IEG Compact Vacuum Stripper™

IEG’s Compact Vacuum Stripper™ (IEG CVS 1000™) is an innovative, system for the removal of volatile organic compounds from contaminated groundwaters.

Highly efficient in its design and operation, the system is capable of receiving and treating up to a maximum of 15 m³/h of highly contaminated water, with a VOC removal efficiency of up to 99.5%.

The key element of the system is a patented IEG two-stage stripping reactor located within a sealed treatment chamber. During operation, a low negative pressure is applied by means of an explosion-proof blower to create a small vacuum within the treatment chamber.

An air inlet tube allows atmospheric air into the treatment chamber, which flows with the contaminated water, reducing the vacuum pressure and flushing through the stripping reactors to remove the volatile components from the water.

During treatment, contaminated water is pumped into the treatment chamber by a pump and transported via a distributing pipe to the uppermost of two coaxial stripping trays. Water flow is enhanced by a series of guide plates located on the upper stripping tray.

Partially treated, the water descends into the second stripping tray where the cleansing process is repeated. The VOC´s are desorbed from the contaminated water via the stripping air and are removed with the off-gas and adsorbed on to granular activated carbon contained within a high efficiency patented IEG GAC-Sorb™ system.

The treated water drains along contained flow channels within the system and is pumped to a separate GAC system (if required) by means of a liquid discharge pump.

The IEG CVS 1000™ system operates continuously. For cleaning, the stripping trays can be removed separately.

Specification

Maximum influent flow rate 15 m³/h

Stripping efficiency 98% to 99.5% (for most VOCs)

Off-gas air volume approx. 800 m³/h

Required space 1.4 x 3.0 m

Height 2.2m

Weight of Equipment approx. 1,250 kg (in operating state)

Operating noise level approx. 80dB(A) (undamped)

Power Take-Up approx. 4kW

Advantages

• The system produces dry off-gas (negative pressure stripping does not require conditioning of the off-air).

• Dry of-gas permits optimal use of the adsorption capacity of activated carbon.

• Easy installation, easily moved.

• Modular construction design.

• Maintenance can be completed faster and less costly (no tower packing necessary, low profile).

• No “winterising” necessary by placing in an insulated enclosure.

The IEG Compact Vaccum Stripper™ method is a process patented by IEG.