WATER INDUSTRY FEATURES, INSIGHTS, AND ANALYSIS

  • New Technology Makes Wastewater From Oilsands Safer For Fish

    In the northeastern corner of Alberta, nestled among the expanses of forests and wetlands, lies a major freshwater dilemma that Canada is currently facing. The reuse of water for oil extraction causes tailings ponds to accumulate higher and higher concentrations of harmful contaminants. As such, the water in these tailings ponds is dangerous, and often lethal, to birds, fish, frogs, and plants.

  • CyAN App Used For Early Detection Of Harmful Algal Blooms

    Algal blooms with the potential to harm human health or aquatic ecosystems are referred to as harmful algal blooms. The most effective way of protecting public health from harmful algal blooms (HABs) is knowing ahead of time to avoid water containing cyanobacteria, which is why EPA developed the Cyanobacteria Assessment Network mobile app, an early warning indicator system for algal blooms in U.S. freshwater systems, which allows local water quality managers to proactively plan for cyanobacteria harmful algal blooms in their community.

  • Saving Our Reservoirs From Invading 'Cling-Ons'

    Like a page out of a science fiction novel, a wave of aquatic invaders is trying to discretely slip into the nation’s reservoirs and lakes.

  • Innovation And Teamwork To Address PFAS Treatment

    When you need to solve a pressing problem, one that is complicated and requires out-of-the-box thinking, you need to focus your attention, minimize distractions and barriers, and work with others to come up with innovative ideas. That’s exactly what EPA’s PFAS Innovative Treatment Team (PITT) is doing to help address PFAS.

  • Resilience In The Face Of Emerging Contaminants

    There are over 150,000 public drinking water systems in the United States and more than 80 percent of the population receives their potable drinking water from these systems. And today - according to the EPA, our water systems are faced with a growing list of challenges.

  • AWWA Lights The Way

    It’s been a helluva year, and we’re barely halfway through it.

  • A Cocktail Of Contaminants In Chesapeake Waters

    The signing of the original one-page Chesapeake Bay Agreement in 1983 was a historic moment that marked one common-sense idea: the Chesapeake Bay estuary is an interconnected watershed and working together to improve its health would benefit everyone that lives, works and recreates there. This cooperative approach helped end the oyster wars, brought about collaboration across the jurisdictions and led to advancements in science.

  • Scientists Around The World Are Already Fighting The Next Pandemic

    If a two-year-old child living in poverty in India or Bangladesh gets sick with a common bacterial infection, there is more than a 50 percent chance an antibiotic treatment will fail. Somehow the child has acquired an antibiotic resistant infection — even to drugs to which they may never have been exposed. How?

  • Supporting Innovations To Reduce Nitrogen Pollution From Septic Systems

    Septic systems are common in coastal marine communities on the East Coast of the United States. Septic systems consist of subsurface wastewater treatment structure and use a combination of natural processes and technology to treat residential sanitary waste and greywater from bathrooms, kitchen drains, and laundry. Partially cleaned wastewater is discharged from septic tanks into drain fields, where the water is further treated through biological processes as it travels through gravel, soil, and can eventually reach groundwater. Groundwater linkages with surface waters can then transport any nutrients and contaminants that are present in discharge directly into coastal waters.

  • AFFF Contamination — A Precursor To Long-Term Environmental Hazards

    Although aqueous film-forming foam (AFFF) has been used to save lives, it may be impairing the health of many more. The persistent and pervasive nature of PFAS is again the culprit.

DRINKING WATER PRODUCTS

Reverse osmosis, electrodeionization, nanofiltration, and ultrafiltration are several of the membrane systems that Aquatech International Corporation offers.

Trichloroethylene (TCE) and Tetrachloroethylene (PCE) are two of the most common solvents that contaminate groundwater supplies in the United States. Both solvents see frequent use in the extraction of fat, in the textile industry, in the production of various pharmaceutical and chemical products. TCE is also used as a degreaser from fabricated metal parts, and PCE serves as a component of aerosol dry-cleaning solvents.

Process design in water treatment is historically confined to proprietary or user-defined spreadsheets on a unit operation basis, with users manually adding results from each unit process upstream into the next operation.

Reverse Osmosis uses a semi-permeable spiral wound element to remove up to 99% of dissolved solids and bacteria from the feed water source

Desalitech ReFlex Max Reverse Osmosis systems are highly efficient, typically reducing brine waste by 50% to 75% and energy consumption by up to 35%.

Ozone treatment for water and wastewater has been utilized successfully for several decades and continues to be a viable disinfection solution for both municipal and industrial plants, worldwide.

