CN103588293B - Control method of anaerobic ammoxidation reaction - Google Patents

Control method of anaerobic ammoxidation reaction Download PDF

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Publication number
CN103588293B
CN103588293B CN201310510800.3A CN201310510800A CN103588293B CN 103588293 B CN103588293 B CN 103588293B CN 201310510800 A CN201310510800 A CN 201310510800A CN 103588293 B CN103588293 B CN 103588293B
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reactor
temperature
carbon source
inorganic carbon
concentration
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CN103588293A (en
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于鹏飞
傅金祥
何亚婷
姜曦
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Shenyang Jianzhu University
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Shenyang Jianzhu University
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Abstract

The invention discloses a control method of an anaerobic ammoxidation reaction, and relates to the technical field of the biological treatment of sewage. The anaerobic ammoxidation treatment effect is realized by controlling the material temperature, the inorganic carbon source concentration and the pH value of a reactor with an upflow anaerobic sludge bed as reaction carrier, wherein the temperature of the reaction material in the reactor is controlled in a range of 30-40DEG C; the adopted inorganic carbon source is NaHCO3, and the concentration of NaHCO3 in the reaction material is controlled in a range of 0.75-0.1g/L; and the pH value of the reaction material in the reactor is in a range of 7-7.5. A system disclosed in the invention is composed of a temperature control system, an automatic inorganic carbon source concentration control system and an automatic pH value control system; the system can display the temperature, pH value the like of an anaerobic ammoxidation reactor in real time, and is in favor of the effective control of the running management; and the system can automatically control the temperature, the inorganic carbon concentration and the pH value in the anaerobic ammoxidation reactor according to the running condition to realize the stable running of the anaerobic ammoxidation reaction.

