WASTEWATER
What To Know Before You Invest In New Headworks Equipment
Successful headworks investments depend on understanding site needs, matching technology to application, evaluating total cost of ownership, and choosing vendors that prioritize long-term performance and reliable support.
WASTEWATER CASE STUDIES AND WHITEPAPERS
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Designing For Peaks And Valleys In Seasonal Communities With MBR Technology
Wastewater flows in seasonal resorts are highly volatile. Learn how to stabilize biological treatment against sudden peak demands and low-flow off-seasons, ensuring continuous compliance and securing a high-quality water source for reuse.
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Abbottstown Retrofitted A Flow-Through System With An AquaSBR® System To Meet Stringent Effluent Requirements
The Abbottstown-Paradise Joint Sewer Authority was incorporated in 1973 and utilized a continuous flow activated sludge system with an average daily design flow of 0.21 MGD. At that time the plant was only required to reduce total suspended solids (TSS) and effuent ammonia to required levels to serve the area population of about 2000. Due to urban growth and increased storm flow runoffs, the plant was in need of an expansion and upgrade by the late 1990s.
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5 Essential Safety Devices On Aeration Blowers: What You Need To Know.
Explore some common safety devices used in aeration blowers, how they work, the potential consequences of their failure, and best practices for inspection and maintenance.
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DELUMPER® LP Crusher Improves Cocoa Butter Processing
Chef Rubber, based in Las Vegas, Nevada, is a manufacturer and distributor of specialty supplies for chefs and well-known confectioners. The products include silicones, molds, colorants and colored cocoa butter. These unique tools are widely used by artisan chefs to create edible works of art for special events, competitions and other artistic applications.
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CeraQ Ceramic Membranes Provide Robust Solution For Automotive Parts Manufacturing
An automotive parts manufacturing plant was using a polymeric membrane to remove oil from water it used to rinse parts. The rinse water contained between 6% and 7% oil and the customer wanted to remove >95% of the oil from the water so the water could be reused in the plant.
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Case Study: First Municipal-Industrial Water Reuse Project In Virginia!
Hampton Roads Sanitation District was created in 1940 to reduce pollution in the Chesapeake Bay. It currently serves a population of approximately 1.6 million with nine regional wastewater treatment plants in Hampton Roads and four smaller plants on Virginia’s Middle Peninsula. HRSD set the goal to reuse its treated wastewater for nonpotable purposes in the 1980s. An oil refinery located next to their York River Treatment Plant approached HRSD in 1996 to supply reclaimed water for the refinery’s cooling and process water. Previously, the refinery utilized increasingly expensive potable water and upgrading its own treatment facilities was too large an investment. In December 2000, HRSD signed a 20-year agreement to provide the refinery with 0.5 MGD of reclaimed water
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Reliability Delivered for Wayne County, MI CSO Facility
The Wayne County Downriver WWTF in Wyandotte, Michigan, is a CSO facility servicing 13 area communities with an average flow of 40 MGD. For wet weather and storm events, the plant is rated for 225 MGD—second only to Detroit in the state of Michigan. The plant is home to seven screens: four used during everyday flow, and an additional three accessed primarily during storm events.
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Versatility Of Thermal Mass Flow Meters
There are many well documented flow meter technologies that are essentially trying to accomplish the same thing: measure fluid flow rate. Some of the technologies that are entrenched in the market, such as flow meters that utilize differential pressure as the measurement principle, are well understood by customers. Thermal mass flow meters however, such as the Magnetrol® Thermatel® TA2, are a rapidly growing technology that is continuously evolving.
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The Most Misunderstood Fact Behind Dissolved Oxygen Sensors (It's The Pressure, Not The Concentration)
A dissolved oxygen sensor ought to be simple to understand. Whether it is membrane or optically based, it gives a signal that is proportional to the concentration of oxygen concentration in water.
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NE Alabama Water District Case Study Northeast Alabama Water District (NEAW) services 15,200 connections within 2,052 square miles, resulting in a very large distribution area.
