VacuDry - the worldwide leading solution to recover resources from industrial waste
Market position Worldwide leading solutions to recover valuable resources from hazardous wastes and contaminated soils econ's proprietary VacuDry technology uses low heat and vacuum for safe and efficient separation of resources like mercury and hydrocarbons as well as other evaporable contaminants econ s technology is flexible to deal with all typical industrial waste consistencies such as crushed building rubble, soils, landfilled residues, lagoon sediments, sludge, filter & centrifuge cake, spent catalyst, spent active carbon, powder, etc. econ s scope of supply and services includes VacuDry equipment manufacturing, commissioning and operator training as well as rental solutions and joint operations
VacuDry input consistencies Mercury containing wastes and soils Drill cuttings, refinery wastes, tank bottoms Grinding swarf and mill scale sludge Hydrocarbon contaminated soils Oil lagoon sludge and sediments other hazardous wastes econ s technology is flexible and considers typical variations of wastes
VacuDry applications Substances suitable for vacuum distillation by VacuDry : Mercury Hydrocarbons (drilling fluids,crude oil, refinery products) PAH polycyclic aromatic hydrocarbons POP persistent organic pollutants (PCB - polycyclic biphenyls; various pesticides, herbicides and fungicides) CHC chlorinated hydrocarbons Organic lead compounds separated contaminants must have a boiling point < 450 C econ s technology is flexible to separate numerous contaminants
Sludge, filter cakes solid content < 50% Contaminated soils solid content > 50% Sieving unit < 30mm VacuDry process Condensate econ VacuDry Cleaned solids
Boiling points under vacuum VacuDry heating temperature VacuDry product temperature
Temperature [ C] Pressure [mbar(abs)] VacuDry with heavy oily waste M aterial input econ indust ries VacuDry process M aterial output 400 350 300 250 200 150 100 50 0 Heating temperature Product t emperat ure Pressure Wat er evaporat ion 0 15 30 45 60 75 90 105 120 135 150 165 180 195 210 225 240 255 270 285 300 Time Evaporation range f or hydrocarbons bet ween C22 and C36 Maximum evaporation range of hydrocarbons up to C40 Evaporation range f or hydrocarbons bet ween C10 and C22 1000 950 900 850 800 750 700 650 600 550 500 450 400 350 300 250 200 150 100 50 0
Vacuum unit VacuDry working principle Input material Vapour filter Warm air Clean exhaust Active charcoal filter Condensation unit Cooling unit Thermal oil heating unit Vacuum dryer Nitrogen supply Cooling bunker Water treatment Clean exhaust Warm air Solidification mixer Cooling unit Chiller for VOC condensation Solids output Water & contaminant condensate output
Advantages of VacuDry Min. 4 x higher energy efficiency compared to other desorber types (e.g. rotary kilns) Lowest process emissions below 1,000 m³/h due to vacuum operation Worldwide EPA acceptance guaranteed, even in neightbourhood to residential areas > 99 % resource recovery of hydrocarbons, mercury, etc. Only desorber type for hydrocarbons up to C 40 and mercury separation with ATEX (explosion protection) certificate, approved by German TÜV Batch wise operation with full process control
R&D: Test centre Gain data for calculation of profitability (e.g. throughput capacity; energy consumption; evaluation of the output) Determine relevant data for local environmental approval procedures (e.g. analysis of exhaust emissions) Condenser Activated carbon filter Evaporation unit Vacuum pump Condensate Vessel
VacuDry for contaminated soil Feeding material: Contamination: Plant design: Feed material consistency: Feeding system: Equipment: Indirect heating: Throughput capacity: Soil, building rubble, filter cake soil washing Mercury, PAH and others Stationary. modular 10 to 50 % moisture Belt conveyor 2 x VacuDry 12,000 Remoistening and solidification mixer SolidMix 1,500 400 C / thermal oil 4 t/h Start up: 2011
Mercury contaminated site Production hall; will be demolished! 10.000 t building rubble will be processed in the VacuDry plant Storage site for contaminated soil 60.000 t contaminated soil will be excavated and cleaned
Mercury contaminated soil
Plant overview Cement silo Evaporation unit 1 Evaporation unit 2 Vapour filter Solidification unit Discharge unit Cooling unit Operating resources & control unit
VacuDry for refinery waste Feeding material: Contamination: Plant design: Feed material consistency: Feeding system: Refinery waste, contaminated soils Crude oil, various hydrocarbon fractions Semi-mobile < 50 % solids (pumpable sludge) Piston pump, 30 m³ bunker Equipment: VacuDry 12,000 Remoistening mixer SolidMix 1,500 Indirect heating: Throughput capacity: 400 C / thermal oil 1.5-2 t/h Start up: 2012
Refinery waste & oil sludge
Plant overview Vapour filter Evaporation unit Condensation unit Discharge unit Cooling unit
VacuDry for various sludges Feeding material: Contamination: Plant design: Feed material consistency: Feeding system: Drill cuttings, metal sludge, grinding swarf, mill scale sludge Drilling fluids, cooling lubricants up to C40 Fixed installation, modular Highly viscous and semi-solid sludge Double belt conveyor Equipment: 2 x VacuDry 12,000 Indirect heating: Throughput capacity: 400 C / thermal oil 6 t/h Start up: 2012
Grinding swarf & mill scale sludge
Plant overview Vapour filter Evaporation unit 1 Evaporation unit 2
VacuDry for oil sludge recovery Feeding material: Contamination: Plant design: Feed material consistency: Feeding system: Contaminated soils, oil lagoon sludge, drill cuttings, refinery waste Hydrocarbons C10- C40 Semi-mobile, modular Highly viscous and pumpable sludge Belt conveyor, pump system Equipment: 2 x VacuDry 12,000 Remoistening mixer SolidMix 350 Indirect heating: Throughput capacity: 400 C / thermal oil 3.0-5.0 t/h
Tank cleaning & oil lagoon sludge
Plant overview Condensation unit Evaporation unit 1 Cooling unit Discharge unit Cooling unit Evaporation unit 2
VacuDry for mercury waste Feeding material: Contamination: Feed material consistency: Feeding system: Industrial waste sludge Contaminated waste from gas drilling NORM sludge, mercury contaminated waste Mainly mercury and hydrocarbons Sludge with > 40 % solid content Feeding hopper Drying equipment: VacuDry 1,000 Cooling and moistening: SolidMix 650 Indirect heating: Cleaning capacity: 350 C / thermal oil Hg from 10,000 ppm to 10-50 ppm TPH from 20-30 % to output < 1% Start up: 2009
Mercury/NORM drill cuttings
Plant overview Evaporation unit 1 Vapour filter Condensation Thermal oil heating unit
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