The district manager for the Pinetop-Lakeside Sanitary District (AZ) reports that a special gas chlorination system, featuring unique components and controls, and manufacturer-supplied service, has effectively replaced a chlorine tablet system.
Petron Bataan Refinery wanted to expand production to process 180 thousand barrels of crude oil per day while changing its feedstock from Arab Light to less costly heavy and sour crudes.
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 Bissell Point Wastewater Treatment Plant is the largest wastewater treatment facility in Missouri with an average flow rate of 123 MGD. In the mid-1980s, the facility expanded to provide secondary treatment. The goal of the upgrade was to select a reliable process that would achieve high-rate BOD removal.
The Village of Waterbury Wastewater Treatment Plant (WWTP) is located on the Winooski River floodplain, which poses challenges from significant flooding during the spring runoff and storm seasons to strong algal blooms in late spring.
As part of its Long Term Control Plan to reduce combined sewer overflows (CSOs) to the Merrimack River, the City of Nashua, NH constructed a new Screening and Disinfection facility (SDF) to reduce untreated discharges of CSOs to the Merrimack River.
The City of Hannibal, Missouri, sought a cost effective disinfection technology to meet upcoming National Pollutant Discharge Elimination System (NPDES) permit. Read the full case brief to learn how the full-scale test confirmed that VigorOx WWT II is a cost effective solution for this plant to achieve the disinfection goals.
The City of St. Helena, CA, uses a municipal wastewater system with aerated lagoon and an average flow rate of 0.5 million gallons per day. The performance of existing chlorination process becomes less effective during some periods of summer and fall months, and the city sought a cost effective technology that could provide more stable disinfection performance over a broad range of pH conditions and could easily retrofit the existing system.
The Valley East Wastewater Treatment Plant (Sudbury, Ontario, Canada) hired an engineering firm to evaluate three disinfection options including chlorination followed by dechlorination, ultraviolet (UV) light irradiation and VigorOx WWT II. Read the full case study to learn more.
Wastewater treatment plants are required to disinfect effluent prior to discharge in order to destroy any pathogenic organisms present and minimize public health concerns.
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.
A refinery needed to upgrade the wastewater treatment system to prepare for expected changes brought about by the use of a new crude feedstock with elevated concentrations of TDS and conductivity. Veolia Water Technologies supplied an AnoxKaldnes Moving Bed Biofilm Reactor (MBBR) treatment system to reduce the BOD and ammonia in the effluent.
Pasteurization Technology Group (PTG), innovator of the only wastewater disinfection process that creates renewable energy, is exhibiting its technology to water and wastewater professionals attending this year's 86th Water Environment Federation's Annual Technical Exhibition and Conference (WEFTEC), held in Chicago.
In many parts of the world, the only way to make germy water safe is by boiling, which consumes precious fuel, or by putting it out in the sun in a plastic bottle so ultraviolet rays will kill the microbes.
De Nora Water Technologies will showcase its industry-leading water and wastewater treatment solutions at the WEFTEC Technical Exhibition and Conference in Chicago from 27 to 30 September at booth #631.
Xylem Inc., a leading global water technology company focused on addressing the world’s most challenging water issues, has introduced new performance-enhancing Wedeco Ecoray Upgrade Kits that can reduce the energy consumption of an ultraviolet (UV) disinfection system by up to 30 percent*.
Iranian researchers from Semnan University designed a photocatalyst with high efficiency and rate to eliminate organic pollutants at laboratorial scale to obtain an optimum water and wastewater purification system.
AdEdge Water Technologies announced recently that it now supplies Bayoxide© E33 media for arsenic water treatment systems in any size community.
Her Majesty’s Ambassador to the Kingdom of Morocco, HE Mr. Clive Alderton, recently toured Biwater’s turn-key wastewater project in Aourir while under construction.
The City of Oceanside’s “Pathogen Removal Study” was recognized at the White House Water Summit held on March 22 to commemorate World Water Day.
The power industry will buy 20 percent of the water treatment chemicals purchased by industries around the world in 2015. This is the conclusion of the McIlvaine Company in its Water and Wastewater Treatment Chemicals: World Market.
With accelerating global concerns about the need for water and air purification solutions, the International Ultraviolet Association (IUVA) announces the IUVA 2016 IUVA World Congress & Exhibition, January 31 to February 3, 2016 in Vancouver, Canada.
Sterling Construction Company, Inc. (NasdaqGS:STRL) (“Sterling” or the "Company”) recently announced that Myers & Sons Construction (“Myers”), was awarded a $21.7M wastewater treatment facility project in Malibu, California.
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.
RWL Water, a global leader in water, wastewater and reuse solutions and Química Apollo, one of the leading Mexican companies in chemical treatment services to the oil and gas, power and general industries, are pleased to announce the creation of a joint venture in Mexico.
Ozone treatment efficiently removes many micropollutants contained in wastewater, but in some cases, it can lead to the formation of toxic byproducts.
MIOX Corporation, the industry leader in on-site chemical generation technology, announces it is an ISO 9001:2008 Certified Company. MIOX designs and manufactures equipment that generates oxidant based chemicals on demand.
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.
Ozoniers.com, a brand of Qingdao Danjia Machinery, is solely into wastewater treatment research and development.
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.