Claims
- 1. A method for waste water treatment, comprising steps of:
- introducing treatment-object water pretreated in a pretreatment process into a contact circulation part having a cultivation bed on which an aquatic plant has been grown and charcoal in which microorganisms have been grown, so that the contact circulation part is submerged in the treatment-object water;
- introducing malodorous gas to the contact circulation part;
- lifting the treatment-object water from the contact circulation part by an air lift pump and sprinkling the treatment-object water onto a sprinkling circulation part having the charcoal in which microorganisms have been grown; and
- returning the treatment-object water that has passed through the sprinkling circulation part to the contact circulation part.
- 2. The method for waste water treatment according to claim 1, further comprising a step of:
- culturing inside the contact circulation part an aquatic plant which has been accelerated in rate of growth of leaves and roots by improvement of breed and which has been mass cultured by biotechnology.
- 3. The method for waste water treatment according to claim 1, further comprising a step of:
- growing on the cultivation bed an aquatic plant picked from a river into which waste water is discharged.
Priority Claims (1)
Number |
Date |
Country |
Kind |
5-278181 |
Nov 1993 |
JPX |
|
Parent Case Info
This is a Rule 60 Divisional of application Ser. No. 08/336,680, filed 7 Nov. 1994, now U.S. Pat. No. 5,599,443.
US Referenced Citations (7)
Foreign Referenced Citations (9)
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Mar 1989 |
EPX |
2539407 |
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FRX |
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Aug 1990 |
DEX |
64-43306 |
Feb 1989 |
JPX |
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Apr 1989 |
JPX |
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Feb 1990 |
JPX |
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Apr 1992 |
JPX |
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May 1985 |
WOX |
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WOX |
Non-Patent Literature Citations (2)
Entry |
Patent Abstracts of Japan, vol. 018 No. 456, 25 Aug. 1994, Abstract. |
Database WPI, Section ch, Week 7914, Derwent Publications Ltd., GB; Abstract. |
Divisions (1)
|
Number |
Date |
Country |
Parent |
336680 |
Nov 1994 |
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