Envco – Environmental Equipment

For remediation sites with power limitations or where immediate response is needed, the POD Skimmer is an excellent choice. It’s based on our highly successful FAP™ Plus Skimming System and incorporates many of the same proven elements.

The POD Skimmer ships partially assembled and can be fully operational using either CO2 or solar power within minutes. This reduces the need for permits and trenching and saves money and time. When using CO2 as a power source, the POD Skimmer takes up very little space, making it an excellent choice for locations where a smaller foot-print is needed

Operation
(TR-610)
POD Skimmer model TR-610 uses a 42-in auto compensating, product-only skimmer that is attached to the top of the pump. LNAPL from the skimmer feeds into the pump. As the pump chamber fills with product, the internal float shifts, opening the air valve to cycle the pump. The POD Skimmer optimizes the use of compressed gas because the pump only cycles when full. When the skimmer is lowered into the well and free product thickness exceeds 5 inches, the product will flow into the pump
through the product bypass float above the hydrophobic filter. In these conditions, the POD Skimmer is capable of recovering up to 100 or more gallons per day.

When product thickness is less than 5 inches, the product passes through an oilophylic/hydrophobic filter. The rate at which the product can pass through this element depends on the product thickness, viscosity and temperature. Gasoline at room temperature will flow through it at approximately 40 gallons per day.

(TR-611)
POD Skimmer model TR-611 operates similarly to the TR-610 but with the following differences. The unit has to be operated in 4-inch or larger wells due to the diameter of the product density float. The unit does not use a hydrophobic element and will remove product to an approximate thickness of ¼ to ½ inch. The specific gravity of the product density fl oat can be adjusted to minimize the product thickness.

• The POD Skimmer uses Poplet non-leak air and exhaust valves.
• The valves are assisted by a magnet to provide a positive shift in all conditions.
• The valves are self cleaning and will operate in 40-micron filtered air conditions. Dry air is not
• required.
• The POD Skimmer will recover only product when properly installed.
• POD Skimmer model TR-610 requires only 52 inches of well depth below the product to operate and only 39.5 inches of well depth for model TR-611. Each pump cycle discharges approximately 5 oz of product.
• When the skimming system is operated on bottled CO2, the recovery rate at 60 feet of discharge head is 100 gallons of recovered product per 4.0 lb of CO2. The current price of CO2 varies from $0.40 to $0.70 per pound, therefore the cost to recover a gallon of product at this depth is $0.02 to $0.03.
• System includes a cycle/pulse counter to calculate the volume of product recovered from each pump.
• 42-in auto-compensating skimmer travel that removes product to a sheen (Model TR-610).
• The skimmer is furnished with convenient push-to connect fittings.
• The product density fl oat can be adjusted by adding or removing weights to minimize product thickness in the well (Model TR-611).
• Using CO2 produces no objectionable noise.
• Using CO2 will prevent the freezing of compressed gas supply lines.

Pump/Skimmer Construction
Pump:
Pump head body, bottom, and center tube: 304 and 303 stainless steel
Check valve balls and O-rings: Viton®:
Pump float: Ebonite
Fittings: Brass and nickel-plated brass
Magnets: N-40 nickel-plated rare-earth
Valves: Nickel-plated brass with Viton seals

Skimmer:
Tube and centralizers: 304 and 316 stainless steel
Density float: UHMW
Product by-pass float: Ebonite
Product discharge, air, and exhaust lines: Nylon®
Shimmer hose: Urethane
Air and discharge fittings: Brass and nickel-plated brass

Assembled Length (pump / skimmer) 97 (in)
Assembled Weight: 8 (lb)

Ordering Information
TR-610 POD Skimming System,(Includes pump, skimmer, spanners and cycle counter)
TR-611 POD High Viscosity Skimming System,(Includes pump, skimmer, spanners and cycle counter)