Description

A kind of control method of Anammox reaction
Technical field
The present invention relates to technical field of biological sewage treatment, be specifically related to the control method of a kind of Anammox reaction.
Background technology
In recent years along with the fast development of science and technology, improving constantly of living standards of the people, environmental pollution is day by day serious, obtain attention in various degree gradually, the particularly aggravation of nitrate pollution, not only living standards of the people are exerted a certain influence, more also have certain restriction to expanding economy.Trade effluent and sanitary sewage etc. are mostly containing a large amount of organonitrogens and inorganic nitrogen, particularly some trade effluents, as coal pressure gasification wastewater, nitrogenous fertilizer waste water, coking chemical waste water, piggery wastewater etc. can be found everywhere without process thoroughly or the phenomenon through processing directly discharge, serious harm is caused to environment.According to China's environmental quality publication report recent years, water surrounding receives unprecedented pollution, total nitrogen exceeds standard the major reason becoming and cause deteriorating water quality, and ammonia-state nitrogen has become one of principal pollutant matter of the large water system of China's municipal lake, each Big Lakes and China seven etc.
Because the organic content of current China municipal sewage plant's influent quality is generally lower, carbon source is not enough, cannot ensure good denitrification denitrogenation efficiency.Nineteen ninety, a kind of novel denitrification process and anaerobic ammonia oxidation process are developed in Dutch Delft technology university Kluyver Biotechnology Experiment room; Anammox reaction is the reaction of whole process autotrophic type, therefore compared with traditional denitrification process, Anammox has outstanding advantages and has: 1, zmount of oxygen consumption is few, because ammonia only need be converted into nitrite by Anammox reaction, and without the need to being converted into nitrate, the 35%(that Anammox reaction oxygen-consumption is only conventional denitrification reaction does not consider that cell synthesis consumes oxygen amount), therefore can greatly reduce the supply of oxygen; 2, because the anaerobic ammonia oxidizing bacteria doubling time is longer, Anammox reaction sludge output is less, thus has greatly saved specific resistance to filtration expense; 3, can secondary pollution be reduced, because Anammox reaction directly utilizes ammonia as electron donor, and without the need to additional organism, reagent cost can be saved, also can avoid the secondary pollution caused due to additional organism simultaneously.But Anammox does not also have practical engineering application at present at home, the bottleneck of application is that anaerobic ammonium oxidation process is very complicated, and influence factor is extremely extensive, and operational management skill requires high; Improving Anammox control method is in actual applications current urgent problem.
Summary of the invention
For the problems referred to above that existing Anammox exists in actual applications, the invention provides the control method of a kind of Anammox reaction, by the temperature to Anammox, inorganic carbon source concentration and pH value Comprehensive Control, Anammox stable reaction is run, improves the ammonia transformation efficiency in sewage disposal.
The control method of a kind of Anammox reaction of the present invention is:
With upflow anaerobic sludge blanket process (UASB) for reaction carriers, by controlling the temperature of material in reactor, inorganic carbon source concentration and pH value, reach Anammox treatment effect; The temperature wherein controlling reaction mass in reactor is 30 ~ 40 DEG C; The inorganic carbon source adopted is NaHCO 3, NaHCO in reaction mass 3concentration span of control be 0.75 ~ 0.1g/L; In reactor, the scope of the pH value of reaction mass is between 7 ~ 7.5.
In aforesaid method, the hydronic device of water-bath comprises recirculated water bath, thermometer, programming temperature controller, well heater and water circulating pump, the temperature of circulation heating agent is detected by thermometer, input to programming temperature controller, compare with the temperature preset, temperature controller regulates heating medium for heating temperature by heater, heating agent enters recirculated water bath by recycle pump, recirculated water bath is enclosed within outside reactor, by thermometer to heat medium temperature Real-Time Monitoring, realizes temperature automatically controlled.
In aforesaid method, the device that inorganic carbon source concentration controls comprises NaHCO 3solution hold tank, NaHCO 3solution measures pump and inorganic carbon source on-line computing model, by the inorganic carbon source NaHCO of material in inorganic carbon source on-line computing model monitoring reactor 3concentration, with the NaHCO arranged 3concentration compares, output signal control NaHCO 3the opening and closing of solution measures pump, changes the inorganic carbon source concentration entered in reactor.
In aforesaid method, the device that pH value controls comprises pH meter, online pH instrument, NaOH solution hold tank and NaOH solution volume pump, by the pH in pH meter monitoring reactor, result reaches pH auto-controller, compare with the pH value pre-set, output signal controls the opening and closing of NaOH solution volume pump, regulates the NaOH concentration entering material in reactor.
The feature of native system is that system is made up of temperature controlling system, inorganic carbon source concentration automatic control Controlling System and pH value automatic control system three parts; The information such as the temperature in anaerobic ammonia oxidation reactor, pH value can show by system in real time, are conducive to effective control of operational management; System can control the temperature in anaerobic ammonia oxidation reactor, inorganic carbon source concentration and pH value automatically according to operation condition, realize the steady running of Anammox reaction.
Accompanying drawing explanation
Fig. 1 is activated sludge process Anammox reactive system structural representation of the present invention;
Fig. 2 is water-bath circulating system structure schematic diagram of the present invention;
Fig. 3 is inorganic carbon source concentration of the present invention, pH value Control system architecture schematic diagram;
In figure, 1, former tank, 2, circulating water channel, 3, triphase separator, 4, water circulating pump, 5, former water volume pump, 6, sludge circulation pump, 7, water bath, 8, main reaction region, 9, reactor mud mouth, 10, water-in, 11, water outlet, 12, water seal arrangement, 13, programming temperature controller, 14, thermometer, 15, well heater, 16, NaHCO 3solution hold tank, 17, NaHCO 3solution measures pump, 18, inorganic carbon source on-line computing model, 19, pH meter, 20, online pH instrument, 21, NaOH solution hold tank, 22, NaOH solution volume pump;
Fig. 4 is the time m-clearance graphic representation after the method in the embodiment of the present invention is implemented, and wherein ■ is ammonia-state nitrogen, ● be nitrite nitrogen.
Embodiment
The NaHCO adopted in the embodiment of the present invention 3the concentration of solution is 10g/L.
The concentration of the NaOH solution adopted in the embodiment of the present invention is 1mol/L.
The programming temperature controller adopted in the embodiment of the present invention is FCD-13A-R/M programmable thermostat.
The inorganic carbon source on-line computing model adopted in the embodiment of the present invention is TOC conductivity sensor.
The online pH instrument adopted in the embodiment of the present invention is the online numerical analysis controller of HANNA Hana.
Embodiment of the present invention Central Plains water ammonia nitrogen concentration is 150mg/L, and former water volume pump flow is 0.8L/h, recycle ratio 300%.
Embodiment 1
Anammox reactive system as shown in Figure 1,2 and 3, comprises reactor, sludge circulation pump, circulating water channel, water circulating pump, former water volume pump and former tank;
Adopt Wastewater Treated by Activated Sludge Process mud, passed into by water in the mud of reactor, carry out Anammox reaction in the reactor, after the reaction of discharging in reactor, sludge circulation enters reactor, and the cleaning water after process and gas are discharged through triphase separator; Control the temperature of material in reactor, inorganic carbon source concentration controls and pH value; The temperature wherein controlling reaction mass in reactor is 30 ~ 40 DEG C; The inorganic carbon source adopted is NaHCO 3, NaHCO in reaction mass 3concentration span of control be 0.75 ~ 0.1g/L; In reactor, the scope of the pH value of reaction mass is between 7 ~ 7.5;
The hydronic device of water-bath comprises recirculated water bath, thermometer, programming temperature controller, well heater and water circulating pump, the temperature of circulation heating agent is detected by thermometer, input to programming temperature controller, compare with the temperature preset, temperature controller regulates heating medium for heating temperature by heater, and heating agent enters recirculated water bath by recycle pump, and recirculated water bath is enclosed within outside reactor, by thermometer to heat medium temperature Real-Time Monitoring, realize temperature automatically controlled;
The device that inorganic carbon source concentration controls comprises NaHCO 3solution hold tank, NaHCO 3solution measures pump and inorganic carbon source on-line computing model, by the inorganic carbon source NaHCO of material in inorganic carbon source on-line computing model monitoring reactor 3concentration, with the NaHCO arranged 3concentration compares, output signal control NaHCO 3the opening and closing of solution measures pump, changes the inorganic carbon source concentration entered in reactor;
The device that pH value controls comprises pH meter, online pH instrument, NaOH solution hold tank and NaOH solution volume pump, by the pH in pH meter monitoring reactor, result reaches pH auto-controller, compare with the pH value pre-set, output signal controls the opening and closing of NaOH solution volume pump, regulates the NaOH concentration entering material in reactor;
After said apparatus and method process, time m-clearance graphic representation as shown in Figure 4.

