The City of Maumee,
will upgrade its water system with an advanced metering
infrastructure (AMI) network by Mueller Systems (Cleveland, N.C.). Mueller
Systems will provide the city with the Mi.Net® Mueller
Infrastructure Network for Utilities, a two-way AMI network that will automate
the city’s meter-reading-to-billing process by linking its meters, distribution
sites, and control devices to a single data network.
The system provides
on-demand meter readings, e-mail alerts, and alarms, based on near real-time
information, as well as the ability for utilities to better manage their water
and electric resources through ongoing access to customer data and information.
Its Web-based consumer portal enables consumers to view their current and
historic water consumption levels online and set budget and conservation goals.
In addition to
implementing the Mi.Net system, the city will replace all residential water
meters in its service area with Mueller Systems’ Hersey® 400 Series
Bronze Positive Displacement meters. It also will replace all of its compound
water meters with Mueller Systems’ magnetic flowmeters to more accurately
measure water flow with minimal head-pressure loss.
The City of Indianapolis
approved a pipe manufactured by Prinsco (Willmar, Minn.) for use in stormwater
projects that specify a high-density polyethylene (HDPE) pipe. Prinsco’s ECOFLO
100 dual-wall pipe is made with a minimum of 40% recycled content and passed
extensive review by Indianapolis Testing Laboratory to verify its 100-year
service, past product performance, and conformity to application standards. The
results prompted Indianapolis to update its previous project specification,
which required the use of only 100% virgin-HDPE pipe. Indianapolis is one of
the first municipalities to specify ECOFLO 100 as a virgin-HDPE equivalent.
Pa.) will install its zero-liquid discharge (ZLD) wastewater treatment
technology at two new 758-MW natural-gas-fueled, combined-cycle power plants in
Texas. In recent years, Texas has experienced a drought, and by using the ZLD
technology, the two power plants, located in Sherman and Temple, will be able
to reduce incoming water needs.
The Temple Power Plant
will use treated water from a nearby water resource recovery facility, and the
Sherman Power Plant will use Lake Texoma as its cooling-water source. The ZLD
systems will treat 1703 L/min (450 gal/min) of water for each plant, more than
98% of which can then be reused.
GE’s brine concentrator
and ZLD crystallizer technology were selected for the projects based on their
record of reliability, performance, high-quality materials, and modularization,
as well as GE’s ability to meet the demanding schedule and reliability
requirements for both power plants.
Panda Power Funds
(Dallas) owns the two power plants, and Bechtel (San Francisco) will serve as
the engineering, procurement, and construction contractor.
The Kingdom of Saudi
Arabia’s Ministry of Water and Electricity
contract to Headworks (Houston), a designer and manufacturer of advanced
wastewater treatment processes for municipal and industrial facilities, to
design a moving-bed biofilm reactor (MBBR) system to upgrade an activated
sludge plant in the kingdom’s Eastern Province. Under the terms of the
agreement, Headworks will execute the process design and supply the core
components of the MBBR system, including media, aeration grids, and media
retention screens. Headworks also will use its ActiveCell
680 m2/m3 of protected surface area. The MBBR system will
achieve biochemical oxygen demand reduction and nitrification, producing
effluent suitable for reuse and irrigation applications.
Guarantee Electrical Co.
(GECO; St. Louis) is installing electrification and process control at a new
$55.6 million municipal water resource recovery facility being built by Cape
Girardeau, Mo., and updating its existing facility. The new facility, which
will bring the city into compliance with federal and state wastewater treatment
regulations, will have an average capacity of 42,000 m3/d (11 mgd)
and a peak capacity of 190,000 m3/d (50 mgd). It will supplement the
city’s existing 26,000-m3/d (7-mgd) facility that opened in 1962.
GECO is installing
electrical switchgear; process equipment instrumentation; and alarm, security,
and voice/data systems. In the existing plant, GECO is performing selective
disconnection and demolition, followed by updates to certain control systems.
GECO also will oversee specialty subcontractors responsible for testing,
infrared testing, and lightning protection installation.
Municipal Utility District
(HRMUD; Horizon City, Texas)
selected Severn Trent Services (Fort Washington, Pa.) to provide contract
management and operations and maintenance services for the district’s water and
wastewater systems through a public–private partnership. Severn Trent also will
provide meter reading, customer service, and billing for HRMUD. The HRMUD water
treatment plant uses reverse osmosis and has been rated a Superior Water System
by the Texas Commission on Environmental Quality. The plant has a treatment
capacity of up to 30,000 m3/d (8 mgd), while the water resource
recovery facility has a capacity of 11,000 m3/d (3 mgd).
The City of Garretson,
will be the first in the country to deploy a combined
water and natural gas advanced metering analytics solution by Badger Meter
(Milwaukee). The city decided to replace its existing walk-by/drive-by
automatic meter-reading system with a more advanced ORION
solution that enables meters automatically to transmit readings to a central
location throughout the day. Coupled with the ReadCenter
software, it will provide more-timely and efficient readings and information
that will help the city proactively manage its utility operations.
The Town of Taralga,
awarded a contract to Xylem Inc. (White Plains, N.Y.), a
global water technology company, to develop a customized water treatment
system. Xylem will produce a containerized solution using GE (Trevose, Pa.)
ZeeWeed membrane technology that will provide high-quality drinking water for
300 people in the remote town. Construction began in January, with delivery
scheduled for July.
Xylem has designed the
water treatment system for Taralga to be compact, durable, and flexible enough
to allow for increases in output if required in the future. Because the main
raw water source for the system is a river, key challenges for the solution are
algae and high variations in incoming turbidity, which can spike as high as 80
nephelometric turbidity units. In addition, since the water temperature in the
region drops to 5°C during winter, the plant has been designed with the ability
to treat cold water at a similar rate as the water temperatures experienced
during warmer months.
Gresham, Smith, and
(GS&P; Nashville), a leading multidisciplinary
design and consulting firm, completed its expansion and renovation efforts at
the Bowling Green (Ky.) Wastewater Treatment Plant, a property of Bowling Green
Municipal Utilities (BGMU). The improved facility was designed to meet existing
and future effluent requirements, including removal of total nitrogen and
phosphorus, and to implement sustainable and cost-effective solutions for handling
and disposal of biosolids.
To expand treatment
capacity within limited space, GS&P’s plan called for a 57,000-m3/d
(15-mgd) sequencing batch reactor to replace the 40,100-m3/d
(10.6-mgd) aerated biotower facility. The new facility is the largest sequential
batch reactor in the United States and will provide more-efficient processing
for higher volumes. It achieves current standards for effluent nutrient levels
and can be retrofitted easily with microfilter or ultrafilter membrane
technology should future standards become even more stringent.
The expanded facility
also incorporates an indirect thermal dryer that will convert biosolids into
11.3 dry Mg/d (12.5 dry ton/d) of a sustainable Class A product that can be
used as an agricultural soil supplement. The project includes a Therma-Flite IC
10000 dryer, the first to be used for municipal biosolids, which can process
4500 kg/h (10,000 lb/h). It was installed in response to BGMU’s concerns about
its existing method, which involved dewatering biosolids in a single centrifuge
and hauling the waste 64 km (40 mi) to a landfill. The thermal dryer represents
an environmental and economic improvement over this previous practice, as it
promotes sustainable use of waste and is projected to reduce BGMU’s residuals
management costs by at least 50% per dry ton.