The Bordeaux region of St. Thomas had a pressing need for a wastewater treatment plant that produces high effluent quality. Its existing plant was old and did not meet regulation nor industry standards. Fluence, together with its partner SD&C Inc., built an MABR-based wastewater treatment plant from the ground up, utilizing whatever existing pieces of equipment could be used from the old plant.
When the Cobb County-Marietta Water Authority (CCMWA) anticipated the need to upgrade the Hugh A. Wyckoff water treatment plant, they turned to granular activated carbon (GAC) technology after vetting several alternatives. The plant, a wholesaler in a two-plant system, processes up to 72 million gallons per day and serves about 350,000 people. Comprising of Wyckoff and the James E. Quarles treatment plant, CCMWA is the second largest water provider in Georgia.
The Hagerstown Wastewater Treatment Plant in Maryland incorporated several plant modifications, one of which was the conversion of their disinfection process from the use of ozone to UV.
The North Columbus Resource Facility recently completed a $12-million replacement of its settled water filtration, removing the existing Wheeler filters, their three-part media and 10-inch poured concrete underdrains, which were no longer efficient.
Installing and operating an ozone oxidation system for wastewater remediation at a gold mine located in a remote region of Alaska is full of challenges.
When Plainfield, IN, needed to double their permitted capacity from 2 MGD to 4 MGD at their South wastewater treatment plant, they faced a dilemma. Like most treatment plants, space is at a premium, and compact design was needed not only for the current expansion, including the addition of a post aeration structure, but to preserve as much room as possible for projected future expansions.
The Honouliuli Water Recycling Facility (WRF) includes filtration and UV disinfection to treat to Class R-1 reuse standards for various uses, including irrigation. In order to maintain high-level reuse, simplify maintenance, and reduce operation costs, the Honolulu Board of Water Supply decided to replace its 15-year-old TrojanUV4000™ with a TrojanUVSigna™. With the high cost of power in Hawaii, this system upgrade will provide significant power savings (estimated at 75%) and will enable equipment payback in less than 2.5 years.
In 2016 Hillsborough County Public Utilities, a forward thinking organization, initiated the first direct potable reuse pilot project in Florida. In its efforts to utilize 100 percent of its reclaimed water, the progressive utility created a successful program to effectively suspend surface water discharges. Read the full case study to learn more.
The Hudson River, in the Capital District of Albany, NY, is a popular recreational area for boating, swimming and fishing. Unfortunately combined sewer overflows following storm events and snow melt from sewer systems dating back to the 1800’s were causing increased fecal coliform counts which in turn resulted in health alerts and limited access to the river. After considering several alternatives, the Albany County Sewer District selected a Wedeco Duron 60i2-2.5X4, with high power Ecoray 600W lamps, for their disinfection system.
The City of Dundee is a growing community with a strong economy boasting three wineries within the city limits and several others in the surrounding Willamette River Valley. The City’s existing WWTP was nearing capacity, and the limited discharge to the Williamette River would not adequately support Dundee’s planned growth.
Facing new limits on acceptable levels of DBPs in the drinking water, as well as age-old complaints about the taste of the water during the summer algal bloom, the North Texas Municipal Water District turned to ozone disinfection as a possible alternative able to address both concerns.
In an effort to reduce reliance on dwindling surface and groundwater supplies in Texas, the Colorado River Municipal Water District (CRMWD) constructed a new Raw Water Production Facility (RWPF) in Big Spring. Big Spring is a 27,000-member community located in West Texas approximately 300 miles west of Dallas. This RWPF treats secondary wastewater to a standard that allows it to be re-introduced directly into the raw water supply for the water treatment plants of Big Spring, Odessa, and other communities in the region.
The Swedish ozone generator supplier, Primozone, has been awarded funding of a project for removal of pharmaceutical residue from waste water.
Pulsafeeder, a global leader in fluid handling technology since 1942, today announced the availability of “Just-in-Time” standard Chemical Feed Systems for its Eclipse Series and PulsaPro Series dosing pumps
Savannah River Remediation LLC group evaluated 26 aquatic augmentation remediation technologies and selected NewTechBio's NT-MAX Lake & Pond Sludge and Muck Digester, a microbial based beneficial bacteria, in conjunction with Hexa Armor/ Rhombo cover manufactured by AWTT, Inc., to correct deficiencies with National Pollutant Discharge Elimination System requirements.
