Habuki™

A pretreatment technology with an innovative rotating fiber unit
for oxidation ditch sewage treatment

Habuki™

A pretreatment technology with an innovative rotating fiber unit for oxidation ditch sewage treatment

Build sustainable infrastructure by enhancing sewage plant treatment capacity and cutting energy consumption

Habuki™ is a new sewage treatment system and a major advance over conventional rotating biological contactors. It brings a pretreatment solution to the oxidation ditch process, introduces an innovative 3D mesh structure, and deploys a high density active biomass of Bacillus aerobic bacteria.

Habuki™ is compact and consumes little power, but its high treatment capability delivers shorter sewage treatment times than the conventional oxidation ditch process.

With Habuki™, we can optimize facility scale, reduce operating costs, and help our clients to solve problems. 

Features of Habuki™


Three winning reductions


1. Rotating fiber unit (2m diameter) x 30
2. Rotation speed of 3-8 rotations a minute
3. Diffusion to washing and reducing sludge on the rotating fiber unit and agitation

1. Rotating fiber unit (2m diameter) x 30
2. Rotation speed of 3-8 rotations a minute
3. Diffusion to washing and reducing sludge on the rotating fiber unit and agitation

Feature 1: Reductions in costs

Quickly reduces the reaction tank load, and reduces the power consumed by aeration in the reaction tank.

- BOD: biochemical oxygen demand, the amount of oxygen required to decompose organic matter in the water (mg/l)
- HRT: hydraulic residence time

Feature 2. Reductions in space

High-load operation with a very large volume of microorganisms can reduce the number of reaction tank lines.

Feature 3. Reductions in complexity

A simple structure, easy to maintain.
The fiber unit can be changed in 1 or 2 days.

The load of the reaction tank can be reduced.

Expected benefits

Process example with Habuki™

Treating sewage by Habuki™ before the reaction tank removes BOD and nitrogen in a short time.
Reduces the load on the reaction tank and reduces the power consumption for aeration.

※2 Nutrient: Main component is a mineral used to dominate useful microorganisms. The nutrient dilutes the undiluted solution and feeds it to the system.  
※3  Since outlet water of Habuki™ contains return sludge, the solubility BOD and T-N are measured.