VIEWS ON THE LATEST REGS

  • LCR Revisions: Speak Now, Or Forever Hold Your Peace

    Are you completely ready to implement the scores of changes in the U.S. EPA’s Lead and Copper Rule Revisions (LCRR), exactly as proposed? If not, act quickly, because time to register constructive feedback before the February 12th deadline is running out. Less than three weeks before the end of the comment period, the EPA’s webpage for feedback displayed only 131 public submissions regarding the proposed regulations.

  • Understanding PFAS’ Impact On Remediation Strategies

    For more than 16.5 million water-utility customers in 33 different states, contamination caused by per-and polyfluoroalkyl substances (PFAS) is a source-water issue that will not go away for a long time. What are the practical options for community water systems currently confronting this challenge? Here is an overview of several treatments and their relative successes against a wide variety of PFAS compounds.

  • Preparing To Tackle The Hydra Of LCR Revisions

    As a journalist serving the water industry — but not yet a seasoned technical veteran — I attended a recent Lead In Drinking Water Forum sponsored by AWWA NJ to learn about the challenges of complying with the proposed Lead and Copper Rule Revisions (LCRR). What I heard impressed upon me the technical, administrative, and logistical challenges of delivering safe, lead-free drinking water all the way to user taps. Here are my takeaways.

  • New RO And Other Techniques Lead To Improved Performance

    For water utilities facing various water contamination issues, there is no single catch-all treatment. That is why in this recent Water Talk interview Ronit Erlitzki and Doug Craver of AdEdge Water Technologies share treatment options that can be used alone or in combination to address diverse challenges. They introduce a new reverse osmosis (RO) treatment technique capable of raising recovery rates by 20 percent and reducing concentrate volume up to 70 percent vs. conventional RO (depending on water quality). They also explore biological processes for removing nitrate, VOC, ammonia, etc. and treating high brine concentrations in wastewater, plus techniques for resolving ammonia problems in water with high TOC concentrations.

  • Forward-Looking Technology Anticipates Compliance Needs

    When a company stakes its reputation on delivering innovative technologies, products, and services, the specter of a changing regulatory landscape is considered more an opportunity than an obstacle. In this Water Talk interview, Mirka Wilderer, CEO of De Nora Water Technologies, discusses varying topics such as pharmaceuticals and nutrients in wastewater, the synergy of the company’s new MIOX and Neptune acquisitions, and how to address the growing concern over chlorate disinfection byproducts (DBPs) in drinking water. For example, De Nora’s new ClorTec Gen III onsite hypochlorite generators generate up to 3,000 lbs./day of chlorine-based disinfectants while reducing chlorate formation and cutting operating costs by 15 percent as compared to previously available models.

MORE WATER INDUSTRY FEATURES

  • Sensitive And Reproducible SPR-Based Concentration And Ligand-Binding Analyses

    Surface plasmon resonance (SPR) assays are used across the life cycle of a biopharmaceutical, from target identification, through CQA determination, development, and on-going quality control. This article focuses on concentration assays associated with late-stage development and biotherapeutic drug chemical manufacturing and control.

  • UV-AOP: Double-Dose Wastewater, Emerging-Contaminant Treatments

    As Steve Day sees it, just as first-generation UV systems are reaching the end of their 20-year life expectancy, new developments in reliable UV water treatment are generating attention in drinking water and wastewater applications. In this Water Talk interview, the director of product management at Calgon Carbon UV Technologies outlined several such opportunities. 

  • How Buffer pH And NaCl Affect Size Exclusion Chromatography

    Using a design of experiments approach, this study describes the effect of buffer pH and NaCl concentration on proteins purified by size exclusion chromatography.

  • A Summary Of FDA Guidance On COVID-19: Patient Safety And Adapting Processes

    Recently, the FDA released some guidance to help study teams make decisions, as well as handle the documentation regarding related changes to their operations and protocol. Here is a quick, itemized rundown of their guidance for ongoing trials (focused on Discussion Section A of the guidance), each followed by some commentary to provide additional food for thought.

  • Find More Insight In Your Deluge Of Water Data

    With the proliferation of new sensors and Industrial Internet of Things (IIoT) initiatives now feeding SCADA systems, water industry managers lament how they are drowning in a sea of data yet starving for insights that really matter. With concepts like data democratization starting to bear fruit, advanced analytical capabilities are creating new opportunities for water insights without requiring a degree in computer science.

  • Converting From ELISA To Biacore SPR Assays

    This article provides general guidance on how to convert an existing ELISA assay to a Biacore SPR-assay and, by doing so, shows how you can get results in less than half the time compared with ELISA.

