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

& Benefits Features

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 m3/h ●Very low maintenance ●Low ownership cost ●Simple operation

Anglo Platinum Mine ●OS m3/h ●On a galvanized bund ●Very low maintenance ●Low ownership cost ●Simple operation

Caltex Mackay Terminal ●OS70 - 7m3/h ●Treating water from bunded area

Rio Tinto - Tom Price OS35, 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 m3/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 ● OS35 – 3.5 m3/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 m3/h

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

Waterval Platinum Mine ● 15 m3/h ● Mine in South Africa

HWE/BHP Yandi Mine ●15 m3/h ●Mine Vehicle Wash

Rio Tinto - West Angelas ●15 m3/h built to RTIO specifications ●Mine Vehicle Wash

BHP Yandi ES220 built to BHP specifications Wash down facility Discharge Standards TPH < 5mg/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