The adoption of water reuse can be unavoidable due to water scarcity, but it may also be a choice. And when it comes to choices, cost is usually a deciding factor. Gary Hunter, Senior Wastewater Process Engineer with Black & Veatch, helps make sense of the dollars required for recycled water schemes in this Water Talk interview. In it, he shares three keys affecting the cost for reuse, as well as concepts and technologies that can be used to improve reuse economics. Hunter also states the case for why utilities — and not just those in the drought-plagued West — should consider reuse.
Want to hear some good news on water reuse? Listen to this Water Talk interview with Christina Brown, Director of Program Management at Brown and Caldwell, to learn about the EchoWater project, which will allow the Sacramento Regional County Sanitation District — the largest inland discharger west of the Mississippi — to reuse half of their discharge while also reducing nitrogen loading into the Sacramento River. Brown discusses the project's unique aspects, the technologies involved, the timeline for completion, and the anticipated impact.
There’s a lot to be said for the old adage, “Use the right tool for the job.” When it comes to flow meters for municipal or industrial water treatment plant (WTP) and wastewater treatment plant (WWTP) operations, however, the sheer number of choices can be overwhelming. That is where using a process of elimination to winnow out styles that don’t fit the performance criteria of an application can make it easier to compare the few remaining options. Here is a checklist of considerations to accelerate that process.
Silicon carbide, or SiC, membranes are made from one of the earth's hardest natural materials, making them extremely strong and resilient. They are also hydrophilic, lending to a high flux rate (4 to 6 times that of other membranes) and making them particularly suitable for stormwater/CSO applications.
Reliable and effective disinfection is a cornerstone of water and wastewater treatment, needed to protect public health. Most drinking water utilities are required to maintain a minimum disinfectant residual in the distribution system. This ensures adequate chemical was applied and remains in the system to kill pathogens. The most commonly used disinfectants — chlorine gas and bulk sodium hypochlorite — require operators to regularly handle these hazardous chemicals. Operators must be extensively trained in specialized procedures to ensure their safety and that of the community.
The Ultra Mag electromagnetic flow meter (or "magmeter") sets itself apart from the start, with a stainless steel body, steel flanges, and a consistent 3M fusion-bonded epoxy liner, inside and out, to eliminate wear, abrasions, and corrosion.
In the world of water and wastewater, it's not enough to simply get a measurement back on how your system is performing. The non-linear process of water treatment and distribution requires ongoing adjustment and diagnostics based on process and regular instrument analysis. In this Water Online video, Tom Siller, Senior Director for Hach's Software Business Unit, discusses Claros, a new water intelligence system that not only analyzes but looks to fill the knowledge void as we face a generational change in our treatment operator ranks.
There are a variety of costs that are easy to overlook in water treatment. But as Herman Coello, Products Manager for SIEMENS Process Instrumentation, explains in this Water Online video, accurately measuring your flow and treatment parameters can reduce them all. Much-overlooked expenses such as pumping inefficiencies and chemical overdosing can all be reduced to save operating expense.
In September of 2016, Ted Henifin took the first sip of water purified at a pilot treatment plant developed by HRSD (Hampton Roads Sanitation District). Now, the innovative water treatment program known as SWIFT — Sustainable Water Initiative for Tomorrow — is changing the lens through which communities and government officials view wastewater, drinking water, aquifer replenishment, and even fighting sea level rise.
Matt Shoemaker, North American Sales Manager for Leopold -- A Xylem Brand, talks through the features of the Type 360 Underdrain, a bolt-down system with a design that allows for longer filter runs, higher efficiency, less backwash water, and extended media life. With a flow concept that avoids dead zones and patented self-cleaning capabilities, the Type 360 is easy to own and operate. Get a close look and hear more about its unique properties in this video.
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