CN108414716A - A kind of detection device and method of sewage organic matter fraction - Google Patents
A kind of detection device and method of sewage organic matter fraction Download PDFInfo
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- CN108414716A CN108414716A CN201810371866.1A CN201810371866A CN108414716A CN 108414716 A CN108414716 A CN 108414716A CN 201810371866 A CN201810371866 A CN 201810371866A CN 108414716 A CN108414716 A CN 108414716A
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- 239000010865 sewage Substances 0.000 title claims abstract description 68
- 238000001514 detection method Methods 0.000 title claims abstract description 57
- 239000005416 organic matter Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 36
- 239000010802 sludge Substances 0.000 claims abstract description 64
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 62
- 239000001301 oxygen Substances 0.000 claims abstract description 62
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000005273 aeration Methods 0.000 claims abstract description 44
- 239000000523 sample Substances 0.000 claims abstract description 16
- 238000005485 electric heating Methods 0.000 claims abstract description 11
- 239000000470 constituent Substances 0.000 claims abstract description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 38
- 230000008859 change Effects 0.000 claims description 22
- 238000006243 chemical reaction Methods 0.000 claims description 21
- 241000894006 Bacteria Species 0.000 claims description 19
- KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 claims description 18
- 238000004821 distillation Methods 0.000 claims description 16
- 230000036284 oxygen consumption Effects 0.000 claims description 14
- 239000000243 solution Substances 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 12
- 239000004576 sand Substances 0.000 claims description 12
- 230000001651 autotrophic effect Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 239000003112 inhibitor Substances 0.000 claims description 6
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000004448 titration Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 4
- 239000000084 colloidal system Substances 0.000 claims description 4
- 238000011068 loading method Methods 0.000 claims description 4
- 239000013049 sediment Substances 0.000 claims description 4
- 238000002479 acid--base titration Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 238000005189 flocculation Methods 0.000 claims description 3
- 230000016615 flocculation Effects 0.000 claims description 3
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 3
- 229960001763 zinc sulfate Drugs 0.000 claims description 3
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 3
- 239000012086 standard solution Substances 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- 238000000855 fermentation Methods 0.000 claims 1
- 230000004151 fermentation Effects 0.000 claims 1
- 239000007789 gas Substances 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 15
- 238000005259 measurement Methods 0.000 abstract description 12
- 238000005842 biochemical reaction Methods 0.000 abstract description 3
- 238000006065 biodegradation reaction Methods 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 abstract description 3
- 230000000704 physical effect Effects 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 2
- HTKFORQRBXIQHD-UHFFFAOYSA-N allylthiourea Chemical compound NC(=S)NCC=C HTKFORQRBXIQHD-UHFFFAOYSA-N 0.000 description 10
- 229960001748 allylthiourea Drugs 0.000 description 10
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 4
- 239000012153 distilled water Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 150000002894 organic compounds Chemical class 0.000 description 4
- -1 ASM2D Proteins 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000013178 mathematical model Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 101100436077 Caenorhabditis elegans asm-1 gene Proteins 0.000 description 1
- 101100436078 Caenorhabditis elegans asm-2 gene Proteins 0.000 description 1
- 101100436085 Caenorhabditis elegans asm-3 gene Proteins 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 101100204282 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) Asm-1 gene Proteins 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical group [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 235000011007 phosphoric acid Nutrition 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/1826—Organic contamination in water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1205—Particular type of activated sludge processes
- C02F3/1215—Combinations of activated sludge treatment with precipitation, flocculation, coagulation and separation of phosphates
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biodiversity & Conservation Biology (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Water Supply & Treatment (AREA)
- Analytical Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Microbiology (AREA)
- Medicinal Chemistry (AREA)
- Pathology (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Food Science & Technology (AREA)
- Activated Sludge Processes (AREA)
Abstract
The invention discloses a kind of detection devices and method of sewage organic matter fraction.The detection device of this sewage organic matter fraction includes closed container, sealing-plug, tool return port anti-splash ball, electric blender, aeration head, dissolved oxygen probe, temperature sensor, electrical bar, temperature and dissolved oxygen meter, data signal input, computer, data output end, controller, outlet valve relay, electric heating bar relay, electric blender relay, aeration relay, air pump and air outlet valve.Also disclose a kind of method detecting sewage organic matter fraction using the detection device.The detection method of the present invention is based on activated sludge process model, on the one hand from biochemical reaction angle according to the biodegradation process of organic matter, on the other hand sewage composition is divided from physical property angle according to the form of expression of existing forms, and propose measurement scheme according to different mechanism, improve organic constituents detection efficiency and accuracy.
