IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0524314
(2006-09-21)
|
등록번호 |
US-7641798
(2010-02-11)
|
우선권정보 |
JP-2005-281648(2005-09-28) |
발명자
/ 주소 |
- Yamasaki, Kazuyuki
- Sakata, Kazuyuki
- Chuhjoh, Kazumi
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
10 인용 특허 :
2 |
초록
▼
A waster water treatment apparatus has micro-nano bubbles generation tanks, mixing tanks, a submerged membrane tank, a contact oxidation tank, and an activated charcoal adsorption device. In the micro-nano bubbles generation tanks, micro-nano bubbles are added to the waste water. In the mixing tanks
A waster water treatment apparatus has micro-nano bubbles generation tanks, mixing tanks, a submerged membrane tank, a contact oxidation tank, and an activated charcoal adsorption device. In the micro-nano bubbles generation tanks, micro-nano bubbles are added to the waste water. In the mixing tanks, the waste water containing micro-nano bubbles is mixed with sludge containing microorganisms. In the contact oxidation tank, the waste water containing organofluoric compounds is microbially treated by the micro-nano bubbles added to the waste water. The micro-nano bubbles activate microorganisms in the waste water. Thereby organofluoric compounds are microbially decomposed with effect.
대표청구항
▼
The invention claimed is: 1. A waste water treatment method, comprising the steps of: introducing waste water as treatment-receiving-water into a first micro-nano bubble generation tank for adding micro-nano bubbles, which are micrometer and nanometer size bubbles, to the treatment-receiving-water;
The invention claimed is: 1. A waste water treatment method, comprising the steps of: introducing waste water as treatment-receiving-water into a first micro-nano bubble generation tank for adding micro-nano bubbles, which are micrometer and nanometer size bubbles, to the treatment-receiving-water; introducing the treatment-receiving-water containing the micro-nano bubbles into a first microbe tank for applying first-stage microbial treatment to the treatment-receiving-water; introducing the treatment-receiving-water, after application of the first-stage microbial treatment, into a second micro-nano bubble generation tank for adding the micro-nano bubbles to the treatment-receiving-water; and then introducing the treatment-receiving-water containing micro-nano bubbles into a second microbe tank for applying second-stage microbial treatment to the treatment-receiving-waste, wherein the waste water is waste water containing organofluoric compounds or organochlorine compounds. 2. A waste water treatment method, comprising the steps of: introducing waste water as treatment-receiving-water into a first micro-nano bubble generation tank for adding micro-nano bubbles, which are micrometer and nanometer size bubbles, to the treatment-receiving-water; introducing the treatment-receiving-water containing the micro-nano bubbles into a first microbe tank for applying first-stage microbial treatment to the treatment-receiving-water; introducing the treatment-receiving-water, after application of the first-stage microbial treatment, into a second micro-nano bubble generation tank for adding the micro-nano bubbles to the treatment-receiving-water; and then introducing the treatment-receiving-water containing micro-nano bubbles into a second microbe tank for applying second-stage microbial treatment to the treatment-receiving-waste, wherein the first-stage microbial treatment is microbial treatment in a submerged membrane tank having a submerged membrane for filtration, and the second-stage microbial treatment is microbial treatment with use of charcoal in a contact oxidation tank provided with the charcoal. 3. A waste water treatment method, comprising the steps of: introducing waste water as treatment-receiving-water into a first micro-nano bubble generation tank for adding micro-nano bubbles, which are micrometer and nanometer size bubbles, to the treatment-receiving-water; introducing the treatment-receiving-water containing the micro-nano bubbles into a first microbe tank for applying first-stage microbial treatment to the treatment-receiving-water; introducing the treatment-receiving-water, after application of the first-stage microbial treatment, into a second micro-nano bubble generation tank for adding the micro-nano bubbles to the treatment-receiving-water; and then introducing the treatment-receiving-water containing micro-nano bubbles into a second microbe tank for applying second-stage microbial treatment to the treatment-receiving-waste, comprising the steps of: introducing the treatment-receiving-water, after application of the second-stage microbial treatment, into a third micro-nano bubble generation tank for adding the micro-nano bubbles to the treatment-receiving-water; and then introducing the treatment-receiving-water containing the micro-nano bubbles into an activated charcoal adsorption device for applying activated charcoal treatment to the treatment-receiving-water. 4. The waste water treatment method according to claim 1, wherein the organofluoric compounds in the waste water containing the organofluoric compounds are either perfluorooctane sulfonic acid or perfluoro octanoic acid. 5. The waste water treatment method according to claim 2, comprising the steps of: introducing the treatment-receiving-water containing the micro-nano bubbles which comes from the first micro-nano bubble generation tank into a mixing tank, while sludge is pumped up from a lower portion of the submerged membrane tank by an air lift pump and introducing the sludge into the mixing tank; and mixing the treatment-receiving-water with the sludge in the mixing tank and introducing the treatment-receiving-water mixed with the sludge into the submerged membrane tank. 6. The waste water treatment method according to claim 3, wherein when the micro-nano bubbles are added to the treatment-receiving-water in the third micro-nano bubble generation tank, ozone from an ozonizer is fed to the third micro-nano bubble generation tank for generating ozone micro-nano bubbles so as to add the ozone micro-nano bubbles to the treatment-receiving-water. 7. A waste water treatment apparatus, comprising: a first micro-nano bubble generation tank receiving waste water, as treatment-receiving-water, introduced from outside and having a micro-nano bubble generator for generating micro-nano bubbles, which are micrometer and nanometer size bubbles, so as to add the micro-nano bubbles to the introduced treatment-receiving-water; a submerged membrane tank for applying microbial treatment, with use of microorganisms propagating in sludge, to the treatment-receiving-water containing the micro-nano bubbles and for filtering the treatment-receiving-water with use of the submerged membrane; a first mixing tank receiving the treatment-receiving-water containing micro-nano bubbles added in the first micro-nano bubble generation tank, and receiving the sludge having the microorganisms propagated in the submerged membrane tank for mixing the treatment-receiving-water with the sludge so as to introduce the treatment-receiving-water mixed with the sludge into the submerged membrane tank; a second micro-nano bubble generation tank having a micro-nano bubble generator for generating the micro-nano bubbles so as to add the micro-nano bubbles to the treatment-receiving-water introduced from the submerged membrane tank; a contact oxidation tank filled with charcoal for applying microbial treatment, with use of microorganisms propagated on the charcoal, to the treatment-receiving-water containing the micro-nano bubbles; a second mixing tank receiving the treatment-receiving-water containing micro-nano bubbles added in the second micro-nano bubble generation tank, and receiving the sludge having microorganisms propagated in the contact oxidation tank for mixing the treatment-receiving-water with the sludge so as to introduce the treatment-receiving-water mixed with the sludge into the contact oxidation tank; a third micro-nano bubble generation tank having a micro-nano bubble generator for generating the micro-nano bubbles so as to add the micro-nano bubbles to the treatment-receiving-water introduced from the contact oxidation tank; and an activated charcoal adsorption device receiving the treatment-receiving-water containing micro-nano bubbles added in the third micro-nano bubble generation tank, and filled with activated charcoal so as to apply microbial treatment, with use of microorganisms propagated on the activated charcoal, to the treatment-receiving-water. 8. The waste water treatment apparatus according to claim 7, wherein the submerged membrane tank is provided with a polyvinylidene chloride filling.
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