15
Apr
2016
Treatment

Activated Carbon and Water Treatment


18
Mar
2016
Treatment
by Water Quality & Health Council

Marking World Water Day with an Interview with Drinking Water Treatment Professionals

Louisville Water treatment plant on the Ohio River, Louisville, Kentucky [photo courtesy of Louisville Water] Every year on March 22, the United Nations observes World Water Day with a unique theme.  Intrigued with this year’s “Water and Jobs” theme, we conducted a telephone interview with four water treatment professionals employed by the Louisville Water Company. ... Read More »

19
Feb
2016
Treatment
by Stephen A. Hubbs, PE

Facts about Chloramine Drinking Water Treatment

One in five Americans drink water disinfected with chloramine, a technology that has been in use since the early decades of the 20th century.  Chloramine is produced at water treatment plants by combining chlorine and ammonia. Cities that treat water with chloramine include Denver (since 1918), Portland (since 1929) and Boston (since the 1930s), among... Read More »

29
Jan
2016
Treatment
by Chris Wiant, MPH, PhD

Keeping the Lead out of Drinking Water

The recent lead in drinking water crisis in Flint, Michigan raises questions about the role of water distribution infrastructure in altering the quality of water delivered to consumers.  In Flint, lead was leached from the water distribution system after the city changed from the Detroit Water System, which takes water from Lake Huron, to the... Read More »

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 »