England) installed screw blower technology by Atlas Copco (Stockholm) at its
water resource recovery facility (WRRF) in Newton Aycliffe, County Durham,
England, to help reduce energy consumption and minimize service costs.
Water needs a constant, reliable supply of air in the region of 480 mbar for
aerobic treatment of wastewater at the Newton Aycliffe WRRF. (The biological
process typically uses up to 70% of the energy consumed on site.) To help
achieve this, the utility decided to replace a lobe blower with the Atlas Copco
ZS screw blower technology. On completion of the installation of the new ZS
blower, Northumbrian Water carried out a comparison performance test between
the existing lobe blowers and Atlas Copco’s ZS technology. It revealed that the
existing lobe blower used approximately 19% more power for the same output.
Based on these test results and continuous reliability
issues with the lobe blowers, the utility decided to replace a second lobe
blower with an Atlas Copco ZS90-VSD, low-pressure, oil-free rotary screw
blower. Northumbrian Water now has placed a third order with Atlas Copco to
replace the remaining two lobe units installed at the WRRF with a further two
ZS 90 screw blowers.
(Paris) has begun
the operational management of the Northern West Virginia Water Treatment
Facility owned by CONSOL Energy Inc. (Canonsburg, Pa.) and located near Mannington,
W.V. The zero-liquid waste (ZLW) facility, which was designed and built by
Veolia, will treat 13,200 L/min (3500 gal/min) of mine drainage. By employing a
ZLW process, treated wastewater is returned to the ecosystem, improving the
water balance and condition of the Monongahela River watershed.
Veolia will provide operational management of the
facility for the next 10 years, guaranteeing CONSOL continual performance and
optimization of the system. The ZLW treatment removes contaminants from the
mine water and reduces them to solid salts. The process also uses a number of
sustainable practices and technology applications to reduce its carbon and
This environmentally sustainable design and construction
approach was developed to help CONSOL meet discharge standards for chlorides in
West Virginia’s waterways. The facility will treat water from CONSOL’s
Blacksville No. 2, Loveridge, and Robinson Run mining operations.
The Metropolitan Water
Reclamation District of Greater Chicago
(MWRD) awarded Black & Veatch
(Overland Park, Kan.) and Ostara Nutrient Recovery Technologies (Vancouver,
British Columbia, Canada) a contract to design and build a new nutrient
recovery system at the Stickney Water Reclamation Plant in Cicero, Ill. Black
& Veatch is providing design, procurement, and construction services.
Ostara will provide the nutrient recovery system, including equipment, as well
as operations and maintenance assistance to MWRD once the project is completed.
Ostara will contract with MWRD to purchase the recovered
nutrients, which it markets to commercial fertilizer blenders and distributors
in the agriculture, turf, and ornamental sectors.
The new facility is scheduled for completion in 2015.
Construction of the new stand-alone phosphorus recovery facility will not
interrupt the facility’s operation and will connect to the existing water
resource recovery facility, requiring only short-duration shutdowns of
Energy Recovery (San Leandro, Calif.) to provide its PX® Q line of
energy recovery devices for the United Arab Emirates’ Fujairah 1 Expansion
desalination project. With the PX Q technology, the plant will conserve 83,000
tonne of carbon dioxide annually, amounting to 140 million kWh of energy
savings and more than $14 million in cost savings annually.
Fujairah 1 Expansion is the longest running hybrid
seawater desalination plant in the Middle East, combining thermal and
reverse-osmosis technologies. This project will increase water production by
136,500 m³/d, totaling the plant’s production capacity to 592,000 m3/d.
In choosing Energy
Recovery’s PX Q technology, ACCIONA’s objectives were to lower the power
consumption of water production for the user and to reduce the physical
footprint of the energy recovery device trains. The new facility will use an
isobaric design, allowing the user to produce water at net-lower power
U.S. Army Corps of
selected Infilco Degremont Inc. (Rueil-Malmaison, France) to design and
supply Climber® Screen mechanical bar screens for the Corps’
Permanent Canal Closures and Pumps (PCCP) facilities near Lake Pontchartrain in
As part of this effort, the company will design and
supply 17 mechanical bar screens for channel debris removal, which will provide
frontline protection and safeguard the integrity of three pump stations. The
massive screens will handle an aggregate flow of 5,940,000 m3/d
(1570 mgd) and will vary between 7.3 and 8.8 m (24 and 29 ft) in width. With 17
units each reaching a depth 15 m (48 ft), PCCP will be one of the largest
screening projects undertaken by Infilco to date.
Fla.) installed a Neutralizer® system at the City of Deltona’s
(Fla.) Greenfield Eastern Water Reclamation Facility in Florida. BCR’s
Neutralizer is a scalable, environmentally responsible, and cost-effective
solution to managing wastewater residuals. The final product produced by
Neutralizer treatment is a high-quality soil amendment suitable for a variety
of agricultural and landscaping applications.
The City of Deltona chose the system over thermal dryers,
lime stabilization, pasteurization, and traditional digestion. City staff and
consulting engineers determined that the Neutralizer had the lowest overall life-cycle
costs and provided superior odor management, regulatory compliance, and solids
(Kingwood, Texas) announced the startup of a large-scale fluidized bed
bioreactor (FBR) system for American Pacific Corp. (AMPAC; Las Vegas), to
achieve the biodegradation of perchlorate and other constituents from
groundwater in the area of a former manufacturing facility in Henderson, Nev.
The 4500 m3/d (1.2 mgd) capacity system
replaces a smaller biological system that had been in service since 2006, and
uses Envirogen’s patented FBR technology in a custom configuration to reduce
influent concentrations of perchlorate of up to 500 ppm to nondetectable levels
prior to surface discharge.
With this FBR installation, Envirogen was able to meet
AMPAC’s target treatment goals for perchlorate as well as chlorate and nitrate,
while fine-tuning the equipment to provide them with the lowest-cost
performance possible. The technology also has the potential to treat other
contaminants, such as selenium, hexavalent chromium, or chlorinated solvents.
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