Installed Examples of ESROTAE Cubic Latticed Contactor - Biofilm Method Wastewater Treatment Equipment - Water Supply & Drainage Division

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Biofilm Method Wastewater Treatment Equipment: Installed Examples of ESROTAE

Water Supply & Drainage Division

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

Wastewater Treatment
Devices

Wastewater volume 100m³/day
(unit:mg/L)
	ESROTAE influent water	Effluent
BOD	800	20
SS	300	20

[Hiroshima Pref.]

Installation in 2008

Extension can be easily realized according to the amount of wastewater.

Four set‘s of ESROTAE type II were initially installed.

As wastewater volume increased, four more set‘s of ESROTAE type II were extended, and it was made a total of eight set‘s of facilities.

Flowsheet

Wastewater volume 100m³/day
(unit:mg/L)
	ESROTAE influent water	Effluent
BOD	1000	300
SS	400	300
n-Hex	80	30

[Osaka Pref.]

Installation in 2006

Existing treatment facility was renovated, stability was achieved and space conserved.

The existing treatment facility (tricking filter process) capacity was insufficient

Although there was not sufficient space, by combining types and simple placement, a small area could be utilized efficiently and stable treatment could be achieved.

Flowsheet

Wastewater volume 20m³/day
(unit:mg/L)
	ESROTAE influent water	Effluent
BOD	1600	600
SS	200	600
n-Hex	70	30

[Osaka Pref.]

Installation in 2006

Existing treatment facility was renovated, realizing stability.

The wastewater was contaminated by a high concentration of oil and approximately 300mg/L by n-hexane. Treatment was not possible at the existing facilities.

A retention period was created in the flow equalization tank and the appropriate microorganisms were added. Stable treatment could be achieved by ESROTAE.