CN106145341A - A kind of city refuse landfill anaerobic baffled reactor and control method thereof - Google Patents
A kind of city refuse landfill anaerobic baffled reactor and control method thereof Download PDFInfo
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- CN106145341A CN106145341A CN201610737146.3A CN201610737146A CN106145341A CN 106145341 A CN106145341 A CN 106145341A CN 201610737146 A CN201610737146 A CN 201610737146A CN 106145341 A CN106145341 A CN 106145341A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 62
- 239000003513 alkali Substances 0.000 claims abstract description 41
- 239000002351 wastewater Substances 0.000 claims abstract description 21
- 239000008187 granular material Substances 0.000 claims abstract description 8
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 8
- 239000011521 glass Substances 0.000 claims abstract description 5
- 238000000746 purification Methods 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 36
- 239000010865 sewage Substances 0.000 claims description 33
- 239000007788 liquid Substances 0.000 claims description 9
- 239000002585 base Substances 0.000 claims description 4
- 230000033228 biological regulation Effects 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000008676 import Effects 0.000 claims description 2
- 239000012495 reaction gas Substances 0.000 claims description 2
- 239000010802 sludge Substances 0.000 abstract description 12
- 230000006378 damage Effects 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 238000004090 dissolution Methods 0.000 abstract description 4
- 230000014759 maintenance of location Effects 0.000 abstract description 4
- 230000002906 microbiologic effect Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000002688 persistence Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 235000010469 Glycine max Nutrition 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
- C02F3/28—Anaerobic digestion processes
- C02F3/284—Anaerobic digestion processes using anaerobic baffled reactors
-
- 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
- C02F3/28—Anaerobic digestion processes
- C02F3/2866—Particular arrangements for anaerobic reactors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/38—Gas flow rate
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of city refuse landfill anaerobic baffled reactor, including: thermostatic water tank, it is internally provided with attemperating unit, it is possible to show and control described thermostatic water tank temperature, keeps water temperature constant；Reactor, it is rectangular structure, and including multiple reative cells, each reative cell is made up of a upstream room and a downstream room；And stop granule, it is arranged on the bottom of each reative cell, by organic mesh glass support and protection, it is possible to retain mud, improves wastewater purification efficiency.Stop granule is set in reaction compartments, it is possible to increase reactor sludge retention ability, prevents mud to be brought into next reative cell, destroy biome.Use fuzzy controller and fuzzy controller in parallel, the alkali liquor addition of alkali liquor adding set is controlled, ensure the environmental condition of course of reaction, prevent the destruction that in gas generation process, course of reaction is caused by gas excessive dissolution, improve the stability that reactor runs.
Description
Technical field
The present invention relates to a kind of city refuse landfill anaerobic baffled reactor and control method thereof, belong to environmental project
Field.
Background technology
Anaerobic baffled reactor (ABR) is a new high-efficiency anaerobic reactor being made up of multi-compartment, along with anaerobism
The development of technology, the Hydraulic Design of its technique has been developed into mixed type complexity waterpower by simple pulling flow type or the formula that is thoroughly mixed
Fluidised form.Latest generation anaerobic reactor have the feature that includes: reactor has good hydraulic flow state so that it is in current
Mostly in plug-flow be thoroughly mixed the compound fluidised form that stream combines, thus there is high reactor volume utilization rate, obtain relatively
Strong disposal ability；In can making a reactor, microorganism grows in different regions, connects with the water inlet of different phase
Touch, realize biophasic separation to a certain extent, thus the treatment effect of facility can be stabilized and increased；Exist by extending current
Flow path in reactor, promotion waste water contacts with sewage.
Research shows, ABR can process different types of waste water, such as to low concentration, high concentration, sulfate-containing wastewater,
Dyeing waste water, soybean wastewater etc. all can effectively process.
In existing reactor, mostly deflection plate is equidistantly to be uniformly arranged, owing to being uniformly arranged upper and lower deflection plate,
The problems such as the loss easily producing cutout, dead band and biosolids.End at the deflection plate of ABR reactor is provided with certain angle
The corner of degree, this is configured with beneficially retaining of mud and continuing of current, but owing to current and air-flow act on simultaneously, still can be by
Partial sludge brings next compartment into, destroys the flora in compartment and environment, reduces the stability that reactor runs.Meanwhile,
Along with the carrying out of reaction, the water flow of reactor usually can produce deviation with flow of inlet water, there will be severe cutout phenomenon,
The poor stability that reactor runs, makes troubles to sewage disposal process.
