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Eco Action

Intelligently solving wastewater challenges in Victoria

N

orth East Water’s municipal sewer pump station

This is where the system’s flexibility played an

at Jordyn Terrace in Wangaratta, Victoria, is

important role. One of its main hardware elements, the

located within a busy residential area and

pump impeller, is offered in three different materials, to

close to a retirement village. It receives very

adapt to different conditions: Hard-Iron, duplex stainless

challenging wastewater containing a large quantity of

steel and stainless steel.

sanitary items, and other fibrous waste objects, that cause

A high chrome alloy, Flygt Hard-Iron is claimed to

‘ragging’ of the pumps. This resulted in pumps having to

be five times more wear resistant than duplex stainless

be lifted and unblocked twice or three times every week.

steel. In accelerated wear tests, Hard-Iron kept working

In July 2016, North East Water installed Xylem’s Flygt

efficiently and showed minimal wear after pumping water

Concertor system with the aim of resolving this issue and

with a very high concentration of extremely abrasive

delivering clog-free pumping to Jordyn Terrace wastewater

particles. This durability and reliability can save time

pump station.

and money.

“Regular clogging of the pump station was a serious

Waite stated, “The Hard-Iron impeller will ensure that

issue for us,” North East Water Manager Assets and

the current pump performance is maintained for extended

Operations Grant Waite said. “As a result, operation and

periods. In an application like this, with wastewater that

maintenance staff had to leave their daily work schedules

contains a high level of non-biological solids, it is the

to travel to the pump station, unclog

best option.”

the pump and get the station up

The results include:

and running again. In addition to

clog-free

pumping

with

man-power, a maintenance crane

no emergency call-outs since

truck was needed to perform the

installation;

pump lifts, which meant it had to

be taken away from other projects,

less visible material in the sump;

which added further expense to

the repair job.”

maintenance truck and staff — a

a cleaner pump station with fewer

site

visits

by

The team had high hopes in

positive result for North East Water

this new system, as it combines

as well as for residents living in

Flygt’s self-cleaning hydraulics,

the surrounding neighbourhood.

Adaptive-N, as well as intelligent

Flygt Concertor is proof that

functionalities like pump cleaning.

new technologies with sophisticated

This function activates when a

integrated

clogging instance is detected and

wastewater pumping do not require

starts operating the impeller at

more components or complexities;

different speeds and directions to

rather, Concertor is user friendly

remove the debris.

and simple to install, commission

Since the installation, station

intelligence

for

and operate.

managers have reported no

“Since Flygt Concertor has

blockages or clogging issues at the station, as well as

been installed we haven’t experienced any clogging

a cleaner station with less visible material in the sump.

issues at the station, which is a dramatic improvement

Waite said: “We have found Xylem’s Flygt equipment to

to how the station’s old pumps had been running. The

be of excellent quality so we were happy to trial the new

new wastewater pumping system has also had a positive

wastewater pumping system. The trial pump we received

impact on the local community — fewer visits to the

is still running in our station and so far we haven’t had

station by large maintenance trucks and personnel. Station

one single case of clogging.”

managers have also reported that the sump is cleaner

Concertor’s short-term results in Jordyn Terrace were certainly a relief for the station’s operators but their main concern was to find a sustainable solution that can bring peace of mind in the long run.

www.SustainabilityMatters.net.au

as a result,” Waite concluded. Xylem www.xylem.com

Feb/Mar 2017 - Sustainability Matters 19

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Sustainability Matters Feb/Mar 2017  

Sustainability Matters is a bi-monthly magazine showcasing the latest products, technology and sustainable solutions for industry, governmen...

Sustainability Matters Feb/Mar 2017  

Sustainability Matters is a bi-monthly magazine showcasing the latest products, technology and sustainable solutions for industry, governmen...