CN107421819A - Degraded except ammonia nitrogen refuse soil and compress visualizer - Google Patents

Degraded except ammonia nitrogen refuse soil and compress visualizer Download PDF

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Publication number
CN107421819A
CN107421819A CN201710445963.6A CN201710445963A CN107421819A CN 107421819 A CN107421819 A CN 107421819A CN 201710445963 A CN201710445963 A CN 201710445963A CN 107421819 A CN107421819 A CN 107421819A
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China
Prior art keywords
gas
visualizer
ammonia nitrogen
test cavity
test
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CN201710445963.6A
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Chinese (zh)
Inventor
赵燕茹
刘铁军
陈湘生
黄力平
邹笃建
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SHENZHEN METRO GROUP CO Ltd
Shenzhen Graduate School Harbin Institute of Technology
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SHENZHEN METRO GROUP CO Ltd
Shenzhen Graduate School Harbin Institute of Technology
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Priority to CN201710445963.6A priority Critical patent/CN107421819A/en
Publication of CN107421819A publication Critical patent/CN107421819A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/18Performing tests at high or low temperatures
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02Details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02Details
    • G01N3/06Special adaptations of indicating or recording means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02Details
    • G01N3/06Special adaptations of indicating or recording means
    • G01N3/068Special adaptations of indicating or recording means with optical indicating or recording means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014Type of force applied
    • G01N2203/0016Tensile or compressive
    • G01N2203/0019Compressive
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003Generation of the force
    • G01N2203/0042Pneumatic or hydraulic means
    • G01N2203/0048Hydraulic means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0058Kind of property studied
    • G01N2203/0069Fatigue, creep, strain-stress relations or elastic constants
    • G01N2203/0075Strain-stress relations or elastic constants
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/0202Control of the test
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/022Environment of the test
    • G01N2203/0222Temperature
    • G01N2203/0226High temperature; Heating means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/022Environment of the test
    • G01N2203/023Pressure
    • G01N2203/0232High pressure
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/022Environment of the test
    • G01N2203/0236Other environments
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/06Indicating or recording means; Sensing means
    • G01N2203/0641Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Processing Of Solid Wastes (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

One kind compresses visualizer except the degraded of ammonia nitrogen refuse soil, including:Experimental rig, it has test cavity, and in being provided with balancing gate pit in test cavity, load frame, temperature controlled compartment are provided with the outside of test cavity, in setting having heaters, first pressure sensor and temperature sensor in temperature controlled compartment;Leachate recirculation device, leachate recirculation device include mozzle, and it is connected with UASB reactors;Hydraulic axial pressue device, it is connected with balancing gate pit;Gas reclaims detection means, and it includes gas export line, and gas export line is provided with gas analyzer;Control system.The visualizer is intended realizing automation axial pressure using hydraulic axial pressue device, confined pressure is provided in the case where simulating varying environment temperature conditionss simultaneously, solves the limitation that degraded instrument can not simulate true confined pressure, and realize and biodegradation is accelerated by leachate recirculation, test process realizes digitlization and sequencing, human error is removed, ensure that the precision and reliability of experiment.

Description

Degraded except ammonia nitrogen refuse soil and compress visualizer
Technical field
It is more specifically, more particularly to a kind of except ammonia nitrogen refuse soil drops the present invention relates to garbage degradation equipment technical field Decompress visualizer.
Background technology
With the fast development of China's Urbanization Construction and sharply increasing for urban population, the phenomenon of " garbage-surrounded city " is general All over appearance.In view of the existing trash processing way in China based on sanitary landfills, therefore conventional garbage processing method is ground Study carefully and show, the solid waste after closing, because of the differential settlement that internal degraded induces, internal air-liquid collection system rupture is special It is not being continuously increased with landfill body volume, it is possible to serious environmental geological Hazard can be induced, occupying safety to people causes directly Connect threat.
With the increase of rubbish from cooking proportion in solid waste, degraded produces percolate, landfill gas etc. all can two Secondary utilization, therefore the refuse soil after closing just becomes an available biomass energy body.Refuse soil after closing It is substantially carried out following biology, chemistry and mechanical behavior:Biochemical degradation, sedimentation and deformation, the deformation of creep, skeleton structure and solid-liquid-gas Dynamic evolution.The percolate that resourcebility caused by degraded utilizes contains plurality of heavy metal, if being not added with management and control to percolate, It is likely to result in the deep layer pollution of soil.
