February 2012, Vol. 24, No.2

Projects

The $2.3 million expansion and upgrade of the Snug Cove Wastewater Treatment Plant on Bowen Island, British Columbia, is substantially complete, according to a press release from ECOfluid Systems Inc. (Burnaby, British Columbia). The upgrade features the implementation of a USBF® membrane bioreactor configuration, which has provided the municipality with the opportunity to reuse the treated effluent for irrigation at a nearby regional park or in future
dual-plumbing applications.

 

Oldcastle Precast Inc. (San Diego) has been awarded a contract to manufacture and install 461 1.8-m × 3.7-m × 2.1-m (6-ft × 12-ft × 7-ft) precast concrete manholes and pull boxes for the communication system upgrades at Camp Pendleton, Calif., as part of the U.S. Marine Corps’ $103.4 million basewide utilities infrastructure upgrades. The $54 million project is scheduled for completion by March 2013.

 

The Village of Mount Zion, Ill., has selected Mueller Systems (Cleveland, N.C.), to provide an advanced metering infrastructure network that will help the city improve customer service and reduce operational costs associated with its water system. Mount Zion will use the Mi.Net System to link more than 2100 commercial and residential water meters in its service area, enabling Mount Zion’s Public Works Department to monitor household water consumption from its office in real time.

The system uses Mi.Hub installations on Mount Zion light posts to collect data from water meters in the network and transmit the information to the utility’s server.

 

The Zhang Gui Zhuang Wastewater Treatment Plant in Tianjin, China, in September announced that it will install a TETRA® Denite® denitrification system. The system, manufactured by Severn Trent Services (Fort Washington, Pa.), will be the largest deep-bed denitrification installation in the country.

The contract was awarded by Anhui Genda Environmental Engineering Co. Ltd. (Beijing), the contractor for Phase 1 clarifier and filter installation of the new plant. Under the contract, the treatment system will help the plant meet stringent Class 1A effluent discharge standards by simultaneously removing total nitrogen, total phosphorus, and total suspended solids.

The new Zhang Gui Zhuang plant will be located in Yao Liu Qiao County, Dong Li District, and will treat wastewater for a service area that spans 17,500 ha. Phase 1 of the plant will treat 200,000 m3/d.

Once completed, the entire wastewater treatment plant will enable the Dong Li District to raise its wastewater treatment rate to more than 95%. The plant is expected to be the role model project for wastewater treatment, solids processing, and water reuse in Tianjin.

 

Southern California Edison (Rosemead), one of the largest electric utilities in the United States, has chosen Dewberry (Fairfax, Va.) to develop a real-time, numerical water resource model to simulate the hydrology and hydraulics of the upper San Joaquin River watershed as it pertains to the Big Creek hydrographic system.

The Big Creek hydrographic system covers roughly 4270 km2 (1650 mi2) of the upper San Joaquin River watershed in the central High Sierra region of California. The upper San Joaquin River watershed is the source region for much of California’s potable water supply.

Engineers in the company’s Sacramento-area office will integrate meteorological data collection, hydrologic modeling, reservoir operation simulation, and hydraulic analysis to create the water resources model.

 

Colorado Springs (Colo.) Utilities this fall hosted a celebration at the Pueblo Dam to mark the start of the construction phase of the Southern Delivery System (SDS).

SDS is a collaborative regional pipeline project that will transport water from the Arkansas River to provide a long-term water supply to the growing population of Colorado Springs and surrounding communities. With the ultimate capacity to deliver up to 363,360 m3/d (96 mgd), SDS will provide a stable supply of water for decades to come.

Phase 1 comprises four main components needed to transport water through the dam and serve the SDS pipeline: 97 km (60 mi) of untreated and treated water pipeline with a connection to the Pueblo Dam; three untreated-water pump stations; a 189,250-m3/d (50-mgd) water treatment plant and treated-water pump station; and a comprehensive project instrumentation and control system.

Carollo Engineers (Walnut Creek, Calif.) and McCarthy Construction (St. Louis) are working on the project under a design–build partnership. Phase 1 construction is scheduled to be completed and the entire SDS project fully operational in 2016.

 

The Yas Island Water Park in Abu Dhabi, United Arab Emirates, has chosen to install three midsize onsite sodium hypochlorite generators to disinfect its aquatic features.

The water park will utilize three MIOX RIO H5 units manufactured by MIOX Corp. (Albuquerque, N.M.). The units are capable of generating a total of 680 kg/d (1500 lb/d) of free available chlorine on site, on demand. MIOX distributor CoolTech Gulf (Dubai, United Arab Emirates) was integral in winning the project with ALEC (Dubai), the contractor that was awarded the $165 million contract for the water park.

