CN203402963U - High-concentration ammonia-nitrogen wastewater treatment device - Google Patents
High-concentration ammonia-nitrogen wastewater treatment device Download PDFInfo
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- CN203402963U CN203402963U CN201320477778.2U CN201320477778U CN203402963U CN 203402963 U CN203402963 U CN 203402963U CN 201320477778 U CN201320477778 U CN 201320477778U CN 203402963 U CN203402963 U CN 203402963U
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- nitrogen wastewater
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Abstract
The utility model discloses a high-concentration ammonia-nitrogen wastewater treatment device. The high-concentration ammonia-nitrogen wastewater treatment device comprises an aeration tank provided with a water inlet pipe, a water outlet pipe and a mud discharging pipe, wherein a water decanter, an aerating device and a mud discharging pump are arranged in the aeration tank. The high-concentration ammonia-nitrogen wastewater treatment device is characterized in that a water power circulation pipe network is arranged in the aeration tank, the water power circulation pipe network is composed of a set of water pipes, a plurality of water spray holes are formed in each water pipe, the water power circulation pipe network is arranged at the bottom of the aeration tank, and is connected with a circulating water pump through a circulating water pipe, and the aerating device is arranged between the water decanter and the water power circulation pipe network, and is arranged on one side close to the water power circulation pipe network. Compared with the prior art, the high-concentration ammonia-nitrogen wastewater treatment device has the advantages that biodegradability of wastewater is achieved, the CODcr removal rate is high, the structure of the device is compact, operation is easy and convenient, and operating cost is low.
Description
Technical field
The utility model relates to technical field of sewage, specifically a kind of high ammonia-nitrogen wastewater treatment unit.
Background technology
At present, the processing of high ammonia-nitrogen wastewater generally all adopts MBR, A-O and SBR technique.MBR technique is a kind of new and effective sewage treatment process that high performance membrane isolation technique is combined with traditional activated sludge process, it carries out membrane filtration formula solid-liquid separation with membrane module to aeration tank mixed solution, MBR membrane module can be placed in aeration tank, also can be placed on outside, pond.Water after aerobic aeration and biological treatment, extracts qualified discharge by pump out after by membrane filtration.Use membrane module separation to save the second pond in traditional biochemical process, effluent quality can save tertiary treatment process well simultaneously.Adopt membrane separation technique, realized the complete separated of HRT and SRT, make sludge concentration can reach 6000-12000 mg/L, eliminated the harm that sludge bulking brings, greatly improved the clearance of hardly degraded organic substance simultaneously.But the engineering cost of MBR technique is high, investment is large, and device day-to-day operation and maintenance cost higher, energy consumption is large.
A/O water technology adopts the anoxic section of leading portion and the aerobic section of back segment to be cascaded, anoxic section heterotrophic bacterium, the suspended contaminant such as the starch in sewage, fiber, carbohydrate and dissolved organic matter are hydrolyzed to organic acid, make larger molecular organics be decomposed into small organic molecule, insoluble organism changes into dissolved organic matter, when these products through anaerobic hydrolysis enter Aerobic Pond and carry out aerobic treatment, can improve the biodegradability of sewage and the efficiency of oxygen; In anoxic section, heterotrophic bacterium carries out ammonification (N in organic chain or the amino in the amino acid) ammonia that dissociates (NH3, NH4+) by pollutents such as protein, fat, under sufficient oxygen supply condition, the nitrification of autotrophic bacteria is by NH3-N(NH4+) be oxidized to NO3-, by backflow, control and be back to A pond, under anoxia condition, the denitrification of heterotrophic bacteria is reduced to molecular nitrogen (N2) by NO3-and completes C, N, the O circulation in ecology, realizes sewage harmless treatment.A/O technique has higher removal effect to the organism such as ammonia nitrogen in waste water, and technical process is simple, and processing efficiency is high, reduced investment, and process cost is low.But the degradation rate for hard degradation material is lower, if will improve nitric efficiency, must strengthens nitrate recirculation ratio, thereby strengthen working cost.