At present, traditional soil mechanics compression test consolidation apparatus can only study conventional native characteristic, and it does not account for landfill waste Other various factors couplings act in native degradation process, and the biodegradation in soot, settling behavior typically continue decades very Supreme a century.In consideration of it, in order to preferably study compression and Biodegradation Mechanism of the refuse soil in outside load action, state The scientific worker for being inside engaged in environmental geotechnical have developed based on different test objectives and be only capable of testing a certain special test mesh Degraded sedimentation experiment instrument.In the prior art, using relatively broad refuse soil degraded settlement observation instrument compression system More using manual systems such as lever, counterweight work pulleys, requirement of both automation and precision is unable to reach on measuring accuracy, Visualizer can only simulate one-dimensional axial compressive force simultaneously, not be inconsistent with the stressing conditions of the refuse soil of reality, and can not monitor degraded With Coupling with Mechanics process behavior, and test post processing part it is relatively not perfect enough, larger difference, Zhi Nengyong be present in test data Qualitatively research and analyse.Meanwhile soil mechanics compression test consolidation apparatus matching used recharge system directly oozing discharge Filtrate sends soil sample back to, and influence of the ammonia nitrogen of percolate middle and high concentration to the activity of biotic population in degraded body etc., directly to drop Solution speed has an impact, such as when temperature reaches more than 70 DEG C, the bioactivity of methanogen is down to zero.
The content of the invention
(1) technical problem
In summary, how to solve traditional soil mechanics compression test to flow back existing for the supporting recharge system of consolidation apparatus percolate There is the problem of having a strong impact on to biotic population activity, become those skilled in the art's urgent problem to be solved.
(2) technical scheme
The invention provides one kind except ammonia nitrogen refuse soil degraded compression visualizer, including:
Experimental rig, the experimental rig have the test cavity for loading test material, set in the test cavity There is balancing gate pit, the balancing gate pit is arranged in the test cavity and can form a sealed chamber with the test cavity, in Shower nozzle is provided with the downside of the balancing gate pit, load frame, the experiment are provided with the outside of the test cavity Chamber is arranged in the load frame, and the madial wall of the test cavity and the load frame is arranged at intervals and forms temperature controlled compartment, in institute State and having heaters, first pressure sensor and temperature sensor are set in temperature controlled compartment;
Leachate recirculation device, the leachate recirculation device include mozzle, one end of the mozzle with it is described The bottom wall connection of test cavity, the other end of the mozzle is provided with the leachate collection cup for collecting percolate, and described Leachate collection cup is connected with UASB reactors by feed pump, and the UASB reactors are connected with external gas collector, The outlet of the UASB reactors is connected with nitration reaction device, and it is anti-that the outlet of the nitration reaction device is connected with ANAMMOX Device is answered, the outlet of the ANAMMOX reactors is connected by reflux pump with the shower nozzle, the UASB reactors, described Nitration reaction device, the ANAMMOX reactors and the shower nozzle are in turn connected to form leachate recirculation system;
Hydraulic axial pressue device, the hydraulic axial pressue device include pressure volume controller and with the pressure The hydraulic control hammer of power fixing fabric structure device control connection, the hydraulic control hammer are connected with the balancing gate pit;
Gas reclaims detection means, and the gas recovery detection means includes gas export line, defeated in the gas Go out and valve is provided with pipeline, the end of the gas export line is provided with test gas collection cups, in the experiment gas The gas analyzer for being analyzed test gas is provided with body collection cups;
Control system, the control system include control main frame and adopted with the data that the control main frame signal is connected Collect server, the data acquisition server is connected with the first pressure sensor and the temperature sensor signal.
Preferably, present invention additionally comprises there is percolate analytical equipment, the percolate analytical equipment includes percolate point Analyzer, element determination instrument and PH meters, the percolate analyzer, the element determination instrument and inspection possessed by PH meters End is surveyed to may be contained within the leachate collection cup.
