AQUACUBE - Biofilm Method Wastewater Treatment Equipment - Water Supply & Drainage Division

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Biofilm Method Wastewater Treatment Equipment: Installed Examples of AQUACUBE

Water Supply & Drainage Division

Dehydrators
- CS type
- BPS type
- L type
- SX type
- NS type
- Coagulants

Wastewater Treatment
Devices

Wastewater volume 400m³/day
(unit:mg/L)
	Influent to carrier tank	Effluent
BOD	840	300
SS	100	300
COD	290	—
n-Hex	110	30

[Hokkaido]

Installation in 2002

Reduction in the size of the facility and in the amount of excess sludge.

In the activated sludge process, a large facility area is required and a large quantity of Excess Sludge is produced.

By adopting AQUACUBE, miniaturization of the treatment facility and reduction of Excess Sludge is achieved.

Flowsheet

Wastewater volume 150m³/day
(unit:mg/L)
	Influent to carrier tank	Effluent
BOD	1300	20
SS	350	30
COD	400	20
n-Hex	180	15

[Kagawa Pref.]

Installation in 2007

It can function to immobilize oil and fat degrading bacteria.

In the activated sludge process, there were some concerns about maintaining stable sludge conditions to due to the high amount of oil and fat contained in the drainage.

The combination of SKBiO and ACUACUBE enabled immobilization of oil-degrading microorganisms and consequently realized stable treatment of oil and fat.

Flowsheet

Wastewater volume 300m³/day
(unit:mg/L)
	Influent to carrier tank	Effluent
BOD	300	30
SS	600	30

[Ibaraki Pref.]

Installation in 2008

Realized stable treatment by improvement of the existing clogged contactor in aeration tank.

As the load for the existing contactor aeration tank was high, and sludge clogged in contactor material, making the treatment unstable.

By adopting AQUACUBE, here were no more clogs of the contactor material, making stable treatment possible.