Mobile Water Treatment Plant

Mobile Water Treatment Plant
Make: Applied Water Treatment Inc.
Model/Type: Mobile Water Treatment Plant
Style: Mobile / Portable
Year: 2021
Condition: Used Condition
Flowrate: Up To 1,296 m³/day (342,367 US Gallons Per Day)
Water Chemistry: Remove Heavy Metals Including; Al, As, Cd, Cu, Fe2+, Fe3+, Mn, Mg, Ni, Pb, Zn, SO4
Mobile: Plant On 53ft Trailer That Can Be Driven to the Site
Process Uses Hydrated Lime to Remove Heavy Metals to Meet Compliance
Automated Process Control Producing Consistent Water Quality
Plant Used at Sites to Meet Environment Canada and EPA Discharge Targets
Robust Process Utilizing Well Proven Technology Used at Over 100 Mines Globally
Plant Can Be Easily Modified For Site Specific Requirements (Mo & Se Removal)
Process: The heart of the treatment system is the chemistry utilized to treat contaminated water to meet regulatory compliance. pH is an indicator of what form metals in the contaminated water will take, that is, whether they are in solution (soluble) or are in solid particulate form (insoluble). pH of the contaminated water (feed to the plant) is typically acidic indicating soluble metals that must be treated to remove metals as solids.
In the plant, lime slurry is added to precipitate metals in optimum range for effective metals removal.
In the plant, lime slurry is added to precipitate metals in optimum range for effective metals removal.
M++ + SO4= + Ca++ + 2(OH)- + H2O → M(OH)2 + CaSO4•H2O2M+++ + 3(SO4)= + 3Ca+++ 6(OH)- + 6H2O → 2M(OH)3 + 3CaSO4•H2OCa(OH)2 + H2SO4 → CaSO4•2H2O
The amount of lime added to maintain the pH in the optimum range and effectively remove heavy metals is regulated by pH controller and site specific based on water chemistry. Excess addition of lime is wasteful with no benefits to the treatment efficiency. But causes additional problems with settling and sludge management. On the other hand, insufficient lime will result in low treatment efficiency and out of compliance water quality. Flocculant is added to the treated prior to discharge into the Sludge Pond where the solution is clarified. The precipitated metals settle in the sludge pond and clear solution can be discharged to the environment.
Water Chemistry: The mobile treatment plant has been meeting Environment Canada and EPA compliance limits at site in Canada (summarized in table below). However, the process can be easily modified based on site requirements.
 
Feed (mg/L)
Discharge (mg/L)
Arsenic
0.0416
0.00028
Cadmium
0.441
0.000052
Cobalt
8.49 
0.00038
Copper
1.11 
0.0061
Iron
760 
0.008
Lead
0.0057 
<0.0002
Manganese
170 
0.0175
Nickel
24.9 
0.002
Zinc
54.2 
<0.005
Sulphate
8350
2210
 
Feed (mg/L)
Discharge (mg/L)
Arsenic
0.0416
0.00028
Cadmium
0.441
0.000052
Cobalt
8.49 
0.00038
Copper
1.11 
0.0061
Iron
760 
0.008
Lead
0.0057 
<0.0002
Manganese
170 
0.0175
Nickel
24.9 
0.002
Zinc
54.2 
<0.005
Sulphate
8350
2210
Mounted on a 53ft Renn Flat Deck Tri-Axle Trailer
Plant Components:
Ingersoll Rand UP6-7.5 Tank-Mounted Compressor - 28 CFM 
(2) Hayward Gordon Agitators with Impellers - Model HRFX-10-614
(3) MX Direct Agitators with Impellers and VFD - Model TBE075VGD
Tsurumi Submersible Pump - Model KTZ43.7
Vertical Pump
Metering Pump
(4) Slamjet Spargers
600 Amp Allen Bradley MCC
Transformer
Control Panel
Electrical Cables
Piping
Steelworks  
Ingersoll Rand UP6-7.5 Tank-Mounted Compressor - 28 CFM 
(2) Hayward Gordon Agitators with Impellers - Model HRFX-10-614
(3) MX Direct Agitators with Impellers and VFD - Model TBE075VGD
Tsurumi Submersible Pump - Model KTZ43.7
Vertical Pump
Metering Pump
(4) Slamjet Spargers
600 Amp Allen Bradley MCC
Transformer
Control Panel
Electrical Cables
Piping
Steelworks  
Overall Dimensions: 
Length: 56ft
Width: 104in
Height: 161in
Weight: 12,000 kg (Estimate)
Length: 56ft
Width: 104in
Height: 161in
Weight: 12,000 kg (Estimate)
Location: Savona, British Columbia, Canada
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