WASTEWATER
Key West Resort Utilities Maximizes Reuse And Nutrient Recovery
Water scarcity poses unique challenges to KW Resort Utilities Corp. (KWRU), the utility firm that provides wastewater management, wastewater recovery, and wastewater treatment in the region. KWRU began operation in the late 1960s and has worked hard over the decades to keep up with wastewater needs as population and tourism have boomed, spurred by land reclamation and development.
WASTEWATER CASE STUDIES AND WHITEPAPERS
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HST Turbocompressor Survives Category 4 Hurricane
Victoria, Texas, is a small South Texas town of approx. 65’000 people just 30 miles inland from the Gulf of Mexico. This area is considered as humid subtropical, and the temperatures regularly exceed 100°F for the months of June through August. A record high temperature of 111°F was recorded in September 2000 and a record low of 9°F in December 1989. This location displays one of the most extreme temperature differentials in the United States. The HST high-speed blower was used in the new plant design which replaced an older two-stage trickling filter design in the Victoria WWTP.
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A Small Town With Big Challenges
Aqua America water treatment plant in Tiffin, Ohio, was built in the 1920s and is situated on the Sandusky River. The plant processes 3.4 million gallons per day and was facing challenges of producing high-quality drinking water. A full measure of seasonal variety, combined with the runoff from a thriving agricultural environment, caused the small-town water facility to constantly encounter adverse conditions. In an effort to remain compliant, Aqua America enhanced coagulation, but this increased sedimentation rates and exacerbated sludge blanket depths.
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Selecting The Optimal Blower For The Water Industry
In this white paper, we will drill down into which technology has particularly proven itself in terms of energy efficiency in the water industry.
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A Better Way: An Application For Risk Characterization of HABs On The Ohio River
When you think of water, you might imagine deep blue ocean waves crashing against a shoreline or perhaps the still calm of a forested lake, but on an August morning in the summer of 2015, the lockmaster at the Pike Island Lock and Dam saw something much different. That day, EPA’s regional office in Wheeling, WV, received a concerned phone call from the Ohio River Valley Water Sanitation Commission (ORSANCO) notifying them of what was described as “antifreeze-green colored paint” flowing down the Ohio River. But this was no paint spill. Rather, Microcystis, a naturally occurring species of cyanobacteria, or blue-green algae, known to produce toxins harmful to animals and humans, was quickly taking over one of the most influential rivers in the continental U.S.
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How pH Standards Impact The Accuracy Of Water Quality Measurements
When it comes to pH measurement in water and wastewater treatment, there are two focal points for the word ‘standard’ — one is a compliance-related state or federal water quality specification; the other is a specific fluid used as a calibration reference point to ensure pH instrumentation accuracy. Here is why both are important and how they affect the best pH measurement outcomes in both areas.
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Clogging Problem Solved; Maintenance Cost Reduced; 15 Percent Less Power Consumption Delivered
A WWTP facility in Indiana serves a six-square-mile area, and has historically experienced pronounced peak flows caused by nearly one-fourth of its collection system consisting of combined storm water and sanitary sewer lines.
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Achieving Better Balance In The Water-Energy-Climate Nexus
Trying to balance urban population growth against water scarcity, energy consumption, and greenhouse gases (GHGs) can feel like being stuck between a rock and a hard place. Fortunately, a recent report quantifying that delicate balance offers new perspective on solutions for water professionals.
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The Often Overlooked Benefits And Versatility Of GRO And GR Systems For Existing Plants
Schreiber has designed and installed several dual GR plants in which one unit serves as the aeration/clarification unit and other unit serves as the digester/thickener/clarification unit. At the Mirasol, MO plant, the GR digester was sized to allow digestion/clarification in the initial phase, thus satisfying the clarifier duality required in many states, and will be converted to a digester/thickener in a future plant expansion.
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The Fine Points Of Headworks Screening (Part 2 Of 3)
Protecting wastewater treatment facilities requires operators to think strategically about their unique challenges and identify the best solution for their specific requirements. Specifying the appropriate headworks system for the plant’s needs is arguably one of the most important design decisions a public works engineer will make.
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Has The Ideal Biocarrier Finally Been Developed?
In order to improve the efficiency of biofilm technologies, a high-performance biocarrier has been developed, based on requests for ideal carrier characteristics.
WASTEWATER APPLICATION NOTES
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Recording & Control: Online Data Recording And Control In Anaerobic Digestion Processes
Solids present in wastewater need to be safely and comprehensively treated and removed. This means not only removing toxic compounds, including both organic and inorganic materials such as heavy metals, but also eliminating any harmful bacteria present in the solids.
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Waterworks Joints 101
There are many different joints that can be found on waterworks pipeline components. This paper focuses on the three most common joints.
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Sewage Pump Station Level Application
The most common level application in the water and waste water industry is the infamous wet well. With its line-of-sight measurement technology, rugged sensor, narrow laser beam and virtually nonexistent maintenance requirements or on-site calibration, ABB’s LLT100 laser level transmitter answers most concerns related to wet well level measurements and makes it easy to calculate what could amount to a substantial return on investment.
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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.
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Environmental Applications Of The Agilent 1290 Infinity UHPLC: The Evolution Of Chromatography This application note presents examples of the use of UHPLC (ultrahigh performance liquid chromatography) for environmental applications using the new Agilent 1290 Infinity LC. By E. Michael Thurman and Imma Ferrer Center for Environmental Mass Spectrometry Department of Environmental Engineering University of Colorado Boulder, CO, USA
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Background And Summary Of Tests For The 2000PV Restraint
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.
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UV Technology Offers Solution For Emerging Water Crisis
Many are turning to UV as an effective barrier to enable the reuse of wastewater, for indirect reuse, and aquifer recharge.
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Managing Storm And Surface Water With ForeSITE UL Monitoring System
As flooding increases along coastal and river-adjacent communities, the need for low-cost, reliable monitoring and warning systems has become a critical factor for managing these issues in real time, without requiring major infrastructure overhauls.
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Process Monitoring And Control For Increased Productivity And Efficiency
The Littleton/Englewood wastewater treatment plant, Colorado, put in place processes to effectively monitor the levels of ammonia in their wastewater treatment.
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What Are You Doing To My Pipe: Can PVC Pipe Be Loaded?
The argument has been used that PVC pipe is delicate and can’t be subjected to any kind of loading. In EBAA's years of testing we have found that is not the case at all. PVC can take an extreme amount of strain.
LATEST INSIGHTS ON WASTEWATER
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Technology like advanced process control systems can streamline operations, create opportunities to lower costs and emissions, and ensure effluent quality meets the highest standards. Research also indicates that implementing an appropriate control strategy can help reduce N2O emissions.
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Strategic flow monitoring helps wastewater utilities curb overflows, cut costs, and safeguard public health by turning accurate data into proactive action.
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When seeking bids for a fair comparison, it’s important to evaluate the total cost of ownership.
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Researchers have developed polyimide-based membranes for membrane distillation (MD) that overcome three persistent issues in membranes for water treatment and gas separations: the need for pore-forming chemicals that prevent recycling, performance degradation due to pore wetting and fouling, and the inherent trade-off between high water flux and selectivity.
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As technology improves and becomes more accessible, outdated municipal wastewater systems are fast beginning to show their age. Today, water pumps come in a variety of designs that enable uses that previous generations could only have dreamed of.
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Accurate storm surge predictions are critical for giving coastal residents time to evacuate and giving emergency responders time to prepare. But storm surge forecasts at high resolution can be slow.