CN202131186U - Biochemical oxidation deeply-denitrifying device - Google Patents
Biochemical oxidation deeply-denitrifying device Download PDFInfo
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- CN202131186U CN202131186U CN201120208151U CN201120208151U CN202131186U CN 202131186 U CN202131186 U CN 202131186U CN 201120208151 U CN201120208151 U CN 201120208151U CN 201120208151 U CN201120208151 U CN 201120208151U CN 202131186 U CN202131186 U CN 202131186U
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Abstract
The utility model discloses a biochemical oxidation deeply-denitrifying device, which comprises a double-layer casing. A sand extracting pipe is arranged in the casing, the top of the casing is connected with a sand washer, and the bottom of the casing is connected with a sand exhaust pipe. The top of the casing is provided with an overflow water outlet communicated with a cavity between an outer casing and an inner casing, and the upper portion of the inner casing is provided with a water inlet pipe and an air inlet pipe. An aeration sleeve is positioned outside the sand extracting pipe, a water supply sleeve is arranged outside the aeration sleeve, and sand beds are fully distributed outside the water supply sleeve. Two ends of the sand extracting pipe and the aeration sleeve are sealed, the inner wall of the bottom of the sand extracting pipe is provided with a hole, and the upper portion of the aeration sleeve is connected with the air inlet pipe. The top end of the water supply sleeve is connected with the water inlet pipe, the lower end of the water supply pipe is connected with an aeration pipe and a water distribution pipe, and the aeration pipe is positioned above the water distribution pipe. The outer casing is connected with a chemical feeding pipe, a water outlet and a slag discharging hole, and bottoms of the outer casing and the inner casing are connected and provided with bottom aeration pipes. The biochemical oxidation deeply-denitrifying device can further improve removal effect of ammonia nitrogen in waste water and is more flexible simultaneously, thereby achieving biochemical oxidation integration, stably, continuously and effectively removing nitric nitrogen and the ammonia nitrogen and adapting to new ammonia nitrogen emission standard.
Description
Technical field
The utility model relates to waste water advanced denitrification processing device, specifically is a kind of deep denitrogenation device that waste water after the biochemical treatment is carried out the biochemical oxidation processing.
Background technology
Ammonia nitrogen waste water is a kind of unmanageable trade effluent; Ammonia nitrogen often is one of essential substance that causes environmental pollution and eutrophication; Dissolved oxygen in its continuous consume water of existence ability makes the water body blackout smelly, even can cause aquatic organism death or water body forfeiture functions of use in the water body.The pollution incident that causes along with all kinds of ammonia nitrogens occurs in a large number, and the seriousness of ammonia and nitrogen pollution causes people's attention day by day, and country also is provided with more strict ammonia nitrogen discharge index to wastewater treatment.Therefore,, reduce the pollution of sewage, transform extremely urgent the advanced treatment of micro polluted source to environment in order to satisfy the sewage drainage standard that improves day by day.At present, conventional depth is handled and is divided into chemical dephosphorization, coagulation, deposition, sand filtration etc., and the continous way sand-bed filter is a kind of novel all-in-one water treating equipment of abroad in advance succeeding in developing in recent years.But conventional sand filtering device is to be nitrogen with nitrate-nitrogen reduction in the water; Undesirable to the ammonia nitrogen removal effect; Owing to technologic defective or fluctuation of service in treating processes, the ammonia nitrogen or the total nitrogen of final bio-chemical effluent exceed standard, and are difficult to reach the requirement of WWT simultaneously.
The utility model content
The utility model technical problem to be solved provides the wastewater biochemical oxidation depth NRU that a kind of biochemical oxidation moved, had ammonia nitrogen digestion efficiently and denitrogenation continuously.
