ShaleFlow™ Mobile Water Treatment System for Reuse Aaron Poon Business Developer, Veolia
Conventional Treatments for Reuse Single treatment using lamella clarifiers Commonly known as “Floc and Drop” Heavy chemical treatment Simple, gravity only separation Legacy technology that anyone can offer
Disadvantages Non-optimizable, only variable that can be adjusted is the chemical regime. Lacks flexibility across all water types seen in shale oil (may not work for all water types). No oil recovery Incomplete removal of TSS and residual bacteria
Ineffective treatment leads to long term problems. Poor water quality, pond fouling, well fouling, and odors. 2
System Design Basis CONTAMINANT
INFLUENT
EFFLUENT
FREE OIL, MG/L
500 - 1000
< 5
TURBIDITY, NTU
500 - 2,000
< 20
TOTAL IRON, MG/L
20 - 50
< 1
TOTAL MANGANESE, MG/L
10 - 20
< 1
TSS, MG/L
1,000 - 4,000
< 5
H2S, MG/L
50 - 300
< 1
10,000 - 20,000
NON-DETECT
100,000 - 250,000
-
BACTERIA, CFU/ML TOTAL DISSOLVED SOLIDS, MG/L
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Treatment Process - ShaleFlow™
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ShaleFlow™ - Technology Features Compact treatment system with full solution included in three mobile trailers Packaged, modular, mobile system ready for “drop and go” treatment High effluent quality allowing for frac water reuse >98% water recovery, zero liquid waste Recovery of Oil from the process Non-hazardous sludge suitable for landfill disposal Equipment designed to operate in highly corrosive environment Single-point responsibility = Risk Minimization 5
ShaleFlow™ - Primary Separator Process Goal Bulk Oil & TSS Removal Prevent system upsets
Optimized Flow Distribution One hour retention time 80-90% removal of free oil and heavy solids
Proprietary Underdrain System Online solids removal Low maintenance and confined space risk
Floating oil skimmer Online oil removal Recovery of saleable oil Flexibility in level and throughput
Typical Process Performance Typical Outlet Oil & TSS : 200-400 ppm 6
ShaleFlow™ - Idraflot® Dissolved Air Flotation Process Goal Secondary Free Oil and TSS Removal
High Efficiency Process Microbubble flotation 90-95% Free Oil Removal
Lower Saturated Water Flow rates Homogenous Air/Liquid Mixing 50% Less than Conventional Systems
Coagulant and Polymer Addition Improved Treatment Efficiency
Dense Sludge suitable for Dewatering 3 to 5% Concentration
High Hydraulic Loading Rates Lower Retention Time/Mixing Volumes Fouling resistant “honeycomb” lamella plates
Typical Process Performance Typical Outlet Oil & TSS : 10-20 ppm 7
ShaleFlow™ - Power Clean® Nutshell Filter Process Goal Polishing Free Oil and TSS Removal
Nutshell Media Filtration Highly resilient black walnut shell media Fouling resistant
External Backwash Process Patented Fluidized Bed Process Short Backwash Duration (12 mins) Power and efficient media cleaning External scrubber for ease of maintenance
High Hydraulic Loading Rates Less Floor Space Requirement
High Quality Effluent 95% Free Oil Removal
Typical Process Performance Typical Outlet Free Oil : 1-2 ppm 8
ShaleFlow™ - Filter Press Process Goal Sludge dewatering to minimize waste Dewatering of Primary Separator and Idraflot DAF Sludge
Plate and frame type filter press Semi-automatic filter press to reduce manpower
Metallurgy suitable for high TDS application All materials compatible for 250,000 mg/l TDS
Easy solids removal Solids conveyed to roll-off bin for easy pick up and drop off
Non-hazardous sludge suitable for disposal 30-40% water content to pass paint filter test 9
ShaleFlow™ Technology Performance Example PARAMETER
INFLUENT
PRIMARY SEPARATOR OUTLET
FREE OIL, MG/L
1,000
< 250
< 20
< 5.0
TSS, MG/L
1,200
< 250
< 30
< 5.0
TOTAL IRON, MG/L
50
50
< 5
< 1.0
H2S, MG/L
50
50
98% water recovery in the process
Metallurgy Suitable for High TDS Environment To prevent corrosion of the equipment due to high chlorides
Non Hazardous Sludge Waste Suitable for landfill disposal
Integrated System Process Guarantee For mobile and fixed permanent systems
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ShaleFlow™ - Configurations
10,000 barrel/day Mobile System - 3 Trailers
30,000 / 60,000 barrel/day Fixed Permanent Facility
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Thanks for your attention!