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Page Title: Automated Sludge Removal With High-Density Dredger
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Automated Sludge Removal With High-Density Dredger
Category:
Dredge Plant
Description:
The dredger "Shin Ohmoto Maru" is equipped with a newly developed, input/output balance type
sludge collector to suck sludge by negative pressure, an automatic controller, and kick-spud-type
position control equipment. Combined with an operation control system to maximize the
dredger's performance and a GPS-aided construction control system, the vessel is capable of
performing efficient, high-density, automated dredging, while digging to design depth.
The fully automated control system is operated by two computers, consisting of four systems,
each responsible for control of:
1) Suction pump.
2) Sludge discharge pump.
3) Swing speed.
4) Advance by kick spuds.
The control systems for the sludge discharge pump and the advance by kick spuds can work
independently.
Reviewer:
C. Woolley
Company / Organization(s):
Projects Completed:
Lake Kojima
Location:
Lake Kojima, Japan
Completion Date:
1996 -2003
The Shin Ohmoto Maru has removed 220,000 m3 of sludge from the lake
Comments:
as of 12/97.
Information Sources:
Literature:
Title:
"Automated Sludge Removal By Using High Density Dredger"
Author:
S. Hara, Y. Hayase, H. Fujisawa, T. Hara, S. Satoh
Month:
June
Year:
1998
LitType:
Report/Proceedings
Publisher:
WODCON XV, Las Vegas
Page:
163
37
Chapter 5 Other Technologies Reviewed

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