April 2012, Vol. 24, No.4

Projects

The McLennan County (Texas) Interstate Highway 35 project near Waco, Texas, will use more than 39,600 m (130,000 ft) of precast concrete pipe, box culverts, and inlets. The supplies, manufactured by Hanson Pipe & Precast (Irving, Texas), will be used to move and manage basic stormwater runoff for a project designed to ease traffic congestion by widening nearly 32 km (20 mi) of highway and frontage roads.

The total cost of this state-funded project is approximately $167 million (only a portion of the total will be used for stormwater controls). Construction began in October 2010 and is scheduled for completion in late 2014.

 

Thames Water Utilities Ltd. (Reading, England) signed a 3-year contract (with optional extensions in 2-year increments) with Severn Trent Services (Fort Washington, Pa.) for the design, manufacture, supply, installation, testing, and commissioning of wastewater treatment packaged plants. The agreement provides the utility with TETRA® NSAF tertiary ammonia removal technology to support Thames Water’s capital program for an asset management planning period from 2010 to 2015.

The upflow, fixed-film biological process is designed to be flexible and is available in a range of sizes — from small modular units suitable for aboveground or belowground construction to custom-made configurations for large plants. Thames Water Utilities has used this technology previously for wastewater treatment projects in Waddesdon, Culworth, and Byfield, England.

 

The City of Cincinnati has moved its environmental monitoring data onto the FlowWorks Web platform. In fall 2010, ADS Environmental Services (Huntsville, Ala.), a flow monitoring company, was bidding for services to Cincinnati and asked FlowWorks to join the bid to provide data management.

The companies will provide Cincinnati with flow services for capital improvement and other modeling projects. Included in the contract are flow servicing, data management, and quality assurance and quality control for more than 200 monitoring stations. The data will be combined with other Cincinnati environmental data from locations that include historic flowmetering stations, rain gauges, supervisory control and data acquisition pump stations, and combined sewer overflow and storm sewer overflow sites.

 

The City of Greenville, Miss., selected Mueller Systems (Atlanta) to upgrade its water system with an advanced metering infrastructure network and new “water smart” meters. The company will provide Greenville with the Mi.Net™ Mueller Infrastructure Network for Utilities, a two-way advanced metering infrastructure network, as well as Hersey® water meters for approximately 13,500 service connections.

 

The City of Evansville, Ind., signed a contract with Johnson Controls (Glendale, Wis.) to implement improvements and technology to help the city save energy, water, and millions of dollars while creating local jobs.

The program is funded by a performance-based contract that uses a portion of the energy savings expected to result from the capital improvements to pay for the project itself — without rate increases. It is projected to save the city $3 million annually and includes the replacement and automation of all Evansville Water and Sewer Utility water meters, improvements to water and wastewater treatment systems, and harnessing renewable energy at those treatment plants.

 

Membrana–Charlotte, a division of Celgard LLC (Charlotte, N.C.), entered into a limited exclusive agreement with Layne Christensen Co. (Mission Woods, Kan.), to remove radon and volatile organic compounds in municipal water applications in the United States. Membrana’s Liqui-Cel® membrane contactors are used for radon and volatile organic compound removal applications.

 

Amiad Water Systems Ltd. (DN Galil Elyon, Israel) has entered into a $2.85 million agreement for the next stage of a water filtration project with one of South Korea’s largest steel factories. As part of the project, the company will install its microfiber filtration system to treat wastewater and protect the factory’s reverse-osmosis membranes.

 

The Hartford (Conn.) Water Pollution Control Facility is the site of one of the largest energy recovery projects on the U.S. East Coast. The 303,000-m3/d (80-mgd) facility, owned and operated by the Hartford Metropolitan District, is receiving upgrades to its biosolids incinerator and processing system, as well as a new energy recovery facility that will capture heat from the incinerators to produce steam. The steam will power a turbine and produce an estimated 1.7 MW of electricity, approximately 40% of the facility’s power consumption.

The project, designed by Black & Veatch (Overland Park, Kan.), will give the district the flexibility and adequate redundancy to operate two incinerators at all times — the maximum number allowed by permitting requirements — and, therefore, will maximize the use of the energy recovery facility.

Construction on the recovery facility began in March 2010 and completion is scheduled for November 2012.

 

The City of Wichita, Kan., has received $123,000 from the U.S. Environmental Protection Agency for improvements to the city’s storm sewer system. The money will help to fund a $391,000 project to construct a new storm sewer in an area developed in the 1950s without storm sewers. The new sewer will prevent area flooding during heavy storms. The project will include installation of approximately 730 m (2400 ft) of storm sewer pipe, 20 stormwater structures, and 13 manholes. The project is expected to be completed this fall.

 

San Antonio de Los Cobres, Argentina, a village of 6000 residents in the Andes Mountains, recently received a water treatment system from His Heart Missions (Mooresville, N.C.). The new system will reduce arsenic from concentrations of 290 ppb to less than 10 ppb, the maximum contaminant level set by the World Health Organization.

The treatment system, manufactured by AdEdge Water Technologies LLC (Buford, Ga.), features a two-stage system. The first stage uses AdEdge GS+ coagulation filtration media with an iron augmentation module. The second stage uses granular ferric oxide adsorption media. An existing sodium hypochlorite chemical feed module was integrated with the system. Both treatment systems are modular and operated manually to accommodate the design flow of 760 L/min (200 gal/min). The water system is served by a springhead from which the untreated water passes through a series of existing sand filters that reduce the arsenic level from 290 to 222 ppb; the pretreated water flows into a catch basin and through an underground pipe to the treatment systems before being distributed to the users in the community.

Since startup, water quality test results show the system is reducing the arsenic concentration levels to less than 5 ppb, according to an AdEdge press release.

 

The Marbleton (Wyo.) Wastewater Treatment Plant will receive a 3100-m3/d (0.82-mgd) AnoxKaldnes moving-bed biofilm reactor LagoonGuard® nitrification system, manufactured by Kruger Inc. (Cary, N.C.). The moving-bed biofilm reactor process will enable the existing lagoon system to meet strict ammonia limits year round, even at winter temperatures, according to a Kruger press release. Fischer Construction Inc. (Lander, Wyo.) awarded the contract for the system to the company.

The new system is expected to be operational by this fall.

 

The Baltimore Department of Public Works Bureau of Water and Wastewater has selected Dewberry (Fairfax, Va.) to provide approximately $1 million in water design and engineering services. The contract focuses on improvements to 12.9 km (8 mi) of the city’s aging water mains. The work includes water-main assessment and determination of the need to rehabilitate or replace the existing infrastructure, design, construction documentation, and cost estimating.

Baltimore’s Bureau of Water and Wastewater maintains approximately 5470 km (3400 mi) of water mains throughout the city and county.

 

© 2012 Water Environment Federation. All rights reserved.