Summary of the invention
The present invention has designed and developed a kind of anaerobic baffled reactor, it is possible to overcome existing anaerobic baffled reactor mud
Interception capacity causes the most by force the problem that the flora in compartment and environment are destroyed.
Another goal of the invention of the present invention: use fuzzy controller and fuzzy controller in parallel, alkali liquor is added dress
The alkali liquor addition put is controlled, it is ensured that the environmental condition of course of reaction, prevents in gas generation process gas excessive dissolution to instead
Answer the destruction that process causes, improve the stability that reactor runs.
The technical scheme that the present invention provides is:
A kind of city refuse landfill anaerobic baffled reactor, including:
Thermostatic water tank, it is internally provided with attemperating unit, it is possible to show and control described thermostatic water tank temperature, keeps water temperature
Constant；
Reactor, it is rectangular structure, and including multiple reative cells, each reative cell is dirty by a upstream room and one
Room forms；And
Stopping granule, it is arranged on the bottom of each reative cell, by organic mesh glass support and protection, it is possible to retain
Mud, improves wastewater purification efficiency.
Preferably, described attemperating unit includes being arranged on the thermometer in described thermostatic water tank and heater, Yi Jishe
Put temperature control meter that is outside at described thermostatic water tank and that connect described thermometer and heater.
Preferably, the width ratio of described upstream room and described downstream room is 3:1.
Preferably, described reactor top is provided with airway.
Preferably, the side of described reactor connects storage tank, and opposite side connects water tank.
Preferably, between described storage tank and reactor, connection has pump machine, it is possible to regulation flow of inlet water.
Preferably, also include:
Gas flow sensor, it is arranged on the gas outlet of airway, it is possible to measure in course of reaction gas generated；
PH measuring instrument, it is arranged on water outlet, it is possible to measure the acid-base value of sewage after reacting；
Alkali liquor adding set, it is arranged on water inlet side, it is possible to the soda acid change in regulation course of reaction；
Liquid flow sensor, it is arranged on the import department of described alkali liquor adding set；
Controller, it connects gas flow sensor, pH measuring instrument, alkali liquor adding set, liquid flow sensor, it is possible to
Receive gas flow sensor, pH measuring instrument, the numerical value of liquid flow sensor transmission, control alkali liquor addition, gas generation
Amount and the acid-base value of course of reaction.
The purpose of the present invention realizes also by the control method of a kind of city refuse landfill anaerobic baffled reactor,
Including:
By gas generated Qc, wastewater influent time desired pH KJActual pH K during water outlet after reacting with sewages's
Difference DELTA K input fuzzy controller, the alkali liquor addition M of fuzzy controller output alkali liquor adding sets；
Described gas generated Qc, wastewater influent time desired pH KJActual pH K during water outlet after reacting with sewages
Difference DELTA K and output alkali liquor addition MsIt is divided into 7 grades；
Described gas generated QcDomain be [-8,8], the domain of difference DELTA K of pH value change is [-1,1], and alkali liquor adds
Dosage MsDomain be [-12,12], set quantizing factor be 1, scale factor is 1；
The fuzzy set of input and output is { NB, NM, NS, 0, PS, PM, PB}；
Also including fuzzy controller, it is in parallel with described fuzzy controller,
Use fuzzy controller, fuzzy control model inputs the desired pH K of i-th sewage course of reactionJWith dirt
Water reaction after water outlet time actual pH KsDeviation e, deviation variation rate ec, output PID Proportional coefficient Kp, proportional integral system
Number KiWith differential coefficient Kd, by Proportional coefficient Kp, proportion integral modulus KiWith differential coefficient KdIn input PID controller, carry out alkali
Liquid addition MsError compensation control.
Preferably, described desired pH KJActual pH K during water outlet after reacting with sewagesThe domain of deviation e be [-
1,1], the fuzzy domain of deviation variation rate ec is [-3,3], sets quantizing factor and is 1；
The Proportional coefficient K of described output PIDpFuzzy domain be [0.5,4.5], proportion integral modulus KiFuzzy domain
For [0.6,3], differential coefficient KdFuzzy domain be [0,0.1], set quantizing factor be 1；Scale factor is 1；
Described deviation e and deviation variation rate ec are divided into 7 grades；The Proportional coefficient K of output PIDp, proportion integral modulus Ki
With differential coefficient KdIt is divided into 7 grades；
The input of described fuzzy controller and the fuzzy set of output are { NB, NM, NS, 0, PS, PM, PB}.
