Header image  

Aquaponics Home Systems
Floating Reedbeds and Wetlands
Floating Biofiltration

 
line decor
  
line decor
 
 
 
 

 
 
Aqua Biofilter™

The Aqua Biofilter™ is a unique biofiltration product integrated into our range of Aquaponics Home Systems, Floating Wetlands, Floating Reedbeds and Floating Habitat Islands. Biomimicy of natural systems allows nature to be restored to a state of balance, benefiting human health and wellbeing by purifying water that we enjoy for drinking, bathing, showering and recreation. Wetlands are the kidneys of the landscape, purifying and cleansing waterway pollutants, heavy metals, and excessive nutrients. Often wetlands and ponds accumulate excessive sediment, nutrients and pollutants whilst water quality declines, algal blooms and aquatic weeds proliferate reducing biodiversity. Restoring ecological function and bio-signal activity requires natural systems that mimic peak ecosystems - which led us to design and development the Aqua Biofilter™ in 2004, to improve water quality beyond existing methods for ponds, wetlands and waterways.

Aqua Biofilter Floating Reedbeds Floating Wetlands Floating Islands

Aqua Biofilter Floating Reedbeds Floating Wetlands Floating Islands

Background
Inventor of the Aqua Biofilter™, Tom Duncan, started his aquaponics social enterprise in 2000 for community gardens to optimise small urban spaces for food production. Tom's background in permaculture and environmental management led him to teach Permaculture Design Courses from 2002 onwards with the co-founder of Permaculture David Holmgren and other well known designers, specialists in Regenerative Agriculture (Regrarian) Darren Doherty, Permaculture Designer and Teacher John Champagne, whilst keeping in close contact with his teacher Geoff Lawton founder of the Permaculture Research Institute. Since 2000 Tom has been building aquaponics systems in largescale and small scale aquaculture systems across Australia and China. His projects include the largest aquaponics systems in the world, covering in some cases, hectares of aquaculture pond and lake with edible plants including rice and flower products including canna lily. Tom's creativity in deveoping large scale aquaponics system upcycling nutrients for ecological, social and economic benefits, led him to further refine his aquaponics home systems that incorporated all the accumulated knowledge and design smarts, into small scale aquaponics home systems that utilise fish waste and produce food at a home micro-scale. Tom believes growing food at home is one of the most important things people can do for the planet and their own health,by reconnecting to locally grown healthy food and community. The new Aqua Biofilter™ is an aquaponics home system that grows herbs, greens and vegetables year round in small urban spaces where an outdoor garden or community garden is not available, turning your kitchen benchtop, balcony or bench into an urban micro farm, reconnecting to your food

Aqua Biofilter Floating Reedbeds Floating Wetlands Floating Islands

Aquaponics Floating Wetlands

Aquaponic floating wetlands pictured above was installed over severalhectares of aquaculture zone in Lake Taihu, China. The aquaculture was being impacted by stormwater and cross contamination with effluent, whilst fish waste led to ammonia build up and exacerbated algal blooms. Canna lily feature an edible rhizome with carbohydrates, whilst in the project below, wheat is grown in urban waterways and canals in a new residential area of Nanjing. Experimenting with food crops, wetland species, native sedges have led to in depth knowledge of plant - fish interactions, growth cycles and smart design principles to accelerate plant growth and purify water quickly. It should be noted that food suitable for human consumption must be grown in water that is pure, hygenic and with appropriate levels of nutrients. Experimental approaches to large scale aquaponics has yielded design insights that have been incorporated into unique aquaponics home systems that grow food safely in your home, by recycling fish nutrients to grow your herbs, salad greens, wheat grass year round.

Floating Wetlands

Above project, growing wheat in the Nanjing eco-city development.

Rice Aquaponics Tom Duncan

Above project rice aquaponics growing on fish ponds to remove excess nutrients and provide and economic return for farmers. Social benefits include reducing nutrients and pollutants impacting receiving waters, lakes the marine environment, and enhancing humanand fish health outcomes.

Rice wheat aquaponics

Above project growing over a hectare of rice on fish ponds aquaponically to reduce ammonia and nitrogen, producing 20% more rice 15% faster than conventional rice paddy.

Floating Treatment Wetlands


Root Development

Reduction

TN 40-80%
TP 50-80%
TSS 50-80%
Clarity 50%-252%
Metals 50-95%
Pathogens 50-90%

Advanced Biofiltration Research and Technology development has been an emerging science for the last 30 years. Installations in Australia, Malaysia and China and USA have demonstrated the feasibility of the technology, and its applications in aquaculture, stormwater treatment, sewerage and on-site sewage treatment, industrial effluent treatment, often for water re-use.

The Aqua Biofilter™ floating wetland treatment technology that can be utilised within a wetland treatment train either retro-fitting or designed into future wetlands. Detention basins can be designed larger & deeper, effectively providing more storage and HRT. Wetlands can also be sized smaller as a result, bringing down costs, achieving best practice and effectively treating TN, TP, TSS and reducing heavy metals. Ecological and human health can benefit from floating wetlands, and biomimicy of natural systems restores natural balance.


 
 
 

NEWS

Sydney Olympic Park Authority floating islands habitat for migratory birds
World first marine specie saltmarsh floating islands for migratory water bird habitat. Tidal estuary height differential of 1m. Installed 2 islands at 60m2, total of 120m2 June 2012. Black swiftlets, black swans and migratory birds will use the floating islands for habitat.

WME Environment Management Magazine Article on Aqua Biofilter™
Floating wetlands and reedbeds installed in China, covering acres of lake and fish ponds with rice, canna lily, sedges. Lake Taihu lake water improved from Class 5 dirty water, up to Class 1 Freshwater Lake class in 3 months.

YouTube clip explains floating reedbeds activity during rainfall events in Gold Coast sediment ponds
http://www.youtube.com/watch?v=GsyDIe6Kx4k

Bega Urban Wetlands
Results indicate strong root and shoot growth of Carex, doubling in size over 3 months, from 30cm at plant out to 2.2 metres length in 14 months.

Wagga Wagga Wetlands and Aquaculture Wastewater
Bolboschoenus & Vetiver excellent performers with root growth down to 50cm in just 3 months. Wastewater column high nutrient loads, large volume of salts uptake

Sewerage pond trial
Aqua Biofilter™ plants developed early with root and shoot growth, effectively reduced nutrient levels to prevent algal blooms

Salinity trial
Aqua Biofilter™ trial to extract salt with a Halophyte forage crop, indicates brackish water can be treated.

DOWNLOADS

Case Studies Research Document - Data
Aqua Biofilter™ founder Tom Duncan involved in trials in China and Australia published results at the National Stormwater Conference Australia, 2009. Download here

WME Environment Management Magazine Article on Aqua Biofilter™
Download article


 email: info@aquabiofilter.com

 
 
   

Copyright 2004 - 2014 Tom Duncan. All rights reserved.