Preferably, present invention additionally comprises there is secondary buffer pond, the secondary buffer pond is arranged at the nitration reaction device Between the ANAMMOX reactors, the buffering for percolate;The bottom in the secondary buffer pond by mud return line, The mud return line connects with the nitration reaction device, in being provided with sludge reflux pump on the mud return line.
Preferably, it is provided with tail gas collecting device on the UASB reactors and the ANAMMOX reactors.
Preferably, it is provided with first flowmeter between the ANAMMOX reactors and the shower nozzle;In the gas Second flowmeter and air gauge are provided with body output pipe.
Preferably, the bottom of the test cavity is provided with the filter element with filtering function.
Preferably, the nitration reaction device includes nitration reaction device framework, in the nitration reaction device framework Inside it is provided with the first agitating device and film carries nitrobacteria, is provided with the bottom of the nitration reaction device framework for filling The air pump of gas.
Preferably, the ANAMMOX reactors include ANAMMOX reactor frameworks, in the ANAMMOX reactors structure ANAMMOX bacteria carriers and the second agitating device are provided with frame.
Preferably, in being provided with load sensor on the bottom surface of the balancing gate pit, the load sensor and the number Connected according to acquisition server signal.
Preferably, it is provided with the outside of the load frame for being detected to test material decrement in test cavity Laser range sensor, the laser range sensor are connected with the data acquisition server signal.
(3) beneficial effect
Present invention aims at a kind of refuse soil degraded compression visualizer having except ammonia nitrogen function is provided, the visualizer is intended Automation axial pressure is realized using hydraulic axial pressue device, while confined pressure is provided in the case where simulating varying environment temperature conditionss, The limitation of confined pressure can not be provided by solving degraded instrument, and is realized and accelerated biodegradable, the amount of realizing by leachate recirculation Change the function of monitoring solid, liquid, gas dynamic change, test process realizes digitlization and sequencing, removes human error, ensure that examination The precision and reliability tested.
This patent has the beneficial effect that:1st, provide axle pressure using intelligent hydraulic device and confined pressure, pressure volume controller carry The controllable setting of soil sample stress is supplied;2nd, it is incubated using the liquid for providing confined pressure, reduces experimentation cost;3rd, solves recharge The problem of percolate middle and high concentration ammonia inhibition biodegradation, recharge liquid is improved to the biodegradable efficiency of refuse soil, is collected PH value, COD and the BOD in percolate have been monitored while percolate, can automated setting, flow, the flow velocity of monitoring percolate; 4th, using noncontacting proximity sensor and software cooperating, the damaged mechanical property of the soil sample caused by disposing tester has been broken Limitation, while the change of monitoring soil sample decrement in real time improves the accuracy and reliability of test data.
Brief description of the drawings
Fig. 1 is except scopic structural representation is compressed in the degraded of ammonia nitrogen refuse soil in the embodiment of the present invention;
In Fig. 1, the corresponding relation of component names and accompanying drawing number is:
Test cavity 1, balancing gate pit 2, shower nozzle 3, load frame 4, mozzle 5,
Leachate collection cup 6, UASB reactors 7, nitration reaction device 8,
ANAMMOX reactors 9, hydraulic control hammer 10, gas export line 11,
Test gas collection cups 12, gas analyzer 13, control main frame 14,
Data acquisition server 15, percolate analytical equipment 16, secondary buffer pond 17.
Embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following examples are used for Illustrate the present invention, but can not be used for limiting the scope of the present invention.
In the description of the invention, unless otherwise indicated, " multiple " are meant that two or more;Term " on ", " under ", "left", "right", " interior ", " outer ", " front end ", " rear end ", " head ", the orientation of the instruction such as " afterbody " or position relationship be Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or dark Show that the device of meaning or element there must be specific orientation, with specific azimuth configuration and operation, thus it is it is not intended that right The limitation of the present invention.In addition, term " first ", " second ", " the 3rd " etc. be only used for describe purpose, and it is not intended that instruction or Imply relative importance.
