WASTEWATER

Meeting modern water reuse goals requires moving past legacy disinfection. Advances in UV technology now provide chemical-free, reliable pathogen inactivation for even high-flow, open-channel tertiary treatment.
WASTEWATER CASE STUDIES AND WHITEPAPERS
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Insta-Valve 250 Helps Charlotte Gain Control For Unidirectional Flushing Program
Hydra-Stop’s insertion valve provides targeted control to allow the city to bring down the levels of iron and other particulates in their water distribution system.
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Plastic Flow Meters Reduce Weight, Space, Corrosion — Not Accuracy
There are a variety of reasons for wanting accurate flow metering — e.g., billing purposes, precise proportioning of chemical injections, and other process flow decisions. That is why highly accurate mag meters are so popular in many applications. Now, new lightweight, corrosion-resistant mag meters provide the same advantages as plastic piping for harsh environments and flows that cover all the bases…and acids.
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Standardizing On-Site Hypochlorite Generation Disinfection Technology In Water And Wastewater Treatment Plants Increases Safety And Eases Operations
In late 2005, the City of Newberg, Oregon, decided to upgrade their water treatment plant disinfection process from gas chlorine to on-site hypochlorite generation (OSHG) in an effort to simplify operations and increase operator safety. The plant produced an average of 2.5 million gallons per day (MGD), with a peak capacity of 5 MGD.
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TITAN MBR™ Microfiltration Provides Private Development Site With Water Reuse Capabilities
When developers of a condominium complex sourced wastewater treatment systems, it did so with two primary requirements: efficient land utilization and high effluent quality to meet stringent guidelines. State regulators advised the developers to discuss combining its wastewater system with the owner’s association of an adjacent housing development, whose existing wastewater treatment system was aging and required augmentation.
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Mitigating Environmental Impact Of Gold Mine's Wastewater Through Ozone Oxidation And Aquifer Re-injection
Installing and operating an ozone oxidation system for wastewater remediation at a gold mine located in a remote region of Alaska is full of challenges.
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PWSA Advances By Upgrading To ROVVER X SAT II Lateral Launch Crawlers
The ROVVER X SAT II lateral launch crawler allows Pittsburgh Water & Sewer Authority (PWSA) to traverse steep pipe inclines with ease, which previously posed challenges for the team.
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IFAS System Doubles Ammonia Removal Capacity
In August of 2007, the Michigan Department of Environmental Quality issued seasonal ammonia discharge limits for the Coldwater Wastewater Treatment Plant (WWTP), which included a daily maximum ammonia concentration of 2.0 mg/L between the months of May and November.
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The Tip Of The Fatberg: How FOG Affects Our Sewer System
Fats, oils, and grease, commonly referred to as FOG, are one of the most prevalent contributors to sanitary sewer blockages and overflows. In this blog, we will explore the impact of FOG and what can be done to control it.
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A More Cost-Effective Measurement Solution For Open-Channel Flow
Until recently, radar level measurement devices have been cost-prohibitive for most municipalities. Newer advancements, however, have brought the cost down significantly, so it is now feasible for wastewater plant managers to consider adopting the technology for open-channel applications.
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How To Remove FOG Deposits And Prevent Sewer Overflow
Fats, oils, and grease (FOG) deposits present a problem for the wastewater industry as they create sewer lines blockages that lead to overflow. Digester systems can successfully remove these deposits with the latest environmentally friendly technology by breaking them down into microparticulates. This paper offers a technical review of the solutions available for applications such as commercial and residential lift stations, grease traps, and wet wells.
WASTEWATER APPLICATION NOTES
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Repair Or Rethink
The Moundsville Wastewater Treatment Plant in West Virginia chooses not to fix a broken blower unit, but rather to correct an outdated approach. The result is a savings of $50-60K a year in energy costs.
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Best Practices In Moist And Wet Gas Flow
The Wet Gas MASSter sensor is for use in applications that have a high level of moisture or condensation present in the gas flow stream that cannot otherwise be removed.
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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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Protecting Pumps From Dead Head Conditions
The C445 motor management relay offers the most configurable protection options in the industry, with features specifically designed to protect critical pumps from costly damages due to dead-head and other underloaded or starved pump conditions.
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Application Note: Testing Nitrite In Surface Water And Wastewater The Thermo Scientific Orion AQUAfast® AQ3700 Colorimeter comes programmed with methods for testing nutrients. By Thermo Fisher Scientific
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Filter Installations Remove Solids From FGD Scrubber Effluent
Power plants and refineries around the world must manage and treat complex effluent waste streams from the Flue Gas Desulfurization (FGD) process. Flue gas is generated by the combustion process of fossil and fossil-derived fuels, such as coal, oils, and natural gas in power plants. Petrochemical refineries may generate flue gas from a number of different processes, including Catalytic Cracking, Steam Methane Reforming, and Heaters or Furnaces.
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NEOSEP® Membrane Bioreactor System Simplifies 'Fundamental Necessities' Of MBR
The NEOSEP® MBR system features Kruger’s uniquely designed K-120C and K-240C flat sheet membrane modules. The modules offer several innovative design features that enhance ease of installation, operation and maintenance. This includes an integrated central lifting eye, offering an incredibly well balanced module that makes installation and retrieval a simple and stress-free process.
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FLEX-TEND® Flexible Expansion Joints, Features And Specifications
FLEX-TEND® flexible expansion joints are designed to protect structures and pipelines from differential movement whether this movement is earthquake induced or the gradual motion of soil subsidence. This bulletin offers a concise listing and discussion of the important features and materials of the double and single ball assemblies.
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Dosing Of Sodium Hypochlorite Solution For Drinking Water Disinfection
A water purveyor was in urgent need of a chemically resistant flow instrumentation with a long life of service that allowed reliable and long-term stable dosing of the sodium hypochlorite solution.
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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
LATEST INSIGHTS ON WASTEWATER
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By classifying PVDF as a PFAS “forever chemical” and including it under the proposed restriction, the EU has introduced the prospect of a multi-billion-dollar technology shift. While the outcome will depend on the final derogation periods granted, the proposal creates a defined regulatory horizon for PVDF membranes and forces the global water industry to evaluate alternatives.
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There are three potential options to contain floods with tunnels to direct excess water out of Houston to the coast. As researchers who study disaster resilience, we bring complementary expertise to analyzing this complex discussion. Here are what we see as the key factors for the city to consider.
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No one knows more than water utilities how changing climate conditions are impacting the challenges and costs of delivering clean drinking water to communities they serve. In a recent episode of The Water Online Show, climate experts Jesse M. Keenan from Tulane University and Edgar Westerhof of Arcadis discussed the issue of resiliency for drinking water and wastewater systems.
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Wastewater plants are made up of a series of interconnected processes, each one dependent on accurate data. Turbine flow meters can be installed at several stages to provide operators with real-time, trustworthy flow information.
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"Potential" is in the name. Here's what wastewater managers should know about both the benefits and challenges of ORP as an agent of process control.
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Researchers warn that California and other states affected by megadroughts — periods of drought lasting 20+ years — will have to accept this as the new normal. That means rethinking the water cycle and finding new, more sustainable water sources.