Description
Technical field
The present invention relates to a kind of detection devices and method of sewage organic matter fraction.
Background technology
Nearly more than ten years, activated sludge process have obtained great development, can not only remove organic carbon, moreover it is possible to denitrogenation dephosphorizing, but it is long
Experience has been mostly used since phase greatly or semiempirical method is designed to activated Sludge System and operational management, biological treatment is managed
The research of opinion is not goed deep into.Due to the complexity of sewage quality component and activated sludge process process, in order to studied phenomenon
Rule has deeper understanding, using activated sludge model design, manages and the sewage treatment plant that affixes one's seal is China's water process
The development trend of technology certainty.
As mathematical model and computer technology are increased in activated sludge process application, international water assists (IWA)
By the summary to researcher's achievement before, be continuously proposed activated sludge 1-3 models (ASM1, ASM2, ASM2D,
ASM3), blanket platform is provided for the exploitation of New Technology about Wastewater Treatment in the world, operational management, technological design, scientific research.
These ASM series models are applied in actual sewage treatment plant, are the operational management of sewage plant, the optimization of prior art, liter
Grade transformation etc. provides highly useful theoretical foundation.
However, in practical applications, there is certain difficulty in effective use of ASM models, main reason is that water inlet water
The analysis of matter measures and the practical correction of model parameter.Due to contained in ASM models the dissolubilities such as COD, nitrogen, phosphorus in water and
Non-solubility, inertia and non-inert substance, some are difficult to directly measure, some analysis determining methods not yet specification.And another party
Face, for model into water component because the factors such as different regions economy, living habit, pipe net arrangement are different, numerical value has larger difference,
Achievement in research both domestic and external cannot directly be quoted, it is necessary to survey to them.
Currently, most sewage treatment plants in China, mostly only supervise conventional index, such as COD, SS, nitrogen phosphorus
The collection with data is surveyed, but the measurement of the further subdivision and model parameter for these components is then fewer and fewer.Therefore mould
The measurement of type component parameter is that activated sludge model is badly in need of a great problem overcome in the application.With activated sludge process
Further investigation, mathematical model can become increasingly complex, and the accuracy and measurability to each parameter can all have higher requirement, and
The mensuration means of model parameter lag behind the development of model in model at present.Therefore, by reliable detection method and device come
Obtaining model parameter is particularly important.
Invention content
The purpose of the present invention is to provide a kind of detection device and method of sewage organic matter fraction, this method is based on activity
Sludge model, on the one hand from biochemical reaction angle according to the biodegradation process of organic matter, on the other hand from physical property angle
Degree divides sewage according to the form of expression of existing forms, and proposes measurement scheme according to different mechanism, improves organic
Object component detection efficiency and accuracy.
The technical solution used in the present invention is：
A kind of detection device of sewage organic matter fraction, including reaction system, detecting system, control system and data acquisition
System；
Reaction system includes closed container, and the top of closed container is equipped with sealing-plug, tool reflux is equipped with successively in sealing-plug
Hole anti-splash ball, electric blender, dissolved oxygen probe, temperature sensor and electrical bar, tool return port anti-splash ball by air outlet valve with
Sealing-plug is connected, and the bottom of closed container is equipped with aeration head；
Detecting system includes temperature and dissolved oxygen meter, temperature and dissolved oxygen meter respectively with dissolved oxygen probe and temperature
Degree sensor is connected；
Control system includes controller, and controller is equipped with outlet valve relay, electric heating bar relay, electric blender relay
Device and aeration relay, outlet valve relay are connected with air outlet valve, and electric heating bar relay is connected with electrical bar, electric stirring
Machine relay is connected with electric blender, and aeration relay is connected by air pump with aeration head；
Data collecting system includes computer, and computer is equipped with data signal input and data output end, data-signal
Input terminal is connected with temperature with dissolved oxygen meter, and data output end is connected with controller.
Temperature sets dissolved oxygen concentration as 2mg/L~6mg/L with dissolved oxygen meter, and temperature is 19.5 DEG C~20.5 DEG C.