In the description of the invention, it is necessary to which explanation, unless otherwise clearly defined and limited, term " connected ", " connects Connect " it should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or it is integrally connected;It can be machine Tool connects or electrical connection;Can be joined directly together, can also be indirectly connected by intermediary.For this area For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Fig. 1 is refer to, Fig. 1 is except scopic structural representation is compressed in the degraded of ammonia nitrogen refuse soil in the embodiment of the present invention.
The invention provides one kind except ammonia nitrogen refuse soil degraded compression visualizer, including:Experimental rig, experimental rig have For the test cavity 1 of loading test material, in being provided with balancing gate pit 2 in test cavity 1, balancing gate pit 2 is arranged at test cavity 1 It is interior and can with test cavity 1 formed a sealed chamber, in being provided with shower nozzle 3 on the downside of balancing gate pit 2, in experiment The outside of chamber 1 is provided with load frame 4, and test cavity 1 is arranged in load frame 4, and the madial wall interval of test cavity 1 and load frame 4 is set Put and form temperature controlled compartment, in setting having heaters, first pressure sensor and temperature sensor in temperature controlled compartment;Percolate returns Filling device, leachate recirculation device include mozzle 5, and one end of mozzle 5 connects with the bottom wall of test cavity 1, mozzle 5 The other end is provided with the leachate collection cup 6 for collecting percolate, and UASB is connected with by feed pump with leachate collection cup 6 Reactor 7, UASB reactors 7 are connected with external gas collector, and the outlet of UASB reactors 7 is connected with nitration reaction device 8, the outlet of nitration reaction device 8 is connected with ANAMMOX reactors 9, and the outlet of ANAMMOX reactors 9 passes through reflux pump and leaching Bath shower nozzle 3 is connected, and UASB reactors 7, nitration reaction device 8, ANAMMOX reactors 9 and shower nozzle 3 are in turn connected to form Leachate recirculation system;Hydraulic axial pressue device, hydraulic axial pressue device include pressure volume controller and with pressure The hydraulic control hammer 10 of power fixing fabric structure device control connection, hydraulic control hammer 10 are connected with balancing gate pit 2;Gas recovery detection dress Put, gas recovery detection means includes gas export line 11, defeated in gas in being provided with valve on gas export line 11 The end for going out pipeline 11 is provided with test gas collection cups 12, is used in being provided with test gas collection cups 12 to test gas The gas analyzer 13 analyzed;Control system, control system include control main frame 14 and with the signal of control main frame 14 The data acquisition server 15 of connection, data acquisition server 15 connect with first pressure sensor and temperature sensor signal Connect.
Experimental rig is provided with test cavity 1, the loading test soil sample in test cavity 1, and pressure is provided with the top of test cavity 1 There is a hydraulic control to hammer 10 into shape for piston 2, hydraulic axial pressue device, and hydraulic control hammer 10 is connected with balancing gate pit 2, passes through liquid 10 directly excitations of voltage-controlled system hammer produce axle power, and simulation pressurization is carried out to the experiment soil sample loaded in test cavity 1.
Pressure at right angle has load sensor by balancing gate pit 2 and loading platform transmission, and in balancing gate pit 2, can and When feed back soil pressure force value.
A load frame 4 is provided with the outside of test cavity 1, test cavity 1 is arranged in load frame 4, test cavity 1 and load The madial wall of frame 4 is arranged at intervals and forms temperature controlled compartment.The confined pressure fluid of simulation soil confined pressure is mounted with temperature controlled compartment.Confined pressure Fluid has pressure and heating dual-use function simultaneously.
In the present invention, test parameters is set first with the function that presets of pressure volume controller;It Confined pressure fluid is pressed into the temperature controlled compartment of closing further according to the parameter (confined pressure value and temperature value) of setting afterwards, while utilizes heating Device is heated to the confined pressure fluid loaded in the temperature controlled compartment of closing, and internal confined pressure and temperature environment are filled so that simulation is actual.
Mozzle 5 is set in the bottom of test cavity 1, percolate retracting device is connected, using under the top loading platform of test cavity 1 The shower nozzle 3 of the pin umbrella shape of the controllable flow rate of installation realizes the real-time recharge of percolate.
