FORM-2


THE PATENTS ACT. 1970
(39 of 1970)
AND
THE PATENTS RULES, 2003 COMPLETE SPECIFICATION
(See Section 10; Rule 13)
1. TITLE OF THE INVENTION:
"Improved Fluidised Media Reactor"
2. APPLICANT:
(a) NAME: ION EXCHAGE (INDIA) LIMITED.
(b) NATIONALITY: AN INDIAN COMPANY INCORPORATE UNDER
THE COMPANIES ACT, 1956.
(c) ADDRESS: TIECICON HOUSE,
DR. E. MOSES ROAD,
MAHALAXMI, MUMBAI-400 011, MAHARASHTRA, INDIA.

The following specification describes the nature of the invention and the manner in which it is to be performed:-
1


An Improved Fluidized Media Reactor
3. PREAMBLE TO THE DESCRIPTION
Field of Invention
The present invention relates to an improved fluidized media reactor i.e. a system devised for sanitization and/or purification of water and more particularly the invention relates to an electrolytic purification system for aqueous solutions
Background of the Invention & the Related Art
The biological treatment of sewage with the introduction of air at the bottom of the tank for respiration is an existing method and the same is currently used extensively. By using the fluidized media technique for increasing the biomass concentration and effective retention of the particular bacterial species for effective treatment of the sewage or industrial wastewater is also an existing practice.
The conventional biological method requires a large aeration tank, separate clarifier and chlorine contact tank for the treatment of organic wastewater and its disinfection. In case of the existing fluidized aerobic treatment methods, they require two stage or single stage system for biological treatment, clarifier for separation of biomass, chlorine contact tank for disinfection. The number of units is more in these systems occupying a larger area.
4. DESCRIPTION OF THE INVENTION
OBJECTS OF THE INVENTION:
The objective of the invention is to make a product which addresses the present limitations and to incorporate following important features:
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1. A single unit system which will have the biological treatment, the sedimentation and the chlorination in single tank.
2. A Compact system which occupies a lesser area.
3. A system which is able to avoid the sludge recirculation.
4. A simple to operate, by reducing number of units and avoiding the sludge recirculation control.
PREFERRED EMBODIMENT OF THE INVENTION:
An improved fluidized media reactor (FMR) as the name indicates consists of the floating media of various shapes and sizes. The main objective of adding this media is to make available a more surface area for the bacteria to grow on, thereby maintaining and retaining maximum possible bacterial population in a limited volume. An improved fluidized media reactor (FMR), the media is made of either polyvinyl chloride (PVC), polypropylene (PP) or polyurethane foam. The media can be in the form of the rings, the cylindrical or the cuboids/ An improved fluidized media reactor (FMR) consists of combination of the biomass in the attached as well as in the suspended form. The high concentration of the biomass enables the reduction of the size of the aeration tank and in turn reduction in the overall cost. The volume of the media shall vary from 5% to 50% based on the concentration of organic matter.
Another main feature of an improved fluidized media reactor (FMR) is its compactness. As the figure 2 indicates, an improved fluidized media reactor (FMR) consists of a biological system for removal of the organic matter (BOD, COD), lamella for clarification and the chlorine contact tank for the disinfection. As all the units are placed inside a single tank, it saves the space and also increases the operational ease.
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In an improved fluidized media reactor (FMR), the raw sewage enters at the top of the tank. The air is introduced at the bottom of the tank through the fine bubble diffusers. The media will be in suspension because of the turbulence created by the air. The bacteria required for the oxidation of the organic matter is attached to the media and some part of the same is suspended in the tank. After oxidation, the bacteria grow in number and needs to be separated from the aeration tank liquor. The lamella section inside an improved fluidized media reactor (FMR) helps in clarification and separation of the bacteria (sludge) and clear overflow flows into chlorine contact tank. The lamella plates help in increasing the settling area and removing the particles effectively in a smaller plan area. In the chlorine contact tank, the sodium hypochlorite (NaOCl) is added for disinfecting the clarified sewage. The baffle plates are provided to make the better contact. The chlorinated treated sewage then flows out of an improved fluidized media reactor (FMR) either for the further treatment or for the disposal and the completely clarified water is taken out of an improved fluidized media reactor (FMR) through the outlet.
