be focused in part on demonstrating the
ability of biological filtration to maintain a
safe drinking water supply.
Overall, the divergence of opinions and high
level of “don’t know” responses suggests
a need for educational outreach efforts.
The Web-based survey will be followed up
with in-depth phone interviews aimed at
as well as
used to meet
This project will
hold a workshop
in early 2010,
and the report is
expected to be published in mid-2010.
guidance manual, including a tool-box, for
water treatment managers and operators
for monitoring and operating biological
filters (e.g., backwash, special equipment
such as a dechlorination system). The final
deliverable will also outline general design
parameters and principles for managers
and operators to consider when installing
biological filters as new unit processes
or as retrofit
response to this
RFP have been
the project is
expected to start
in the fall.
The top three perceived barriers to
implementing biological filtration,
from a utility perspective, are
the potential public health risks,
lack of full-scale experience,
and permitting and regulations
associated with the technology.
Where Are We Headed?
Anticipating the need of U.S. drinking
water utilities for more guidance on a
comprehensive approach to operate and
manage biological filtration, the Foundation
issued the RFP “Assessing and Enhancing
Biological Filtration” (project #4231) in
March 2009. This project will develop a
North America and internationally have
shown biological filtration to be an effective,
economical, and sustainable drinking
water treatment process with multiple
benefits, there are still many questions to
be answered. The Foundation will continue
to identify and sponsor research in
collaboration with partners and subscribers
that addresses these questions and better
informs water community decisions
concerning biological filtration.