  • Defending Against Saltwater Intrusion

    Are “ghost forests” a sign of things to come? Rising sea levels and superstorm tidal surges are already impacting coastal areas, with rising salinity levels affecting some drinking water sources. Coastal water utilities are not the only ones that have to worry about salinity, however, as high concentrations of winter storm road treatments, gas drilling, and mining can also generate elevated salinity levels in surface water sources.

  • Using Preamplification To Maximize qPCR Data From Limited Samples

    Preamplification is frequently treated as a necessary evil as many fear that it may introduce bias into their experiments, leading to the generation of inaccurate results. Preamplification is also sometimes misunderstood as being a magic bullet to boost qPCR sensitivity. This article addresses these issues as well as others, so that you can be confident when using preamplification in your qPCR experiments.

  • Direct Burial Meters Offer Significant Savings

    Most pipelines are below grade, so vaults have traditionally been installed to provide access to any place where a meter and valve are necessary. Vault pits tend to be large, and the installation is by far the biggest expense of a metering project. The good news is that direct burial metering options can greatly simplify the installation requirements, significantly lowering the costs, while also boosting safety.

  • Identifying Heterogeneity Within Rare Cell Populations By Pairing Single-Cell RNA-Seq With Cell Sorting

    Studying biology at a single-cell level can provide crucial insights into how individual cells contribute to human biology and disease. Here we demonstrate that the resolution of single-cell RNA sequencing (RNA-Seq) can be greatly enhanced by adding a cell sorting step prior to RNA-Seq analysis.

  • MSP Marketing: Move Beyond Word of Mouth

    We’re talking marketing this spring, and there’s a really good reason for that. Business as usual is now business unusual, and when we come out of the pandemic and all the economic and social fallout, you still want to be in business. In fact, now you can see the value of not just scraping by every month – you need to be built to last. The only way to make sure you’re built to last is to master marketing. Deep down you know this – no matter how good your service is, if nobody knows about it, you don’t make money. So let’s talk first about word of mouth, because for some MSPs, it’s the only tool in their marketing toolbox. But even for the best MSPs, it’s one of the most important.

  • Are Your Pumps Running As Efficiently As Practical?

    In water and wastewater operations, optimizing energy use plays a huge role in cost efficiency, but how can you know if pumping equipment and other motors are running as efficiently as possible? Analytics systems that interpret performance from a variety of data points — pump curves, run time, flow rates, vibration, temperature, energy consumption, etc. — can quantify pump operation to keep performance efficiency on an upward track.

  • When Your Weakness Becomes Your Strength

    Significant water loss leads to new technologies putting the Eastern Band of Cherokee Indians on the cutting edge of service.

  • Iron And Manganese Removal Without Chlorine

    Iron or manganese removal commonly involves injecting chlorine or potassium permanganate, followed by filtration with sand or coated greensand media.  Chlorine can affect the taste and odor of the water as well as involve high levels of maintenance and costs.

  • Fine Tune Your Lab Testing Accuracy With Compliant Proficiency Testing (PT)

    Proficiency Testing (PT) is the name used by the International Standards Organization for a procedure also known as “inter-laboratory study” or “external quality assessment” or “ring test”. Proficiency testing, in simple terms, comprises a sample sent to a group of laboratories for measurement. The labs know what might be in the sample, but they don’t know exactly what is there or the concentration. Their results are compared with the known or true value and the lab is assigned a “Z” score to show how closely their result came to the target.

  • LV Scale-Up Workflow In Single-Use Bioreactors For GMP Compliance

    Cost-effective manufacturing of lentiviral vectors (LV) at commercial scales has proven difficult and remains a pressing issue for the marketing of therapies that depend on their application.

  • A Small-Scale Model To Increase Yield In Cell Culture Perfusion Of mAb At Large Scale

    As process intensification is adopted into large scale manufacturing, the responsibility on scale-down models to accurately represent the expanded operating space quickly follows. Perfusion continues to be one such operating mode which lends itself to adding benefit at the manufacturing scale while adding complexity to the small-scale approach. The purpose of the described study was to develop a reliable small-scale model of our perfusion process in the ReadyToProcess WAVE 25 Rocker bioreactor and WAVE Cellbag 50 L.

  • 5 Considerations When Changing From Metal Detection To X-Ray Inspection

    Surprise objects in food, and the anger and fear they create, can turn into viral news faster than you can say “recall!” Here are five considerations when upgrading from metal detection to X-Ray inspection.