SBR water technology adopts waste water to mix with the active sludge of cultivating in advance in bio-reactor, carries out anoxic or aerobic reaction, makes microorganism cells propagation in organic matter degradation.Meanwhile, bio-reactor is aeration tank, anoxic pond, is also settling tank, in the precipitation phase, stops aeration active sludge is separated with water precipitation, and waste water processed.SBR technique decontamination effect improving is better, and degradation efficiency is high, and technical process is simple, equipment manufacturing cost is low, convenient operation and maintenance management, and shortcoming is: resting period operation, automatic control to be had relatively high expectations, denitrogenation dephosphorizing efficiency is low, and processing efficiency is low.
Utility model content
The purpose of this utility model is a kind of high ammonia-nitrogen wastewater treatment unit designing for the deficiencies in the prior art, adopt Hydraulic Circulation pipe network and aerating apparatus, realize hocket continuously anaerobic hydrolysis and aerobic biological treatment, the nitrification and denitrification that ammonia nitrogen is carried out is rapidly, continuously processed, the biodegradability and the CODcr clearance that improve waste water, technique is simple, compact equipment, easy and simple to handle, working cost is low.
The purpose of this utility model is achieved in that a kind of high ammonia-nitrogen wastewater treatment unit, comprise the aeration tank that is provided with water inlet pipe, rising pipe and shore pipe, in aeration tank, be provided with and strain hydrophone, aerating apparatus and sludge pump, aerating apparatus is by airduct connecting fan, sludge pump is connected with shore pipe, strain the top that hydrophone is arranged on aeration tank and be connected with rising pipe by water outlet, be characterized in being provided with in described aeration tank Hydraulic Circulation pipe network; Described Hydraulic Circulation pipe network is one group of water pipe that is provided with several spout holes, and Hydraulic Circulation network collocation is connected with water circulating pump by circulating pipe at the bottom of the pond of aeration tank; Described aerating apparatus is arranged on to be strained between hydrophone and Hydraulic Circulation pipe network and nearly Hydraulic Circulation pipe network one side.
Described sludge pump, strain hydrophone, blower fan and water circulating pump by PLC programming Control.
Described aeration tank or by two many ponds that more parallel forms water treatment systems.
In described aeration tank, be provided with the online water quality monitoring system of controlling with PLC programming interlock.
The utility model compared with prior art has the following advantages: (1), processing efficiency improve, anoxic, aerobic in quick alternating state in pond, to high ammonia-nitrogen wastewater good purification, especially Nitrogen/Phosphorus Removal is better, denitrification process has been saved the power consumption of aeration aerating, and working cost is low.(2) each operation, in technological process can be adjusted according to water quality, the water yield, flexible operation, and operating performance is stable, and sewage precipitates under desirable stationary state, needs that the time is short, efficiency is high, and effluent quality is good.
(3), anti impulsion load, in pond, have the processing water of delay, sewage is had to dilution, shock absorption, effectively resist the impact of the water yield and organic pollution load.(4), simple in equipment, cost is low, characteristics of compact layout, floor space are few, technical process is simple, convenient operation and maintenance management.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation
Fig. 2 is for implementing illustration.
Embodiment
The same with the cultivation of routine biochemistry system when the utility model puts into operation, the press filtration mud that adds common municipal wastewater treatment plant enters in system, and bacterial classification dosage is generally 3 ~ 5%, progressively improves organic loading and ammonia nitrogen loading is cultivated and tamed after water inlet.The embodiment of the water treatment system composing in parallel with two ponds below, the utility model is described in further detail.
