2015

Aurora Waste to Energy Project

 

YARRAVALLEYAURORAYarra Valley Water, one of Australia’s largest water authorities, contracted Aquatec Maxcon to investigate and design a waste 
to energy solution as to provide a more sustainable sewage treatment plant to the area. Aquatec Maxcon was able to provide 
a unique  business  model  to  the  council,  which  produces  renewable  energy  from  a  variety  of  different  waste sources.

The unique design solution is to be used by powering the existing Aurora  sewage  treatment  plant  and recycled water facility, with
excess  energy  exported  to  the  grid.  The  facility  is  planned  
to provide  more  sustainable  energy  from  the  existing  sewage
treatment plants and remove waste that would otherwise end up in landfill.

Aquatec Maxcon plans to fully operate the facility once the plant has finalised the construction and commissioning phases.As the technology provide on the Aurora project, Aquatec Maxcon has planned to construct the waste to energy facility which on average will be processing 100mof waste every day, equating to approximately 5-7 truckloads of organic waste daily. The sewage treatment plant will use biomass derived from a number of sources, which may include fats, oil & grease, fruit & vegetable wastes and wastes from animal processing facilities (such as the sludge from waste treatment plants at abattoirs). The biomass is to be stored in separate liquid holding tanks or in a solids receivable building area to allow for a consistent mix to be fed to the digesters. 

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  The plant will feed the biomass mixture     into the digesters, where the absence of     oxygen causes the waste to break down.   As this waste breaks down it generates     methane, which is the main component     of natural gas. The biogas can be used       directly for producing heat or combined       power and heat (CHP). The process is       incredibly energy efficient, as out of 100 per cent of the energy content put into the plant only 12 per cent is required to run the plant and only 10 per cent is lost from teh CHP process. This leaves an excess of 78 per cent of the energy to be sold in the form of power and heat, or excess electricity to the grid.

Aquatec Maxcon also plans to construct a state of the art odour treatment to ensure that odour is effectively and efficiently managed. The facility is managed through an EPA Works Approval process to ensure that the environment is protected. 


Mondelēz Industrial Trade Waste Project

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Aquatec Maxcon was engaged by Mondelēz Australia, one of the largest food processing companies in Australia, to upgrade their Trade Waste Treatment Plant in Port Melbourne, Victoria. The new plant is designed to neutralize and control the temperature of the effluent to the South East Water sewer line in order to meet the environmental compliance limits.

Aquatec Maxcon provided a unique design solution by using two 45,000L tanks, with the functions of the two tanks varying dependant on the load volumes. The system also utilizes a unique control solution to neutralize the various batch discharges from the Factory.

The process maintains a constant neutral pH level, regulates the temperature and manages the discharge rate, as to minimize dilution and storage during periods of low production at the Factory.

The main design elements of the industrial waste plant include buffering tanks, mixers, heat exchanger and cooling tower, recirculation pumps and a dedicated chemical dosing system. The chemical neutralization system uses phosphoric acid, hydrochloric acid and caustic dosing. A specialized chemical is used for Ammonia reduction and odour removal of the waste prior to sewer discharge.

If you would like to know more about the solutions we offer for Industrial plants, go to http://www.aquatecmaxcon.com.au/solutions/industrial-food-a-beverage or Contact Us.

Chinchilla Waste Water Treatment Plant Upgrade

Western Downs Regional Council has awarded the contract to design & construct the upgrade 1.725MLD Chinchilla WWTP to Aquatec Maxcon.

As a result of an estimated population growth in the region, Aquatec Maxcon has provided the proprietary ‘Hybrid Biological Nutrients Removal’ (HBNR) process.

The HBNR process has been successfully verified in both Miles and Wandoan WWTP's for the same council.

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The plant upgrade will be designed to include:

  • Inlet Works
  • Biological Reactors utilising our unique Hybrid Biological Nutrient Reduction technology.
  • Biological Phosphorous removal.
  • Aerobic sludge Digestion.
  • Chemical dosing including Lime and sodium hypochlorite.
  • Sludge Dewatering System (Centrifuge) including polymer dosing.
  • New irrigation lagoon.

Some of the highlights of the technologies to be provided by Aquatec Maxcon include:

  •  High efficiency AquaBlade diffuser and fine bubble aeration system for the bioreactor
  • High reliability Gas Locked Syphon Decanter
  • High efficiency AquaStar surface aerator for aerobic digester

Nereda® technology selected to participate in Melbourne Water trial

In conjunction with our joint venture partners, John Holland and GHD, Aquatec Maxcon has been selected to participate in the trial phase of the augmentation project at the Western Treatment Plant using the world-leading Nereda® technology. Three consortia have been shortlisted by Melbourne Water for the trial phase. The objective of this phase of the project is to select a preferred treatment technology for a plant upgrade of 140 milliong litres a day. Three consortia have been shortlisted by Melbourne Water for the trial phase.

Melbourne Water Nereda Pilot Plant 270x203Nereda® technology, developed by Dutch company Royal HaskoningDHV in cooperation with Delft University of Technology, the Foundation for Applied Water Research STOWA and Dutch water boards will be used to construct a pilot plant at the trial site to operate for a period of 12-18months.

Nereda® process has lower energy consumption needs when compared to conventional wastewater treatment plant.

Other benefits include lower operating costs with a small physical footprint making it a cost effective option. There are plants in operation and under construction in the Netherlands, Portugal, Poland, South Africa, Brazil, the UK, Ireland, Switzerland and the recently awarded at Kingaroy WWTP, in Australia.

For more information on the Nereda® process click here

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