Beneficial effect of the present invention: stop granule is set in reaction compartments, it is possible to increase reactor sludge retention
Ability, prevents mud to be brought into next reative cell, destroys biome.Use fuzzy controller and fuzzy controller in parallel,
The alkali liquor addition of alkali liquor adding set is controlled, it is ensured that the environmental condition of course of reaction, prevents gas in gas generation process
The destruction that course of reaction is caused by excessive dissolution, improves the stability that reactor runs.Temperature control system is set, it is possible at any time
Show and control temperature, it is ensured that the temperature of thermostatic water tank, making microbiologic population be in active state, enabling reative cell to apply
In many seasons multi-environment.
End at deflection plate arranges bending angle, it is ensured that the persistence of current.Use the reaction of rectangular structure
Room, it is possible to reasonably utilize floor space, space availability ratio is high, reduces cost of land.This device biosolids interception capacity is strong,
Microorganism population distributing is good, simple in construction, startup are very fast, stable, with low cost, uses the most on a large scale and promotes.Often
Individual compartment is provided above corresponding exhaustor, and the gas produced in making each compartment individually discharges.
Accompanying drawing explanation
Fig. 1 is the structural representation of the city refuse landfill anaerobic baffled reactor of the present invention.
Fig. 2 is fuzzy controller and the control strategy figure of fuzzy controller of the present invention
Fig. 3 is the gas generated Q of the present inventioncMembership function figure.
Fig. 4 is the desired pH K during wastewater influent of the present inventionJActual pH K during water outlet after reacting with sewagesDifference
The membership function figure of value Δ K.
Fig. 5 is the alkali liquor addition M of the present inventions
Fig. 6 is the membership function figure of the input deviation e of the fuzzy controller of the present invention.
Fig. 7 is the membership function figure of the input deviation rate of change ec of the fuzzy controller of the present invention.
Fig. 8 is the export ratio COEFFICIENT K of the fuzzy controller of the present inventionpMembership function figure.
Fig. 9 is the export ratio integral coefficient K of the fuzzy controller of the present inventioniMembership function figure.
Figure 10 is the output differential coefficient K of the fuzzy controller of the present inventiondMembership function figure.
Detailed description of the invention
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to description literary composition
Word can be implemented according to this.
As it is shown in figure 1, the present invention provides a kind of city refuse landfill anaerobic baffled reactor, including storage tank 101,
Inside can store different types of waste water, sewage, additionally it is possible to is connected with waste water water source, it is ensured that the operating of reactor.Pump machine
102, one end is connected by water pipe with storage tank 101, is internally provided with motor, and the rotating speed of motor is adjustable；The other end connect have into
Water water pipe 107, water inlet water pipe 107 is arranged on the top of first downstream room, sewage introduces anaerobic baffled reactor 110
(being called for short reactor 110).
Thermostatic water tank 105, for rectangular structure, is internally provided with substantial amounts of warm water, and reactor 110 is arranged on thermostatic water tank
The inside of 105, at the interior side of thermostatic water tank 105, is provided with temperature control equipment, including thermometer 104, heater 103,
Both is arranged on water surface bottom, and connects thermometer 104 and the temperature control meter 106 of heater 103, and temperature control meter 106 is arranged on
The top of thermostatic water tank, it is possible to show at any time and control temperature, it is ensured that the water temperature in thermostatic water tank 105, different seasons not
Reactor is made to be respectively provided with good disposal ability under same temperature conditions.
Reactor 110 is rectangular structure, preferred as one, in the present invention specification of reactor 110 be 3000mm ×
400mm × 1000mm, dischargeable capacity is 1000L, and uses organic clear glass material；Including 5 compartments, each compartment
All include a upstream room and a downstream room, separated by deflection plate between upstream room and downstream room, each deflection plate
End be both provided with bending angle；Preferred as one, the upstream room of the present invention and the width ratio of downstream room are 3:1.Often
The bottom of one compartment is provided with Sludge Bed, it is possible to according to the needs of sewage purification, set in the Sludge Bed of each compartment
Put different biomes.
