[CPEO-MEF] PERCHLORATE: New Fluidized Bed Reactor in Henderson, NV

[Lenny Siegel <lsiegel@cpeo.org>]

News Release
Envirogen
October 14, 2013

Envirogen Announces Start-Up of Large Fluidized Bed Reactor System  
for Perchlorate Remediation at Nevada Industrial Site
Proven, “green” biological treatment technology answers need for  
treatment of perchlorate-laden groundwater in Henderson, Nevada

Envirogen Technologies, Inc. (Envirogen) announced the successful  
start-up of a large-scale fluidized bed bioreactor (FBR) system for  
American Pacific Corporation (AMPAC), to achieve the biodegradation  
of perchlorate and other constituents from groundwater in the area of  
a former manufacturing facility in Henderson, Nevada. The 1.2 million  
gallon per day (MGD) capacity system replaces a smaller biological  
system that had been in service since 2006, and utilizes Envirogen’s  
patented FBR technology in a custom configuration to reduce influent  
concentrations of perchlorate of up to 500 ppm to non-detectable  
levels prior to surface discharge.

According to Robert Stark, South Region Vice President for Envirogen,  
the AMPAC installation underscores the rising prominence of FBR  
technology, both for perchlorate remediation and as a sustainable,  
cost-effective tool for a wide range of groundwater treatment  
challenges. “This site presented us with a high-load scenario coupled  
with the need for trouble-free performance and a low operational  
burden,” Stark explained. “With this FBR installation, we were able  
to meet AMPAC’s target treatment goals for perchlorate as well as  
chlorate and nitrate, while fine-tuning the equipment to provide them  
with the lowest-cost performance possible. Today, we are pushing FBR  
technology to meet new challenges for treatment efficiency and cost- 
effectiveness. Its versatility in handling multiple constituents and  
varying flow characteristics also points to its potential to treat  
other contaminants, such as selenium, hexavalent chromium or  
chlorinated solvents. As sustainability becomes an important element  
in treatment technology selection, we feel strongly that the use of  
the FBR in groundwater remediation applications will grow,” he  
continued.

...

For the entire release, see
http://envirogen.com/news/envirogen-news/envirogen-announces-start-up- 
of-large-fluidized-bed-reactor-system-for-perchlorate-remediation-at- 
nevada-industrial-site

You may need to copy and paste the link.

--

Lenny Siegel
Executive Director, Center for Public Environmental Oversight
a project of the Pacific Studies Center
278-A Hope St., Mountain View, CA 94041
Voice: 650/961-8918 or 650/969-1545
Fax: 650/961-8918
<lsiegel@cpeo.org>
http://www.cpeo.org

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