A kind of detection method of sewage organic matter fraction, includes the following steps：
1) organic constituents are divided：According to activated sludge ASM2D models, the organic matter in sewage is divided into deliquescent
Tunning SA, fermentable easily biological-degradable organic matter SF, solubilised state not biodegradable organic SI, graininess it is slow
Labile organic compound XS, particulate form not biodegradable organic XI, heterotroph XH；Wherein, SAAnd SFBelong to easily biological-degradable
Organic matter SS；
2) batch activated sludge method is used to measure SI：It takes activated sludge to be inoculated in sewage, is aerated, water flocculation will be gone out and sunk
It forms sediment, solubilised state COD in water outlet is measured after filteringfValue is SI；
3) S is measured using distillation condensation methodA：Heating distillation sewage, collects tunning distillate, measures in distillate
SAConcentration；
4) S is measuredS、XSAnd XH：Activated sludge and sewage are added in above-mentioned detection device and are sealed, is aerated, reaction,
The oxygen consumption rate change curve for measuring sludge, S is calculated by being integrated to area under the curveS、XSAnd XHConcentration；
5) S is calculatedFAnd XI：According to MaterialBalance Computation SFAnd XI, wherein：SF=SS- SA；XI=CODT- SS- XS
SI- XH。
The step 2) of detection method is specially：It takes activated sludge to be inoculated in sewage, makes the ratio of sludge loading and sludge quantity
Value F/M is 0.05~0.2, and water is taken out after continuous aeration, adds zinc sulfate under conditions of pH is 10~11, then remove formation
Colloid measures solubilised state COD in water outlet after filteringfValue is SI。
In the step 3) of detection method, heating distillation sewage is specially that 0.5%~2% percent by volume is added in sewage
Sodium hydroxide solution carry out heating distillation, the mass concentration of sodium hydroxide solution is 5%~20%.
In the step 3) of detection method, S is measuredAMethod be acid-base titration, specially：It is molten using sodium hydroxide standard
Liquid titrates tunning distillate, and using phenolphthalein as indicator, the terminal of titration is pH=8.3 and phenolphthalein is in pink simultaneously
Color.
In the step 4) of detection method, aeration need to ensure the dissolved oxygen concentration in device>Then 6mg/L stops aeration, adds
Enter nitrification inhibitor and inhibits autotrophic bacterium activity.
In the step 4) of detection method, the mixed liquor of activated sludge and sewage is completely filled with closed container, in sealing state
Under reacted, the pH of reaction is 7.5~8.5.
In the step 4) of detection method, SS、XSAnd XHConcentration calculation formula difference it is as follows：
In above-mentioned formula：
VW- sewage volume, L；
V-sludge volume, L；
YH- heterotrophic bacteria yield coefficient；
t1The time of first inflection point, h in-oxygen consumption rate change curve；
t2The time of second inflection point, h in-oxygen consumption rate change curve；
r1From 0 to t in-oxygen consumption rate change curve1The oxygen consumption rate of section, mg/ (Lmin)；
r2From t in-oxygen consumption rate change curve1To t2The oxygen consumption rate of section, mg/ (Lmin)；
r3T in-oxygen consumption rate change curve2Oxygen consumption rate later, mg/ (Lmin)；
r(t0)—t0The wear rate of moment heterotrophic bacteria, mg/ (Lh)；
μH- heterotrophic bacteria maximum Specific incremental rate, d-1；
YH- heterotrophic bacteria yield coefficient；
SS、XSAnd XHConcentration unit be mg/L.
In the step 2) or step 4) of detection method, activated sludge is the sludge in endogenous respiration state, the age of sludge
Phase is 1 day~3 days.
The beneficial effects of the invention are as follows：
1) the present invention relates to method be based on activated sludge process model, on the one hand from biochemical reaction angle according to organic
On the other hand the biodegradation process of object is drawn sewage composition from physical property angle according to the form of expression of existing forms
Point, and propose measurement scheme according to different mechanism, improve organic constituents detection efficiency and accuracy.
2) the present invention relates to device increase the anti-splash ball of tool return port, reduce in repeatedly strong aeration process in short-term
The loss of middle mixed liquor controls the air outlet valve of tool return port anti-splash ball lower end using relay, ensures reactor in reaction process
Leakproofness.
Description of the drawings
Fig. 1 is the schematic diagram of sewage organic matter fraction detection device；
Fig. 2 is the oxygen consumption rate change curve of sludge.
Specific implementation mode
Attached drawing 1 is the schematic diagram of sewage organic matter fraction detection device.In Fig. 1,1, closed container；2, sealing-plug；3, have
Return port anti-splash ball；4, electric blender；5, aeration head；6, dissolved oxygen probe；7, temperature sensor；8, electrical bar；9, temperature
With dissolved oxygen meter；10, data signal input；11, computer；12, data output end；13, controller；14, air outlet valve
Relay；15, electric heating bar relay；16, electric blender relay；17, it is aerated relay；18, air pump；19, air outlet valve.