 

More than 760 m (2500 ft) of 3-m × 2.7-m (10-ft × 9-ft) reinforced precast-concrete box culverts will be installed for expansion of the Turlington Mine located near Fairfield, Texas, between the Trinity River and Fairfield Lake. The 782 m (2566 ft) of precast concrete, which was produced by Hanson Pipe & Precast (Irving, Texas), consisted of two separate culverts. One is a single-barrel reinforced-concrete box culvert that is 78 m (256 ft) long, and the other is a 21-barrel culvert, each with a final length of 33.5 m (110 ft).

The project was designed to enable groundwater to flow naturally while supporting the heavy dragline excavators frequenting the mine area.  

 

The City of Saskatoon, Saskatchewan, has approved construction of a facility at its H.M. Weir Wastewater Treatment Plant that will recover phosphorus and nitrogen from treated wastewater streams and transform them into a slow-release fertilizer called Crystal Green®. The project will install the Pearl® Nutrient Recovery Technology, which was created by Ostara Nutrient Recovery Technologies Inc. (Vancouver, British Columbia), to help overcome current operational issues caused by the unintentional buildup of struvite.

The plant also will be the first commercial implementation of Ostara’s WASSTRIP® process, which enhances the efficacy of the Pearl process and controls struvite scale formations throughout the solids treatment stream.

 

The Schweighofer Group , an Austrian family-owned enterprise with forest-based industry as its core, in October selected Aquantis (Ratingen, Germany), a subsidiary of Veolia Water Solutions & Technologies (Paris), to design and build a wastewater treatment and energy generation plant for its Schweighofer Fiber GmbH site in Hallein, Austria. The new plant, which will use BIOBED® EGSB anaerobic reactors, will treat approximately 5700 m³/d of wastewater with an organic load of 62 Mg of chemical oxygen demand per day.

The treatment process also will generate biogas with a combustion capacity of approximately 4 MWh. The biogas produced will be fed to the existing biomass power station — this will be a significant contribution to reduce both the operating costs and the carbon footprint.

 

The Spring Creek Utilities Co. (Elko, Nev.) has elected to install three packaged systems to reduce arsenic from three individual well sites where testing revealed excessive concentrations higher than the U.S. Environmental Protection Agency’s maximum contaminant level of 10 ppb.

Sunrise Engineering (Fillmore, Utah), the utility’s engineering firm, will work with AdEdge Water Technologies LLC (Buford, Ga.) to design and build three WaterPOD™ containerized water treatment systems. Each WaterPOD™ system consists of a separate, completely packaged, prepiped, instrumented, and automated system housed inside a 12.2-m × 2.4-m (40-ft × 8-ft) customized modular building. The three systems’ combined design flow will be about 7380 L/min (1950 gal/min).

 

RJN Group Inc. (Wheaton, Ill.) installed six flowmeters in the Des Plaines, Ill., sanitary sewer system. In recent years, the city has been experiencing sewer surcharging during heavy rain events that is exacerbated by storm drainage issues. RJN monitored the flowmeters, determined the quantity of excess flow, and used hydraulic modeling to determine sewer capacity. The data from the flowmeters and the hydraulic modeling will be used in a final report to the city that includes recommendations for improvements to increase capacity and reduce inflow and infiltration.

 

The Manila Water Co. in the Philippines has signed a $62 million contract for the construction of its Marikina North Sewage Treatment Plant. OTV, a subsidiary of Veolia Water Solutions & Technologies (Paris), in partnership with civil contractor Sta. Clara (Mandaluyong, Philippines) will design and build the plant.

Located along the eastern part of Metro Manila, Marikina City is a progressive urban area. The treatment plant is designed to have a processing capacity of 100,000 m3/d and will include a new inlet plant, preliminary treatment, sequencing batch reactor biological treatment as the core treatment process, and disinfection by chlorination. A new solids-dewatering facility also will also be provided, as well as an odor treatment system and noise abatement measures.

The new plant is scheduled to be commissioned in 2013.

 

The Southeast Wastewater Treatment Plant in Rolla, Mo., is slated to receive new direct-drive turbocompressors manufactured by Siemens Energy (Washington, D.C.). The turbocompressors will provide compressed ambient air to meet the biological oxygenation needs at the city-owned facility.

 

The Orange County (Calif.) Water District board of directors voted this fall to award a contract to construct the 113,600-m3/d (30-mgd) initial expansion of the district’s Groundwater Replenishment System (GWRS) to McCarthy Building Cos. Inc. (St. Louis).

The overall project cost is $142.7 million, with the construction portion totaling $115.1 million. The project will create an additional 38.2 million m3/yr (31,000 ac-ft/yr) of new water supplies to serve north and central Orange County, bringing the total production of GWRS to 127 million m3/yr (103,000 ac-ft/yr), enough water for 850,000 people.

Construction is estimated to be completed in September 2014.

