Please select your home edition
Edition
Absolute Marine

Keeping it clean- How microscopic barriers could rescue the Reef

by GE Reports on 12 Apr 2014
Great Barrier Reef .. ©
An innovation from GE is purifying water all over the world! Next stop, the Great Barrier Reef.

It’s massive, it’s marvellous, and UNESCO is thinking about calling it endangered. Hugging the east coast of Queensland, Australia’s Great Barrier Reef covers 348,000 square kilometres, weaving in and out of island shallows, down to depths of 2,000 metres.

It boasts 900 islands, 2,500 individual reefs, 1,500 species of fish, 400 species of coral, 4,000 species of molluscs, and roughly 240 species of birds, which collectively form an ecosystem that’s vital to Queensland’s environment and economy.
However, warnings about the impact of contaminated water, climate change and invasive species are growing louder.

'Water quality, and behind that climate change, are among the main factors which are having an impact on the health and resilience of the reef,' said Dr Eva Abal, Chief Scientific Officer of the Great Barrier Reef Foundation, and Associate Professor of the Water Initiative at the University of Queensland.

Particles, nutrients and pesticides are among the greatest threats, a fact that’s inspiring farmers and various industries to change land management practices.

For example, Eva says fencing off waterways or using vegetation as a natural barrier can stop sediment running down through creeks and rivers, and out into the ocean.

Another challenge facing the reef is coastal development and population. Increased industry and population means increased wastewater.

Water filtration plants in Cairns and Townsville are using GE ZeeWeed membrane technology to catch miniscule particles of sediment, microbes and bacteria as small as 0.04 microns wide, before they reach the reef. These three plants can purify up to 190 million litres of wastewater per day.


'The water coming out of these plants doesn’t contain any solids, which further reduces the discharge of nutrients which endanger the reef, because these are often attached to solids,' said Chris Harpham, APAC Regional Technology Leader for GE Power & Water.

'This ZeeWeed water filtration process also removes the vast majority of the pathogens because they are too large to penetrate the membrane.'

Water filtration in both urban and regional areas will be one of the important strategies needed to preserve the Great Barrier Reef in the decades ahead.

'You can’t compartmentalise the threats and say ‘it’s just about climate change, or just about water quality,’ because all of these factors are having an impact,' Dr Abal said.

'One thing we do know is that by reducing one threat we improve the likelihood that the reef will respond well in the face of other threats, protecting the reef by making it more resilient.'

Sifting through ZeeWeed: How it works
GE ZeeWeed technology is based on nylon fibre membranes coated with a synthetic resin called polyvinylidene difluoride. This creates a super fine, but highly stable membrane, that moves in the water like seaweed in the ocean.

The ZeeWeed membrane has perforations 400 times smaller than the diameter of a human hair, which let water through while capturing sediments, pathogens, protozoa and bacteria.

The membranes are cleaned every 10–15 minutes using a reverse flow and aeration technique that pushes cleaned water back through the membrane to clear the surface of the microscopic debris it’s designed to capture.

More at www.gewater.com/products/zeeweed-500-membrane.html

Sydney Harbour Boat Storage 660x82Absolute MarineYamaha Motor NZ - Realiability Starts

Related Articles

Lowrance® announces new widescreen Elite-TI Displays
Lowrance® announced addition of a pair of widescreen displays to Elite Ti standalone series of fishfinder/chartplotters. Lowrance®, a world-leading brand in fishing electronics since 1957, announced today the addition of a pair of widescreen displays to the Elite Ti standalone series of fishfinder/chartplotters.
Posted today at 5:00 am
Great Barrier Reef managers and industry prepare for summer
Marine park managers, scientists and experts recently met for the annual pre-summer workshop Marine park managers, scientists and experts recently met for the annual pre-summer workshop to assess climate-related risks to the Great Barrier Reef over the coming months. Current predictions by the Bureau of Meteorology and National Oceanic and Atmospheric Administration are for a summer of average sea temperatures across the Great Barrier Reef.
Posted on 7 Dec
Great Barrier Reef managers and industry prepare for summer
Marine park managers, scientists and experts recently met for the annual pre-summer workshop Marine park managers, scientists and experts recently met for the annual pre-summer workshop to assess climate-related risks to the Great Barrier Reef over the coming months. Current predictions by the Bureau of Meteorology and National Oceanic and Atmospheric Administration are for a summer of average sea temperatures across the Great Barrier Reef.
Posted on 7 Dec
Introducing the Airbnb of the mooring and marina world
Have you ever struggled to find an available mooring, or do you have a mooring that is sitting vacant? Have you ever struggled to find an available mooring, or do you have a mooring that is sitting vacant? makefastmooring.com is aiming to solve this problem by connecting boat owners with those with vacant moorings or berths. With a growing number of moorings and marinas in New Zealand, Australia and around the world, makefastmooring.com allows people to find, rent and share moorings and berths.
Posted on 7 Dec
Introducing the Airbnb of the mooring and marina world
Have you ever struggled to find an available mooring, or do you have a mooring that is sitting vacant? Have you ever struggled to find an available mooring, or do you have a mooring that is sitting vacant? makefastmooring.com is aiming to solve this problem by connecting boat owners with those with vacant moorings or berths. With a growing number of moorings and marinas in New Zealand, Australia and around the world, makefastmooring.com allows people to find, rent and share moorings and berths.
Posted on 7 Dec
Yamaha announce Summer Outboard Cash Back offer
Yamaha is excited to announce the launch of a new summer retail promotion, offering customers a cash back redemption Yamaha is excited to announce the launch of a new summer retail promotion, offering customers a cash back redemption on portable and mid-power four stroke models in the range from 2.5 to 80 horsepower. This new promotion comes at a great time for customers who are looking to get on the water for the upcoming holiday season.
Posted on 7 Dec
Yamaha announce the F25 - with a 25% weight reduction
Yamaha's innovative new F25 is around 25% lighter, giving it a unique and unrivalled power-to-weight performance Yamaha's innovative new F25 is around 25% lighter, giving it a unique and unrivalled power-to-weight performance. It's not often an outboard is launched which truly leads its class by such a significant margin, but the new Yamaha F25 is just such an engine.
Posted on 7 Dec
Twin Disc redefines Marine Power Steering
Redefining power steering, Twin Disc offers its next-generation E-STEER™. Redefining power steering, Twin Disc offers its next-generation E-STEER™. This state-of-the-art control solution connects the helm to hydraulic-powered rudder(s) electronically and delivers a whole new driving experience.
Posted on 3 Dec
New VicEmergency app launched
The new VicEmergency app provides Victorians with access to warnings and incidents for fires, floods and water safety. The new VicEmergency app provides Victorians with access to warnings and incidents for fires, floods, storms, earthquake, tsunamis and water safety.
Posted on 2 Dec
Princess to pay largest ever criminal penalty for vessel pollution
Princess Cruise Lines has agreed to plead guilty to seven felony charges stemming from deliberate pollution of the seas Princess Cruise Lines Ltd. (Princess) has agreed to plead guilty to seven felony charges stemming from its deliberate pollution of the seas and intentional acts to cover it up. Princess will pay a $40 million penalty– the largest-ever criminal penalty involving deliberate vessel pollution – and plead guilty to charges related to illegal dumping of oil contaminated waste from the cruise ship.
Posted on 2 Dec