Consult accompanying drawing 2, open the first water intaking valve 15, the high ammonia-nitrogen wastewater that wish is processed is intake to the first aeration tank 1 by water inlet pipe 11, when reaching setting liquid level, the first aeration tank 1 stops into water, when the first water intaking valve 15 is closed, the first water circulating pump 73 and the second water intaking valve 25 are opened, and the second aeration tank 2 starts into high ammonia-nitrogen wastewater.Now, the hydraulic system being comprised of the first Hydraulic Circulation pipe network 7, the first circulating pipe 72 and the first water circulating pump 73 carries out strong cyclic stirring interior beginning the in the first aeration tank 1 to high ammonia-nitrogen wastewater, form rapidly anaerobic phase, carry out the operation of hypoxia response, this first Hydraulic Circulation pipe network 7 can meet full pond without the requirement of dead angle strong stirring mass transfer.After anaerobic hydrolysis completes, the first water circulating pump 73 is out of service, when the first water circulating pump 73 cuts out, the first blower fan 42 is opened, the first airduct 41 is inputted the first aerating apparatus 4 by pressurized air and is carried out oxygenic aeration, and the hypoxia response that high ammonia-nitrogen wastewater has just been finished then carries out the operation of aerobic reaction.PLC programming Control is set the number of transitions of A/O technique according to the ammonia-nitrogen content of waste water, high ammonia-nitrogen wastewater is carried out to anoxic and aerobic reaction repeatedly, to obtain good nitrification and denitrification treatment effect.After completing the A/O technique number of transitions of setting, whether the wastewater treatment that is automatically detected the first aeration tank 1 by the first on-line monitoring instrument 8 is up to standard, as the water quality detecting does not reach emission standard, PLC programming Control is according to the number of transitions of the detection data setting A/O technique of the first on-line monitoring instrument 8, to have met the requirement of ammonia nitrogen and COD degraded, until after the first aeration tank 1 water quality reaching standard, the first blower fan 42 is out of service, the first aeration tank 1 starts to staticly settle, active sludge is separated with water precipitation while arriving predetermined height, opening the first water outlet 3 of straining hydrophone 2 discharges the supernatant liquor after precipitation outside pond by rising pipe 12.After operation after a while, excessive active sludge was discharged outside pond by shore pipe 13 by first row dredge pump 5 in the precipitation phase, the processing of high ammonia-nitrogen wastewater is finished in the first aeration tank 1, and whole treating processes has been worked in coordination with by PLC programming Control and 8 interlocks of on-line monitoring instrument.
When reaching setting liquid level, the second aeration tank 21 stops into water, when the second water intaking valve 25 is closed, the second water circulating pump 273 is opened, if the now water treatment of the first aeration tank 1 has finished and receivability waste water, open the first water intaking valve 15 simultaneously, to the first aeration tank 1, again enter high ammonia-nitrogen wastewater.Now, the hydraulic system being comprised of the second Hydraulic Circulation pipe network 27, the second circulating pipe 272 and the second water circulating pump 273 carries out strong cyclic stirring interior beginning the in the second aeration tank 21 to high ammonia-nitrogen wastewater, form rapidly anaerobic phase, carry out the operation of hypoxia response, this second Hydraulic Circulation pipe network 27 can meet full pond equally without the requirement of dead angle strong stirring mass transfer.After anaerobic hydrolysis completes, the second water circulating pump 273 is out of service, when the second water circulating pump 273 cuts out, the second blower fan 242 is opened, the second airduct 241 is inputted the second aerating apparatus 24 by pressurized air and is carried out oxygenic aeration, and the hypoxia response that high ammonia-nitrogen wastewater has just been finished then carries out the operation of aerobic reaction.PLC programming Control is set the number of transitions of A/O technique according to the dissolved oxygen content of waste water, high ammonia-nitrogen wastewater is carried out to anoxic and aerobic reaction repeatedly, to obtain good nitrification and denitrification treatment effect.After completing the A/O technique number of transitions of setting, whether the wastewater treatment that is automatically detected the second aeration tank 21 by the second on-line monitoring instrument 28 is up to standard, as the water quality detecting does not reach emission standard, PLC programming Control is according to the number of transitions of the detection data setting A/O technique of the second on-line monitoring instrument 28, to have met the requirement of ammonia nitrogen and COD degraded, until after the second aeration tank 21 water quality reaching standards, the second blower fan 42 is out of service, the second aeration tank 21 starts to staticly settle, active sludge is separated with water precipitation while arriving predetermined height, opening the second water outlet 23 of straining hydrophone 22 discharges the supernatant liquor after precipitation outside pond by rising pipe 12, .After operation after a while, excessive active sludge was discharged outside pond by shore pipe 13 by second row dredge pump 25 in the precipitation phase, completed the processing of high ammonia-nitrogen wastewater.Whole treating processes has been worked in coordination with by PLC programming Control and 28 interlocks of on-line monitoring instrument.
