TUNNEL CONSTRUCTIONWATER TREATMENT

Sydney Melbourne Brisbane Portsmouth Suva Auckland| | | | |

Level 26, 44 Market Street Sydney, NSW 2000

1300 417 697 info@hydrofluxindustrial.com.au hydrofluxindustrial.com.au

Hydroflux Industrial is Australia’s most experienced specialist water treatment contractor working within the Tunnelling Industry. Our engineers have been involved in the design and construction of both temporary and permanent water treatment plants since the late 90’s throughout Australia.

We have a long history of supplying water treatment systems ranging in capacity from 1L/s to over 200L/s suitable for water containing a vast range of solids concentrations and types, and other contaminants. Our water treatment capabilities specifically for tunnelling operations include slurry and solids handling and dewatering, coarse and fine filtration, clarification, flotation, carbon filtration and membrane systems. Our plants are tailored to achieve any discharge criteria as required by the EPA or in accordance with the ANZECC guidelines, as well as produce recycled water for reuse.

Hydroflux has the largest team dedicated to water treatment, with over 40 specialist staff in Sydney available to support the project.

CAPABILITY STATEMENTTUNNEL CONSTRUCTION WATER TREATMENT

EXPERTISE

Hydroflux are intimately familiar with the requirements for water treatment for tunnel construction water. Hydroflux has unmatched expertise in Sydney Tunnelling projects, with our engineering team having worked on multiple projects, including but not limited to;

• Northconnex (Underground TunnelMAX treatment plants – still currently operating)

• Westconnex (Rectification of failing competitor system – still currently operating)

• North West Rail Link

• Epping-Chatswood Rail Link

• Campbellfield Tunnel

• Lane Cove Tunnel

• Opera House

• Campbell Street Substation

• Bogo Road Busway

• Eastlink

• Sugarloaf Pipeline

• GCD Alliance Pipeline

• Brisbane Airport Link

• Bogong Power Station

Hydroflux WTP designs are capable of treating highly concentrated slurries

CURRENT PROJECTS UNDER CONSTRUCTION

Melbourne MetroDesign and construction of treatment plants for SEVEN sites ranging in flow from 1 L/s to 20 L/s. The process involves clarification, solids dewatering and handling, multimedia filtration and due to the presence of PFAA and hydrocarbons, additional carbon filtration and ion exchange are included at some sites.

WestgateDesign and construction of treatment plants for THREE sites ranging in flow from 12 L/s to 20 L/s. The process involves clarification, solids dewatering and handling plus multimedia filtration to enable recycling of the water.

BELOW GROUND SOLUTIONS

Tunnelling can be an unpredictable operation where significant and variable solids loads and water volumes are deposited within the tunnel during excavations. As well as treating material on the surface, managing solids within the tunnel is a key part of the overall solids handling and water treatment strategy. Hydroflux have developed a unique deployable process called the TunnelMATE™ which effectively removes and dewaters solids from the waste stream prior to transfer of the water to the surface for treatment, polishing and discharge.

The TunnelMATE™ is designed to dewater solids collected within fish tanks and other primary separation devices and produce a dry cake. The advantage of this process is that the dewatered solids are transported to the surface with other spoil produced during the operation of the plant. This saves considerably on the cost of maintenance and energy necessary to pump concentrated slurries to the surface and prevents overloading of the above ground treatment plant.

Hydroflux TunnelMATE® Systems can handle extremely high solids loads

Hydrofl ux Industrial is fi rmly committ ed to work acti viti es being carried out safely, and with all appropriate measures taken to remove risks to the health, safety and welfare of all employees, contractors, authorised visitors, and anyone else who may be aff ected by our operati ons.

Hydrofl ux Industrial demonstrate this commitment through the implementati on of a Safety Management system under GRS Certi fi cati on’s program.

OHSAS 18001:2007 Certi fi ed by GRS under certi fi cate number 47718001610008.

AS/NZS 4801:2001 Certi fi ed by GRS under certi fi cate number 4774801610008.

HEALTH AND SAFETY

Hydrofl ux has offi ces in Sydney, Melbourne, Brisbane, Suva, Auckland and England and currently employs over 50 people across the group.

Hydrofl ux TunnelMAX® Systems can handle high water flowrates with high solids loads

SUMMARY OF HYDROFLUX SOLUTIONS FOR TUNNEL CONSTRUCTION

Temporary Water Treatment Plants Have the following features;

• Deployable, Below Ground TunnelMATE® slurry dewatering plants

• Deployable, Above Ground TunnelMAX® water treatment systems

• Painted Mild Steel Conical Bottom Settling/ Balance Tanks with optimised design for enhancement of primary settling

• Duty/Standby Mineral Slurry pumps for unparalleled pumping system reliability

• Deployable Chemical Dosing and Control Containers

• Deployable HySEP™ Lamella Clarifiers with oil skimmers

• Deployable HyPURE® Multimedia and Activated Carbon Filtration for final polishing of solids and dissolved Hydrocarbons

• Deployable HyPURE® Manganese Greensand Filtration for Heavy Metal oxidation & precipitation

• Deployable Dewatering Systems with HUBER Inclined Screw Press, HyPRESS™ Chamber Filter Press or HyPRESS™ Belt Press

• Deployable HyPURE® Ultrafiltration and Reverse Osmosis for specialist, highly sensitive environmental discharge applications

• Chlorination systems for Recycled Water Production

AUSTRALIA AND AUSTRALIASIA

+61 2 9089 8833Head Office: Level 26, 44 Market Street Sydney NSW 200Australia

Victorian Office: 84 Hotham Street, Preston VIC 3072 Australia

Queensland Office: 1 Westlink Court Darra QLD 4076 Australia

NEW ZEALAND

+64 9 352 2052Head Office: Level 26,Pwc Tower 188 Quay St Auckland

FIJI

+679 773 6950Head Office: 217 Victoria Parade Suva Fiji

UNITED KINGDOM AND EUROPE

+44 23 9270 4087Head Office: 1000 Lakeside North Harbour, Wester Road Portsmouth PO6 3EZ