-BAF) is being increasingly used to address the issue of organic micropollutants (OMPs) in wastewater treatment and potable reuse.

A review of different methods and devices for FOG removal, with emphasis on cost control, lowered power profiles, and efficacy. By Douglas D. Sunday, water and wastewater Class A operator and Dr. J.H. Wakefield, consulting analytic chemist and environmental/materials engineer

What’s a business leader to do at time such as this? What is a manufacturing business leader to do at a time such as this? Does it really matter whether a business is a service provider such as a restaurant or is a manufacturer? If so, does it matter what the company manufactures?

This uranium, arsenic and gross alpha removal pilot study was conducted for the Schurz Elementary School treatment facility in Schurz, Nevada. The Schurz Elementary School well contains concentrations of uranium, arsenic and gross alpha in excess of the State regulated Maximum Contaminant Levels (MCL).

A utilities department was experiencing frequent unscheduled maintenance visits and corresponding unbudgeted repair bills for the pumps at the township’s main pump station.

Stormwater can transport pollutants, such as heavy metals, pathogens, and nutrients, which threaten the quality of rivers, lakes, and oceans. Many stormwater operators have not considered or planned for the challenges in predicting and mitigating transport of biological agents (e.g., anthrax-causing bacterium) or long-lasting radionuclides (e.g., cesium-137) that may result from a terrorist attack.

Cibola is a small community located in Southern Arizona along the Colorado River. With a growing population, the community decided to install a centralized water system to replace individual wells.

Sludge handling presents a growing set of challenges for municipal and industrial wastewater operators, who are increasingly turning toward a natural solution. This alternative method results in a reduced biosolids load that lowers hauling and tipping fees, reduces process energy costs, cuts down odors, and fosters the natural cleaning of pipes and fittings.

In this application note, explore considerations for achieving more reliable accuracy when quantifying dechlorination results for applications ranging from RO membrane protection to wastewater discharge compliance.

The 2000PV is a restraint for PVC pipe and the standardized mechanical joint. This product is the result of years of testing and evaluation and its performance has been proven by thousands of hours of proof tests, as well as third-party evaluations. This report describes the 2000PV through the 12" size.

Industrial power plants or co-generation power plants utilize steam for industrial purposes other than power production.

The Littleton/Englewood wastewater treatment plant, Colorado, put in place processes to effectively monitor the levels of ammonia in their wastewater treatment.

The QuEChERS (Quick-Easy-Cheap-Effective-Rugged-Safe) sample extraction method was developed for the determination of pesticide residues in agricultural commodities.

A water purveyor was in urgent need of a chemically resistant flow instrumentation with a long life of service that allowed reliable and long-term stable dosing of the sodium hypochlorite solution.

Coriolis measurement has been adopted as a default technology in many application scenarios due to its high accuracy and immunity to process variables (temperature, pressure and flow profile). However, Coriolis wasn't always widely accepted. Two applications, in particular, helped what was once a nascent flow measurement technology gain a foothold in the marketplace.

Monitoring phosphate during the wastewater treatment process allows for fine-tuning and optimizing chemical dosing for removal of phosphate, which provides significant cost savings to the plant while protecting the aquatic environment downstream of the facility.

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

There are several basic methods for reducing harmonic voltage and current distortion from nonlinear distribution loads such as adjustable frequency drives (AFDs). Following is a description of each method, along with each method’s advantages and disadvantages.