By Editorial staff La Dépêche de Tahiti
Published on 10 Mar 21 @ 11:33 am
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For many homeowners, the septic tank is often a big mystery. Some have never done an oil change, and do not even know where it is. Buried in a corner of the plot or under the garage, the device has sometimes disappeared in the vegetation or is made inaccessible under tiling … Its existence and its maintenance reappear when the sinks or the toilets no longer evacuate.
For beginners, you should know that since the time when a hole at the bottom of the garden was fine, techniques have evolved a lot. In Mahina, the very young Step-Up company has recently offered a product developed in Belgium in Tahiti. This is the Oxyfix wastewater treatment tank from Eloy Water. It couldn’t be simpler as a solution. The concrete sarcophagus measuring 2 by 2 meters (depending on the model) is buried and connected to the dirty water network (sink, washbasin, shower, toilet, etc.) and it takes care of everything.
89.75% clean water discharge
The tank is actually divided into three compartments. In the primary settling tank, the sludge is deposited, the wastewater then passes into the biological reactor where the magic operates. No perlimpine product, it is the oxygen which is blown into the water which allows bacteria to develop by feasting on the organic matter attached to species of balls in the shape of a honeycomb (Oxybee).
The cleaned water passes through a clarifier which returns the secondary sludge, deposited in the bottom of this third compartment, to the primary settling tank. Only the clarified water will be released into the soil after passing through an independent sump. Unlike “old-fashioned” septic tanks, wastewater does not end up seeping into the ground. The Oxyfix tank is waterproof, and would reject 89.75% clean water. One can imagine the interest of such a device in areas where the water tables are found under urbanized areas or very on the surface such as on atolls.
A system that has won over in the Pacific
To ensure the proper functioning of this tank, the owners must provide for an emptying of the primary settling tank every 5 years (count around 30,000 francs) and an annual visit (around 17,500 francs) for which a specialist will come and check the height of the sludge and analyze the discharged water. Also to offer you this little gem of technology, delivered, installed, connected, with its booster (for the biological reaction) and the sump, you will have to pay 790,000 francs. Since the product is tax-exempt, you will be the tenant for the first five years, and will benefit from 25% tax assistance after installation, ie a little less than 200,000 francs. It takes three months for delivery.
Managed by Guy Hort, the Step-Up company wishes to provide solutions to municipalities, subdivisions, buildings, with the advice of a representative of Eloy products for the Pacific; because the vats have won over New Caledonia, New Zealand and Australia. The Oxyfix system for the treatment of wastewater obtained approval from the hygiene department last August.
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