WASTEWATER APPLICATION NOTES
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Application Bulletin: Reverse Osmosis
Osmosis is the phenomenon of lower dissolved solids in water passing through a semi-permeable membrane into higher dissolved solids water until a near equilibrium is reached
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Application Note: Preliminary Performance Study On An On-Line TOC Analyzer In Pharmaceutical Applications Total Organic Carbon (TOC) analysis is an effective technique for detecting and measuring the presence of organic contaminants in waters used throughout industrial processes, municipal water uses, and for determining residual concentrations of organic material on the surfaces of equipment used in the manufacture of active pharmaceutical ingredients. By Jeffrey Lane, Steve Skalski, and Gary Engelhart, OI Analytical
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Reduce SBR Maintenance Costs With Jet Aeration
Aeration has been a primary method for treating municipal and industrial wastewater for over a century. It is a natural way to reduce biological oxygen demand (BOD) and control odors. In the SBR process, aeration helps foster nitrification by bubbling air through the mixture of wastewater and activated sludge, encouraging the multiplication of aerobic microbes which consume nutrients and convert ammonia into nitrites and nitrates.
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Determination Of Pesticide Residues In Honey, By An Automated QuEChERS Solution
The QuEChERS (Quick-Easy-Cheap-Effective-Rugged-Safe) sample extraction method was developed for the determination of pesticide residues in agricultural commodities.
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Advances In Paper-Based Devices For Water Quality Analysis
Water quality test strips have been around for decades. They are usually constructed from a porous media, including different types of paper, and undergo a color change when dipped into water containing the analyte of interest. These test strips have seen application in swimming pools, aquariums, hot tubs, remediation sites, and other commercial/environmental areas.
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Municipal Real-Time Water Quality Monitoring
We arm municipalities with actionable data necessary to make informed decisions about water quality in their communities
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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.
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WWTP Utilizes Online Instrumentation And SCADA To Keep Operating Costs Low And Effluent Quality High
Providing the best value to wastewater customers requires a team of operators that have a deep sense of ownership and are committed to continuous improvement. Such is the case for the operating staff at one wastewater treatment plant whose progressive attitude and a philosophy of “do it right” led them to an investment in online instrumentation and SCADA for compliance, monitoring, and control.
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Waste Technologies Transform Problems To Profit
Anaerobic digestion processes that radically improve the quality of wastewater while delivering green energy extracted from biological waste streams are emerging as a profitable way for agricultural and food processing industries cope with the twin impact of drought and pollution challenges.
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Deployment Of NextStep In Reverse Osmosis Systems
Pulsafeeder has secured a significant order for its NextStep series of stepper motor-driven metering pumps, specifically for use in advanced Reverse Osmosis (RO) applications. This deployment underscores the growing demand for precision chemical dosing in high-performance water treatment systems. The order includes NextStep NS1 and NS9 models, each selected for their unique capabilities in high-pressure and low-pressure RO environments.
LATEST INSIGHTS ON WASTEWATER
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The White House has finalized plans to roll back rules under the National Environmental Policy Act (NEPA), narrowing its focus and limiting what the current administration claims are needless delays for federal approval of water, energy, and other infrastructure plans. For water and wastewater utilities, the changes could speed up permitting for critical projects, although experts warn the tradeoffs could do more harm than good.
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Traditional sewer systems, while effective, often require significant capital investment, invasive implementation measures, and complex maintenance. As a result, innovative decentralized wastewater solutions are necessary to address the needs of communities or commercial areas in need of wastewater service. One such solution is the liquid-only sewer (LOS) system.
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While many scientific and technical reports show that floods are becoming larger and more common, reports underestimate how their frequency is changing. Flood sizes get the spotlight, but governments and experts need to also consider their frequency to address implications overlooked by traditional management methods.
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In areas with storm drains, the water can quickly overwhelm the drains, causing flooding hazards. For this reason, many towns have ordinances dictating how much ground can be covered with impermeable substrates.
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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.