The top of Sludge Bed is provided with granular layer 109, including multiple stop granules and upper and lower organic net of support granular layer
Hole glass plate, stops that granule has the strongest interception capacity, it is possible to makes the sludge retention rushed by water in granular layer 109, prevents
The mud only rushed in this compartment is brought in next compartment along with the flowing of sewage so that microbiologic population is dirty
Dye or destruction, reduce the treatment effect of sewage.
Corresponding point of air vent it is provided with so that the aerogenesis of each compartment mutually divides above each compartment
Open, be independent of each other, and discharge eventually through total air vent 112.Last compartment will be at reactor by drain pipe
The sewage discharge of reason is to water tank 111.
When processing sewage, opening pump machine 102, by sewage discharge to reactor 110, sewage first passes around the first compartment
Downstream room enters into Sludge Bed, and water inlet substrate reacts with microbiologic population, produces gas, due to current and aerogenesis direction one
Causing, strengthen the stirring action to Sludge Bed, make reaction thorough, wastewater purification efficiency is high, arranges on the top of Sludge Bed meanwhile
There is granular layer 109, it is possible to mud will be caused to run the stirring of Sludge Bed and the flowing of sewage due to gas in course of reaction
It is trapped in granular layer 109, prevents pollution biocenological in next compartment and destruction.
The air vent 112 of airway is provided with gas flow sensor, it is possible in real time monitoring reaction course produces
H2、CO2Gas production Deng gas；The side of the water inlet of water inlet water pipe 107 is provided with alkali liquor adding set, it is possible to add alkali
Liquid, prevents owing to the pH producing acid in course of reaction, aerogenesis dissolving causes declines problem.Also set on the inlet of alkali liquor adding set
It is equipped with liquid flow sensor；At water outlet, pH measuring instrument is installed, the pH change in real-time monitoring reaction course.
The present invention also provides for a kind of city refuse landfill anaerobic baffled reactor control method, uses fuzzy controller
In parallel with fuzzy controller, the alkali liquor addition of alkali liquor adding set is controlled.Specifically include following steps:
Step 1, respectively by gas generated Qc, wastewater influent time desired pH KJReality during water outlet after reacting with sewage
Border pH value KsDifference DELTA K and the alkali liquor addition M of alkali liquor adding setsCarry out Fuzzy Processing, input fuzzy controller,
During without controlling, gas generated QcDomain be [-8,8], the domain of difference DELTA K of pH value change be [-1,1], alkali liquor interpolation
Amount MsDomain be [-12,12], set quantizing factor be 1, scale factor is 1；
Step 2, in order to ensure control precision so that it is can well control under different environmental conditions, root
According to repetition test, the most gas generated Qc, wastewater influent time desired pH KJActual pH during water outlet after reacting with sewage
Value KsDifference DELTA K and the output alkali liquor addition M of fuzzy controllersIt is divided into 7 grades；Input and export is fuzzy
Collection be NB, NM, NS, 0, PS, PM, PB}, the membership function inputting and exporting all uses triangle to be subordinate to letter, refer to Fig. 3,
Fig. 4 and Fig. 5；
Step 3, choose fuzzy control rule and be:
(1) gas generated QcNecessarily, desired pH K during wastewater influentJActual pH during water outlet after reacting with sewage
KsDifference DELTA K increase, need increase alkali liquor addition Ms；
(2) desired pH K during wastewater influentJActual pH K during water outlet after reacting with sewagesDifference DELTA K certain,
Gas generated QcIncrease, need to increase the addition M of alkali liquors；
The concrete rule that controls of fuzzy control refers to table 1.
Table 1 fuzzy control rule table
The gas generated Q of input of fuzzy controllerc, wastewater influent time desired pH KJAfter reacting with sewage during water outlet
Actual pH KsDifference DELTA K, the output of fuzzy controller is alkali liquor adding set to use fuzzy control rule table 1 to draw
Alkali liquor addition Ms；
The membership function of input and output all uses triangular membership, uses maximum membership degree function method to solve
Fuzzy.
