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Category Archives: EcoFarmer

Liquitech Water | Ecofarmer 250 + Bore Water Treatment Facility

Client: Liquitech Water

Location: Pacific

Project: LiquiTech Water

Solution: Ecofarmer 250 + Bore Water Treatment Facility

Industry: Industrial and commercial water treatment

 

BACKGROUND

LiquiTech has been in water market for many years with sound industry knowledge in the hydraulic, mechanical and water treatment markets through Australia. RWTS with delivers to their client LiquiTech Water a custom solution including their start-of-the-art Ecofarmer 250 plus a bore water treatment facility.

THE RWTS SOLUTION

CUSTOM BUILT WASTEWATER TREATMENT PLANT +WATER TREATMENT FACILITY

RWTS’s offering allowed LiquiTech the added peace of mind on not only receiving a quality solution but been guided by their over 100 years combined industry knowledge. Based on the project scope the solution was clear; they designed and installed their reputable Ecofarmer 250 wastewater treatment plant in addition to their advanced Brackish Water Reverse Osmosis (BWRO) treatment system. The design included a brine transfer system, pre-filtration system with acid and anti-scalant metered dosing, auto flux capability, permeate flushing, recirculation and monitoring package, remineralisation LSI correction system and potable water reticulation pumps. Containerised in a modular treatment package ready for site deployment in the pacific.

NEED AN INNOVATIVE SYSTEM THAT DOES NOT FAIL?

If you are wanting a wastewater treatment system that works all day every day with the ability of remote monitoring, please call one of our friendly engineering team today to discuss your waste water issues and how we can help.

Baralaba Coal | Ecofarmer 250 Wastewater Treatment Plant

Client: Fraser Level

Location: Central Queensland

Project: Baralaba Coal

Solution: Ecofarmer 250

Industry: Hospitality

 

BACKGROUND

RWTS with client representative Fraser Lever set out to design a suitable wastewater treatment facility for the Baralaba Caravan Park located in Central Queensland

THE RWTS SOLUTION

CUSTOM BUILT WASTEWATER TREATMENT PLANT

The solution was our Advance Ecofarmer 250 platform allowing for full automation across the site. This Ecofarmer saw a complete site integration between the main pump station, remote pump station and irrigation field tank level, flow data and solenoid control in field including a wet weather solution closed out the RWTS scope.

NEED AN INNOVATIVE SYSTEM THAT DOES NOT FAIL?

If you are wanting a wastewater treatment system that works all day every day with the ability of remote monitoring, please call one of our friendly engineering team today to discuss your waste water issues and how we can help.

Westgold | Wastewater Treatment Plant

Another pair of Ecofarmer 250 units on deck for one of our mining clients in Western Australia. Arranged in twin train Ecofarmer 250 design with a Class A advanced media polishing packaged to ensure we meet our clients site compliance.

Client: Westgold

Location: Western Australia

Project: Westgold Cue Village WWTP upgrade

Solution: Twin Train Eco250 units with class a polishing package

Industry: Mining

 

BACKGROUND

The current waste water treatment facility situated at Cue Village Westgold needed to be replaced due to age and premature wear on the steel structure.

RWWA was asked to submit a proposal to design and construct a suitable waste water treatment system that suited the site hydraulic and incoming biological nutrient demand that would meet the release criteria as specified by governing body.

The new sewage treatment plant (STP) is designed to provide ongoing reliable service and to minimise maintenance requirements, ensuring ease of operation whilst maintaining reliable effluent quality and daily production.

THE RWWA SOLUTION

CUSTOM BUILT WASTEWATER TREATMENT PLANT

The site compliance targets are based on standard nutrient with Class A disinfection requiring less that 10 Ecoli per 100 ml of sample. Our Ecofamer SBR solution is packaged and delivered complete with our integral Class A glass media filtration system, that will further filter the supernatant from the sequencing batch reactors (SBR) to a higher class of final effluent, to release to ground.

 

Our glass media design is based on the ‘Drydan Glass,’ a validated and certified media product sold here in Australia. This is a highly refined crushed glass with excellent flux potential, allowing for full rejuvenation through a backwash and chemical clean process that extends to the filtration cycle, as oppose to conventional sand base media.

 

 Our Class A media package is housed in a 20 ft high cube container beside our Ecofarmer treatment units. A dedicated feed pump on the VSD control, will continually recirculate the supernatant fluid over the glass media. Then the flow pace chlorine injection will sanitise the water keeping the media beds at optimal working order, whilst reducing fouling potential free residual oxidant. This will then be monitored and corrected for bacteriological control in the final effluent water body. Once the water has met specification within the chlorine contact residence time, a modulating valve will allow fluid to pass to the irrigation field.

As part of our advanced technology, a centralised Allen Bradley HMI and PLC will engage the operator allowing for full remote access, reducing any unnecessary call out fees.

Results:

The RWWA difference is our unique fabrication process of our engineered certified steel reactors that provide a generous 20 year chassis life guarantee. Our chassis are built from the ground up with 6 mm flat sheet formed and pressed for the walls giving the ultimate in rigidity and corrosion allowance. In addition, a suitable international or Jotun coating is applied to the internal and exterior of the box.