 

Maynilad Water Services Inc. (Balara, Quezon City, Philippines) selected the STM-Aerotor, manufactured by WesTech Engineering Inc. (Salt Lake City), for its treatment process because of the equipment’s ability to meet regulations, fit into a tight footprint, and use much less power. The STM-Aerotor uses both integrated fixed-film and activated sludge technologies as part of a process that provides biological treatment for municipal wastewater. The system in Baesa District is the first of its kind to be installed in the Philippines.

 

Massachusetts Water Resources Authority (MWRA) selected Emerson Process Management (St. Louis) to replace outdated human–machine interface systems at the Deer Island Wastewater Treatment Plant with its Ovation™ technology. The new interface is intended to make it easier for operators to effectively control daily operation and ensure regulatory compliance. The plant is the second largest wastewater treatment plant in the United States. It serves 43 Boston-area communities and is the centerpiece of MWRA’s $3.8 billion program to protect Boston Harbor against pollution. When installed in March, the new interface system will manage approximately 30,000 input/output points.

In Yuma, Ariz., the city’s three potable water tanks are works of art. Featuring colorful murals of the local landscape, the 15-m-high, 30-m-wide (50-ft-high, 100-ft-wide) tanks each also feature a solar-powered floating SB2500v12 mixer manufactured by SolarBee (Dickinson, N.D.).

By actively mixing Yuma’s potable water storage tanks, the mixers help ensure uniform distribution of disinfectant and other issues that arise from a lack of mixing. Since the mixers were installed, the city’s comprehensive monitoring has confirmed that water temperatures are uniform throughout each tank, stratification issues have been resolved, and there is no longer any short-circuiting.

 

Owned by EPCOR Utilities Inc. (Edmonton, Alberta), the Gold Bar Wastewater Treatment Plant (Edmonton), one of the largest wastewater treatment plants in Alberta, selected Headworks Inc. (Houston) to supply three Mahr® bar screens to replace existing multirake screens. Each new screen is designed to handle flows of 299,000 m3/d (79 mgd) with 6-mm (0.25-in.) bar spacing. The screens are scheduled to be installed this spring.

 

The Woodard & Curran Foundation (Portland, Maine), a 501(c)(3) public nonprofit organization established in October 2010, recently awarded its first $5000 grant. The money will fund a project by the University of Maine (Orono) student chapter of Engineers Without Borders (EWB; Boulder, Colo.) to bring clean water to the village of Dulce Vivir in western Honduras.

The 120 residents of Dulce Vivir suffer from illnesses resulting from poor sanitation, limited access to safe water, and flooding. The EWB student chapter has been working in Dulce Vivir since 2008. Its first project was a drainage design that diverted runoff, significantly helping the flooding problem. The group currently is focusing on completing construction of leach fields and installing septic tanks in connection with a wastewater collection system.

 

The Denver Metro Wastewater Reclamation District is upgrading the secondary clarification process at its Robert W. Hite Treatment Facility. The upgrade will install 10 Tow-Bro high-performance clarifiers, manufactured by Siemens Industry Automation Division (Nuremburg, Germany).

Improvements to the main treatment facility are needed to replace aging clarification equipment and improve overall treatment performance. Part of a two-phase plant expansion project, the systems are valued at more than $3.5 million. The clarifiers are expected to be shipped in 2012, with five projected to come on-line in 2013 and the other five in 2014.

 

 The U.S. Marine Corps Recruit Depot in San Diego has chosen to install an ecological wastewater treatment and reuse technology for blackwater and graywater manufactured by Living Machine Systems (Charlottesville, Va.).

The onsite system will extract wastewater from an existing sewer line at the base and treat it to meet California’s rigorous water reuse standards. The system will recycle 37,800 L (10,000 gal) of wastewater per day.

The depot provides basic training for more than 21,000 recruits per year and is recognized as one of the leading U.S. Department of Defense facilities for the implementation of clean technology.

In Mazatlan, Mexico, the Perscados Industrializados S.A. (PINSA) tuna cannery has completed a pilot-testing and elected to install a full-scale MeurerMBR, a back-pulsable, flexible flat-sheet membrane bioreactor manufactured by Meurer Research Inc. (Golden, Colo.).

Producing more than 1 million cans daily, PINSA is one of the largest manufacturers of canned tuna in the world. The cannery’s wastewater is a byproduct of defrosting, carving, cooking, and canning. The company is updating its wastewater system to comply with new effluent quality regulations adopted by the Mexican government.

The bioreactor was chosen for its small footprint, exceptional effluent quality, and new, patented BIO-CEL® mechanical cleaning process, which removes membrane deposits without using toxic chemicals, eliminates the costs of chemical purchase and storage, and maintains membrane permeability.

In the full-scale system, 30% of the MBR effluent will be further polished for plant reuse through ozone, activated carbon, and reverse-osmosis processes. Construction of the full-scale system is under way.

 

©2012 Water Environment Federation. All rights reserved.