Mine Operations Oily Water Separators Who are we

Mine Operations Oily Water Separators

Who are we? ● Small high tech engineering company ● Involved in water treatment since 1983 ● Innovative new ways to treat water containing oil and grease ● Sell systems to ● USA ● UK ● Australia ● New Zealand ● Africa ● Europe

Clients ● Mining companies ● Oil companies ● Power authorities

How Does it Work? ● 1000 times force of gravity ● No moving parts ● Separator requires no cleaning

How Does it Compare? Source: The treatment of produced water in offshore rig; Comparison between traditional installations and innovative systems; F. E. Ciarapica.

Types of Oil Pollution 1. Free Oil ●Free floating oil OR ●Oil droplets greater than 150 micron. ●Free oil can separate by Gravity. 2. Emulsified Oil ●Oil droplets less than 150 micron AND ●Oil droplets greater than 2 micron ●Emulsified oil must be treated with a more powerful separator. 3. Dissolved Oil ●Oil droplets less than 2 micron OR ●Physically dissolved in the water. ●Dissolved oil will NOT be treated by conventional gravity, plate pack type systems. 4. Heavy Oil ●Oil with density >1 ●Oil Stuck to heavy solids

Features & Benefits

Lowest Ownership Costs ● When making an investment you need to consider the total cost of ownership over the lifetime of your investment: ● Installation, ● Operation and ● Maintenance ● After only 5 years, Ultraspin systems can be HALF THE COST.

Our Experience ● ~ 800 oily water treatment systems installed. ● ~ 27 billion litres of water treated ~ 75 % of the yearly water usage of the City Of Sydney. ● Reclaiming about 5 billion litres of water per year.

Oily Water on Mine sites ● Typical uses ● Mining – Workshops ● Vehicle Wash / Truck wash ● Refueling / Fuel Storage

In Action At Start-up With Ultraspin system

BHP Newman Loco ● OS 35 - 3. 5 m 3/h ● Very low maintenance ● Low ownership cost ● Simple operation

Anglo Platinum Mine ● OS 35 - 3. 5 m 3/h ● On a galvanized bund ● Very low maintenance ● Low ownership cost ● Simple operation

Caltex Mackay Terminal ● OS 70 - 7 m 3/h ● Treating water from bunded area

Rio Tinto - Tom Price OS 35, 3, 500 L/h built to RTIO specifications Oily water treatment system at central facilities Skid mounted

Typical Process ● Key Components ● ● Ultraspin Separator Floating skimmer Air pump/controls Oil tank

Centennial Coal ● OS 20 - 1. 75 m 3/h ● 500 L oil tank ● Aeration tank ● Pneumatic operation

Oily Water with Aeration ● Key Components ● ● ● Ultraspin separator Floating skimmer Air pump/controls Aeration Tank Spill protection

Mine Refueling / Storage Free / Emulsified/ Air Oil Tank Aeration tower Typical 10 mg/L O&G

TOTAL - Island View Terminal ● OS 35 – 3. 5 m 3/h ● Oil collection tank ● Effluent: ● O/G < 20 mg/L ● SS < 30 mg/L

BHP Billiton, Newman ● Heavy Vehicle Wash ● Water Reclaim System ● Treating 90 m 3/h

Coal Mining ● Heavy vehicle wash ● Photo after 6 years of operation

Waterval Platinum Mine ● 15 m 3/h ● Mine in South Africa

HWE/BHP Yandi Mine ● 15 m 3/h ●Mine Vehicle Wash

Rio Tinto - West Angelas ● 15 m 3/h built to RTIO specifications ●Mine Vehicle Wash

BHP Yandi ES 220 built to BHP specifications Wash down facility Discharge Standards TPH < 5 mg/L

Summary ● New ways to treat oily water ● Benefits to mining companies by: ● lowering life cycle costs ● simple operation ● improving water quality ● complying with environmental standards