We are committed to providing the highest quality product and service to our customers.

NEED AN INNOVATIVE SYSTEM THAT DOES NOT FAIL?

If you are wanting a wastewater treatment system that works all day every day with the ability of remote monitoring, please call one of our friendly engineering team today to discuss your waste water issues and how we can help.

Canstruct | Water Treatment Plant

Our client, Canstruct chose a custom built surface water treatment plant to produce safe and reliable potable water for human consumption.

Client: Canstruct

Location: Northern Territory

Solution: 40ft containerised Surface Water Treatment System

Industry: Agriculture

 

BACKGROUND

Canstruct are constructing new and upgrading existing facilities to support industry activity that is requiring a suitable water treatment facility to cater for persons on site.

RWTS was successfully awarded the contract to supply a 40ft containerised surface water treatment system to produce safe and reliable potable water for human consumption.

When accessing the design of the surface water treatment plant we took into account some key consideration based on site specific risks and project requirements.

Requirements for the WTP for this application were as follows:

 

  • Variable site loads – load swings and variable quality raw water characteristics
  • Seasonal Variance affecting organic loads, TOC Levels and Algae Levels in raw water supply
  • Upstream Catchment Assessment shows the source water as Category 4
  • Upstream variability in raw water quality including cattle farming – cryptosporidium risk is high.
  • High Protozoa risks associated with the source water combined with the location of the catchment and temperature averages.
  • Indicative raw water test results show an extremely low LSI index (corrosive Index rating) resulting in the design requiring remineralisation as an addition to the primary process requirement.
  • 20 year design life with an acceptable ongoing cost

THE RWTS SOLUTION

CUSTOM BUILT WATER TREATMENT PLANT

RWTS designed and constructed a surface water treatment plant with a nominated design flow rate to provide a minimum of 75,000 litres per day.

The nominated recovery range for this system was 85% – with a worst case expected recovery during very high solids loading periods of 55%.

Raw water required for the 20 kl per day potable water was between 88,500 litres per day minimum and as high as 136,000 litres per day – depending on raw water quality.

There was several stages of the water treatment process implemented into the design and construction of this customize water treatment plant including;

 

  • Stage One – Chemical Dosing
  • Stage Two- AFM Media Filtration
  • Stage Three – Ultrafiltration
  • Stage Four – GAC Carbon Media Filtration
  • Stage Five – Ultraviolet Disinfection Post Filtration
  • Stage Six – Calcite Media Remineralisation Filtration
  • Stage Seven – Chlorine Dosing For Disinfection Post Filtration
  • Stage Eight – Chlorine Dosing And Ph Correction For Treated Water Storage Facility

 

OVERVIEW OF DESIGN AND SYSTEM FITOUT

The following key summary points outline the fitout of the system:

 

  • Electrical Control Panel/Switchboard – Exceeds AS 3000 Requirement
  • Custom Fabricated 40 Foot Container Based Building with Air Conditioning, Vinyl Flooring, Fridge Panel 50 mm Thick Insulation Panel Lined Internal Roof and Walls for Temperature Control.
  • Allen Bradley Micro-logix series PLC and Colour 10 inch HMI Screen Interface
  • Remote Dial In and SMS out E-Won Cosy Modem Platform for remote assistance support and alarm notifications.
  • Industry Standard high quality electrical components such as Schnieder, Hager and Finder.
  • 415 volt/240 volt segregated from 24 volt compartment
  • Overloads and Circuit breakers accessible from safe outer door to internal retainer door mounted position – no exposed terminals
  • Earth Leakage to AS 3500.
  • External Building Colour of clients choice

The water treatment system included a Grundfos CRIE15 Series duplex multistage pump set complete with variable speed drive motors. A PID Pressure targeting software control via an Allen Bradley PLC/HMI package was installed.

The pump set was sized to ensure each pump delivered 15l/sec @40 mtrs delivery head, allowing a duty standby control methodology, which allowed a final duty achieved of 10 ltrs second at 400 kpa.

A flow meter was installed on the treated water delivery line out of the system to monitor discharge flows. This would ensure the data logging of usage volumes and peak flows as well as ensuring if there were any issues an alarm would be triggered to alert operations immediately.

Results:

There was significant consideration into the site-specific risks for treatment and delivery in design and construction to ensure the final filtered and disinfected water in potable water storage complied with the Australian Drinking Water Guidelines (ADWG).

RWTS delivered a potable water treatment plant that provided a daily minimum of 75,000 litres of safe and reliable potable water for human consumption.

The water treatment system was designed and fabricated in a transportable/semi-permanent or permanent installation arrangement to provide continuous service with the required maintenance for a 20 year life expectancy.

NEED AN INNOVATIVE SYSTEM THAT DOES NOT FAIL?

If you are wanting a water treatment system that works all day every day with the ability of remote monitoring, please call one of our friendly engineering team today to discuss your waste water issues and how we can help.