Regional Communities

The type of wastewater treatment process selected is based on your environmental discharge license and any reuse criteria you may desire or require. Hydroflux Pacific’s solutions typically favoured by remote communities is the  RoadTrain® activated sludge plant.

The Carbon Neutral certified RoadTrain® solution is ideally suited for remote communities and is available in four different process configurations to accommodate various needs and capacities, ranging from 50 to 2000 EP. Our high-quality fabrication options ensure durability with a design life of 25 years and a proven track record of installations operating for over 40 years.

Aside from being a carbon neutral product, the RoadTrain® packaged sewage treatment solution is also a sustainable product as it adds economic value to the community it serves by being produced locally. In Fiji our production is in Ba on Viti Levu, and in Papua New Guinea we produce the plant in Port Moresby or Lae. The RoadTrain® is provided as a pre-fabricated system that is simply bolted to a concrete slab minimising the costs and time associated with construction and site works. For the most remote sites, a bolted version is available to simplify transport and installation works.

The RoadTrain® activated sludge plant is one of the most robust and simple to operate wastewater treatment plants favoured by resorts of all sizes

Configurations

There are multiple variations of RoadTrain® available, each tailored to specific performance requirements and space limitations.

The RoadTrain® range offers several options, with the most favoured and commonly used version at resorts being the RoadTrain® Original. This version employs the Activated Sludge treatment process, which includes pre-screening, aerobic treatment, clarification, and disinfection. Among the different RoadTrain® processes, the Original is the simplest and most user-friendly. The effluent discharge produced by this version generally meets environmental discharge standards across all nations in the region. For those seeking even higher performance in more sensitive areas, there are advanced variations of the RoadTrain® that specifically aim to enhance nutrient removal.

The following diagram shows the main elements of the Original RoadTrain® packaged sewage treatment plant.

Potable water, or drinking water, is a critical part of everyday life and a reliable supply of potable water is a critical asset of any community and whether your source of water is from bores, surface water dams, mains supply or desalinating sea water, Hydroflux  Pacific can provide high quality reliable potable water treatment systems.

Our potable water treatment solutions are customised on your raw water source and quality and guarantee a consistent potable water supply to your community

The solutions range from the simplest media filtration units to treat high quality surface water through to the most advanced reverse osmosis treatment solutions that generate potable water from sea water.

Ground water bores | HyPure® | Surface water | Sea Water RO | Municipal Water Supply

Ground water bores 

Bore water is groundwater that is extracted from a borehole, and the quality of bore water can vary depending on the location and the geological characteristics of the surrounding soil and rock formations. In some areas, the groundwater may have a high level of salinity due to the presence of dissolved minerals and salts, making it brackish.

Brackish water is treated through a variety of methods depending on the cleanliness of the water and the level of salinity. The most common methods of brackish water treatment Hydroflux has adopted for resorts  include:

In situations where the water exhibits high turbidity, the initial stage of treatment will usually involve chemical coagulation followed by clarification. This process aims to remove suspended solids and particles from the water, enhancing its clarity and reducing turbidity.

For non-brackish water with low levels of dissolved salts, the secondary and final treatment approach involves media filtration followed by disinfection. Media filtration effectively removes impurities and particulate matter from the water, while disinfection destroys harmful microorganisms, ensuring the production of potable water.

In the case of brackish water, a popular method of treatment is the utilisation of reverse osmosis (RO). This involves passing the brackish water through a semi-permeable membrane to effectively remove dissolved solids and salts. Reverse osmosis is highly efficient, capable of removing up to 99% of salts and minerals present in brackish water. Hydroflux can also incorporate Ion Exchange technology for similar purposes, utilising a resin bed that facilitates the exchange of ions.

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HyPure®

The Hydroflux HyPure range comprising any, or all stages of flocculation, clarification, filtration and disinfection can be skid mounted for assembly on site or completed containerised. Please refer to the animation below for a typical containerised HyPURE membrane plant

Hydroflux design and supply a range of robust HyPURE® UF ultrafiltration (and MF microfiltration) systems, with standard sizes ranging from 10m3/hr to 200m3/hr.

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Surface Water

Surface water collected in dams at resorts can be treated to make it safe for drinking and other uses. The treatment method used will depend on the quality of the surface water, but the most common methods of surface water treatment adopted by Hydroflux Pacific include:

• Coagulation and flocculation: This is the initial step in the treatment process where chemicals are added to the water to remove suspended particles and turbidity. Coagulants like alum and ferric chloride neutralise the charges on suspended particles and form larger aggregates called flocs that can be easily removed.
• Sedimentation: The water is then allowed to settle in a clarifier, allowing the flocs to settle at the bottom of the tank. This process removes large particles and flocs from the water.
• Filtration: The water is then passed through a series of filters, including sand, gravel, and activated carbon, which remove smaller particles, organic matter, and bacteria.
• Disinfection: After filtration, the water is disinfected using chemicals like chlorine, ozone, or UV light to kill any remaining bacteria, viruses, and other pathogens.

