ZebraTube® dewatering geobags offer a low cost, easy to implement solution for dewatering large sludge volumes from wastewater ponds and lagoons.
Simple
Sludge is pumped into the dewatering bag, which acts as a filter, allowing water to pass through but trapping the solids inside.
Scalable
We supply for small and large operations, removing biosolids, silt, metals, minerals and more from wastewater. Bag volumes range from 1m³ to 1000m³.
Smart
Reduce your slurry volume through dewatering to lower disposal costs or recover valuable filtrate.
SAVE 10% ON ALL IN-STOCK TUBES
GET A QUOTE
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Sizes range from 5m to 50m lengths
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5m and 10m geobags can be purchased directly online via our e-commerce store
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For larger sizes, call us on 0406 417 281 or email info@westwoodwater.com
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Discount applies to all geobags stocked in our Melbourne warehouse, 5m-50m
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Excludes hanging bags
SALE ENDS OCTOBER 31 OR UNTIL STOCK RUNS OUT
HOW DO THEY WORK?
ZebraTube® dewatering bags use woven polymer fabrics as semi-permeable membranes to trap the biosolids inside. Sludge is pumped in and the geotextile acts as a filter, allowing water to pass through but retaining the solid matter.
What's your sludge?
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Sewage
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Flocculated Sludge
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Activated Sludge
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Animal Waste
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Pulp & Paper
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Oily wastes
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Carbon Tailings
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Mineral Sands
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DAF Underflow
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Coal
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River Silt
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Gold Tailings
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Iron Ore
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Acid Mine Drainage Sludge
The dewatered sludge consolidates, reducing its volume and increasing solids concentration. This makes for easier, more cost effective disposal or further processing if needed.
Depending on the slurry, moisture contents between 40-60% are achievable in short dewatering times; even lower if bags are allowed to consolidate for longer periods.
What volume of wastewater are you handling?
For small operations, our 1 and 2 tonne hanging bags are ideal. You can buy these directly in our store.
For larger projects, we supply tubes from 5m up to 50m lengths.
Fill out the online form below for a quote, or for more information on sizes and pricing.
ZebraTube® case study example:
Dam Dredging and Dewatering, 40,000 m³
Silted up wastewater ponds need desludging to regain dam capacity.
ZebraTube® Geotextile Dewatering Tubes, aka geobags, efficiently and cost-effectively dewater large sludge volumes.
Sediment dredged from the pond is fed to the bags. Flocculant is commonly added when dewatering biosolids to agglomerate the particles. It is injected in-line, downstream from the dredger.
Sludge particles settle in the tube, forming a filter cake on the surface of the geotextile to enhance filtration efficiency.
For this project, 9 m circumference x 35 m length dewatering tubes were used to dewater and contain a dredged volume of 40,000 m³.
Dewatering tubes were stacked in two layers due to limited available laydown area. The geobags were placed on a HDPE liner, allowing filtrate to be channelled back into the pond.
Download the case study here.
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Share your project information, or ask to speak to one of our water treatment engineers
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