CN201926917U - Real-time automatic backwashing control system of denitrification filter tank - Google Patents
Real-time automatic backwashing control system of denitrification filter tank Download PDFInfo
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- CN201926917U CN201926917U CN2011200179437U CN201120017943U CN201926917U CN 201926917 U CN201926917 U CN 201926917U CN 2011200179437 U CN2011200179437 U CN 2011200179437U CN 201120017943 U CN201120017943 U CN 201120017943U CN 201926917 U CN201926917 U CN 201926917U
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Abstract
The utility model relates to a real-time automatic backwashing control system of a denitrification filter tank. The real-time automatic backwashing control system is provided with an on-line water turbidity sensor, a nitrate sensor, a turbidity determinator, a nitrate determinator, a process controller and an industrial control computer, wherein, the on-line water turbidity sensor and the nitrate sensor are arranged in the denitrification filter tank; the process controller is provided with a plurality of relays, such as a water inlet pump relay, a water inlet valve relay, and the like; the relays are respectively in control connection with corresponding pumps and valves in sequence via interfaces; and a clear water tank is further provided with a water outlet pipe communicated with the upper part of a material filter layer of the denitrification filter tank and a mud storage tank communicated with the upper part of the denitrification filter tank. The real-time automatic backwashing control system is suitable for advanced treatment of town sewage and the treatment of industrial wastewater containing nitrogen, has the advantages of perfect structure, high efficiency and good effect, and is simple and convenient to operate.
Description
Technical field
The utility model relates to a kind of recycling sewage generated by making biologic treating technique, specifically be control system and the operation method that the anoxic denitrification filter tank that can carry out the advanced nitrogen wastewater treatment is carried out real-time automatic backwash, be applicable to town sewage advanced treating and nitrogenous Industrial Wastewater Treatment.
Background technology
In recent years, increasing sharply of China's economic total amount day by day reduced gross amount of water resources.Serious day by day water environment pollution further aggravates the tense situation of water resource, and water resources problems has become the bottleneck of China's economic and social sustainable development.Reusing sewage is being contained great potential to solving the city water resource shortage, and sewage can be re-used in multiple uses such as lake, river view, industry cooling, green area irrigation through suitable Regeneration Treatment, realizes the benign cycle of water at occurring in nature.Municipal effluent can get nearby, is easy to collect and handle, and the water yield is abundant.More stable more, reliable as second water source, city than seawater, rainwater, more more economical than long distance water diversion.Open up this non-traditional water source, realize sewage recycling,, ensure that urban water supply has the important strategic meaning for the situation of alleviating water scarcity.In recent years, national some areas surface water water pollution situation constantly worsens, and surface water, groundwater resource lack day by day, and resurgent water has been used as the important water source in lack of water city.Yet because COD/N is lower in the sewage, and former technology do not have reasons such as denitrification function, and the most of sewage treatment plant of China needs upgrading, to improve sewage disposal plant effluent water quality, further realizes reuse of wastewater.
The denitrification filter pool sewage treatment process organically combines biological denitrification and physical filtering technology, both can realize biological denitrificaion, can further reduce suspension in the water again.This technology is sewage treatment plant's upgrading, realizes the selection process of reuse of wastewater.In sewage treatment process, the filter material surface apposition growth in the denitrification filter pool one deck biological membrane, and filter tank biological membrane in filter process is constantly grown and thickened, and need the microorganism of excess growth in the filter tank be discharged system by back flush.The used particle diameter of filter medium of denitrification filter pool is less, and the denitrifying microorganism growth rate is very fast, and this makes and easily results in blockage in the denitrification filter pool operational process.The filter tank will be in case obstruction will cause the local hydraulic load to increase, and effluent quality reduces, and when serious the filter tank is normally moved, and back-flushing method that we can say denitrification filter pool is the key of the normal stable operation of assurance denitrification filter pool sewage treatment process.
At present, China is many based on the mechanism Journal of Sex Research to the research of the back-flushing method in the biological worry of denitrification pond, this method also is not applied to sewage treatment plant's upgrading and produces the application example of high-quality resurgent water, and the technology that also this purging method is not optimized occurs naturally.The technical problem underlying that needs at present to solve has: the 1. easy obstruction that exists of traditional biological filter tank technology, be difficult to accurately judge when the filter tank needs the problem of back flush; 2. how to control the intensity of filter back washing process flexibly accurately, avoid the excessive recoil back, filter tank of causing of back washing strength long release time, intensity is crossed to hang down and is made the biological membrane of undue growth be difficult to thoroughly get rid of from filter tank system, and blocking problem appears in the part, filter tank; 3. how flexibly and accurately to control the time of filter back washing process, avoid causing the used back flush water yield in filter tank excessive, increase the problem of energy consumption; 4. after being difficult to guarantee filter back washing, denitrification function and filtering function be can in the shortest time, recover, the stable TN and the effluent quality up to standard of suspension guaranteed to obtain.These are obtained good resurgent water water quality all for the biological worry of denitrification pond sewage treatment process and have brought practical difficulty, thereby have hindered the further raising of this technology operational effect and applying of technology.Therefore, control system and and the corresponding perfect operation method of science that needs a kind of better more perfect biological filter of proposition to wash.
