Indirect Thermal Technology - Waste Recycling

Pure Earth Recycling (NJ), Inc. operates its own MX-1500 Centrifuge System in conjunction with the MX-2000 Thermal Soil Dryer.

The Pure Earth Recycling facility is fully permitted to accept both liquid and solid hazardous wastes which are contaminated by used or unused petroleum distillates and crude oil. A partial list of wastes which fall into this category include EPA-Listed wastes K048, K049, K050, K051, K052, K169, K170, K171, K172, F037, F038, as well as D018 wastes. While certain acceptance limitations exists, Pure Earth Recycling can readily accept these wastes in either a liquid or solid state.

Our PART B Facility handles recycling programs for characteristic hazardous waste hydrocarbons ranging from petro chemical and industrial separator sludges, to crude stock petroleum tank bottoms.

Technology Description

The Pure Earth Recycling process utilizes key components in various configurations to accomplish waste separation and recovery/recycling. The basic components utilized are as follows:

• MX-1500 Centrifuge System - The MX-1500 Centrifuge System (MX-1500) is a 3-stage, decant-type centrifuge system which employs centrifugal force to facilitate the phase separation of oil/water/solid matrix materials. Through the use of heat and chemical enhancement, the system separates wastes into three distinct phases of oil, water, and "dewatered" solids.
  
  It is designed to generate these following effluents and associated characteristics:
  
  
  • Recovered Oil: Less than 2% BS&W (Basic Sediment and Water) which is returned to commerce to act as an effective substitute for crude oil.
    
    
  • Recovered Water: Less than 50 mg/l TSS (Total Suspended Solids) and less than 50 mg/l TOG (Total Oil and Grease) which is recycled onsite. As an alternative, the water can be discharged, in accordance with the facilities permit, to the local POTW (Publicly Operated Treatment Works).
  
  
  
  • Dewatered Solids: Contain 40% solids by weight, pass the EPA's Paint Filter Test, and are directed to the MX-2000 for further de-watering and de-oiling.
  
  
  
• MX-2000 Thermal Dryer - The MX-2000 system is utilized for the purposes of (1) further reducing the waste volume through water and light oil removal/recovery and (2) the removal of Benzene and subsequent de-characterization of the hazardous waste listing. The MX-2000 Low temperature Thermal Processor (MX-2000) is a natural gas fired, 6 million BTU/hr, thermal desorption system. The system utilizes non-contacting, hollow screw, indirect thermal treatment technology in order to heat wastes from ambient temperatures up to a maximum temperature of 600 degrees F. Through the use of indirect heat and an inert/non-oxidizing processing environment, wastes are heated so as to vaporize and subsequently condense the waste water and light oil fractions.
  
  With a nominal throughput capacity of 5 tons per hour, the system is designed to generate the following effluents and associated characteristics:
  
  
  • Recovered Oil: Less than 2% BS&W (Basic Sediment and Water) which is returned to commerce to act as an effective substitute for crude oil.
  
  
  
  • Recovered Water: Less than 50 mg/l TSS (Total Suspended Solids) and less than 50 mg/l TOG (Total Oil and Grease) which is recycled onsite. As an alternative, the water can be discharged, in accordance with the facilities permit, to the local POTW (Publicly Operated Treatment Works).
  
  
  
  • Treated Solids: Contain 10% water by weight and non-detectable concentrations of BTEX (Benzene, Toluene, Ethyl-benzene, and Xylenes). Depending on the initial waste's source, the solids are either directed to Pure Earth Recycling's onsite direct fired thermal desorber or land disposed of in accordance with all applicable federal and state regulations.