Below in conjunction with Fig. 1 illustrate the present invention sewage organic matter fraction detection device, this device include reaction system,
Detecting system, control system and data collecting system；Reaction system includes closed container (1), and the top of closed container (1) is equipped with
Sealing-plug (2) is equipped with tool return port anti-splash ball (3), electric blender (4), dissolved oxygen probe (6), temperature in sealing-plug (2) successively
Sensor (7) and electrical bar (8) are spent, tool return port anti-splash ball (3) is connected by air outlet valve (19) with sealing-plug (2), closed
The bottom of container (1) is equipped with aeration head (5)；
Detecting system includes temperature and dissolved oxygen meter (9), and temperature is visited with dissolved oxygen respectively with dissolved oxygen meter (9)
Head (6) is connected with temperature sensor (7)；
Control system includes controller (13), and controller is equipped with outlet valve relay (14), electric heating bar relay (15), electricity
Dynamic blender relay (16) and aeration relay (17), outlet valve relay (14) are connected with air outlet valve (19), electrical bar
Relay (15) is connected with electrical bar (8), and electric blender relay (16) is connected with electric blender (4), aeration after
Electric appliance (17) is connected by air pump (18) with aeration head (5)；
Data collecting system includes computer (11), and computer (11) is equipped with data signal input (10) and data export
It holds (12), data signal input (10) is connected with temperature with dissolved oxygen meter (9), data output end (12) and controller
Phase (13) connects.
By temperature and dissolved oxygen meter, dissolved oxygen probe and temperature sensor in closed container DO and temperature into
Row monitoring in real time, is input in computer by data signal input, according to the DO and temperature condition set, to judge to be
It is no reactor to be heated and is aerated.Result after calculating is output to by data signal output in controller, is passed through
Electric heating bar relay and aeration relay feed back to electrical bar and aeration head in closed container, come ensure reaction system DO and
Temperature.By outlet valve relay in the controller, make the air outlet valve that tool return port anti-splash ball lower end is automatically opened when aeration,
So that it is communicated with reaction unit, can prevent mixed liquor when aeration from splashing out, while ensureing that mixed liquor is not lost in；After aeration, close
The air outlet valve of tool return port anti-splash ball lower end is closed, while electric blender is opened by electric blender relay, makes reactor
In always be in be thoroughly mixed state.
Preferably, the volume of closed container is 3L~10L.
Preferably, temperature and dissolved oxygen meter sets dissolved oxygen concentration as 2mg/L~6mg/L, temperature for 19.5 DEG C~
20.5℃。
Preferably, the volume of tool return port anti-splash ball is 200mL~300mL.
Preferably, controller is programmable controller.
Preferably, electrical bar is single head heating tube.
A kind of detection method of sewage organic matter fraction, includes the following steps：
1) organic constituents are divided：According to the activated sludge ASM2D models (activated sludge model of international water association exploitation
Activated Sludge Model 2D), the organic matter in sewage is divided into deliquescent tunning SA, it is fermentable
Easily biological-degradable organic matter SF, solubilised state not biodegradable organic SI, graininess slow labile organic compound XS, particle
State not biodegradable organic XI, heterotroph XH；Wherein, SAAnd SFBelong to easily biological-degradable organic matter SS；
2) batch activated sludge method is used to measure SI：It takes activated sludge to be inoculated in sewage, is aerated, water flocculation will be gone out and sunk
It forms sediment, solubilised state COD in water outlet is measured after filteringfValue is SI；
3) S is measured using distillation condensation methodA：Heating distillation sewage, collects tunning distillate, measures in distillate
SAConcentration；
4) S is measuredS、XSAnd XH：Activated sludge and sewage are added in above-mentioned detection device and are sealed, is aerated, reaction,
The oxygen consumption rate change curve for measuring sludge, S is calculated by being integrated to area under the curveS、XSAnd XHConcentration；
5) S is calculatedFAnd XI：According to MaterialBalance Computation SFAnd XI, wherein：SF=SS- SA；XI=CODT- SS- XS
SI- XH。
Further, the step 1) of detection method is the difference according to physicochemical characteristic, and organic constituents are divided into dissolving
State S and particulate form X is divided into tunning and fermentable and easy biology then according to degradation process and its complexity
Degradation and not biodegradable organic matter.
