Title:
雨水貯留槽
Document Type and Number:
Japanese Patent JP4740378
Kind Code:
B1
Abstract:
The invention provides an underground storage tank provided with rainwater purifying effect, and capable of making rainwater stored underground gradually penetrate into soil. The storage tank is provided with a storage part 10 for storing rainwater and dug underground, a glass foam 40, and a non-permeable plastic film 20 covering the bottom surface, the side surface, and the lower part of the storage part 10, the glass foam 40 in the storage part partially or fully embedded underground is manufactured in such a way that, glass wastes with particle sizes of 1mm-200mm are crushed to obtain glass powder, the glass powder is heated to a point above a softening point, and then is cooled, and rainwater in the storage part 10 can be alkalized until a pH value is more than 9 and rainwater can be stored, preventing rainwater corrosion.
Inventors:
Tetsuya Nabeshima
Akira Onuma
Yoshiaki Matsumoto
Akira Onuma
Yoshiaki Matsumoto
Application Number:
JP2010030866A
Publication Date:
August 03, 2011
Filing Date:
February 16, 2010
Export Citation:
Assignee:
Nabeshima Shoten Co., Ltd.
Techno Eco Co., Ltd.
Ibex inc.
Techno Eco Co., Ltd.
Ibex inc.
International Classes:
E03B3/02; E03B3/03; E03B11/14; E03F1/00
Domestic Patent References:
| JP2002097678A | ||||
| JP2009197486A | ||||
| JP2005350333A | ||||
| JP2010261198A |
Attorney, Agent or Firm:
High Shinichi Ara
Motoi Eguchi
Motoi Eguchi