CASE STUDY: LEACHATE SOLAR PUMP
SKID MOUNTED SOLAR PUMPING SYSTEM
BREEN HOLDINGS
OPERATES AN INERT
WASTE CLASS II LANDFILL
FACILITY AT CAPTAIN COOK
DRIVE, KURNELL, LOCATED
IN THE SOUTHERN
SUBURBS OF SYDNEY,
WHICH SUMPS TO AN
EVAPORATION POND
LOCATED 50 METRES
AWAY.
CHALLENGES
3
The Kurnell site required capability to pump 5m /day of leachate collected in
a sump to an evaporation pond located 50 metres away. The leachate sump
was designed with only 300mm depth and a requirement to pump down to
100mm. No power is available at the site and there is a requirement to pump
24/7 in the event of heavy rainfall.
THE LANDFILL SITE
COLLECTS LEACHATE FOR
DISPOSAL AND LOOKED
FOR AN INNOVATIVE
SOLUTION TO THIS
PROBLEM. The system included 400W PV array, control circuit for automatic conversion
to generator in the event of low irradiance, a solar trickle charger for
generator battery and manual priming pump. All equipment was mounted in
transportable, standalone skid.
SOLUTION
The LORENTZ PS600HR7- 2 Leachate Solar Pumping System with Viton
3
Stator was proposed with capability to pump up to 13 m /day with 5 metre
TDH.
A LORENTZ PS Communicator was installed to provide remote monitoring
of pump performance and leachate levels.
A mounting arrangement for the top of the 300mm sump was provided along
with a special pump shroud was designed for the helical rotor pump to allow
pumping to 100mm using “Bell Siphon” effect. Internal Well Probes and
Level Transducer control the on/off operation of the pump based on the level
of leachate in the sump.
RESULT
3
The system is producing 1.5m /hour with full irradiance and exceeding the
expectations of the client. They plan to test pumping the leachate a further
350 metres to additional evaporation pond in the near future.