(Graphically described in the figure enclosed)
Figure enclosed is schematic diagram of an improved fluidized media reactor.
DRAWINGS - REFERENCE NUMERALS
1. Inlet for the raw sewage.
2. Aeration tank.
3. Bottom of the aeration tank.
4. Bubble diffusers for introducing air at the bottom of the aeration tank.
5. Air being introduced through bubble diffusers at the bottom of the aeration tank.
6. Media with bacteria attached to it.
7. Raw sewage.
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8. Lamella section.
9. Chlorine contact tank.
10. Sodium hypochlorite (NaOCl) in the chlorine contact tank.
11. Clear overflow outlet.
12. Top of the aeration tank.
13. Sludge.
14. Sludge outlet.
15. Chlorinated treated sewage.
In an improved fluidized media reactor (FMR), the raw sewage (7) enters at the top (12) of the aeration tank (2) through the inlet for the raw sewage (1). The air (5) is introduced at the bottom of the aeration tank (3) through the fine bubble diffusers (4). The media (6) in the aeration tank (12) will be in suspension because of the turbulence created by the air (5). The bacteria required for the oxidation of the organic matter is attached to the media (6) and some part of the same is suspended in the aeration tank (12). After oxidation, the bacteria grow in number and needs to be separated from the aeration tank (12). The lamella section (8) inside an improved fluidized media reactor (FMR) helps in clarification and separation of the bacteria (sludge) (13) and clear overflow flows into chlorine contact tank (9). The lamella plates (8) help in increasing the settling area and removing the particles effectively in a smaller plan area. In the chlorine contact tank (9), the sodium hypochlorite (NaOCl) (10) is added for disinfecting the clarified sewage. The baffle plates are provided to make the better contact. The chlorinated treated sewage (15) then flows out of an improved fluidized media reactor (FMR) either for the further treatment or for the disposal through clear overflow outlet (11) and the sludge (13) is taken out of an improved fluidized , media reactor (FMR) through the sludge outlet (14).
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5. We claim:
1. An improved fluidized media reactor (FMR).
2. An improved fluiclized media reactor (FMR) as claimed in claim l, having the inlet for raw sewage (1) at the top (12) of the aeration tank (2) for allowing the entry of the raw sewage (7) in n improved fluidized media reactor (FMR).
3. An improved fluiclized media reactor (FMR) as claimed in claim 1 & 2, having the fine bubble diffusers (4) through which the air (5) being introduced at the bottom of the aeration tank (3).
4. An improved fluidized media reactor (FMR) as claimed in claim 1, 2 & 3, having the media (6) in the aeration tank (12) being in suspension because of the turbulence created by the air (5).
5. An improved fluidized media reactor (FMR) as claimed in claim 1, 2, 3 & 4, having the bacteria required for the oxidation of the organic matter being attached to the media (6) and some part of the same being suspended in the aeration tank (12).
6. An improved fluidized media reactor (FMR) as claimed in claim 1, 2, 3, 4 & 5, after oxidation, the bacteria growing in number and needing to be separated from the aeration tank (12).
7. An improved fluidized media reactor (FMR) as claimed in claim 1, 2, 3, 4, 5 & 6 having the lamella section (8) inside an improved fluidized media reactor (FMR) helping in clarification and separation of the bacteria (sludge) (13).
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Sanjeev Niphadkar,
Agent for the Applicant,
Ion Exchange (India) Limited.
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8. An improved fluidized media reactor (FMR) as claimed in claim 1, 2, 3, 4, 5, 6 & 7, the clear overflow flowing into the chlorine contact tank (9) and the lamella plates (8) helping in increasing the settling area and removing the particles effectively in a smaller plan area.
9. An improved fluidized media reactor (FMR) as claimed in claim 1, 2, 3, 4, 5, 6, 7 & 8 within the chlorine contact tank (9), the sodium hypochlorite (NaOCl) (10) being added for disinfecting the clarified sewage.
10. An improved fluidized media reactor (FMR) as claimed in claim 1, 2, 3, 4, 5, 6, 7, 8 & 9 the chlorinated treated sewage (15) then flowing out of an improved fluidized media reactor (FMR) either for the further treatment or for the disposal through clear overflow outlet (11) and the sludge (13) being taken out of an improved fluidized media reactor (FMR) through the sludge outlet (14).