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For systems larger than 10 m³/day BioKube systems are individually designed and built according to the specific requirements for the individual installation.

The systems are however all based on the same basic technology of submerged aerated filters. The only real difference between the different sizes being the size of the tank containing the BioBlocks. More sewage water requires more bacteria and therefore bigger BioBlocks.

Biokube Jupiter systems.  (10 - 90 m³ / day)

	One of the three BioKube/15 tanks for a BioKube 225 PE system (45 m3/day) The picture also illustrates that there is a practical limitation to how big a system can be delivered ready to install. Delivered as a single tank unit, this size would be a 15 m3 pr day system. As single tank unit, the tank is subdivided into 3 separate chambers.
	BioKube 225 PE System (45 m3/day) installed in a small village. The system is built in 3 identical tanks that as individual single tank units each with 3 internal chambers would clean 15 m3/day. The cleaned sewage water is outlet directly to a small lake in the city centre. The biggest system we deliver ready to install is a 450 PE system (90 m3/day) This is then delivered as a systems containing 6 BioKube/15 cleaning units.
	BioKube 200 PE system showing: a)      the 3 cleaning chambers each with aerated submerged filters and settlement zone b)      Pre-settlement tank c)      External pump well to control in pumping of sewage water from pre settlement tank to the cleaning units d)      Technique box with GSM system to remotely control and monitor the system

BioKube 450 PE system (90 m³/day)

The biggest systems we deliver ready to install are 450 PE systems (90 m³/day).

This will consist of 6 BioKube/15 cleaning units in separate tanks. Each BioKube/15 has the capability of cleaning 15 m³/ day. Put in series, a 450 PE BioKube is built as two 225 PE systems in parallel each containing 3 chambers

The Biokube/15 cleaning unit each contains 24 BioBlocks with 16 diffusers. The air supply is central. One large blower supplies all 16 diffusers in each chamber. The BioKube/15 is self cleaning because it is fitted with 4 airlift pumps, which return the produced sludge to the pre-settlement tank.

BioKube  Bio-reactor Systems (90 – 1.500 m³/day)

As the pictures covering BioKube 15 – 90 m³/day systems show, there is a practical limit to how large a system it is possible to ship as a finished systems ready to install. For this reason BioKube also offers systems where the active cleaning units are installed in previously on site built concrete tanks.

The necessary size of the tanks is roughly twice the size of the daily amount of sewage water to be cleaned. This volume allows 36 hours retention time for the sewage water in the cleaning unit plus room for the pre-cleaning unit and the necessary sludge handling system.

Since the cleaning of sewage water with the BioKube-system is performed by natural bacteria living on submerged aerated filters (BioBlocks) it is much more cost-effective to deliver only the active cleaning unit from outside and install these in an on-site built concrete tank.

The biggest Active cleaning unit we deliver is BioKube/50. Each of these units will clean 50 m³/day.

	Biokube/50 A BioKube/50 cleaning unit will clean 50 m3 of sewage water pr day. Built with 3 chambers, the smallest system with BioKube/50 cleaning units will clean 150 m3 sewage water pr. day. Each BioKube/50 cleaning unit contains 80 Bioblocks. Each BioKube/50 cleaning unit is delivered in one 20’ standard shipping container.
	The concrete tank for a BioKube/50 system being built. The picture shows the necessary size for a system to clean 400 m3/day. The water is retained in the cleaning chambers for 36 hours so for a 400 m3 system the tank measures 4 x 10 x 20 m including space for a pre cleaning unit and sludge removal.

A BioKube sewage treatment system contains a large settling zone surrounding each cleaning unit to ensure the removal of all sludge produced during the cleaning process. A complete BioKube wastewater plant will therefore if delivered as a ready to install system contain very much air. It is therefore quite rational to offer a sewage treatment system, where the tank which is to contain the cleaning units is built “on location”, typically in concrete.

BioKube Bio-reactor systems mean that BioKube delivers all the active cleaning units and related hardware. The large cleaning units and other hardware are then shipped in standard 20’ containers ready to install in the on site built concrete tank.

As an example, a system for cleaning sewage water for 2.000 persons (i.e. 400 m³/day) will require 8 BioKube/50 cleaning units. Each cleaning unit is shipped in a 20’ standard transport container ready to install. We also deliver one 20’ container to act as office and technique room for the plant.

The concrete tank, which houses the wastewater treatment system, is then built on-site. For a system cleaning 400 m³/day the concrete tank will, including buffer tank, pre cleaning tank and sludge removal have a size of 800 m³. This gives space for 36 hours retention time in the cleaning zone plus room for the pre cleaning unit and sludge removal.

BioKube Bio-reactor systems are designed based on the same standard BioKube concept of the sewage water being cleaned in 3 steps and consequently in 3 chambers. Where the requirements are less stringent, there might be only 2 cleaning chambers. Each BioKube cleaning unit comes completely equipped with the necessary air blowers, diffusers and airlift pumps etc.

Food Processing Applications

Systems are designed to order.  Pre-cleaning systems are installed to suit the application.  Biokube bio-reactors are sized according to the level of cleaning that is required.

Our technology could be used in bigger systems than 1.500 m³/day, but for systems this size it is normally cheaper to install a system based on active sludge technology. However a bigger Bio­Kube system than 1.500 m³/day could be desirable because of the lower degree of maintenance. A BioKube system can also handle greater variations in the daily organic load; this is for instance the case in a vegetable factory where different types of vegetables are treated over the year.