It is in turn connected to form and is oozed by UASB reactors 7, nitration reaction device 8, ANAMMOX reactors 9 and shower nozzle 3 Filtrate recharge system, wherein, nitration reaction device 8 is that short distance nitration-Anammox removes ammonia nitrogen device, pacifies process sequence, nitre Change reaction unit 8 to be arranged on before leachate recirculation operation.Nitration reaction device 8 includes the framework of nitration reaction device 8, in nitre Change and the first agitating device and film load nitrobacteria are provided with the framework of reaction unit 8, in the bottom of the framework of nitration reaction device 8 It is provided with the air pump for inflation.Using nitrobacteria by the part mineralized nitrogen in percolate stoste into cultured water, then profit With ANAMMOX bacterium under anaerobic environment, using cultured water as electron acceptor, carry out microbial reaction and directly generate N2, so as to reach To the purpose of ammonia nitrogen removal.
Gas recovery detection means is to set gas export line 11 at the top of test cavity 1, passes through gas export line 11 Test gas collection cups 12 are introduced, further test point is carried out to the gas overflowed in test cavity 1 using gas analyzer 13 Analysis.
Control system is passed by control main frame 14 (computer), data acquisition server 15, radio temperature sensor, loading Sensor, pressure sensor etc. carry out automatic data collection and control.
In the present invention, control system includes 14, one, a dynamic control main frame data acquisition server 15, one Pressure volume controller and multiple sensors.Hydraulic control hammer 10 is arranged on load frame 4, in the lower end of hydraulic control hammer 10 Load bar is set, and the lower end of load bar is connected with balancing gate pit 2 and sets load sensor, and load sensor takes with data acquisition The signal connection of business device 15.Water source is provided with pressure volume controller, pressure setting is carried out by dynamic control main frame 14, by water Liquid in source is pressed into hydraulic control hammer 10 by mozzle 5, so as to provide axle pressure.
Test cavity 1 is set in load frame 4, the temperature controlled compartment of closing is formed between test cavity 1 and load frame 4.Diafiltration is set Liquid collection cups 6, leachate collection cup 6 are connected by mozzle 5 with temperature controlled compartment bottom.Heater is arranged in temperature controlled compartment, it is right Confined pressure fluid is heated, and confined pressure fluid can be used as heat insulation liquid, and to provide constant temperature, radio temperature sensor is arranged on temperature Control is indoor, to monitor the temperature in temperature controlled compartment.
Outside in load frame 4 sets a hot recycle pump, and hot recycle pump is connected to outside temperature controlled compartment by pipeline, ensures to protect Geothermal liquid circulation, to solve the drawbacks of heater point type heating tape is come.
Temperature controlled compartment is made up of lucite, and its bottom is provided with dismountable seal base, and bottom plate both sides are screwed.
Percolate analytical equipment 16 is made up of BOD analyzers, COD analyzers and PH meter.
Leachate recirculation device be by except the percolate after ammonia nitrogen by pin umbrella shape shower nozzle 3 into test cavity 1 Soil sample recharge, the lower end of pin umbrella shape shower nozzle 3 penetrate test cavity 1 load flat board, be arranged in test cavity 1, its end Portion sets umbrella shape leaching shower nozzle, and the middle part of mozzle 5 sets controllable type flowmeter, control diafiltration flow quantity, its leaching intensity controlled System is in 0.1~10mL/s.
Leachate recirculation system uses CANON techniques, and leachate recirculation system includes the (upflow type anaerobic of UASB reactors 7 Sludge bed reactor), nitration reaction device 8 (short distance nitration biological denitrificaion nitration reaction device 8) and ANAMMOX reactors 9 (anaerobic ammonia oxidation reactor) three parts.
UASB reactors 7 are provided with feed pump, are connected by feed pump with leachate collection cup 6, UASB reactors 7 and nitre Change reaction unit 8 to be connected.The water outlet of UASB reactors 7 enters in nitration reaction device 8, and nitration reaction device 8 is connected with secondary slow Rush pond 17.A part of sludge of secondary buffer pond 17 in secondary buffer pond 17 flows back into nitration reaction dress by sludge reflux pump 8 are put, the water outlet of another part secondary buffer pond 17 in secondary buffer pond 17 enters ANAMMOX reactors 9.
