Finding The Best Bearing Solution For Water Treatment Blowers

Edward Paro of Sulzer compares the strengths and weaknesses of two rival turbocompressor technologies: air foil bearings and active magnetic bearings.

Seeing Through The FOG (Fats, Oils, And Grease)

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

Dissolved Air Flotation (DAF) Pilot System Achieves Removals In Excess Of 95 Percent

The aluminum casting facility of a producer of semifabricated aluminum products utilizes a closed-loop contact water system that supplies water to multiple DC casting pits. An existing induced air flotation (IAF) system was used for the reduction of TSS, NTU, oil and grease, followed by a cooling tower. The treated and cooled water was then reused in the caster as contact water. The IAF had a removal efficiency of approximately 40 percent, required regular maintenance attention, operated at 125 HP and used an excessive amount of chemistry, resulting in extraordinarily high operating costs.

Royal Environmental Systems And Water Tectonics Design State-Of-The-Art Stormwater Treatment System Located 20 miles east of Seattle,Washington, Redmond is home to 50,000 residents and many high-tech and biomedical companies, including Microsoft. Redmond’s downtown drainage area is dominated by commercial, industrial and roadway areas, with typical surface pavement contaminants such as metals, nutrients and sediments

5 Tips On Avoiding Murphy's Law With Big Pipe Repairs

Here is one example of how challenging a 36”-line repair can become, plus five guidelines to help decision-makers minimize the risks of the same happening to them.

How Digitalization Can Boost Natural Disaster Resiliency In Municipal Water And Sewerage Treatment

Digitalization of the municipal water treatment industry is fragmented today, with instrumentation, control, and automation technologies mixed with manual operational activities. Such infrastructures can be detrimental in cases of hydro-geological events, such as severe storms and earthquakes. The good news: When natural disasters strike, digitalization can help get municipal water treatment back online quickly and effectively.

'Smart Water' Benefits Without 'Big Data' Intimidation

For water treatment plants (WTPs) and wastewater treatment plants (WWTPs) pressured to do more with their data despite being pinched by a tight budget and a need to retrain employees, a new strategy can make all the difference. Here is how one such approach makes ‘smart water’ analytics less intimidating and how it has helped one utility make more cost-effective decisions while saving precious time and money.

How Does The Force Balanced FLEX-TEND® Product Work?

There are numerous configurations of flexible and expansion joints available to the design engineer. They include bellows joints, flexible hoses, bolted-mechanical couplings, and ball joints. In 1989 EBAA Iron, Inc. introduced the FLEX-TEND® joint (FT) flexible expansion joint product into the US market. Constructed of ductile iron, the product is comprised of two ball joints joined by an expansion joint. For the first time one product was available to protect pipelines and pipeline connections from differential movement resulting from seismic activity and soil expansion/contraction in areas of poor soil support, frost heave, and transitions from stable to unstable areas.

Sewer And Drain Equipment Maintenance

Understanding common problems and learning how to prevent and address them can save you both time and money in the long run. Here is a brief guide to proper maintenance of your drain cleaning equipment.

A New Approach To Installing Blower Systems

Upgrading the aeration system in a wastewater operation is typically burdensome because of the design work, permits, construction, and commissioning required for a structure before a new blower system can be installed. An affordable, purpose-built blower system delivered in its own secure, weatherproof enclosure may be a viable alternative that can be commissioned sooner and at lower cost than one that requires renovations or new construction.

Instruments For Environmental Applications

Keeping the water in our lakes, rivers, and streams clean requires monitoring of water quality at many points. Over the years ever increasing environmental concerns and regulations have heightened the need for increased diligence and tighter restrictions on wastewater quality.

Pile Cloth Media Filtration For Clean Utilities

Cooling towers and boilers consume the most fresh water in the industry, with industrial process waters carrying the balance. Power plants and refineries use more water volume for the cooling process than any other area of the facility. Mining and food and beverage industries consume higher volumes for their processes. Clean water may come from a range of sources, including clarified surface waters, groundwater or properly treated wastewater (reuse) sources.

Is ORP Really Your Best Option For Dechlorination Measurement?

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.

LLT100 Laser Level Measurement In Water And Wastewater

In the water and wastewater market segment, the LLT100 laser level transmitter provides an efficient way to measure levels of liquids.

A Non-Intrusive Solution For Measuring Wastewater Flow In A WWTP's Iron Pipes

A municipal association needed to understand if wastewater was being equally distributed across two cast iron pipes within its wastewater treatment plant. Learn how clamp-on ultrasonic measurement helped successfully measure the flow.  

Ultrasonic Level Measurement In Water And Wastewater Plants

Radar technology is often viewed as the “best” method of level measurement, but this isn’t necessarily true in the water industry.

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.

Analyzing Total Organic Carbon In Sea Water

The analysis of Total Organic Carbon (TOC) in seawater can be both challenging and expensive. The concentration of organic carbon in seawater is of considerable interest. The effect this matrix can have on TOC analyzers can lead to rapid consumable turnover, costly maintenance and repairs.

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.

Improved Efficiencies In TOC Wastewater Analysis For Standard Method 5310B And EPA Method 415 Total organic carbon (TOC) measurement is of vital importance to the operation of water treatment due to organic compounds comprising a large group of water pollutants. TOC has been around for many years, and although it is a relatively simple analysis in theory, operational efficiency is paramount.