Chemical Engineering November 2016 - 5

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Editors Page
Focusing on water
W
ater is both a life-giving source and a potentially devastating
force. Citing this range of water's power during
the opening session of Weftec (New Orleans; September
24-28; www.weftec.org), New Orleans Mayor Mitch
Landrieu described how the city has triumphed over the devastation
that occurred eleven years ago when Hurricane Katrina hit. People
now have a great appreciation for water, he said, where it may have at
one time been taken for granted.
We are often reminded of the power of water - both too much and
too little of it - such as with the recent force of Hurricane Matthew,
and the droughts experienced in numerous places around the world.
At Weftec's opening session, the many roles that water plays in our
daily lives were depicted in a short video, which summed up water's
importance with the potent message " without clean water, life stops. "
For those of us who live in parts of the world where we haven't had to
think much about our water supply, recent news like the water quality issues
in Flint, Mich., have made us realize that having clean, fresh water is
something that we cannot take for granted, and have to work to achieve.
A quantified approach to conservation
Water scarcity is a worldwide issue. In his keynote address at Weftec,
Joe Whitworth said that with the world's growing population, water
scarcity is a growing concern, and that " very few people see it coming. "
Whitworth is the president of the Freshwater Trust (Portland, Ore.;
www.thefreshwatertrust.com), a not-for-profit organization that focuses
on outcome-based conservation to protect freshwater resources.
Referencing his book, " Quantified: Redefining Conservation for the
Next Economy, " Whitworth gave examples of simple things that can be
done, and quantified, to make a difference in water sustainability. One
example involved a situation in Oregon where water effluents warmed
the waterways they were being returned to, making them too hot for
the salmon to exist. Cooling the water was accomplished by planting
trees to shade the watershed, which was a much less expensive alternative
than other solutions. Whitworth maintains that there is much
that we can and should do to address water scarcity, and not just because
it is the " right thing to do, " but because it is the " smart thing to
do. " He says that the best investments are actually the most sustainable
investments. To the Weftec audience, Whitworth emphasized that
engineers can make a really big difference in worldwide water issues.
Advances in technology
The crowded aisles of Weftec's exhibit hall held examples of engineers
and others working to improve wastewater treatment and related issues.
As an example, results of a year-long demonstration of the Zeelung
MABR* technology at the Metropolitan Water Reclamation District of
Greater Chicago reportedly showed the potential for intensified nutrient
removal as well as energy reduction. And scientists are working on innovative
technologies, such as the plasma oxidation
technology described on p. 7 in this issue.
The importance of clean, fresh water in our lives
is something that many of us do not often focus on,
until it is no longer available. It was inspiring to see
the technologies presented at Weftec, and to meet
some of the people who are indeed focusing their
expertise on water-related issues.
■
Dorothy Lozowski, Editor in Chief
*For more on this technology from GE Power & Water, see " Turning wastewater
treatment into resource recovery, " Chem. Eng., November 2015, p. 7
CHEMICAL ENGINEERING WWW.CHEMENGONLINE.COM
NOVEMBER 2016
5
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Chemical Engineering November 2016

Table of Contents for the Digital Edition of Chemical Engineering November 2016
