Application Type of work
   
1- Breakwaters;
2- Revetments and seawalls;
4- Waterway banks;
 
TECHNICAL REFERENCES
Reference Projects  

- Uji River
- Shinano River
- Kurobe River, etc.
Bibliography

- Brochure
(Design Manual for Filter Unit)

- Public Works Research Institute: Technical examination proof No.1003 on “Kyowa Filter Unit Type I and II”, April, 1998 (in Japanese)
Invention & Development Kyowa Co., Ltd.
Patent: US6305876B1(U.S.A.) (expiry date: 30 October, 2018)

 

 

 

 

 

 

 

 

 

COmMERCIAL REFERENCES
TETRA Co., Ltd.
Environmental Engineering Center
Attn: Mr. M. Hanzawa
2-7 Higashi Nakanuki, Tsuchiura
Ibaraki, 300-0006, Japan
Tel +81-298-31-7411, Fax +81-298-31-7693
Website: http://www.tetra.co.jp
e-mail: hanzawa@tetra.co.jp
  

 

 

SHAPE

Before filling
till-material		 After installation

(2 types : Type-I and Type II)

 

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NAME Filter unit