Claims (1)

1. a control method for Anammox reaction, is characterized in that: take upflow anaerobic sludge blanket process as reaction carriers, by controlling the temperature of material in reactor, inorganic carbon source concentration and pH value, reaches Anammox treatment effect; The temperature wherein controlling reaction mass in reactor is 30 ~ 40 DEG C; The inorganic carbon source adopted is NaHCO 3, NaHCO in reaction mass 3concentration span of control be 0.75 ~ 0.1g/L; In reactor, the scope of the pH value of reaction mass is between 7 ~ 7.5; The hydronic device of water-bath comprises recirculated water bath, thermometer, programming temperature controller, well heater and water circulating pump, the temperature of circulation heating agent is detected by thermometer, input to programming temperature controller, compare with the temperature preset, temperature controller regulates heating medium for heating temperature by heater, and heating agent enters recirculated water bath by recycle pump, and recirculated water bath is enclosed within outside reactor, by thermometer to heat medium temperature Real-Time Monitoring, realize temperature automatically controlled; The device that inorganic carbon source concentration controls comprises NaHCO 3solution hold tank, NaHCO 3solution measures pump and inorganic carbon source on-line computing model, by the inorganic carbon source NaHCO of material in inorganic carbon source on-line computing model monitoring reactor 3concentration, with the NaHCO arranged 3concentration compares, output signal control NaHCO 3the opening and closing of solution measures pump, changes the inorganic carbon source concentration entered in reactor; The device that pH value controls comprises pH meter, online pH instrument, NaOH solution hold tank and NaOH solution volume pump, by the pH in pH meter monitoring reactor, result reaches pH auto-controller, compare with the pH value pre-set, output signal controls the opening and closing of NaOH solution volume pump, regulates the NaOH concentration entering material in reactor.
CN201310510800.3A 2013-10-27 2013-10-27 Control method of anaerobic ammoxidation reaction Expired - Fee Related CN103588293B (en)

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CN105174448B (en) * 2015-10-13 2017-05-31 沈阳建筑大学 A kind of Anammox and denitrification coupling device and its control operation method
CN106277462B (en) * 2016-09-09 2019-08-02 沈阳建筑大学 A kind of milk product waste crystallizing-dephosphorizing control method

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