It was in late July when a governor-appointed panel approved what some Floridians consider to be “controversial criteria” for water quality.
In a testy back-and-forth, environmental groups in Florida are squaring off with a local power plant for what they claim are violations of the Clean Water Act.
The Republican presidential nominee has a track record on sewage issues, although it is almost never discussed in the campaign.
After a disastrous mine waste spill that took place last year, New Mexico is suing the state of Colorado stating that it should be held responsible for the massive contamination.
Cities across the world are realizing that sewage treatment can be crucial to attracting new businesses and creating jobs in their communities.
Iowa policymakers are having a heated debate over how much municipalities should spend to prevent and clean up nutrient pollution.
How do energy savings performance contracts work? An energy services company (ESCO) breaks down the process and shares recent results from a participating wastewater treatment plant (WWTP).
Unlike dead-head filtration characterized by a single flow in and out, both reverse osmosis (RO) and nanofiltration (NF) technologies are unique in that they produce two effluent streams, a lower TDS (total dissolved solids) permeate and a higher TDS concentrate.
This is the third installment of a three-part series exploring headworks screening problems and solutions. In this installment we will explore solids removal options for headworks facilities.
More than 6,800 cubic yards of structural concrete are being used in the construction of a new Trickling Filter and Trickling Filter Pump Station in Bismarck, North Dakota. These structures are being built well below the area’s water table, and the more than 6,800 cubic yards of concrete will protect them against the effects of Mother Nature.
This article is in support of the Imagine a Day Without Water campaign — a national online movement to raise awareness about the value of water and water infrastructure.
When emergencies inevitably arise, municipal operators need to be prepared to respond immediately to restore services in order to provide safe, reliable water to their customers. Take for example the City of Cisco, Texas.
Until 2012, the Kaufman, TX, Wastewater Treatment Plant (WWTP) operated two separate aeration basins with mechanical surface aerators. As the plant’s equipment aged and required more frequent and expensive repairs and maintenance, the City of Kaufman followed its engineering firm’s recommendation to install a new, more efficient, fine bubble-diffused air system rather than simply replacing its old mixers with in-kind equipment.
Clearas Water Recovery's patented treatment platform, Advanced Biological Nutrient Recovery (ABNR) technology, is highly modular and scalable, providing a sustainable approach to cleaning water. The Clearas system consists of three core phases: the blend phase, the nutrients recovery phase and the separation phase. For optimal results, Clearas has partnered with Endress+Hauser for dependable products and reliable technical expertise.
The following methods with the corresponding method numbers are programmed into the photometer. The measurements can be made without any further adjustments. In addition, several applications (AppNotes) are pre-programmed.
As interest in biogas grows, more attention is being paid to measuring biogas flow, which has long been a problem area in process measuring technology.
Veolia has developed ShaleFlow™, a cost-effective mobile solution for reuse of flowback and produced water from hydraulic fracturing operations. This compact, mobile system utilizes proven technologies designed to enable reuse with the flexibility to be moved as the field is developed.
Designed to be the most flexible, easy to use, and easy to see multi-parameter controller on the market, the 2250 and 2250 TX excels in measuring Conductivity, pH, ORP or Flow.
With more than 25 years of ion exchange treatment process experience, De Nora Water Technologies has designed the SORB 07™ nitrate removal system to treat nitrate (NO3) contamination in ground water supplies.
Ecosorb® 5000S is a broad spectrum odor neutralizer which reduces emissions for specific gases including hydrogen sulfide, mercaptans, amines and thioethers. Ecosorb 5000S can be diluted with water or used neat depending on application and delivery equipment to remove odorous compounds including acids and bases.
Trusted measurement for high range turbidity applications; simplified.
The new TL23 Series laboratory turbidimeters blend trusted technology and improved features to simplify testing in the most demanding industrial and wastewater applications.
Settings for the customer’s selection of sensors are factory-preloaded. These are uploaded to the base unit at installation, greatly simplifying set-up and assuring safety through the use of appropriate alarm limits based on Xylem’s decades of experience.
The JCS Industries Model 4200EC Gas Vacuum Chemical Feeder mixes and feeds gaseous chemicals commonly used for water and wastewater disinfection accurately, reliably and safely. The system is comprised of a vacuum injector to safely introduce the gas into the feed-water stream, a reversing servo motor coupled with a V-notch valve to regulate the chemical flow rate, and a control module for complete electronic control and communications.
The SORB 09 system treats a wide range of water qualities at capacities ranging from 50 to 3,000 gpm. The SORB 09 system features a small footprint and enhanced operation as compared to conventional activated alumina adsorption systems.
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.
