24
Jul
2015
Treatment

Substances that Cause Tap Water Taste, Odor and Appearance


17
Jul
2015
Treatment
by Water Quality & Health Council

Tap Water Taste, Odor and Appearance: Why They Matter

We instinctively use our senses to evaluate tap water. The best rated water looks crystal-clear, and tastes and smells refreshing. Appearance, taste and odor are not necessarily indicative of actual water quality, however, because water contaminants may be clear, tasteless and odorless. Case in point: the small Canadian city of Chilliwack, British Columbia.... Read More »

24
Apr
2015
Treatment
by Joan B. Rose, PhD

Antibiotic Resistance and Wastewater Effluent Chlorination

Does chlorination of sewage treatment plant (STP) effluent reduce or promote antibiotic resistant microorganisms?  Recent research presented at the national meeting of the American Chemical Society provides evidence that this practice might give rise to trace levels of new, stronger antibiotics, which in turn could possibly foster antibiotic resistant microorganisms.  University of North Carolina researcher... Read More »

20
Feb
2015
Treatment
by Linda Golodner

Drinking Water and Chlorine Smell

How would you describe the taste and odor of your tap water? “A rich bouquet earthy flavors“? “Sulfurous aroma with a hint of chlorine”? Or “simply divine”? The aesthetic properties of your tap water depend upon your local natural water supply source, how your water is treated, and how it is delivered to you.  ... Read More »

06
Feb
2015
Treatment
by Joan B. Rose, PhD

UV Irradiation and Its “Sleeping Beauty Effect” on Bacteria

Until the late 1970’s, chlorine was virtually the only disinfectant used to treat drinking water, thanks to a number of desirable attributes including its effectiveness against most known pathogens, residual protection, operational reliability and cost. New challenges in the past several decades, however, including the identification of chlorine-resistant parasites Giardia and Cryptosporidium, disinfection byproducts, and... Read More »

24
Oct
2014
Treatment
by Bruce K. Bernard, PhD

Chlorinating Brainerd’s Drinking Water Can Save Lives

There’s a controversy brewing in the Mississippi River city of Brainerd, Minnesota that is about to boil over.  On October 28, the Brainerd Public Utilities Commission will debate whether or not to chlorinate the city’s drinking water on a permanent basis.  The question for many in the municipality of nearly 14,000 is whether disinfecting is worth... Read More »

28
Oct
2013
Treatment
by Fred Reiff, PE

Battling Biofilms in Aging Water Infrastructure

Microbes’ propensity to attach to both living and inanimate surfaces improves their likelihood of survival and proliferation.  They produce a sticky material that binds them together and anchors them to the surface forming dense, complex colonies of microorganisms known as biofilm.  Biofilms are very common in nature1, especially on water- and food-contact surfaces.  The interiors... Read More »

20
Sep
2013
Treatment
by Water Quality & Health Council

US Drinking Water Chlorination Turns 105!

From a list of notable events of 1908, one is likely to learn that:  Explorer Robert Peary set sail from New York Harbor on an epic journey to reach the North Pole;  a large meteorite blasted into Earth’s atmosphere over Siberia causing an explosion that leveled 800 square kilometers of forest; the first Model T... Read More »