Water Replenishment District of Southern California
broke ground on a
project to expand the agency’s existing Leo J. Vander Lans Advanced Water
Treatment Facility in Long Beach. The expansion project will more than double
the amount of recycled water produced by the facility to 9.8 billion L/yr (2.6
billion gal/yr). The facility takes disinfected tertiary-treated effluent from
the Long Beach water resource recovery facility and gives it an extra
“scrubbing” using microfiltration, reverse osmosis, and ultraviolet advanced
oxidation. After all these processes are completed, the water coming out of the
Vander Lans facility is of near distilled-water quality.
(Fort Lauderdale, Fla.) recently installed 80 DynaSand® EcoWash™
sand filtration modules at an energy producer in Tula, Hidalgo, Mexico, making
it the largest installation of its kind in Latin America and one of the biggest
in the world.
partner, Quimica Apollo (Toluca de Lerdo, Mexico State, Mexico), completed the
installation at the facility, where the sand filtration system is being used to
treat municipal wastewater for use in the plant’s cooling towers. The system is
built with an energy-efficient design that cuts reject water as much as 90%.
After upgrading to DynaSand, the facility has improved the quality of its
process water to contain only 2 to 4 mg/L of total suspended solids, compared
to 10 mg/L before the filtration system was installed.
upgrades at the Mexico plant also included installation of Parkson’s HiOx®
UltraFlex aeration system, which uses ultrafine-bubble technology to provide
treatment with lower energy demands than traditional systems.
Maris Desalination Ltd.
(Palmachim, Israel) selected NanoH2O Inc. (El Segundo,
Calif.), a manufacturer of reverse-osmosis membranes for seawater desalination,
to provide QuantumFlux high-rejection membranes for the expansion of its
Palmachim desalination facility. Via Maris, owner and operator of the Palmachim
plant, purchased the membranes for an existing 36,000-m3-capacity
seawater reverse-osmosis train in 2012 and will commission two additional
trains in 2013. These three trains will produce a combined total of 110,000 m3/d
of potable water.
SIPOS Aktorik GmbH
Germany) supplied nonintrusive, encoder-version actuator devices to help
automate water-level management on the Gwda River in Poland. The water-level
management project required precise control and an extremely long actuator run
time of more than 30 minutes at 160 rpm and 7000 revolutions per stroke. The
SIPOS Aktorik devices provided soft-start functionality and an automatic “retry
if blocked” response that appealed to the project operators. The operators had
explored other options, including alternative actuators and a potentiometer,
but these options could not meet the exacting demands of the project.
The Metropolitan Government of Nashville and Davidson
County (Tenn.)–Metro Water Services (MWS)
awarded RJN Group
Inc. (Wheaton, Ill.) the Shelby Park Area I Rehabilitation Project, the first
sewer rehabilitation project to be awarded as part of the Clean Water Nashville
Overflow Abatement Program.
RJN will evaluate and design comprehensive rehabilitation
improvements to the collection system within MWS’ rights-of-way and easements
with the goal of reducing rainfall-derived infiltration and inflow, as well as
renewing existing infrastructure. RJN will design rehabilitation improvements
for approximately 16,460 linear m (54,000 linear ft) of main lines, 280
manholes, and 750 service laterals using closed-circuit television and limited
field investigations. Primarily, rehabilitation techniques will consist of
cured-in-place-pipe, manhole lining, and lateral lining and cleanout
installation in MWS’ rights-of-way and easements. Rehabilitation also may
include pipe replacement, point repairs, and limited stormwater improvements,
Claude Resources Inc.
Saskatchewan) awarded a contract to Headworks BIO™ (Houston) to deploy the
company’s moving-bed biofilm reactor technology to treat underground-mine water
at the Seabee Gold Mine in northern Saskatchewan.
Claude Resources, which owns the Seabee Mine, chose the
solution because the mine required a wastewater treatment process to reduce the
ammonia content of its effluent. Headworks will deploy its proprietary
920 media and supply the aeration grids,
retention screens, and two blowers to the mine. During the treatment process,
the influent water will receive pretreatment to remove total suspended solids.
The water will then be heated to 10°C, and the effluent will be discharged
safely into a large pond.
AUMA Riester GmbH
(Mülheim, Germany), a
supplier of electric actuators to the water industry, was commissioned to
install more than 350 actuators and controls at the North Doha water resource
recovery facility, the only solids facility in Qatar and believed to be the
largest water resource recovery facility in the Middle East.
The actuators were installed as part of a $1.3 billion
project, which has resulted in a daily production capacity of 439,000 m3
of treated water. The comprehensive project includes treatment, pumping, and
distribution of treated water to West Bay, Al Dafna, Al Khorayat, and Umm
(Boston), a provider of
advanced water treatment solutions, won a competitive bid to supply a water
purification system to the Kittansett Club golf course in Marion, Mass. Wells
that historically have supplied essential irrigation water to the golf course
are being affected by accelerating seawater intrusion.
The Kittansett Club’s closed-circuit desalination
reverse-osmosis unit will treat 379 L/min (100 gal/min) of well water varying
from 1000 to 10,000 mg/L in dissolved salts. It is designed for maximum water
utilization and capable of producing more than 34 L (9 gal) of purified water
from every 38 L (10 gal) it is fed, thereby minimizing well withdrawals and
Santa Susana Field Laboratory
(SSFL; Simi Valley, Calif.) has installed state-of-the-art stormwater treatment
systems in response to the most stringent National Pollutant Discharge
Elimination System limits for stormwater runoff in the U.S.
In 2008, the Boeing Co. (Chicago), the owner of the SSFL
site, hired an independent panel of five internationally recognized
surface-water experts to study the site, conduct public meetings, and identify
ways to remedy stormwater runoff from the former rocket- and energy-testing
center. The panel prescribed a fusion of active treatments, best management
practices, and passive measures. They also ranked these by importance and
helped design them.
Guided by the panel, Boeing implemented more than a dozen
specific measures, such as new sampling stations, biofiltration units
incorporating native plants, pavement removal, erosion controls, culvert
modifications, sediment basins, channel modifications, and rock riprap in
creeks. The company also built two large surface-water treatment plants for $25
million. The largest one can treat 3785 L/min (1000 gal/min) of runoff.
so much progress, now one of the biggest compliance challenges at SSFL is not
contaminants from rocket tests or energy research but dioxins, which come not
only from legacy activities but also from naturally occurring sources, such as
ash from area wildfires.
To assist in addressing this challenge, Boeing will
employ a new $600,000 biofilter, which uses plants, soils, and filter media to
capture and treat silt and water.