Drainage water-treating method and drainage water-treating apparatus
AssigneeSharp Kabushiki Kaisha
InventorsKazuyuki Yamasaki, Kazuyuki Sakata, Kazumi Chuhjoh, Masaki Kataoka
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Abstract
Drainage water containing an organofluorine compound is introduced into a raw tank (1) and then filtered through a filtration device (4). Next, a microorganism, a micro-nanobubbling auxiliary agent and a nutrient are added thereto in a first transit tank (5) while micro-nanobubbles are generated thereinto by a micro-nanobubbling machine (7), thereby giving treated water. This treated water is then fed into an active carbon column (14) and then the above-described organofluorine compound contained in the treated water is decomposed by the microorganism as described above.
Claims23
A drainage water-treating method, comprising the steps of:
- propagating microorganisms on active carbon, the microorganisms having been activated with micro-nano bubbles and a nutrient;
- and
- bringing drainage water containing organofluorine compounds into contact with the active carbon so as to absorb the organofluorine compounds in the drainage water to the active carbon, and then to decompose the organofluorine compounds absorbed into the active carbon with use of the microorganisms.
A drainage water-treating apparatus, comprising:
- active carbon onto which microorganisms activated with micro-nano bubbles and a nutrient are propagated,
- wherein the active carbon is brought into contact with drainage water containing organofluorine compounds so as to absorb the organofluorine compounds in the drainage water, and then to decompose the absorbed organofluorine compounds with use of the microorganisms.
A drainage water-treating method, comprising the steps of:
- filtering drainage water containing organofluorine compounds;
- mixing microorganisms, a micro-nano bubble generation auxiliary agent and a nutrient into the filtered drainage water while adding micro-nano bubbles to the filtered drainage water so as to produce treatment water;
- and
- feeding the treatment water to an active carbon tower which houses active carbon so as to decompose the organofluorine compounds in the treatment water with use of the microorganisms.
A drainage water-treating apparatus, comprising:
- a filtration device for filtering drainage water containing organofluorine compounds;
- and
- an active carbon tower for housing active carbon,
- wherein the drainage water containing organofluorine compounds is filtered through the filtration device, and then microorganisms, a micro-nano bubble generation auxiliary agent and a nutrient are mixed into the drainage water while micro-nano bubbles are added to the drainage water to produce treatment water, and
- wherein the treatment water is fed to the active carbon tower so as to decompose the organofluorine compounds in the treatment water with use of the microorganisms.
Dependencies are inferred from the claim text.