Dewatering Fish Tanks & Packages
Dewatering “fish” tanks are containers or boxes used for treating water in construction sites, tunnels, and other facilities that can benefit from the pretreatment of dirty water, like mines and remote sites. These tanks work as a collection point for multiple sumps before transferring to another fish tank further up the shaft or to the surface. They effectively pretreat large solids and a high percentage of sludge without moving parts, helping protect water treatment plants and equipment upstream. Dewatering fish tanks are simple to use with low maintenance requirements and easy to transport when disposing of waste.
OUR STANDARD CHOICE FOR FISH TANKS IS GALVANISED STEEL WHICH IS 5X MORE RUST RESISTANT THAN PAINTED STEEL.
Features & Benefits
Cost-effective solution for dewatering
- Saves having multiple permanent sumps
- Protects and helps your pumps last longer
- Allows for greater water retention on site in case of heavy rain
- Ready to go instantly, plug-and-play installation with a fish tank kit
Sludge and Solids Removal
- With improved fluid dynamics, our dewatering box maximises solids removal
- Inbuilt Weir Walls create settlement chambers, allowing solids to settle and water to flow
- Filters large particles and trash that would damage parts upstream
- Option to add removable partitions for increased separation
High Durability
- Tougher – Mounted on a drag skid with oversized lifting points
- NDT MPT weld testing for quality as standard
- Stronger external frame on larger models to cope with higher sludge loads
- Made in Australia and tested in our workshop prior to shipping
Available Options
- Custom-configured drains and valves
- Submersible sludge pump options
- Custom paint
- Custom frame/skid
- Removable and additional partitions
Applications
All-Pumps designs and manufactures a comprehensive range of dewatering fish tanks to cater to different dewatering situations. Our dewatering fish tanks have special filtering systems to separate liquid from solids or sludge before discharging waste for easy transport to its final approved destination. They are built using robust materials, offering long service life and come with many options for dewatering pumps.
We also offer a complete dewatering package with our range of reliable sludge pumps from Tsurumi – featuring GPN35.5 and KTV2-80 – to clean up the sediment side of the fish tank.
What are dewatering fish tanks used for?
- Sludge control and disposal in oil or chemical refinery applications where pumps may not be an option
- Filtration of some liquid waste streams with the use of a clarifier, disposable cloth filter, or chemical coagulants
- Dewatering of digester sludge from wastewater treatment plants for disposal in landfills
- Applications where low maintenance is required, such as remote pipeline sites
What industries use All-Pumps dewatering fish tanks?
- Construction
- Mining/Quarry
- Tunnelling
- Dewatering of other industrial sites
HOW DO THE DEWATERING FISH TANKS WORK?
Our dewatering fish tank for mining, construction, and tunnelling solutions has multiple options for filling. Vacuum trucks and excavators can easily discharge sludge directly into the box. It can also be filled using hoses or pipes or via the filling point of the dewatering fish tank. After the tank is filled with sludge, the built-in weir wall screens solids during the primary treatment or in the first partition of the tank. The solids within the sludge start to settle at the bottom of the dewatering fish tank. The water with fewer particles is pumped to the second compartment and can now exit the tank via the drain valve. Settled solids can be emptied when the water is fully drained out.
Specs
| CAPACITY | LENGTH (mm) | WIDTH (mm) | DEPTH (mm) | APPROX WEIGHT W/ SKID (kg) |
|---|---|---|---|---|
| 2000 li/3m3 | 2270 mm | 1610 mm | 1250 mm | 0.9 tons |
| 3000 li/3m3 | 2270 mm | 1710 mm | 1450 mm | 1.0 tons |
| 5000 li/5m3 | 3650 mm | 1710 mm | 1750 mm | 1.3 tons |
| 9000 li/9m3 | 3900 mm | 2140 mm | 1850 mm | 1.8 tons |
| 15,000 li/17m3 | 6000 mm | 2210 mm | 1890 mm | 3.2 tons |
| 33,000 li/33m3 | On Request | On Request | On Request | On Request |
- Steel Grade Plate: AS/NZS 1594-HA250
- Steel Grade Structural: AS/NZS 3679.1-300, AS1163-C350L0
- Finish: HOT-DIPPED/PAINTED
It makes a lot of sense for smaller wastewater treatment applications that still use drying beds because dewatering fish tanks can help speed that process up. Operators are always looking to cut costs, and we believe this solution by All-Pumps is an easy way to help them do it.