Further, the step 2) of detection method is specially：Take activated sludge to be inoculated in sewage, make sludge loading F with
The ratio F/M of sludge quantity M is 0.05~0.2, and continuous aeration takes out water behind several days, and sulphur is added under conditions of pH is 10~11
Sour zinc forms Zn (OH)2Flco, then the colloid of formation is removed, solubilised state COD in water outlet is measured after filteringfValue is SI。
Further, in the step 3) of detection method, heating distillation sewage is specially that 0.5%~2% is added in sewage
The sodium hydroxide solution of percent by volume carries out heating distillation, and the mass concentration of sodium hydroxide solution is 5%~20%；It is preferred that
, the sodium hydroxide solution that 1% percent by volume is specially added in heating distillation sewage in sewage carries out heating distillation, hydrogen-oxygen
The mass concentration for changing sodium solution is 10%.Due to SAMeasurement can be by ammonia nitrogen, the H contained in sewage2S and CO2Deng it is dry
It disturbs, so needing that NaOH distillations are added, removes ammonia nitrogen, H in water sample2S and CO2Deng.
Further, in the step 3) of detection method, S is measuredAMethod be acid-base titration, specially：Use hydrogen-oxygen
Change sodium standard solution to titrate tunning distillate, using phenolphthalein as indicator, the terminal of titration is pH=8.3 and simultaneously
Phenolphthalein pinkiness.
Further, in the step 4) of detection method, aeration need to ensure the dissolved oxygen concentration in device>Then 6mg/L stops
It is only aerated, nitrification inhibitor is added and inhibits autotrophic bacterium activity.
Preferably, the nitrification inhibitor being added is allylthiourea (ATU), and allylthiourea, which is added, to be made in closed container
ATU a concentration of 18mg/L~22mg/L, further preferably 20mg/L.It can inhibit the activity of autotrophic bacterium, row by the way that ATU is added
Except OUR caused by autotrophic bacterium is interfered.
Further, in the step 4) of detection method, the mixed liquor of activated sludge and sewage is completely filled with closed container,
It is reacted under sealing state, the pH of reaction is 7.5~8.5；Muddy water mixed solution must assure that device after being added to detection device
It is completely filled in, no air bubble exists, and is used in combination sealing-plug that device is closed.
Attached drawing 2 is a kind of oxygen consumption rate change curve of sludge.It, will be total according to the variation tendency of oxygen consumption rate in Fig. 2
Oxygen demand (curve integral area) is divided into three parts, indicates the S in sewage respectivelyS、XSWith microorganism endogenous respiration in raw sewage
Oxygen demand.Corresponding different oxygen consumption rate r1、r2、r3, each component concentration is calculated by being integrated to area under the curve.It ties below
Close Fig. 2, in the step 4) for illustrating detection method, SS、XSAnd XHConcentration calculation formula difference it is as follows：
In formula (1) or (2)：
VW- sewage volume, L；
V-sludge volume, L；
YH- heterotrophic bacteria yield coefficient；
t1The time of first inflection point, h in-oxygen consumption rate change curve；
t2The time of second inflection point, h in-oxygen consumption rate change curve；
r1From 0 to t in-oxygen consumption rate change curve1The oxygen consumption rate of section, mg/ (Lmin)；
r2From t in-oxygen consumption rate change curve1To t2The oxygen consumption rate of section, mg/ (Lmin)；
r3T in-oxygen consumption rate change curve2Oxygen consumption rate later, mg/ (Lmin).
XHIt is to be measured to the oxygen update rate of water inlet by above-mentioned detection device, ATU is added and inhibits nitrification, root
It is calculated according to formula (3)：
In formula (3)：
r(t0)—t0The wear rate of moment heterotrophic bacteria, mg/ (Lh)；
μH- heterotrophic bacteria maximum Specific incremental rate, d-1；
YH- heterotrophic bacteria yield coefficient.
SS、XSAnd XHConcentration unit be mg/L.
Further, in the step 4) of detection method, activated sludge need to first measure sludge VSS concentration and sewage to be measured
COD value makes the ratio F/M of sludge loading F and sludge quantity M between 0.05-0.2.
Further, in the step 2) or step 4) of detection method, activated sludge is the sludge in endogenous respiration state,
The age of sludge is 1 day~3 days, preferably 2 days.
In step 5), CODTI.e. total COD.
Present disclosure is described in further detail below by way of specific embodiment.Material used in embodiment
Material unless otherwise specified, can be obtained from routine business approach.
