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Title:
DEHYDRATOR FOR TREATING CIVIL ENGINEERING AND CONSTRUCTION SLUDGE
Document Type and Number:
Japanese Patent JP2008229497
Kind Code:
A
Abstract:

To provide a dehydrator for treating civil engineering and construction sludge capable of performing the dehydration treatment of civil engineering and construction sludge, which is discharged at the time of engineering works and building work, at a low cost to obtain a dehydrated cake low in water content.

The dehydrator for civil engineering and construction sludge contains an amphoteric polymeric flocculant, an anionic or nonionic polymeric flocculant and a water soluble salt. If this dehydrator is used, the civil engineering and construction sludge discharged at the time of engineering works and building work can be dehydrated at a low cost and the dehydrated cake low in water content can be obtained.


Inventors:
TANABE SHIGERU
KASHIWABARA TAKAHIRO
Application Number:
JP2007072776A
Publication Date:
October 02, 2008
Filing Date:
March 20, 2007
Export Citation:
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Assignee:
DAIYANITORIKKUSU KK
International Classes:
C02F11/14; B01D21/01; E02D1/00
Domestic Patent References:
JP2007061718A2007-03-15
JPH04193308A1992-07-13
JPH10176064A1998-06-30
JP2004160399A2004-06-10
JP2000325966A2000-11-28
JPH10272306A1998-10-13
JPH0538404A1993-02-19
JP2001049981A2001-02-20
JPS5516718B21980-05-06
JP54155186B
JP2005305271A2005-11-04
JP2005013815A2005-01-20
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama



 
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