1.800.420.4056newterra.com

Customer Need Many mine water streams are impacted by the detrimental effect of sulfide bearing rock exposed as part of the mining process. The sulfide based minerals, when in contact with ambient oxygen, produce sulfuric acid, depressing the pH of the tailings water, and promote the dissolution of heavy metals, sulfates and other minerals into the tailings water. This low pH tailings water is often treated with lime precipitation in a high density sludge (HDS) clarifier treatment process. This HDS clarification process requires heavy site fabrication of permanent infrastructure which is costly to implement in remote locations. The HDS processing can also lead to maintenance and operational challenges associated with pumping, settling, balancing and recirculating of high viscosity fluid.

The newterra Solution newterra designs and manufactures compact, modular, membrane based high density sludge treatment systems for Acid Mine Drainage (AMD). newterra’s Modular AMD Solution employs tubular microfiltration membranes for solids separation. Our durable tubular microfiltration membranes allow us cycle solids (TSS) content up to 3 - 6% by weight with a simple and robust process to achieve a compact modular footprint and eliminate all the issues associated with the conventional HDS process.

Differentiation ■ Membrane provides an absolute barrier■ Ultra-fine filtration achieves extremely low effluent discharge limits■ Rugged membrane structure allows for high solids handling■ Highly chemical resistant membrane with long service life ■ Suitable for placement on an engineered steel piling and beam foundations

eliminating the costly concrete infrastructure■ Parallel modules can handle higher flow applications ■ Advanced automation, with optional SiteLink technology■ Optional Sludge dewatering modules available ■ Optional downstream metals polishing solutions are available

Why newterra

• Compact footprint

• Fast onsite set-up

• Re-deployable

• Rugged Construction

• Concrete infrastructure not required

• Reliable, effective, automated operation

• State-of-the-art membrane treatment technology

• High effluent quality meeting stringent regulatory discharge criteria

• High solid handling capability

Cost-Effective Modular Treatment SolutionFor Low pH Acid Mine Drainage

Modular Acid Mine Drainage Treatment Plant for Mining Operations

1.800.420.4056 newterra.com

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Speci� cations

Target Contaminants

Membrane■ Type: Tubular, Asymmetrical■ Membrane Material: PVDF■ Tube Material: HDPE■ Pore Size: 0.1 micron (nominal)■ Operating Pressure: Up to 60 psi■ Operating Temperature: Up to 130 ºF■ Filtration Mode: Cross flow, inside/out filtration■ Chemical Resistance: acid, alkaline, oxidant■ Capacity: 400 gpm modules, larger designs available■ Size of a 400 gpm Standard Package: Qty 2

buildings, 12.5’ wide, 40’ long, 10’ high each

Target Contaminants ■ Heavy Metals: Ba, Be, Cd, Co, Cu, Fe, Hg, Ni, Sn,

Zn, Ag, V. ■ Non Metals: Fluoride, Phosphate, Sulfates, ■ Hardness: Calcium, Magnesium, Strontium, Silica

Other Treatable Compounds with Additional Treatment Steps■ Metals: As, Mn, Hg, Cr, U■ Non Metals: Cyanide

Modular Acid Mine Drainage Treatment PlantCost-Effective Modular Treatment Solution For Low pH Acid Mine Drainage

Effluent

MetalHydroxide& Ca S04

Precipitation

Lime

MicroFiltration

3-6% SolidsConcentrate

Acid

CIP WastewaterReturn