The detection device embodiment of sewage organic matter fraction：
As shown in Figure 1, the detection device of the sewage organic matter fraction of the present invention comprising reaction system, detecting system, control
System processed and data acquisition processing system：Reaction system includes closed container (1), and volume 5L is equipped with sealing-plug (2), sealing-plug
(2) tool return port anti-splash ball (3), electric blender (4), dissolved oxygen probe (6), temperature sensor (7), electricity are sequentially installed in
Hot pin (8), container bottom be laid with aeration head (5), wherein tool return port anti-splash ball (3) be equipped with air outlet valve (19), aeration head (5) with
Air pump (18) connects；Detecting system mainly by temperature and DO analyzers (9) in reactor temperature and DO be detected.Control
System processed include controller (13), outlet valve relay (14), electric heating bar relay (15), electric blender relay (16),
It is aerated relay (17), wherein outlet valve relay (14) is connect with air outlet valve (19), electric heating bar relay (15) and electrical bar
(8) it connecting, electric blender relay (16) is connect with electric blender (4), and aeration relay (17) is connect with air pump (18),
Detection data is fed back.Data acquisition processing system includes data signal input (10), computer (11), data output
It holds (12), the data of detecting system acquisition be processed and output in controller (13).
Facility information used in this detection device is as follows：
Has return port anti-splash ball：Model A3384-B250ml-1EA, upper grinding port 24/40, lower ground 19/22, volume
250mL；
Electric blender：JB60-S electric mixers；
Temperature and dissolved oxygen meter：Hash sc200 dissolved oxygen meters；
Controller：FX1N-14MR-001 Mitsubishis programmable controller；
Electrical bar：Single head heating tube.
Detection device is broadly divided into two processes of aeration and reaction, and aeration is to ensure to have in the mixed device of muddy water
Sufficiently high starting DO concentration (>6mg/L), in the reaction process after aeration, it is ensured that be full of mixed liquor in device and locate
To meet the experiment demand of two processes in the design of sealing state, therefore device.
The working condition of detection device is as follows：Pass through temperature and dissolved oxygen meter (9), dissolved oxygen probe (6) and temperature
Sensor (7) in closed container (1) DO and temperature monitored in real time, meter is input to by data signal input (10)
In calculation machine (11), according to the DO and temperature condition set, to determine whether reactor is heated and is aerated.After calculating
Result be output in controller (13) by data signal output (12), pass through electric heating bar relay (15) and aeration relay
Device (16) feeds back to electrical bar (8) and aeration head (5) in closed container (1), to ensure the DO and temperature of reaction system.Pass through
Outlet valve relay (14) in controller (13) makes the air outlet valve that return port anti-splash ball (3) lower end is automatically opened when aeration
(19), so that it is communicated with reaction unit, can prevent mixed liquor when aeration from splashing out, while ensureing that mixed liquor is not lost in；It is aerated it
Afterwards, the air outlet valve (19) of tool return port anti-splash ball (3) lower end is closed, while electronic by electric blender relay (16) unlatching
Blender (4), makes in reactor to be in always and is thoroughly mixed state.
The detection method embodiment of sewage organic matter fraction：
Guangzhou municipal wastewater treatment plant is taken to intake, main water quality index is as follows：COD：150~450mg/L, NH4 +-N：10~
30mg/L、TN：15~50mg/L, TP：1~4mg/L, SS：130~320mg/L, pH value 6.9~7.1.In conjunction with Fig. 1 to detection side
Method carries out following explanation.
1) solubilised state not biodegradable organic SIMeasurement：Measure total COD (COD of intakingT).By 5L aerobic tank sludge
It is placed in container, staticly settles 30min, supernatant is discharged, distilled water is added to full bottle, it is heavy to be stood again after abundant aeration agitation
It forms sediment, arranges supernatant, so in triplicate, aeration total time is about 6~8h, and sludge is made to be in the sources Inner respiratory state, measures its dirt
Mud solubility MLSS.It takes into water with by above treated the sludge, makes mixed liquor F/M=0.2, fully aeration takes out water after 5 days,
Zinc sulfate is added under conditions of pH=10.5, forms Zn (OH)2Flco removes the colloid in water removal, and it is 0.45 μ then to use aperture
The membrane filtration water sample of m.The colloidal organic matter remaining COD, the COD of measurement that flucculation process can be effectively removed in waterfValue
It is considered SI。
2) tunning SAMeasurement：It first takes 100mL water samples in 250mL distilling flasks, zeolite is added, is dripped in flask
3 drop phenolphthalein solutions, 10% sodium hydroxide solutions of 1mL, which are then added, makes it in alkalinity, and it is remaining to be heated to distilling flask solution
60mL gives up this part of distillate.40mL distilled water is added in distilling flask again, while 10mL10% phosphoric acids are added
Change experiment water sample, be heated to solution residue 20mL, is added after 50mL distilled water heats again after cooling and obtains distillate, distillated
10 drop phenolphthalein reagents are instilled in liquid is used in combination pH=8.3 (alkalescent) to be used as another terminal with 0.01mol/L sodium hydroxide titrations
The tool of judgement, while when phenolphthalein pinkiness, titration is reached home.Record dosage VNaOHML, you can calculated according to formula (4)
SA。
In formula (4)：
VNaOHThe volume of-consumption NaOH, mL；
The concentration of C-titration consumption NaOH standard liquids, mol/L；
The volume of V-detected water sample, mL.