Limit herein:The dischargeable capacity of UASB reactors 7 is 8.25L;The dischargeable capacity of nitration reaction device 8 is 15L; ANAMMOXR reactors available capacity is 8.25L.
The material of nitration reaction device 8 is lucite.Nitration reaction device 8 is divided into ten cell compartments, wherein first Cell compartment is anoxic zone, and remaining is aerobic zone, and nitration reaction device 8 is built with the nitrobacteria with filter membrane.
It is carrier that anaerobic ammonia oxidizing bacteria is inoculated with ANAMMOXR reactors with non-woven fabrics and porous polyester polymer, and with Stainless steel is fixed.
Gas recovery detection means includes gas collection cup, GEM2000plus refuse landfills gas analyzer 13, red- Y smart gas mass flow controllers and valve, gas collection cup pass through conduit and the loading platform phase at the top of test cavity 1 Even, red-y smart gas mass flow controllers and valve are arranged in the middle part of conduit, for measuring and controlling the stream of aerogenesis Amount, GEM2000plus refuse landfills gas analyzer 13 is arranged on the end of gas collection cup, to the gaseous product of collection into Part enters Mobile state tracking and testing.
In the present invention, the physical dimension of the body of test cavity 1 is:Diameter 400mm, high 800mm copper cylindrical drum, experiment The top of chamber 1 is provided with loading platform, and loading platform bottom is provided with balancing gate pit 2, soil body sample is placed in test cavity 1, and bottom is set Filter layer.
The outside of test cavity 1 sets laser displacement sensor, and laser displacement sensor is erected on load frame 4, laser displacement Sensor uses contactless structure, is connected by data acquisition unit with terminal, supporting by laser displacement sensor GDSLAB softwares can draw the axial deformation of soil sample.
Present invention aims at a kind of refuse soil degraded compression visualizer having except ammonia nitrogen function is provided, the visualizer is intended Automation axial pressure is realized using hydraulic axial pressue device, while confined pressure is provided in the case where simulating varying environment temperature conditionss, The limitation of confined pressure can not be provided by solving degraded instrument, and is realized and accelerated biodegradable, the amount of realizing by leachate recirculation Change the function of monitoring solid, liquid, gas dynamic change, test process realizes digitlization and sequencing, removes human error, ensure that examination The precision and reliability tested.
This patent has the beneficial effect that:1st, provide axle pressure using intelligent hydraulic device and confined pressure, pressure volume controller carry The controllable setting of soil sample stress is supplied;2nd, it is incubated using the liquid for providing confined pressure, reduces experimentation cost;3rd, solves recharge The problem of percolate middle and high concentration ammonia inhibition biodegradation, recharge liquid is improved to the biodegradable efficiency of refuse soil, is collected PH value, COD and the BOD in percolate have been monitored while percolate, can automated setting, flow, the flow velocity of monitoring percolate; 4th, using noncontacting proximity sensor and software cooperating, the damaged mechanical property of the soil sample caused by disposing tester has been broken Limitation, while the change of monitoring soil sample decrement in real time improves the accuracy and reliability of test data.
Based on the above-mentioned refuse soil degraded compression visualizer having except ammonia nitrogen function, its specifically used method is:
(1) first, check between balancing gate pit 2 and temperature controlled compartment, between base and temperature controlled compartment and each external mouth of pipe it is close Feng Xing;
(2) after determining that air-tightness is good, the soil sample made is put into test cavity 1, opens laser sensor;
(3) after the completion of filling sample, load sensor, radio temperature sensor, pressure sensor and heater are checked whether Normal operation.Pressure volume controller, data acquisition server 15 and dynamic control main frame 14 are opened, in pressure volume controller Middle preset pressure, carry out axially loaded according to test requirements document and confined pressure is provided, while recorded in real time using laser displacement sensor The change of decrement;
(4) each device in leachate recirculation device and leachate recirculation system is opened, is surveyed by BOD analyzers, COD Determine instrument and PH meters carry out the parameter such as BOD, COD and pH value to obtained percolate stoste and are measured.Meanwhile using except ammonia nitrogen Device removes the ammonia nitrogen in percolate stoste, strong using the simulated rainfall of pin umbrella shape shower nozzle 3 and leachate recirculation, leaching Degree is controlled with controllable type flowmeter.
