Pumps for tanks cleaning

Suction and cleaning sludge wastewater.

Application: suction and cleaning of tanks containing aluminum processing sludge. In this company, aluminum semi-finished products are produced in three phases: starting from casting to obtaining billets, then many operations are carried out to obtain profiles of various shapes, and finally surface finishing steps are completed with anodization and painting of metal semi-finished product. These operations generate wastewater characterized by chemical aggressiveness and a charge of abrasive metal suspensions. The fluids are collected in tanks and the formation of sludge deriving from the heavy solid suspension precipitation to bottom of tank. 

peristaltic pumps for suction and cleaning tanks arising form processing waste

The tanks cleaning operations and the removal of wastewater are performed by submersible centrifugal pumps, but, as is often happens, the formation of thickeners creates large problems of blockage of submersible pumps making them inefficient. Normally an operator goes down into the tank in order to improve the sludge evacuation process through fluidification operations for the sediment homogenization.

This is big problem because during the emptying operations, the operator works immersed in the fluid mass at the same time as the electric pumps running. The potential risk for the operator is clearly evident (electric shock).

Safety and peristaltic pumps in tanks cleaning operations

It was proposed for the task solution , a self priming peristaltic pump hcp 40 complete with speed variator, due this, machine is perfectly adapted to variable viscosity of the sludge, The pump perform a very high suction capacity and completely isolates the operator from a potential electric shock. Insensitive to dry running, the peristaltic pump does not suffer damage resulting from the discontinuity of liquid inflow, moreover, the resistance to abrasion and chemical aggression is assured by the hose membrane perfectly compatible with the fluid. The absolute safety is guaranteed by the fact that the pump operates on the surface by introducing the only suction pipe moving it in the various points of tanks to obtain a perfect cleaning, as it would happen with a vacuum cleaner. No physical contact between mechanical or electrical parts of the pump with the pumped fluid prevents any risk.

More information on pumps: Hose Carrier HCP 40

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Peristaltic Pumps Hose Carrier for leachate (percolate) aspiration.

Leachate suction pump

peristaltic pump for leachateAn important group engaged in the environmental sector, manages a landfill of solid non-hazardous, leachate or percolate is one of products deriving from the accumulation. The leachate is generated in a natural way by the crossing of rainfall through the layer of waste present in landfills, the result is a fluid from the characteristics extremely polluting, and therefore must be picked up and treated on site by means of a appropriate purification process .

There are different systems for leachate suction, some bore hole submersible pumps inserted in appropriate wells, other systems provide surface self-priming peristaltic pumps  able to aspirate the fluid from the surface. The landfill was designed considering not to apply submersible pumps  type to avoid  maintenance substantial costs in failure or malfunction. In previous experiences it is noticed that whenever it is necessary the maintenance of the submersed pump, it is necessary to remove virtually all installation, raising the pump through its pipe by expensive equipment and specialized personnel.

Leachate has a chemical aggressiveness of a certain importance, variable over time, and is able to put out of order the submersible pumps in short times. In principle are also used for the percolate, pumps designed for clean water or with small modifications of adaptation to percolate , but that, as it was found, do not guarantee duration in time acceptable.

Maintenance and replacement operations are very expensive because they require disassembly total line in the well, as well as the use of suitable equipment such as cranes and lorries, transfers and interventions in specialised workshops with technical staff at high cost. The plant of the landfill was consequently designed for use surface peristaltic pumps, through the realisation of a crowning achievement of picking stations with negative leaf not deep over eight meters.

Peristaltic pump easy solution for percolate.

Various Peristaltic Pumps HCP 50 have been installed to suck the leachate directly from the surface. The high vacuum produced by the peristaltic pump and full compatibility of the machine to chemical aggression in addition to the total insensitivity to dry running, has allowed the achievement full both the targets, operational and economic. The individual pumping stations manitenance cost provides only the replacement of peristaltic hose (once every 2 years). The replacement takes place in the site, quickly, with no  additional costs for operation (an hour) with internal staff at the management company.

The on-site maintenance occurs without remove piping but acting only and exclusively on ground surface, away from the contaminant. The management company has spoken in a very positive manner on the peristaltic pump solution adopted, and proposes the purchase of new peristaltic pump for extensions and other future projects.

More information on the Pump Hose Carrier HCP 50

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