May 2013, Vol. 5, No.25

Projects

The 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. 

Parkson Corp. (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. 

Parkson’s 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. 

The 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. 

Via 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 (Altdorf, 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, if necessary.  

Claude Resources Inc. (Saskatoon, 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 high-surface-area ActiveCell ® 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 Salal. 

Desalitech (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 reject flow.  

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. 

With 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.