Aquionics, a leading provider of ultraviolet (UV) disinfection technology is to unveil a new US EPA and NWRI-validated energy efficient UV system for municipal waste water and reuse water applications at WEFTEC 2017
Franklin County will begin design work – the pre-construction phase – this year in an upgrade of the Darbydale wastewater treatment plant to reduce nutrient discharges and improve water quality in Big Darby Creek, thanks to a zero-interest loan from Ohio EPA.
The open access article for the June 2015 issue of Water Environment Research (WER) examines biopolymers production by mixed culture and their applications in water and wastewater treatment.
NeoTech Aqua Solutions Inc., the leader in high-efficiency UV systems for disinfection, Advanced Oxidation Processes, and TOC Reduction in water and water reuse will be participating at the IUVA America's Regional Conference in White Plains, NY from October 26-28th, 2014.
Xylem Inc., a leading global water technology company dedicated to solving the world’s most challenging water issues, announced recently that it has signed a $7.3M contract with Bahrain’s Ministry of Works to upgrade a wastewater treatment facility in Manama, the capital city of Bahrain.
The ribbon has been cut at the Terrence J. O’Brien Water Reclamation Plant (WRP) in Skokie, Illinois.
In May 2014, Wichita Falls, Texas found itself under a stage 5 drought catastrophe ranking during the second worst drought in the city’s history.
Padre Dam Municipal Water District celebrated the grand opening of its Advanced Water Purification Demonstration Facility and tour program today. The demonstration facility will use advanced water purification technologies to purify and test approximately 100,000 gallons of recycled water each day.
Ecosphere Technologies, Inc. (OTCQB:ESPH), a water engineering, technology licensing and innovative U.S. manufacturing company, today announced that its subsidiary, Ecosphere Exploration and Mining Services LLC (EEMS) has signed a Letter of Intent (LOI) with Dominion Water LLC of Sedalia, Colorado.
NeoTech Aqua Solutions Inc., the leader in high-efficiency UV systems for disinfection, Advanced Oxidation Processes, and TOC Reduction in water and water reuse will be participating at the WEFTEC Conference in New Orleans, Louisiana September 27 through October 1.
MIOX Corporation, the industry leader in on-site chemical generation technology, announces it will showcase a new technology for produced and flowback water disinfection at the Society of Petroleum Engineers (SPE) International Symposium on Oilfield Chemistry in The Woodlands, TX on April 8th and 9th, 2013.
The U.S. Environmental Protection Agency (EPA) and Justice Department’s Environment and Natural Resources Division announced recently a settlement with Cal-Maine Foods, Inc., one of the nation’s largest egg producers, that resolves Clean Water Act violations at the company’s poultry egg production facility in Edwards, Miss.
AdEdge Water Technologies (AdEdge) and InNow India Pvt. Ltd. (InNow) recently announced a joint venture to provide innovative water treatment solutions for municipalities in India for the removal of arsenic, nitrate, radionuclides, and fluoride among other contaminants.
Xylem has been awarded a contract to provide an existing wastewater treatment plant with advanced treatment technology, which will play a key role in an initiative focused on improving water quality in the Chesapeake Bay.
Wastewater disinfection takes place after primary, secondary and sometimes tertiary wastewater treatment. It is typically a final step to remove organisms from the treated water before the effluent is released back into the water system. Disinfection prevents the spread of waterborne diseases by reducing microbes and bacterial numbers to a regulated level.
A variety of physical and chemical methods are used to disinfect wastewater prior to it being released into natural waterways. Historically, the chemical agent of choice for municipal wastewater treatment has been chlorine, due to its disinfecting properties and low cost. However, the rising cost of chlorine and concerns that low chlorine concentrations can still be toxic to fish and other wildlife, has given rise to more physical methods of wastewater disinfection being adopted such as ozonation or ultraviolet (UV) light.
The use of ozone as a disinfection agent has the added benefit of increasing the dissolved oxygen content of the treated wastewater. However, because the ozone has to be generated, ozonation can require prohibitive up-front capital expenditure compared to traditional chlorination. UV disinfection has been growing in popularity as a wastewater disinfection method, in large part because of the life-cycle economics of the equipment and the fact that, like ozone, there is no toxic residual.