Ammonia nitrogen, the H contained in sewage2S and CO2Deng can all interfere SAMeasurement therefore during the test should be by this
A little disturbing factors exclude.NaOH distillations are added, ammonia nitrogen, the H in water sample can be removed2S and CO2Deng.
3) easily biological-degradable organic matter SSWith slow labile organic compound XSMeasurement：It is suitble to according to requirement of experiment determination
F/M ratios (F/M=0.05~0.2), so that it is determined that into water volume V in deviceWAnd sludge volume V.
By in the sludge adding apparatus of endogenous respiration state, sludge is fully aerated, the purpose of aeration is to make
Have in the mixed device of muddy water sufficiently high starting DO concentration (>6mg/L).Stop aeration, is added a concentration of 20g/L's of l mL
Nitrification inhibitor allylthiourea (ATU) solution makes a concentration of 20mg/L of ATU in OUR reactors, can inhibit the activity of autotrophic bacterium,
OUR caused by autotrophic bacterium is excluded to interfere.It is V by volumeWWaste water be added in device, if be added also free in bottle after waste water
Between, it separately plus in distilled water to reactor is completely filled with, no air bubble exists, with sealing-plug that reactor is closed, opens magnetic force
Blender and DO analyzers.When DO drops to 2mg/L in reactor, opens reactor aeration and DO is made to reach 6mg/L or more,
Stop aeration, keeps drain tap to open, the bubble generated in reactor due to inflating strongly is discharged, avoid after sealing
Cause the rapid decrease of DO.After the aobvious numerical value of dissolved oxygen meter institute declines and stablizes, drain tap is closed, dissolved oxygen in monitoring device is continued
Variation.Continuous above-mentioned steps reach constant until oxygen consumption rate value, and microorganism enters endogenous respiration level, off-test.By
Dissolved oxygen concentration versus time curve can be drawn out after calculating, it is seen that attached drawing 2.It can be calculated using formula (1) and (2)
The easily biological-degradable organic matter S measuredSWith slow labile organic compound XS。
4) heterotroph XHMeasurement：Wastewater Sample is added in the device makes device be full of, and nitrification inhibitor ATU is in device
20mg/L, sealing METHOD FOR CONTINUOUS DETERMINATION for a period of time in (about 30 minutes) reactor dissolved oxygen variation, can be obtained according to formula (3)
Heterotroph XHValue.
5) the remaining component parameter of MaterialBalance Computation, S are utilizedFAccording to formula SF=SS-SAIt calculates, XIAccording to formula XI=
COD-SS- XS- SI- XHIt calculates.
It is as shown in table 1 to organic constituents testing result according to above-mentioned specific implementation step.
1 organic constituents concentration of table
Claims (10)
1. a kind of detection device of sewage organic matter fraction, it is characterised in that：
Including reaction system, detecting system, control system and data collecting system；
Reaction system includes closed container, and the top of closed container is equipped with sealing-plug, and it is anti-to be equipped with tool return port successively in sealing-plug
Ball, electric blender, dissolved oxygen probe, temperature sensor and electrical bar are splashed, tool return port anti-splash ball passes through air outlet valve and sealing
Plug is connected, and the bottom of closed container is equipped with aeration head；
Detecting system includes temperature and dissolved oxygen meter, and temperature is passed with dissolved oxygen probe and temperature respectively with dissolved oxygen meter
Sensor is connected；
Control system includes controller, controller be equipped with outlet valve relay, electric heating bar relay, electric blender relay and
Be aerated relay, outlet valve relay is connected with air outlet valve, and electric heating bar relay is connected with electrical bar, electric blender after
Electric appliance is connected with electric blender, and aeration relay is connected by air pump with aeration head；
Data collecting system includes computer, and computer is equipped with data signal input and data output end, data-signal input
End is connected with temperature with dissolved oxygen meter, and data output end is connected with controller.
