Filtration media shown to effectively remove arsenic Metals & Arsenic Removal Technology Inc (MARTI), a subsidiary of US company HydroFlo Inc, has confirmed original test results for its ARTI- 64 media, which effectively removes contaminants – such as arsenic, copper, lead, zinc and sulphates from water. The original laboratory results were provided by the University of Wyoming, US, when HydroFlo initially acquired the technology during August 2004. Once filtered through the media, it was found that arsenic levels were undetectable. The latest laboratory data was furnished by Environmental Chemist Inc. These results actually exceeded the outcomes of the initial tests, reports the company. Environmental Chemist analysed the ARTI-64 compound for the removal of total arsenic, copper, zinc and lead. The data demonstrated that total arsenic levels were taken from 7.95 parts per million (ppm) to 0.6 parts per billion (ppb), making arsenic levels virtually undetectable. Data also revealed that lead was removed from the contaminated water. ARTI-64 media is scheduled to be used in water filter cartridges produced by Swiss company Wal SA for household. Technology news 14 Filtration+Separation April 2005 Zenon Environmental Inc has been selected to supply what it claims is the world’s largest membrane bioreactor. According to Zenon, the ZeeWeed MBR (membrane bioreactor) supplied to King County, Washington, USA, will treat an average-day flow of approximately 144,000 m 3 of municipal sewage, or 38 million gallons per day (mgd) – with peak flows up to 204,000 m 3 or 54 million mgd – and serving over 100,000 households. Design of this greenfield plant is currently underway with construction expected to begin in 2006, and completion scheduled for 2010. The new Brightwater Wastewater Treatment Plant will be the first membrane plant owned by King County, as the existing two sewage treatment plants do not use membrane technology. King County’s Wastewater Treatment Division currently serves 18 cities, 16 local sewer agencies and more than 1.4 million residents in King, Snohomish and Pierce counties. Zenon chosen to supply “world’s largest membrane bioreactor” Zenon’s ZeeWeed MBR combines clarification, aeration, and filtration into one process step. According to Zenon, the process produces high-quality effluent that “meets or exceeds the world’s most stringent regulations for discharge or reuse”

Filtration media shown to effectively remove arsenic

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Filtration media shown toeffectively remove arsenic

Metals & Arsenic RemovalTechnology Inc (MARTI), asubsidiary of US companyHydroFlo Inc, has confirmedoriginal test results for its ARTI-64 media, which effectivelyremoves contaminants – such asarsenic, copper, lead, zinc andsulphates from water.

The original laboratory resultswere provided by the Universityof Wyoming, US, whenHydroFlo initially acquired thetechnology during August 2004.Once filtered through the

media, it was foundthat arsenic levelswere undetectable.The latest laboratorydata was furnished byEnvironmentalChemist Inc. Theseresults actuallyexceeded theoutcomes of theinitial tests, reportsthe company.

EnvironmentalChemist analysed the

ARTI-64 compound for theremoval of total arsenic, copper,zinc and lead. The datademonstrated that total arseniclevels were taken from 7.95 partsper million (ppm) to 0.6 parts perbillion (ppb), making arseniclevels virtually undetectable. Dataalso revealed that lead wasremoved from the contaminatedwater.

ARTI-64 media is scheduled to beused in water filter cartridgesproduced by Swiss company WalSA for household.

Technology news14Filtration+Separation April 2005

Zenon Environmental Inc hasbeen selected to supply what itclaims is the world’s largestmembrane bioreactor.

According to Zenon, theZeeWeed MBR (membranebioreactor) supplied to KingCounty, Washington, USA, willtreat an average-day flow ofapproximately 144,000 m3 ofmunicipal sewage, or 38 milliongallons per day (mgd) – with peakflows up to 204,000 m3 or 54million mgd – and serving over100,000 households. Design ofthis greenfield plant is currentlyunderway with constructionexpected to begin in 2006, andcompletion scheduled for 2010.

The new Brightwater WastewaterTreatment Plant will be the firstmembrane plant owned by King

County, as the existing twosewage treatment plants do notuse membrane technology. King

County’s Wastewater TreatmentDivision currently serves 18 cities,16 local sewer agencies and more

than 1.4 million residents inKing, Snohomish and Piercecounties.

Zenon chosen to supply “world’slargest membrane bioreactor”

Zenon’sZeeWeed MBRcombines clarification,aeration, and filtration into oneprocess step. According to Zenon, the processproduces high-quality effluent that “meets or exceeds the world’s most stringent regulations for discharge or reuse”