The utility model is used single seat pond can complete the requirement of wastewater treatment when wastewater flow rate is not enough.When wastewater flow rate is more, can carry out alternate run by more than two or two pond parallel connections, with in meeting, trade effluent, especially intermittently discharged and the larger wastewater treatment project of fluctuations in discharge of small town sewage and industrial enterprise.PLC programming Control can be carried out the adjustment of each stage running time according to the specific nature of sewage, effluent quality, effluent characteristics, control mode flexibly, conveniently, the place of the higher effluent quality of applicable needs, as landscape excursion district, lake and bay etc., not only can make organic matter degradation, also can dephosphorization denitrogenation, prevent lake, river eutrophication, in the place of water scarcity and land used anxiety, be especially applicable to process the trade effluent of the little and intermittently discharged of wastewater flow rate and disperse the improvement of point-source pollution.
More than just the utility model is described further, not in order to limit this patent, all is that the utility model equivalence is implemented, within all should being contained in the claim scope of this patent.
Claims (4)
1. a high ammonia-nitrogen wastewater treatment unit, comprise the aeration tank (1) that is provided with water inlet pipe (11), rising pipe (12) and shore pipe (13), in aeration tank (1), be provided with and strain hydrophone (2), aerating apparatus (4) and sludge pump (5), aerating apparatus (4) is by airduct (41) connecting fan (42), sludge pump (5) is connected with shore pipe (13), strain the top that hydrophone (2) is arranged on aeration tank (1) and be connected with rising pipe (12) by water outlet (3), it is characterized in that being provided with in described aeration tank (1) Hydraulic Circulation pipe network (7); Described Hydraulic Circulation pipe network (7) is one group of water pipe that is provided with several spout holes (71), and Hydraulic Circulation pipe network (7) is connected with water circulating pump (73) by circulating pipe (72) at the bottom of being arranged on the pond of aeration tank (1); Described aerating apparatus (4) is arranged on to be strained between hydrophone (2) and Hydraulic Circulation pipe network (7) and nearly Hydraulic Circulation pipe network (7) one sides.
2. high ammonia-nitrogen wastewater treatment unit according to claim 1, is characterized in that described sludge pump (5), strains hydrophone (2), blower fan (42) and water circulating pump (73) be by PLC programming Control.
3. high ammonia-nitrogen wastewater treatment unit according to claim 1, is characterized in that described aeration tank (1) or by two many ponds that more parallel forms water treatment systems.
4. according to high ammonia-nitrogen wastewater treatment unit described in claim 1 or claim 2, it is characterized in that being provided with in described aeration tank (1) the online water quality monitoring system (8) of controlling with PLC programming interlock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320477778.2U CN203402963U (en) | 2013-08-07 | 2013-08-07 | High-concentration ammonia-nitrogen wastewater treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320477778.2U CN203402963U (en) | 2013-08-07 | 2013-08-07 | High-concentration ammonia-nitrogen wastewater treatment device |
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| CN203402963U true CN203402963U (en) | 2014-01-22 |
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| CN201320477778.2U Expired - Lifetime CN203402963U (en) | 2013-08-07 | 2013-08-07 | High-concentration ammonia-nitrogen wastewater treatment device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395882A (en) * | 2013-08-07 | 2013-11-20 | 上海在田环境科技有限公司 | Processing method and processing apparatus of high ammonia-nitrogen wastewater |
| CN105502657A (en) * | 2016-01-05 | 2016-04-20 | 北京化工大学 | Device and method for treating high-concentration ammonia-nitrogen wastewater in aeration-anaerobic circulation mode |
-
2013
- 2013-08-07 CN CN201320477778.2U patent/CN203402963U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395882A (en) * | 2013-08-07 | 2013-11-20 | 上海在田环境科技有限公司 | Processing method and processing apparatus of high ammonia-nitrogen wastewater |
| CN105502657A (en) * | 2016-01-05 | 2016-04-20 | 北京化工大学 | Device and method for treating high-concentration ammonia-nitrogen wastewater in aeration-anaerobic circulation mode |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140122 |
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| CX01 | Expiry of patent term |