Hydroflux Pacific has vast experience in the treatment of surface water and the applications described above. Systems can be containerised for easy deployment or provided on skids for partial assembly on site.

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Sea Water RO 

One of the primary obstacles in obtaining clean water from seawater is the significant amount of energy needed for desalination. Hydroflux presents a variety of innovative energy recovery solutions tailored for small and medium SeaPURE plants, which can produce as little as 5m3/day. Our exceptional design features guarantees that Hydroflux delivers the most energy-efficient solution in the market, catering to the requirements of resorts of all sizes.

Some of the key features of the SeaPURE range of seawater include:

• VSD drives for all high-pressure pumps, to optimise energy consumption and plant recovery regardless of feed conditions
• Energy Recovery Devices, even on the smallest plants
• Robust, cost-effective plant design all manufactured to Australian standards
• Advanced instrumentation and monitoring to facilitate forecasting of system maintenance and membrane life
• Remote plant control and troubleshooting support through HyCONNECT®
• Utilisation of world leading HydraSCALE® RO anti-scalants to optimise plant performance
• Containerised or modular skid mounted solutions for true plug-and-play installation
• Integration of the SeaPURE plant with a wide range of pre-treatment solutions designed and supplied in-house by Hydroflux

The Hydroflux HyPure range is a containerised or skid mounted system with treatment processes selected based on the raw water quality.

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Municipal Water Supply

Although the treatment of mains or tap water supplied by the local municipality may not always be mandatory, resorts bear the responsibility of ensuring that the water supplied to their guests is both safe and compliant with relevant regulatory standards. Hydroflux offers a range of solutions to safeguard your community and offer reassurance in terms of water quality.

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Our team of experienced consultants from Cress Consulting, a division of The Hydroflux Group are committed to uncovering opportunities for sustainable growth. These include:

• Climate resilience: We assess climate risks and determine climate adaptation responses to strengthen your resort’s resilience to a changing climate.
• Water stewardship: We help resorts adopt effective water stewardship practices, identify risks and opportunities and support collaboration to address shared water challenges.
• Sustainability Strategy: We work closely with resorts to assess current practices, identify opportunities to enhance sustainable tourism, design and implement a comprehensive sustainability strategy.
• ESG reporting: Our team conducts a thorough assessment of your resort’s sustainability practices, identifying areas for improvement and developing an ESG strategy to maximise positive impact and enhance transparency.
• Carbon accounting and emissions reduction: Our team helps resorts measure, manage, and reduce greenhouse gas emissions. We conduct carbon assessments, develop emission reduction plan, and support the implementation of a roadmap to enhance the transition to net zero.
• Training and Capacity Building: We provide training programs to enhance staff knowledge on climate change, water stewardship and other sustainable practices as well as support effective implementation of strategies, plans and programs.

Our expertise and comprehensive solutions will help you secure a resilient, sustainable future. For more information, please visit cress.au

What is the water quality required for discharging wastewater from my resort?

The specific water quality requirements for discharging wastewater from a resort in the Pacific can vary depending on several factors, including local regulations and environmental considerations. Hydroflux can assist in establishing the requirements and approvals.

What information is needed to provide a wastewater treatment plant design?

In order to prepare a design and costing for a wastewater treatment plant, we would require the following information to start to selection.

• The number of people or beds taking into account expansion plans
• The expected lifespan of the site (not the equipment but the entire site)
• The discharge license criteria which is typically solids, organic load (ie BOD or COD) and nutrients (Nitrogen and phosphorous) – Hydroflux Pacific can assist with this along with any reuse intent

What type of water treatment system do I need at my resort?

A reliable supply of potable water, or drinking water, is a critical asset of any resort. The type of system required is entirely dependent on the source of raw water be it from bores, surface water dams, mains supply or desalinating sea water, Hydroflux  Pacific can provide high quality reliable potable water treatment systems to suit any water supply.

I already have a wastewater treatment plant, but it does not work well. Can you upgrade this?

Choose from one or more of the solution categories and start considering the treatment options available to you. Getting in touch with us is easy, raise a query by calling us on +679 7736950 or email us on [email protected]

What size of Rural Communities, Remote Communities and Informal Settlements resorts do you service?

Hydroflux Pacific can design water and wastewater treatment system for any size of community. Typically these range from  or 10 kL/day to 600 or 50 to 2000 EP (Equivalent population)

How large are the systems and can they be installed underground

A typical 500 EP plant will require approximately xm x xm footprint for the wastewater treatment plant. Please contact us for sizing  and design

What materials does Hydroflux use for the construction of its wastewater treatment plants?

A resort wastewater treatment plant is a significant investment so making the right choice is critical when considering long term economic value. Wastewater treatment plants can be constructed using plastic materials, fabricated steel systems, constructed in concrete or provided as containerised solutions. Containerised systems are appropriate for short term sites where assets need to be relocated or sold upon completion whilst fabricated systems, like the Hydroflux Epco RoadTrain®, offer the benefit of transportability and robustness, intended for long term service for sites in excess of 25 years. Concrete tank systems are intended for sites where concrete is readily available, and the site requires generations of service.