The utility model content
The purpose of this utility model is in order to solve the problems of the technologies described above, to propose a kind of real-time automatic backwash control system of denitrification filter pool technology.This system and operation method are by changing the back-flushing operation mode of traditional biological filter, and control by real-time process, accurately judge whether denitrification filter pool needs back flush, control used time of backwash process and intensity flexibly, can guarantee the backwash effect of denitrification filter pool saving under the operating cost condition.
The purpose of this utility model is achieved through the following technical solutions:
The real-time automatic backwash control system of denitrification filter pool, it is characterized in that: be provided with the online water turbidity sensor and the online nitrate sensor that in denitrification filter pool, are provided with in the clear water zone above the filter material layer, the sensor carries out signal with turbidimetry and nitrate analyzer respectively and is connected, and be connected with the process controller signal through signal input interface, process controller and industrial computer carry out signal and control linkage; The control signal of industrial computer sends process controller to through interface and lead, process controller is provided with that intake pump relay, water intaking valve relay, carbon source add the pump relay, carbon source adds valve relay, water drain valve relay, recoil air pump relay, recoil air intake valve relay, recoil intake pump relay, backwashing intake valve door relay, and these relays add pump, carbon source with intake pump, water intaking valve, carbon source respectively in regular turn through interface and add valve, water drain valve, recoil air pump, recoil air intake valve, recoil intake pump, backwashing intake valve gate control and be connected; Described intake pump and water intaking valve are located on intake pool and the water inlet pipe that denitrification filter pool is connected, and described water drain valve is located on intake pool and the recoil ajutage that denitrification filter pool filter material layer bottom is connected; Described recoil intake pump and backwashing intake valve are located on clear water reserviors and the backflushing water intake pipe that denitrification filter pool filter material layer bottom is communicated with, and described recoil air pump, recoil air intake valve are communicated with bottom denitrification filter pool by the recoil tracheae; Described carbon source adds pump and carbon source and adds valve and be located on carbon source explosive box and the drug tube that denitrification filter pool is connected; Described clear water reserviors also are provided with the rising pipe that is communicated with denitrification filter pool filter material layer top; Also be provided with the storage basin that is communicated with denitrification filter pool top in addition.
The real-time automatic backwash control system of denitrification filter pool of the present utility model compared with prior art has following advantage:
(1) good filtration effect goes out aqueous suspension less than 5mg/L, and turbidity is less than 5NTU, and stable effluent quality is safe and reliable.Delivery turbidity of the present utility model reached China to reclaimed water reuse in landscape water, municipal administration use mixedly, process water and underground requirement of recharging etc., this be other biological treatment can not compare, also be the outstanding advantage of this technology.
(2) the real-time control strategy of Cai Yonging can be controlled the filter process time in filter tank in real time according to the variation of the raw water quality water yield, fundamentally having solved the caused filter tank of filter overlong time stops up, effluent quality is poor, the raising of the operating cost that the insufficient grade of utilization of carbon source is brought and the waste of the energy.
(3) the real-time control strategy of Cai Yonging can be according to the biomembranous removing situation of backwash process, flexibly and accurately determine the backwash process time, fundamentally solved because of the excessive filter tank treatment effect that causes of the long intensity of backwashing time long release time, it is not up to standard to handle water outlet, and the too short intensity of backwashing time is too small and the filter tank that causes is local stops up, and handles out problems such as aqueous suspension height.
What (4) agent set adopted is denitrification filter pool technology, the effect that has filtration when making organism and nitrogen-containing compound in a reaction tank, obtain removing, reduce processing structures such as settling basin, thereby reduced the floor area of capital expenditure and whole technology.
(5) whole technology is finished by Process Control System, advantage such as have that bookkeeping is convenient, expense is low and anti impulsion load is strong.The utility model can be widely used in the advanced treating that municipal effluent and regeneration or nitrogen content change industrial waste water greatly, is specially adapted to build A/O, A
2Sewage treatment plants such as/O produce the upgrading of high-quality resurgent water.
Description of drawings
Fig. 1 is the structural representation of the utility model denitrification filter pool back flush control system.
