The fertilizer made with the reclaimed
phosphorus crystals is not water-soluble,
which means it won’t generate harmful
runoff to nearby streams. “What once
was waste is now a revenue-generating
product,” Shaw said. “It’s a win-win.”
His team also recently completed an
assessment of the feasibility of a simi-
lar project for Medina, Minn., to build
a $35 million anaerobic digester that
could produce sludge for fertilizer and
compost as well as methane for the op-
eration of two generators.
The environmental benefits and long-term revenue generation opportunities
from these kinds of projects are clear,
though they require a lot of capital investment, which can be a hard sell for
many organizations with limited budgets and skeptical rate payers. “Even
utilities in the most well-off communities will never have the level of revenue
they need to tackle all the work that
needs to be done,” said George Hawkins, general manager of the District of
Columbia Water and Sewer Authority.
Pipe Lining to Prevent Lead Release
BY AMANDA STROUSE
The national lead leaching issue is a major concern not only for the gen- eral public but also for the municipalities that have to pay for water testing and pipeline repairs. Closing down streets and destroying
landscape to dig out pipes is incredibly expensive,
destructive, disruptive and time-consuming. The
good news for utilities is that there is a better way
to bring lead leaching into U.S. EPA compliance
without having to tear out the pipes: in-place pipe
A recent study by the Water Research Foundation (Report 4351) found that pipe lining and
coating technologies, using a non-destructive in-place process, can effectively reduce or eliminate
release of lead from lead service lines (LSLs). The
many benefits of pipe lining also include a much-re-duced project timeframe, little to no destruction of
streets or landscape, no traffic or parking disruptions and a long-term solution against lead leaching, leaks and other common problems. WW
Amanda Strouse is on the marketing and public relations team for pipe-lining technology innovator, ACE
DuraFlo, the creator of the patented ePIPE epoxy coating system. For more information, visit epipepinfo.com.
Lead service lines being coated in Rhode Island.
A 12-mm lead service line, coated in
place using ePIPE coating.
Stickney’s phosphorus recovery facility, which
includes Ostara Pearl reactors and the product