SITE INFORMATION AND CORRESPONDENCE FILE 1

Home Browse Search

S %off MPX (Bioslurp) System Design Our MPX remedial system design maximized safety, flexibility, capability, mobility, modularity expandability, low maintenance and active alarming. The MPX pump is connected to collection system which distributes the vacuum to nine wells and collects the mixture of vapors, liquid and groundwater from those nine wells_ Each well has a MPX wellhead which consists of valving and an extraction tube. The collected multiphase contaminant is then separated into vapor,water and LNAPL for disposal. The MPX system consists of four major elements. These are the: • Containerized MPX treatment center; • Collection piping system; • Effluent disposal systems; • MPX wellheads. Containerized MPX Treatment Center The MPX treatment center was built into a 6.1 in (20 ft) ocean going container which was purchased and refurbished to permanently house the system. Building the treatment system into a standard cargo container allowed it to be factory pre-tested and then shippable anywhere in the world. The MPX treatment center was built by Carbtrol in Westport Connecticut, shipped by rail to Portland, Oregon where it was loaded onto a ship bound for Tokyo Harbor. Once it cleared customs in Tokyo, the treatment center was trucked to the site and placed on pre-formed footings: The system features two main compartments with separate entry for each. The explosion-proof (XP) compartment houses all the pumps, storage and treatment equipment. It is accessed by two cargo doors in the front of the container. All fluid and vapor hookups are on this side. The other compartment is the control room. It contains the control panel, breaker box and telemetry unit and is accessed by a side personnel door. All electrical and telephone connections are made to this side. The two sides are separated by a two hour fire wall and intrinsically safe (ISC) circuit breakers. Details on the system schematic and layout are presented in figures 1 and 2. The MPX treatment center consisted of the following major components: 1. 7.2 hp liquid ring pump capable of drawing a vacuum of up to 25" Hg with a rated capacity of 15 gpm of liquid, or 100 SCFM vapors; 2. Air/Water separator and seal water system; 3. Oil/Water separator; 4. 946.25 1(250 gal)product storage tank; 5. Transfer pump with pump sump; 6. Bag filter, 7. Dual inline 90 kg(200 Ibs) liquid phase granular activated carbon(GAC)units; 8. Dual inline 90 kg(200 Ibs)vapor phase granular activated carbon(GAC)units; 383