Water Environment & Technology (WE&T) is the premier magazine for the water quality field. WE&T provides information on what professionals demand: cutting-edge technologies, innovative solutions, operations and maintenance, regulatory and legislative impacts, and professional development.
In 2014, the Santa
Clara Valley Water District in San Jose, Calif., surged forward in its goal to
meet at least 10% of county demand with recycled water by 2025. In partnership
with the City of San Jose, the district commissioned the largest advanced water
purification facility in Northern California.
A clear winner
The Pima County
Regional Wastewater Reclamation Department in Tucson, Ariz., and CH2M Hill
(Englewood, Colo.) recently started up the first large-scale dissolved air
flotation primary clarifiers in the world at its new 121-million L/d (32-mgd)
Agua Nueva Water Reclamation Facility.
Cooking up a novel solution
of Florida scientist uses wood chips byproduct to remove arsenic from
Coming in the next issue:
collection and treatment is a financial balancing act. Spend too little, and
you risk critical elements being undersized or not properly maintained; spend
too much, and you risk being labeled as a squanderer. The March issue includes
several stories about utilities that spent their funds wisely.
“A collection system on the cloud,” a switch to mobile devices to locate and
track the condition of collection systems pays off. The utility took an
innovative approach that uses a mobile app for smart phones and tablets to help
inspection crews locate sewer manholes and create a comprehensive inventory and
survey all manhole assets. All data are stored in the “cloud” — on remote
servers accessible via the Internet — and are used to develop a geodatabase and
comprehensive geographic information system map.
“Penny by penny, drop by drop,” Baton Rouge, La., implements 110 projects worth
approximately $1.6 billion involving wastewater treatment and storage,
comprehensive rehabilitation, capacity improvements, and supplemental projects.
The program is self-funded via a combination of municipal bonds, sewer sales
taxes, and sewer user fees. The parish uses numerous funding avenues for the
capital portion of the program as well as operations and maintenance of the new
assets into the future.
article, “It’s the fibers: Attacking the wipes problem at the pump station,”
examines a three-phase approach to eliminating the clogging, maintenance costs,
and safety issues caused by nondispersibles. By studying the behavior of wipes
in pump stations, utilities can find most cost-effective solutions to minimize
maintenance needs and ensure as much equipment uptime as possible.
Also in this issue:
it. Large decentralized wastewater treatment system installations increase in
popularity as lower-cost, high-efficiency solutions.
BNR. A passive nitrogen reduction system shows promising results for onsite
with biosolids. Researchers seek to extract cellulose
from residuals for reuse.
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