Step 4, employing fuzzy controller, input the desired pH of i-th sewage course of reaction in fuzzy control model
KJActual pH K during water outlet after reacting with sewagesDeviation e, deviation variation rate ec, output PID Proportional coefficient Kp, ratio
Integral coefficient KiWith differential coefficient Kd；By Proportional coefficient Kp, proportion integral modulus KiWith differential coefficient KdIn input PID controller,
Carry out alkali liquor addition MsError compensation control.When without controlling, desired pH KJActual pH during water outlet after reacting with sewage
Value KsThe domain of deviation e be [-1,1], the fuzzy domain of deviation variation rate ec is [-3,3], sets quantizing factor and is 1；Ratio
The example factor is 1；The Proportional coefficient K of output PIDpFuzzy domain be [0.5,4.5], proportion integral modulus KiFuzzy domain be
[0.6,3], differential coefficient KdFuzzy domain be [0,0.1], set quantizing factor be 1；Scale factor is 1
Step 5, in order to ensure control precision, it is achieved preferably control, experiment be repeated, it is determined that optimal input
And output level, wherein desired pH KJActual pH K during water outlet after reacting with sewagesDeviation e, deviation variation rate ec equal
It is divided into 7 grades；The Proportional coefficient K of output PIDp, proportion integral modulus KiWith differential coefficient KdIt is divided into 7 grades；Input and
The fuzzy set of output is that { NB, NM, NS, 0, PS, PM, PB}, the membership function inputting and exporting all uses triangle to be subordinate to
Letter, as illustrated in figures 6-10；
Step 6, choose fuzzy control rule and be:
(1), when deviation | e | is bigger, K is increasedpValue so that deviation quickly reduces, but create bigger simultaneously
Deviation variation rate, less K should be takend, generally take Ki=0；
(2), when | ec | and | e | value are in medium, for avoiding overshoot, K is suitably reducedpValue, make KiLess, choosing
Select appropriately sized Kd；
(3), when deviation | e | is less, K is increasedp KiValue, oscillate about not in systematic steady state value for avoiding the occurrence of
Stabilization, generally makes, when | ec | is bigger, to take less Kd；When | ec | is less, take bigger Kd；Concrete fuzzy control
Rule refers to table 2, table 3 and table 4.
The Proportional coefficient K of table 2 PIDpFuzzy control table
The proportion integral modulus K of table 3 PIDiFuzzy control table
The differential coefficient K of table 4 PIDdFuzzy control table
The Proportional coefficient K of the output of fuzzy controller, i.e. PID is drawn with fuzzy control table 2-4p, proportion integral modulus KiWith
Differential coefficient Kd, output obtains exact value through defuzzification, and the exact value input PID after the ambiguity solution of fuzzy controller controls
Device carries out error compensation control, and its control formula is:After discretization
Arrive:
U (k)=Δ Kpe(k)+ΔKi∑e(k)+ΔKd[e(k)-e(k-1)]
Stop granule is set in reaction compartments, it is possible to increase reactor sludge retention ability, prevents mud to be brought into down
One reative cell, destroys biome.Use fuzzy controller and fuzzy controller in parallel, the alkali liquor to alkali liquor adding set
Addition is controlled, it is ensured that the environmental condition of course of reaction, prevents in gas generation process gas excessive dissolution to course of reaction ring
The destruction that border condition causes, improves the stability that reactor runs.Temperature control system is set, it is possible to shows at any time and controls temperature
Degree, it is ensured that the temperature of thermostatic water tank, makes microbiologic population be in active state, enables reative cell to apply in multi-environment in many seasons
In.
End at deflection plate arranges bending angle, it is ensured that the persistence of current.Use the reaction of rectangular structure
Room, it is possible to reasonably utilize floor space, space availability ratio is high, reduces cost of land.This device biosolids interception capacity is strong,
Microorganism population distributing is good, simple in construction, startup are very fast, stable, with low cost, uses the most on a large scale and promotes.Often
Individual compartment is provided above corresponding exhaustor, and the gas produced in making each compartment individually discharges.
Although embodiment of the present invention are disclosed as above, but it is not restricted in description and embodiment listed
Using, it can be applied to various applicable the field of the invention completely, for those skilled in the art, and can be easily
Realizing other amendment, therefore under the general concept limited without departing substantially from claim and equivalency range, the present invention does not limit
In specific details with shown here as the legend with description.