The utility model solves the problems of the technologies described above with following technical scheme:
The utility model biochemical oxidation deep denitrogenation device comprises the housing that is made up of inner casing 6b and shell 6a, and the center of inner casing 6b is provided with sand extraction tube 16, and the top of sand extraction tube 16 connects sand-washing device 4; The bottom of inner casing 6b is connected to sediment outflow pipe 12, the top be provided with inside and outside shell between the overflow water outlet 20 that is connected of cavity, the periphery of sand extraction tube 16 has aeration sleeve pipe 17; The periphery of aeration sleeve pipe 17 has water supply sleeve pipe 18; Water supply sleeve pipe 18 outsides are covered with casting bed, seal between the two ends of sand extraction tube 16 and aeration sleeve pipe 17, and sand extraction tube 16 bottom inwalls have aperture; The top of aeration sleeve pipe 17 is connected to inlet pipe 2; The top of water supply sleeve pipe 18 connects water inlet pipe 1, following termination aeration tube 7 and water distributor 8, and aeration tube 7 is positioned at water distributor 8 tops; Shell 6a is connected to chemical feed pipe 15, water outlet 14 and slag-drip opening 13, shell 6a and inner casing 6b bottom is connected and be provided with bottom aeration tube 19.
Said inner casing 6b bottom be shaped as the hollow cone shape, and be connected to the sediment outflow pipe 12 of 90 ° of elbows.
Said chemical feed pipe 15, bottom aeration tube 19 and overflow outlet 20 are located at the same side of housing, and water outlet 14 is located at the housing opposite side with slag-drip opening 13.
The ingress of said inlet pipe 2 is provided with the Pneumatic rubber valve.
The top of said sand-washing device 4 is connected to the washed-out sand water water shoot 5 that stretches out shell 6a, is provided with gate valve 10 between sand-washing device 4 and the washed-out sand water water shoot 5.
The inner no running gear of the utility model device; Simple in structure, can stablize and effectively remove nitric nitrogen and ammonia nitrogen, realize the effect that nitric nitrogen and ammonia nitrogen are removed simultaneously; The device that belongs to the integral type advanced treatment; Difficult degradation is had removal effect preferably, and floor space is little, is applicable to the processing of bio-chemical effluent advanced nitrogen.
The utility model device is compared with the prior art sand-bed filter and is had the following advantages:
1. the utility model adopts inside and outside bivalve device, and the waste water after layer of sand is handled can carry out suitable and Youxiaolin is further handled according to the chemical feed pipe of effluent quality difference through the control cover top portion, and device has higher handiness.
2. the bottom between the inside and outside shell is provided with aeration tube, and gas forms eddy flow in the process that rises, and the perturbation action of eddy flow helps ammonia nitrogen and sodium hypochlorite reaction, improves the ammonia nitrogen removal effect.
3. be provided with a Pneumatic rubber valve at the inlet pipe place, gas gets into aeration sleeve pipe and sand extraction tube through the Pneumatic rubber valve, can prevent effectively that through the Pneumatic rubber valve sand suck-back from going in the sleeve pipe, and can effectively control the digestion and the anti-digestive process of sand filtration process.
4. above sand-washing device, be provided with gate valve, gate valve can stop sand to flow out the biochemical oxidation deep denitrogenation device.
Description of drawings
Fig. 1 is the structural representation of the utility model biochemical oxidation deep denitrogenation device.
Fig. 2 is the schematic side view of Fig. 1.
Fig. 3 is the schematic top plan view of Fig. 1.
Among the figure: water inlet pipe 1, inlet pipe 2, overflow weir 3, sand-washing device 4, washed-out sand water water shoot 5, shell 6a, inner casing 6b, aeration tube 7, water distributor 8, sand stop cover 9, gate valve 10, three-legged support 11, sediment outflow pipe 12, slag-drip opening 13, water outlet 14, chemical feed pipe 15, sand extraction tube 16, aeration sleeve pipe 17, water supply sleeve pipe 18, bottom aeration tube 19, overflow water outlet 20.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further to describe.
