Modern Pumping Today November 2024 - 14

WATER & WASTEWATER FOCUS
creation and integrity of polymer
chains requires a constant stream of
polymer into the dissolution stage,
which can be achieved by using a
low pulsation pump.
If condensation gets into the source
tank, then polymers can agglomerate
together and block the valves of
some pumps, such as diaphragm
pumps. This plugs the discharge
of the pump and can cause it to
breakdown. This can be avoided
completely with peristaltic pumps,
which require no valves to operate.
URBANIZATION
As well as the variety of different
chemicals in wastewater treatment
providing dosing challenges, the
wastewater industry must contend
with external factors. Urbanization
means more people are living
closer together in towns and cities,
increasing the amount of municipal
wastewater in one area. The resultant
wastewater means bigger wastewater
treatment works with larger
processing systems are needed.
Therefore, wastewater treatment
providers require more powerful
pumps with high flow rates and low
pulsation to increase efficiency and
meet demand. While diaphragm
pumps meet the capacity
requirements, they can only offer low
pulsation when operated at low flow
rates. Instead, plant managers should
opt for a peristaltic pump that offers
low pulsation even at high flow rates.
RISING TO THE CHALLENGE
After calls from plant managers
for more powerful and adaptable
pumping equipment that enables
accurate, flexible and highcapacity
dosing, the Qdos H-FLO
was designed. The pump is
capable of flow rates up to 600
liters per hour and can handle
pressures up to 7 bar via a range of
interchangeable pump heads. The
different pumpheads enable the
pump to be used in a wide range
of wastewater applications and
allow plant managers to respond
quickly as treatment processing
requirements change.
The Qdos H-FLO has a pressure
sensor that detects leaks and
blockages. The pump stops before
the system becomes damaged and
alerts the operator with diagnostic
feedback. In addition, all of the
chemicals are safely contained within
the pumphead, preventing operator
exposure. If there is a problem, the
pumphead can just be changed.
The twin-tube technology provides
extremely low pulsation, with an
offset rotor design protecting
pipework integrity and providing
consistent chemical supply
compared with diaphragm pumps
delivering similar flow rates. Unlike
diaphragm pumps, the Qdos H-FLO
has no valves, eliminating the
issue of valves becoming stuck or
blocked. In addition, the pump has
a high accuracy within 1 percent,
which prevents chemical waste and
saves costs.
Wastewater treatment providers
face a variety of operating
challenges, including handling a
wide range of chemicals, meeting
high demand, and becoming
more sustainable. However, with
the correct pumping technology,
wastewater plant managers can
ensure their operations run efficiently,
accurately. and safely.
Adeel Hassan is product manager at
Watson-Marlow Fluid Technology
Solutions.Watson-Marlow Fluid
Technology Solutions (WMFTS) is
a world leader in manufacturing
niche peristaltic pumps and
associated fluid path technologies
for the life sciences and process
industries. WMFTS is a wholly
owned subsidiary of Spirax-Sarco
Engineering plc, with operations
in forty-three countries. For more
information, visit www.wmfts.com.
14 | NOVEMBER 2024
MPT
WWW.MPTMAG.COM
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Modern Pumping Today November 2024

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