Do You Need A Wastewater Management System?
Our Eco- Friendly Septic Tank System is the Perfect Solution.
Home owners in unsewered areas can choose greener systems than traditional septics
Many years ago, John Eldridge decided to retrofit the septic tank on his Red Hill property with aĀ worm farmĀ wastewater management system. The system, made by Worm Farm Waste Systems in Dromana, works the same way as the forest floor, he says. āIn the forest youāve got all sorts of things dropping out of the trees ā twigs, bird poo, the odd dead bird ā and the water that falls is filtered through it.
āAt the top of the pile the material is coarse, but as it moves down it is broken down more finely.ā
His wastewater management system mimics the natural composting process. āThe material disintegrates in the liquid. We never need to pump it out and there is absolutely no smell at all,ā he says. āWe noticed a huge difference.ā
His wastewater management system mimics the natural composting process. āThe material disintegrates in the liquid. We never need to pump it out and there is absolutely no smell at all,ā he says. āWe noticed a huge difference.ā
Septic tanks are still the most common wastewater management system in unsewered parts of Australia, but they donāt actively treat the wastewater to remove pathogens. The effluent must be disposed of in trenches more than a foot deep, and the tanks regularly pumped out.
Like a septic tank, Mr Eldridgeās worm farm is classified as a primary treatment system.
Sarah West, fromĀ Environment Protection Authority Victoria, says secondary treatment systems are best for recycling the nutrients found in wastewater, by way of subsurface irrigation. There are many kinds available, including aeration systems, reed beds, sand filters and trickle filters, and some worm farms.
āWith any of those higher-quality secondary treatment systems, you are permitted to irrigate the effluent through the garden in the topsoil layer, where plants reuse the nutrients in the water,ā Ms West says.
āThose nutrients are a resource, but septic tank trenches are too deep in the soil for most plants to access them.ā
If you are planning a wastewater system in an unsewered area, Ms West suggests you first consider how youād like to reuse the treated effluent. āDo you want to irrigate the garden, or use it in the home for toilet flushing?ā she asks. āTo recycle it back into the house, you need to choose a greywater treatment system approved for toilet flushing.ā
But if you just want the treated water to irrigate the garden, you can use an all-waste method such as those described above. Be sure to obtain a permit from your localĀ council.
The various technologies have very different ongoing costs. āFind out how often the system has to be serviced and how much electricity it consumes,ā Ms West recommends. āAsk about the cost of spare parts and consumables ā some need chlorine tablets or a new UV lamp every year.ā
In Red Hill, Mr Eldridge opted for the worm farm wastewater management system because it requires minimal ongoing maintenance and no chemical additives, and uses little power. āWe have a small pump at the bottom of the tank, but it doesnāt run for very long,ā he says. āThe other advantage for us is that we can put any other organic matter in there, so it is an easy way to reduce our waste to landfill.ā
The worms chomp through black and greywater, together with organic material such as veggie scraps, some weeds and garden clippings. For a typical three-bedroom house, a new system costs about $11,000 to $13,000, including installation.
Have Listen to what John has to say
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For more information on Worm Farm Sewage and Wastewater Management Systems callĀ 03 5979 1887.