The utility model biochemical oxidation deep denitrogenation device comprises the double hull that is made up of shell 6a and inner casing 6b, and the top of inner casing 6b is provided with water inlet pipe 1 and inlet pipe 2, and the ingress of inlet pipe 2 is provided with the Pneumatic rubber valve.Inner casing 6b inboard is connected to the overflow weir 3 of carry potential overflow water outlet 20, and the bottom shape of inner housing 6b is the hollow cone shape, and is connected to the sediment outflow pipe 12 of 90 ° of elbows.The inside of inner casing 6b is filled with the silica sand of 2/3rds housing height; The particle diameter of silica sand is 10～20 orders; The center of inner casing 6b is provided with sand extraction tube 16, and there is aeration sleeve pipe 17 sand extraction tube 16 outsides, and sand stop cover 9 is arranged at the bottom of aeration sleeve pipe 17; The top of sand extraction tube 16 and aeration sleeve pipe 17 is connected with sand-washing device 4; The top of sand-washing device 4 is connected to the washed-out sand water water shoot 5 that stretches out shell 6a, and the mouth of pipe of washed-out sand water water shoot 5 is located at the upper outside of shell 6a, is provided with gate valve 10 between sand-washing device 4 and the washed-out sand water water shoot 5.The outside of aeration sleeve pipe 17 is provided with water supply sleeve pipe 18, and the top of water supply sleeve pipe 18 is 1/3 length of sand-washing device apart from the distance of sand-washing device 4 bottoms, and the water supply outside of sleeve is covered with casting bed; The top of water supply sleeve pipe 18 connects the outlet of water inlet pipe 1, and the mouth of pipe of water inlet pipe 1 is located at the top of inner casing 6b, the following termination aeration tube 7 and the water distributor 8 of water supply sleeve pipe 18; Aeration tube 7 is positioned at the top of water distributor 8, and water supply sleeve pipe 18 tops are connected with water inlet pipe 1, and the mouth of pipe of water inlet pipe 1 is located at the top of inner casing 6b; Shell 6a top one side is provided with chemical feed pipe 15; 1/3 housing height place is provided with water outlet 14 to opposite side apart from the top, and the bottom is provided with slag-drip opening 13, and the bottom of shell 6a also is connected to three-legged support 11; Shell 6a and inner casing 6b bottom is connected and be provided with bottom aeration tube 19.Chemical feed pipe 15, bottom aeration tube 19 and overflow outlet 20 are located at the same side of housing, and water outlet 14 is located at the housing opposite side with slag-drip opening 13.
The sealed at both ends of sand extraction tube 16 and aeration sleeve pipe 17 connects and composes double-deck interlayer pipe, is pressurized air between the tube and tube, through offering aperture in the sand extraction tube bottom, pressurized air is cleaned gentle the carrying to sand-washing device 4 of dirty sand, water through aperture.
When using the utility model, the bio-chemical effluent that contains nitric nitrogen and ammonia nitrogen gets in the inner casing 6b through water inlet pipe 1, and additional carbon required in the degradation process can add before water inlet, and waste water gets into quartz sand layer through water inlet pipe 2 backs by water distributor 8 uniformly distributings.The water body flow process that makes progress mixes with the gas that aeration tube 7 comes out, and the digestive process in the casting bed bottom is through aeration tube control digestion and anti-digestive process; Water inlet realizes digestion and anti-digestive process through casting bed, move down in casting bed integral body, and suspended substance in the waste water or floss is trapped; Realization is to the purpose of nitric nitrogen and ammonia nitrogen removal; Waste water after layer of sand is handled overflows through the overflow water outlet 20 of overflow weir 3, gets in the cavity between the inside and outside shell, through the chemical feed pipe 15 adding Youxiaolin at top; Aerating apparatus 19 makes gas form eddy flow in the process that rises through the bottom again; Favourable ammonia nitrogen of the perturbation action of eddy flow and sodium hypochlorite reaction are further removed wherein ammonia nitrogen and nitric nitrogen, and the water after the processing leaves this device by water outlet 14.Because gas proposes effect, the pressurized air that gets in the sand extraction tubes through aeration sleeve pipe 17 from inlet pipe 1 cleans gentle the carrying to sand-washing device 4 of dirty sand, water, and after clean, sand sinks to falling after rise to the inner casing bottom, and washed-out sand water is then flowed out by washed-out sand water water shoot 5.
