It is intuitive to think that regulating harmful contaminants has a positive impact on water quality.
The Detroit Water and Sewerage Department director, Gary Brown, would like certain residents to start helping pay for the city's $125 million annual costs for wastewater treatment.
The national environmental group Earthjustice is filing a lawsuit against the U.S. EPA on behalf of several river organizations in Washington, DC.
Last year, three million gallons of acid mine water from the Gold King Mine spill near Silverton, CO, entered the Animas and San Juan rivers.
The Iowa Soybean Association (ISA) pledged $150,000 in support of three state agricultural counties — Buena Vista, Calhoun, and Sac — named in a “controversial lawsuit brought by the Des Moines Water Works.”
It was in late July when a governor-appointed panel approved what some Floridians consider to be “controversial criteria” for water quality.
Wastewater treatment plants require efficient process control to make sure that effluent is treated cost-effectively while also meeting environmental regulations. Partnering with Siemens provides the reassurance of best-in-class products, and the precision, integration and reliability in process automation to help you deliver optimum efficiency and productivity.
Clarifiers are an important component of the wastewater treatment process. However, between corrosion, maintenance, and changes in flow, it can be difficult to keep a clarifier operating at peak performance. In addition, changes in effluent regulations may require upgrades to meet new, more stringent requirements.
To protect the sensitive waters of the Neuse River Basin, the State of North Carolina formally adopted a nutrient management strategy in 1997 which established Total Maximum Daily Loads for all point source contributors of Total Nitrogen (TN) to the Neuse River. By upgrading its oxidation ditches, this Eastern NC plant saw a reduction of 76% TN compared to its average discharge from the past 6 years.
Carollo Engineers, an environmental engineering firm that specializes solely on the planning, design, and construction of water and wastewater facilities has identified five major trends in the industry.
Just like a poorly poured pint of beer can wreak havoc on your coffee table, excessive foam formation in aeration tanks can create operational challenges for both municipal and industrial treatment plant operators. In municipal plants, foam formation is common during secondary treatment startup, as the young microbiology is unable to breakdown surfactants associated with soap, shampoo, etc.
It makes sense that water regulations are written in line with the available means to detect contaminants. The same logic would suggest that as newer, more accurate diagnostic technologies become available, the list of MCLs and the depth of water regulations will continue to evolve.
The era of dumping waste into rivers is almost over. So says Jon McClean, Chief Technical Officer with ETS-UV, an Evoqua brand. McClean who has been working in UV water treatment for over 30 years recently sat down with Water Online Radio to discuss the growth of water reuse and specifically UV’s role in water reclamation.
At WEFTEC 2016, Evoqua Water Technologies explored six core challenges faced by wastewater treatment plants -- energy reduction, nutrient removal, odor and corrosion control, aging plant equipment, water reuse and disinfection. In this Water Online Radio interview, Paul Rice, Municipal Marketing Director with Evoqua Water Technologies, discusses energy reduction and nutrient removal in more detail.
There’s a lot of data floating around the water industry these days. SCADA, flow statistics, online monitoring, DO measurements, air flows, LIMS system data in the Lab, and CMMS data from maintenance software to name but a few.
The City of Durham, NC, completed a comprehensive wastewater master plan that evaluated different treatment techniques for meeting strict total nitrogen (TN) limits at the South Durham Water Reclamation Facility (SDWRF).
As recently as 1995, the Charles River was nearly failing the U.S. EPA’s annual water quality assessment. Since then, the river has seen a dramatic improvement thanks to several pointed initiatives.
Late last month, a panel of regulators appointed by Governor Rick Scott narrowly approved the first changes to Florida’s surface-water quality standards since 1992. Marked with adamant support on one side and passionate protest on the other, the sweeping amendment has left questions about how clean Florida’s water will be.
The U.S. EPA’s recently released Preliminary 2016 Effluent Guidelines Program Plan indicates the industries and pollutants that the agency has its eyes on for potential future regulation.
A new project from the Water Research Foundation will look into how utilities can encourage green infrastructure and low-impact development on private property.
