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Lagoons & Catch Pit Equipment

On many refinery sites, it is common for tank bottoms to be transferred to on-site lagoons and pits. This enables owner/operators to free up vital storage space otherwise wasted. 


Once the material is transferred to the lagoons/pits it can be held until the owner/operator is ready to deal with it. Typically the material is left to settle so any oil floats to the top where it can be drawn off. The issue of space arises again as more material is pumped into the lagoon/pit. At some point the sludge will have to be dealt with. It is not uncommon for the sludge to be removed from site as hazardous waste, therefore, incurring a hefty disposal cost. What most owner/operators don't realise is the value of the oil entrained in the sludge.


In response to growing demand, NESL designed and built the NESL



The Lagooner vehicle is lowered into the lagoon/pit where it mixes and then pumps the slurry to a sludge treatment plant such as the ST150.


The complete system consists of a single 20’ double door container with a built in electro-hydraulic power pack, Lagooner vehicle, umbilical, storage reel and control stand.

The Lagooner comes complete with a choice of on-board lobe pump with a pumping capacity of eighty-two cubic meters per hour *.  For the removal of heavy sludge from the lagoon the unit is fitted a with rotating macerator front end which is interchangeable with other types of units.

The attached umbilical comes with an anti-static outer sheath as standard and houses the hydraulic lines used to control the unit. The discharge hose connection can be to the client’s specification and ranges from a fire hose to layflat.

Simple hydraulic hand controls are used to operate the unit and once the unit is in place it is systematically driven around the lagoon in a set pattern to ensure total coverage.

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