The utility model is through being provided with oxidation zone cylindraceous between sand-bed filter district and the inside and outside shell at the inner casing middle part; The place is provided with the Pneumatic rubber valve at the air inlet mouth of pipe, and possibility effectively prevents can effectively control when the sand suck-back from going in the sleeve pipe digestion and the anti-digestive process of sand filtration process.
Claims (5)
1. the biochemical oxidation deep denitrogenation device comprises the housing that is made up of inner casing (6b) and shell (6a), and the center of inner casing (6b) is provided with sand extraction tube (16); The top of sand extraction tube (16) connects sand-washing device (4), and the bottom of inner casing (6b) is connected to sediment outflow pipe (12), the top be provided with inside and outside shell between the overflow water outlet (20) that is connected of cavity; It is characterized in that the periphery of said sand extraction tube (16) has aeration sleeve pipe (17), the periphery of aeration sleeve pipe (17) has water supply sleeve pipe (18); Water supply sleeve pipe (18) outside has been covered with casting bed, seal between the two ends of sand extraction tube (16) and aeration sleeve pipe (17), and sand extraction tube (16) bottom inwall has aperture; The top of aeration sleeve pipe (17) is connected to inlet pipe (2); The top of water supply sleeve pipe (18) connects water inlet pipe (1), and following termination aeration tube (7) and water distributor (8), aeration tube (7) are positioned at water distributor (8) top; Shell (6a) is connected to chemical feed pipe (15), water outlet (14) and slag-drip opening (13), shell (6a) and inner casing (6b) bottom is connected and be provided with bottom aeration tube (19).
2. biochemical oxidation deep denitrogenation device according to claim 1 is characterized in that: said inner shell bottom be shaped as the hollow cone shape, and be connected to the sediment outflow pipe of 90 ° of elbows.
3. biochemical oxidation deep denitrogenation device according to claim 1 is characterized in that: said chemical feed pipe (15), bottom aeration tube (19) and overflow water outlet (20) are located at the same side of housing, and water outlet (14) and slag-drip opening (13) are located at the opposite side of housing.
4. biochemical oxidation deep denitrogenation device according to claim 1 is characterized in that: the ingress of said inlet pipe (2) is provided with the Pneumatic rubber valve.
5. biochemical oxidation deep denitrogenation device according to claim 1 is characterized in that: the top of sand-washing device (4) is connected to the washed-out sand water water shoot (5) that stretches out shell (6a), is provided with gate valve (10) between sand-washing device (4) and the washed-out sand water water shoot (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120208151U CN202131186U (en) | 2011-06-20 | 2011-06-20 | Biochemical oxidation deeply-denitrifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120208151U CN202131186U (en) | 2011-06-20 | 2011-06-20 | Biochemical oxidation deeply-denitrifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202131186U true CN202131186U (en) | 2012-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120208151U Expired - Lifetime CN202131186U (en) | 2011-06-20 | 2011-06-20 | Biochemical oxidation deeply-denitrifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202131186U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921201A (en) * | 2012-10-26 | 2013-02-13 | 江苏通用环保集团有限公司 | Air sand extraction device for horizontal flow aeration grit chamber sand sucker |
| CN114262049A (en) * | 2021-12-31 | 2022-04-01 | 四川旅发环保科技有限公司 | Continuous biological aeration device for fecal sewage treatment |
-
2011
- 2011-06-20 CN CN201120208151U patent/CN202131186U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921201A (en) * | 2012-10-26 | 2013-02-13 | 江苏通用环保集团有限公司 | Air sand extraction device for horizontal flow aeration grit chamber sand sucker |
| CN114262049A (en) * | 2021-12-31 | 2022-04-01 | 四川旅发环保科技有限公司 | Continuous biological aeration device for fecal sewage treatment |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120201 |