Carollo Engineering Achieves Milestones in UV Disinfection in 2005
CAROLLO ENGINEERING ACHIEVES MILESTONES IN UV DISINFECTION IN 2005
Boise, ID -- Carollo Engineers, specialists in water and
wastewater engineering, continued its leadership position in drinking
water UV disinfection by achieving several milestones in 2005.
UV Validation Facility
Carollo
has completed the tenth large-scale UV reactor validation at its test
facility at the City of Portland, Oregon’s, South Shore Well Field.
Carollo’s facility has provided leadership in validation, developing
new test microbes and UV-absorbing chemicals for optimized validation
and developing standardized UV dose-monitoring algorithms for accurate
and efficient regulatory compliance. The facility, open to all
interested municipal utilities and UV vendors, has conducted over 800
challenge tests at reactor flow rates as high as 42 million gallons per
day (mgd) and UV transmittance values ranging from 70 to 98 percent.
This tenth reactor testing marks a milestone in the success of the
testing facility and ensures that cities seeking large-scale reactor
validation can comply with the Long-Term 2 Enhanced Surface Water
Treatment Rule.
USEPA UV Disinfection Guidance Manual
The
USEPA contracted Carollo Engineers to write key sections of its UV
Disinfection Guidance Manual (UVDGM), including all chapters and
appendices on UV fundamentals, validation testing, pilot-scale and
demonstration-scale testing, and major portions of the chapters on
design, operation, and maintenance. Carollo’s leadership in UV
technology has positioned the firm as the leading consultant in this
domain and justifies its critical role in the development of the UV
disinfection language for the Stage 2 Microbial/Disinfection By
Products Rules. Carollo is in the process of finalizing the Validation
sections of UVDGM in response to stakeholder feedback. Publication is
expected in February 2006.
AwwaRF Knowledgebase Project
Carollo
is the principal investigator on the research team conducting the Awwa
Research Foundation’s (AwwaRF) UV Knowledgebase Project. This project
is the seventh AwwaRF project with a UV disinfection focus awarded to
Carollo over the last seven years. The Knowledgebase Project will
collect and analyze data on the design, validation, performance, costs,
and lessons learned from over 145 installed UV systems at municipal
utilities across North America. The research team will develop
standard methods for evaluating and troubleshooting UV systems
performance and answer the important questions facing utilities,
regulators, and engineers on UV system implementation. A final report
will be forthcoming in 2007. Interested Utilities with installed UV
disinfection systems are welcome to contact Carollo to participate in
this project.
Carollo begins 2006 poised to continue its
leadership position in drinking water UV research, regulations,
validation, and design.
Carollo Engineers, P.C. is a leader in
water and wastewater planning, design and construction management.
Founded in 1933, the environmental engineering firm has successfully
completed more than 15,000 public sector projects and is highly
respected for its attention to client service and commitment to
quality. Ranked as one of the nation's top consultants by the
Engineering News Record and the largest firm dedicated exclusively to
water and wastewater treatment services, Carollo Engineers maintains 22
offices in 11 states.
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