Embodiment
Below in conjunction with drawings and Examples the utility model is described further: embodiment 1: the real-time automatic backwash control system of denitrification filter pool, it is characterized in that: be provided with the online water turbidity sensor 24 and the online nitrate sensor 26 that in denitrification filter pool 1, are provided with in the clear water zone above the filter material layer 10, the sensor carries out signal with turbidimetry 25 with nitrate analyzer 27 respectively and is connected, and be connected with process controller 28 signals through signal input interface 29, process controller and industrial computer 30 carry out signal and control linkage; The control signal of industrial computer sends process controller 28 to through interface and lead, process controller is provided with the intake pump relay, the water intaking valve relay, carbon source adds the pump relay, carbon source adds valve relay, the water drain valve relay, recoil air pump relay, recoil air intake valve relay, recoil intake pump relay, backwashing intake valve door relay, these relays through interface in regular turn respectively with intake pump 12, water intaking valve 13, carbon source adds pump 15, carbon source adds valve 16, water drain valve 18, recoil air pump 19, recoil air intake valve 20, recoil intake pump 21, backwashing intake valve door 22 control linkages; Described intake pump 12 and water intaking valve 13 are located on the water inlet pipe 3 that intake pool 11 is connected with denitrification filter pool, and described water drain valve 18 is located on intake pool and the recoil ajutage 6 that denitrification filter pool filter material layer bottom is connected; Described recoil intake pump and backwashing intake valve are located on clear water reserviors 17 and the backflushing water intake pipe 2 that denitrification filter pool filter material layer bottom is communicated with, and described recoil air pump 19, recoil air intake valve 20 are communicated with bottom denitrification filter pool by recoil tracheae 7; Described carbon source adds pump and carbon source and adds valve and be located on the drug tube 4 that carbon source explosive box 14 is connected with denitrification filter pool; Described clear water reserviors also are provided with the rising pipe 5 that is communicated with denitrification filter pool filter material layer top; Also be provided with the storage basin 23 that is communicated with denitrification filter pool top in addition.
Claims (1)
1. real-time automatic backwash control system of denitrification filter pool, it is characterized in that: be provided with the online water turbidity sensor (24) and the online nitrate sensor (26) that in denitrification filter pool (1), are provided with in the clear water zone of filter material layer (10) top, the sensor carries out signal with turbidimetry (25) with nitrate analyzer (27) respectively and is connected, and be connected with process controller (28) signal through signal input interface (29), process controller and industrial computer (30) carry out signal and control linkage; The control signal of industrial computer sends process controller (28) to through interface and lead, process controller is provided with the intake pump relay, the water intaking valve relay, carbon source adds the pump relay, carbon source adds valve relay, the water drain valve relay, recoil air pump relay, recoil air intake valve relay, recoil intake pump relay, backwashing intake valve door relay, these relays through interface in regular turn respectively with intake pump (12), water intaking valve (13), carbon source adds pump (15), carbon source adds valve (16), water drain valve (18), recoil air pump (19), recoil air intake valve (20), recoil intake pump (21), backwashing intake valve door (22) control linkage; Described intake pump (12) and water intaking valve (13) are located on the water inlet pipe (3) that intake pool (11) is connected with denitrification filter pool, and described water drain valve (18) is located on intake pool and the recoil ajutage (6) that denitrification filter pool filter material layer bottom is connected; Described recoil intake pump and backwashing intake valve are located on clear water reserviors (17) and the backflushing water intake pipe (2) that denitrification filter pool filter material layer bottom is communicated with, and described recoil air pump (19), recoil air intake valve (20) are communicated with bottom denitrification filter pool by recoil tracheae (7); Described carbon source adds pump and carbon source and adds valve and be located on the drug tube (4) that carbon source explosive box (14) is connected with denitrification filter pool; Described clear water reserviors also are provided with the rising pipe (5) that is communicated with denitrification filter pool filter material layer top; Also be provided with the storage basin (23) that is communicated with denitrification filter pool top in addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200179437U CN201926917U (en) | 2011-01-20 | 2011-01-20 | Real-time automatic backwashing control system of denitrification filter tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200179437U CN201926917U (en) | 2011-01-20 | 2011-01-20 | Real-time automatic backwashing control system of denitrification filter tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201926917U true CN201926917U (en) | 2011-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200179437U Expired - Lifetime CN201926917U (en) | 2011-01-20 | 2011-01-20 | Real-time automatic backwashing control system of denitrification filter tank |
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| CN (1) | CN201926917U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102063115A (en) * | 2011-01-20 | 2011-05-18 | 北京城市排水集团有限责任公司 | Real-time automatically back-flushing control system of denitrification filter pool and running method |
| CN106745719A (en) * | 2016-12-14 | 2017-05-31 | 江苏川源环保设备有限公司 | A kind of method and device for repairing denitrification deep-bed filter microbial film |
-
2011
- 2011-01-20 CN CN2011200179437U patent/CN201926917U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102063115A (en) * | 2011-01-20 | 2011-05-18 | 北京城市排水集团有限责任公司 | Real-time automatically back-flushing control system of denitrification filter pool and running method |
| CN102063115B (en) * | 2011-01-20 | 2012-07-04 | 北京城市排水集团有限责任公司 | Real-time automatically back-flushing control system of denitrification filter pool and running method |
| CN106745719A (en) * | 2016-12-14 | 2017-05-31 | 江苏川源环保设备有限公司 | A kind of method and device for repairing denitrification deep-bed filter microbial film |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110810 Effective date of abandoning: 20120704 |