29
Jan
2016
Treatment

Keeping the Lead out of Drinking Water


29
Oct
2015
Treatment
by Joan B. Rose, PhD

Do Point-of-Use Water Quality Interventions Work?

In many regions of the developing world, good drinking water quality is far from a “given.” The fact is that water contaminated with fecal matter causes widespread diarrheal illness and death, disproportionally affecting children under the age of five.  Recently, a group of researchers from The Cochrane Collaboration assessed several water treatment interventions taken at the household point of use for their effectiveness in improving water quality and preventing diarrhea.... Read More »

25
Sep
2015
Treatment
by Joan B. Rose, PhD

Sharing the Gift of Water Treatment in a Packet

How is drinking water purified in regions of the globe where treatment facilities are unavailable?  The answer can lie in a tiny packet of powdered “point-of-use” water treatment chemicals.  For example, the Proctor & Gamble [P&G]Purifier of WaterTM is a mini-treatment system in a packet that helps extend the advantages of water treatment to people... Read More »

24
Jul
2015
Treatment
by Water Quality & Health Council

Substances that Cause Tap Water Taste, Odor and Appearance

A drink of tap water is a complex sensory experience that reflects a wide range of factors, including: the natural environment of the source water, including whether the source water hails from above (lake or river) or below (ground water) the Earth’s surface; water treatment processes; the household plumbing system; and the consumer’s sensitivity to taste and odor. This week we examine some of the common substances in water and the scenarios that may impart a color, taste or odor to tap water.... Read More »

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 »