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| Muilti-Phase Extraction (MPE) Pilot Studies |
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Advantages:
 Overview:In order to design a Dual-Phase (DPE) or Multi-Phase Extraction (MPE) remediation system for a contaminated site, the engineer must know the vacuum and flow requirements to extract contaminants from the ground and the hydrological characteristics of the groundwater. Typically, DPE pilot studies are conducted to make this determination. During a pilot test increasing vacuums are applied to test wells then vacuum and flow measurements on surrounding wells are taken to determine the impact at various operating levels. Water is removed from the well either by vacuum or pumping, until a steady state is reached to determine the groundwater recovery rate. The water recovery rate is used to determine the water treatment design flow rate for the remediation system design.
 ProAct has many mobile DPE systems capable of providing high vacuums and able to treat water generated from the test. Systems are available with there own power generator. These units are available for short or long term rental.
 The process of extracting contaminated vapors from the ground requires the creation of a negative atmosphere within the soils to allow the contaminants to volatilize and travel through the soils to the extraction location. The two key aspects of this process are vacuum (negative atmosphere) and flow rate (transport the contamination out of the ground). Soil type and density determine the vacuum requirements necessary to create air flow through the soils. Typically "tight" soils (mostly clay) require a blower that is capable of yielding high vacuums and low air flow. "Loose" soils (mostly sand/gravel) require a blower that is capable of yielding low vacuums and high air flow. The pilot study will define these characteristics.
 Types of Systems Used:
At ProAct, we are frequently asked "which system would be best for the pilot test at the project site?" Regenerative blowers are typically used for high air flow and low vacuum requirements (gravel soils). Positive Displacement blowers are typically used for Sandy to Sandy/Clay soils and Liquid Ring Pumps (LRP)/Rotary Claw blowers are used for tight clay soils. Generally, most pilot studies use positive displacement, LRP and rotary claw blowers. To get an idea of vacuums, regenerative blowers typically operate from 0 - 4" Hg, Positive displacement blowers operate at 0 - 12" Hg, Rotary claw blowers operate at 0 - 22" Hg and LRP blowers operate at 20" - 29" Hg. Please note that the LRP blowers can be used for lower vacuum requirements however an artificial vacuum must be created on the blower so it runs at it's optimum conditions. ProAct has all types of blowers available for pilot studies and long term remediation.     If you are in need of a remediation pilot study, ProAct is your answer. At ProAct, we pride ourselves in our highly trained and experienced staff , and our complete turn-key philosophy in seeing the project from the beginning to end. We also provide field support for any remediation projects. We have all the auxiliary equipment you need for the pilot study, anemometers, magnehelic gauges, pressure gauges, photo ionization detector (PID) meters, Quad gas meter, hose, carbon drums, well head connections, etc. ProAct's experienced environmental specialists will contact you to pre-plan the pilot test and make sure the right equipment and instrumentation is brought to the project site. As mentioned earlier, ProAct will provide a project report summary at the end of the project .
   Safety First: Safety is the priority on every job site. ProAct has an excellent OSHA Safety record. Our staff is first aid and 40 hour Hazwoper trained and participate in medical monitoring, drug, and alcohol testing. In an ongoing effort to promote safety, we hold daily risk assessment meetings and discuss the site activities for the day, to ensure we maintain a safe work environment.
Click on the links below to learn more about each system used Dual-Phase Extraction Internal Combustion Engine For Immediate Assistance: Click on Contact Us to find a sales representative who can assist you, with your need. You can Also, contact us at ProAct's headquaters at (888) 993-1179. | ||
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