2. a kind of detection device of sewage organic matter fraction according to claim 1, it is characterised in that：Temperature and dissolved oxygen
Analyzer sets dissolved oxygen concentration as 2mg/L~6mg/L, and temperature is 19.5 DEG C~20.5 DEG C.
3. a kind of detection method of sewage organic matter fraction, it is characterised in that：Include the following steps：
1) organic constituents are divided：According to activated sludge ASM2D models, the organic matter in sewage is divided into deliquescent fermentation
Product SA, fermentable easily biological-degradable organic matter SF, solubilised state not biodegradable organic SI, the slow of graininess drop
Solve organic matter XS, particulate form not biodegradable organic XI, heterotroph XH；Wherein, SAAnd SFIt is organic to belong to easily biological-degradable
Object SS；
2) batch activated sludge method is used to measure SI：It takes activated sludge to be inoculated in sewage, is aerated, flocculation sediment will be discharged, filter
Solubilised state COD in water outlet is measured afterwardsfValue is SI；
3) S is measured using distillation condensation methodA：Heating distillation sewage, collects tunning distillate, measures the S in distillateA
Concentration；
4) S is measuredS、XSAnd XH：Activated sludge and sewage are added in detection device described in claim 1 and sealed, is aerated,
Reaction, measures the oxygen consumption rate change curve of sludge, S is calculated by being integrated to area under the curveS、XSAnd XHConcentration；
5) S is calculatedFAnd XI：According to MaterialBalance Computation SFAnd XI, wherein：SF=SS- SA；XI=CODT- SS- XS- SI- XH。
4. a kind of detection method of sewage organic matter fraction according to claim 3, it is characterised in that：Step 2) is specific
For：Activated sludge is taken to be inoculated in sewage, it is 0.05~0.2 to make the ratio F/M of sludge loading and sludge quantity, is taken after continuous aeration
Water outlet adds zinc sulfate under conditions of pH is 10~11, then removes the colloid of formation, and solubilised state in water outlet is measured after filtering
CODfValue is SI。
5. a kind of detection method of sewage organic matter fraction according to claim 3, it is characterised in that：In step 3), add
Thermal distillation sewage is specially that the sodium hydroxide solution of 0.5%~2% percent by volume of addition in sewage carries out heating distillation, hydrogen
The mass concentration of sodium hydroxide solution is 5%~20%.
6. a kind of detection method of sewage organic matter fraction according to claim 5, it is characterised in that：In step 3), survey
Determine SAMethod be acid-base titration, specially：Tunning distillate is titrated using standard solution of sodium hydroxide, with
Phenolphthalein is indicator, and the terminal of titration is pH=8.3 and phenolphthalein pinkiness simultaneously.
7. a kind of detection method of sewage organic matter fraction according to claim 3, it is characterised in that：In step 4), expose
Gas need to ensure the dissolved oxygen concentration in device>Then 6mg/L stops aeration, nitrification inhibitor is added and inhibits autotrophic bacterium activity.
8. a kind of detection method of sewage organic matter fraction according to claim 7, it is characterised in that：It is living in step 4)
Property sludge and the mixed liquor of sewage be completely filled with closed container, reacted in sealed states, the pH of reaction is 7.5~8.5.
9. a kind of detection method of sewage organic matter fraction according to claim 8, it is characterised in that：In step 4), SS、
XSAnd XHConcentration calculation formula difference it is as follows：
In above-mentioned formula：
VW- sewage volume, L；
V-sludge volume, L；
YH- heterotrophic bacteria yield coefficient；
t1The time of first inflection point, h in-oxygen consumption rate change curve；
t2The time of second inflection point, h in-oxygen consumption rate change curve；
r1From 0 to t in-oxygen consumption rate change curve1The oxygen consumption rate of section, mg/ (Lmin)；
r2From t in-oxygen consumption rate change curve1To t2The oxygen consumption rate of section, mg/ (Lmin)；
r3T in-oxygen consumption rate change curve2Oxygen consumption rate later, mg/ (Lmin)；
r(t0)—t0The wear rate of moment heterotrophic bacteria, mg/ (Lh)；
μH- heterotrophic bacteria maximum Specific incremental rate, d-1；
YH- heterotrophic bacteria yield coefficient；
SS、XSAnd XHConcentration unit be mg/L.
10. a kind of detection method of sewage organic matter fraction according to claim 4 or 9, it is characterised in that：Activated sludge
Age for the sludge in endogenous respiration state, sludge is 1 day~3 days.
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