Two tools leverage computing power for engineering design, opening up a digital world of possibility for wastewater plants.
The U.S. Department of Commerce’s (DOC) International Trade Administration is planning a July business development mission to Singapore, Vietnam, and the Philippines to introduce American technology firms to the countries’ burgeoning water markets.
Living near water requires that we plan for situations when we have too much of it. Throughout history we have dealt with flooding when weather events exceed “normal” parameters.
Sustainable approaches to stormwater management are taking hold around the world. One example is the European Union Horizon 2020 funding for Nature-based solutions for climate and water resilience in cities (urban re-naturing) – launched today.
Be honest – how many times would you answer yes to the following questions?
A common thread of recent stormwater conferences and industry seminars has been the failure of designed WSUD measures, whether they are detention systems, wetlands and most commonly bioretention systems.
XP Solutions in Brisbane recently presented a webinar on the design of detention basins. In response to the session, the support team were asked a number of questions on some of the other options that are available to engineers and designers of these systems as well as specific requirements that may need to be addressed. The following items apply within the Australian context but are applicable across the world.
You may have heard about the tragedy in Flint, Michigan — but to keep everyone on the same page the water in that system has turned toxic.
Many of you will know Portland, Oregon as the “City of Roses” or one of bridges and micro-breweries but it was none of these things that got me excited about my first trip to Portland earlier this month.
Supervisory control and data acquisition (SCADA) systems are the digital pulse of water and wastewater treatment plants. Serving as the information hub, SCADA makes the most of the day’s cutting-edge technology and in turn uses it to make the most of the plant’s operations. But how to keep up with a system that evolves as quickly as the greatest minds in the field will allow?
Accurate partially-filled pipe measurement is essential when dealing with variable stormwater flows or over-sized community systems built for future growth. In Europe, new stormwater regulations requiring treatment before release are driving a change in measurement that will likely be seen in the U.S. in the not-too-distant future.
Each year, in an effort to better understand and serve its members, the Water and Wastewater Equipment Manufacturers Association (WWEMA) asks them, “What keeps you up at night?” For the past several years, the top answer has been the same: funding.
The city of El Paso, TX, lies on the tip of the Chihuahuan desert, and it is not uncommon for a year’s worth of rain to occur in a matter of days during the summer.
An industry expert addresses technology and compliance concerns regarding the U.S. EPA’s Long Term 2 Enhanced Surface Water Treatment Rule (LT2).
A metallically-pure, stress-free surface provides optimum corrosion protection for wastewater treatment plants. Here’s how to get there.
More than 45% of installed water meters in North America are equipped with automated meter reading technology, according to a recent IHS Technology 2014 report (“Water Meters Report – 2014”).
If wastewater treatment plant operators have nightmares, it’s a good bet that many of them have to do with sewage overflows. Few events are as catastrophic for a wastewater facility as a surge of water it can’t process being churned out into the public sphere, in violation of environmental regulations, and to the detriment of public health.
The user population of a Central Texas resort system does not reach its peak until summer and the resultant levels of peak and low usage vary widely. This fluctuation impacts levels of disinfectant residual and, consequently, water quality — especially at the end of the line. Manual flushing of the utility's hydrants to maintain water quality has resulted in excessive time and labor as workers must access the outlying areas.
Regardless of how the many wastewater treatment plants across North America and the world are configured, their missions are the same. At the core of their operations, these facilities are charged with maximizing the efficiency of managing their wastewater and water resources.
Managed by the private, non-profit South Jasper Water Supply, Buna, Texas’ water system contains 91 miles of un-looped distribution pipe with historical water losses of up to 30%. A small operations team is responsible for monitoring two water plants, reading 700 meters, repairing leaks, and flushing water to control the water quality. In an effort to spend less time manually flushing hydrants and focus more time on repairing leaks to reduce non-revenue water loss, South Jasper Water Supply purchased and installed two (2) Hydro-Guard® HG-1 Basic/S Flushing Systems.