03
Mar
2017
Treatment

Chlorine Odors and Why Drinking Water Systems Change Disinfection Practices


23
Sep
2016
Treatment
by Water Quality & Health Council

A Public Health Anniversary: US Drinking Water Chlorination

Monday, September 26, 2016, marks the 108th anniversary of the first continuous use of chlorine to disinfect a public drinking water supply in the US.  Do you know which American city debuted chlorinated drinking water in the fall of 1908?  Can you imagine the relief of local public health officials when typhoid fever death rates... Read More »

09
Sep
2016
Treatment
by Water Quality & Health Council

Why Wastewater Treatment Matters: An Example from Haiti

One of the most important functions of water infrastructure is to prevent the contamination of water that may be used for drinking or recreation.  Limiting human exposure to wastewater helps protect human health by shielding people from the pathogens shed in feces.  Whereas diseases such as cholera and typhoid fever—transmitted through contaminated drinking water and... Read More »

15
Apr
2016
Treatment
by Fred Reiff, PE

Activated Carbon and Water Treatment

Drinking water treatment facilities employ a host of technologies to convert “raw” water from rivers, lakes and underground sources into safe, potable water.  At the treatment plant, these technologies are applied in a particular order, known as a “treatment train,” to produce water of optimum quality for the consumer.  This article focuses on one of... Read More »

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 »