Claims (9)
1. a city refuse landfill anaerobic baffled reactor, it is characterised in that including:
Thermostatic water tank, it is internally provided with attemperating unit, it is possible to show and control described thermostatic water tank temperature, keeps water temperature permanent
Fixed；
Reactor, it is rectangular structure, and including multiple compartments, each compartment is by a upstream room and a downstream room group
Become；And
Stopping granule, it is arranged on the bottom of each reative cell, by organic mesh glass support and protection, it is possible to retain dirt
Mud, improves wastewater purification efficiency.
City refuse landfill anaerobic baffled reactor the most according to claim 1, it is characterised in that described temperature control fills
Put and include being arranged on the thermometer in described thermostatic water tank and heater, and be arranged on described thermostatic water tank outside and connect institute
State the temperature control meter of thermometer and heater.
City refuse landfill anaerobic baffled reactor the most according to claim 1, it is characterised in that described upstream room
It is 3:1 with the width ratio of described downstream room.
City refuse landfill anaerobic baffled reactor the most according to claim 1, it is characterised in that described reactor
Top is provided with airway.
City refuse landfill anaerobic baffled reactor the most according to claim 4, it is characterised in that described reactor
Side connect and have a storage tank, opposite side connects water tank.
City refuse landfill anaerobic baffled reactor the most according to claim 5, it is characterised in that described storage tank
With connection has pump machine between reactor, it is possible to regulation flow of inlet water.
7. according to the city refuse landfill anaerobic baffled reactor according to any one of claim 1-6, it is characterised in that
Also include:
Gas flow sensor, it is arranged on the gas outlet of airway, it is possible to measure in course of reaction gas generated；
PH measuring instrument, it is arranged on water outlet, it is possible to measure the acid-base value of sewage after reacting；
Alkali liquor adding set, it is arranged on water inlet side, it is possible to the soda acid change in regulation course of reaction；
Liquid flow sensor, it is arranged on the import department of described alkali liquor adding set；
Controller, it connects gas flow sensor, pH measuring instrument, alkali liquor adding set, liquid flow sensor, it is possible to receive
Gas flow sensor, pH measuring instrument, liquid flow sensor transmission numerical value, control alkali liquor addition, gas generated and
The acid-base value of course of reaction.
8. the control method of a city refuse landfill anaerobic baffled reactor, it is characterised in that including:
By gas generated Qc, wastewater influent time desired pH KJActual pH K during water outlet after reacting with sewagesDifference
Δ K inputs fuzzy controller, the alkali liquor addition M of fuzzy controller output alkali liquor adding sets；
Described gas generated Qc, wastewater influent time desired pH KJActual pH K during water outlet after reacting with sewagesDifference
Value Δ K and output alkali liquor addition MsIt is divided into 7 grades；
Described gas generated QcDomain be [-8,8], the domain of difference DELTA K of pH value change is [-1,1], alkali liquor addition
MsDomain be [-12,12], set quantizing factor be 1, scale factor is 1；
The fuzzy set of input and output is { NB, NM, NS, 0, PS, PM, PB}；
Also including fuzzy controller, it is in parallel with described fuzzy controller,
Use fuzzy controller, fuzzy control model inputs the desired pH K of i-th sewage course of reactionJReact with sewage
Actual pH K during rear water outletsDeviation e, deviation variation rate ec, output PID Proportional coefficient Kp, proportion integral modulus KiWith
Differential coefficient Kd, by Proportional coefficient Kp, proportion integral modulus KiWith differential coefficient KdIn input PID controller, carry out alkali liquor interpolation
Amount MsError compensation control.
The control method of city refuse landfill anaerobic baffled reactor the most according to claim 8, it is characterised in that
Described desired pH KJActual pH K during water outlet after reacting with sewagesThe domain of deviation e be [-1,1], change of error
The fuzzy domain of rate ec is [-3,3], sets quantizing factor and is 1, and scale factor is 1；
The Proportional coefficient K of described output PIDpFuzzy domain be [0.5,4.5], proportion integral modulus KiFuzzy domain be
[0.6,3], differential coefficient KdFuzzy domain be [0,0.1], set quantizing factor be 1, scale factor is 1；
Described deviation e and deviation variation rate ec are divided into 7 grades；The Proportional coefficient K of output PIDp, proportion integral modulus KiWith micro-
Divide COEFFICIENT KdIt is divided into 7 grades；
The input of described fuzzy controller and the fuzzy set of output are { NB, NM, NS, 0, PS, PM, PB}.
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