(5) gas recovery detection means is opened, gas is collected using saturation Nacl solution, utilizes air gauge and red-y Smart gas mass flow controllers monitor sample under outside stress field, temperature field and simulated rainfall environment because biochemical anti- The change of landfill atmospheric pressure and flow caused by answering, using GEM2000plus refuse landfills gas analyzer 13 to gas Composition enters Mobile state trace analysis.
The specific embodiment of the present invention is as follows:
First, check between balancing gate pit 2 and temperature controlled compartment, between base and temperature controlled compartment and each external mouth of pipe sealing Property;After determining that air-tightness is good, the soil sample made is put into test cavity 1, density of soil sample 1.22g/cm3;Open and swash Optical displacement sensor;After the completion of filling sample, pressure sensor, radio temperature sensor, load sensor, heater are checked, is opened Pressure volume controller, data acquisition server 15 and dynamic control main frame 14, preset pressure is in pressure volume controller 100MPa, carry out axially loaded according to test requirements document and confined pressure is provided, while utilize the real-time recording compressed of laser displacement sensor The change of amount;After axial loading system starts, each device in leachate recirculation device and leachate recirculation system is opened, is led to The measure that BOD analyzers, COD analyzers and PH meters carry out the parameter such as BOD, COD and pH value to obtained percolate stoste is crossed, Meanwhile using the ammonia nitrogen removed except ammonia nitrogen device in percolate stoste, using the simulated rainfall of pin umbrella shape shower nozzle 3 with oozing Filtrate recharge, leaching intensity are controlled in 0.1~10mL/s with controllable type flowmeter 3-6.Gas recovery detection means is opened, is utilized Saturation Nacl solution collects gas, and sample is monitored in outside using air gauge and red-y smart gas mass flow controllers Because of the change of landfill atmospheric pressure and flow caused by biochemical reaction under stress field, temperature field and simulated rainfall environment, utilize GEM2000plus refuse landfills gas analyzer 13 enters Mobile state trace analysis to the composition of gas.
Embodiments of the invention provide for the sake of example and description, and are not exhaustively or by this to send out It is bright to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Choosing Select and describe embodiment and be to more preferably illustrate the principle and practical application of the present invention, and make one of ordinary skill in the art It will be appreciated that the present invention is so as to designing the various embodiments with various modifications suitable for special-purpose.

Claims (10)

1. one kind is except ammonia nitrogen refuse soil degraded compression visualizer, it is characterised in that including:
Experimental rig, the experimental rig have the test cavity (1) for loading test material, are provided with the test cavity Balancing gate pit (2), the balancing gate pit are arranged in the test cavity and can form a sealed chamber with the test cavity, In being provided with shower nozzle (3) on the downside of the balancing gate pit, load frame (4) is provided with the outside of the test cavity, The test cavity is arranged in the load frame, and the madial wall of the test cavity and the load frame is arranged at intervals and forms temperature Room is controlled, in setting having heaters, first pressure sensor and temperature sensor in the temperature controlled compartment;
Leachate recirculation device, the leachate recirculation device include mozzle (5), one end of the mozzle and the examination The bottom wall connection of chamber is tested, the other end of the mozzle is provided with the leachate collection cup (6) for collecting percolate, and described Leachate collection cup is connected with UASB reactors (7) by feed pump, and the UASB reactors are connected with external gas collection dress Put, the outlet of the UASB reactors is connected with nitration reaction device (8), and the outlet of the nitration reaction device is connected with ANAMMOX reactors (9), the outlet of the ANAMMOX reactors are connected by reflux pump with the shower nozzle, the UASB Reactor, the nitration reaction device, the ANAMMOX reactors and the shower nozzle are in turn connected to form percolate and returned Fill system;
Hydraulic axial pressue device, the hydraulic axial pressue device include pressure volume controller and with the pressure body The hydraulic control hammer (10) of plot controller control connection, the hydraulic control hammer are connected with the balancing gate pit;
Gas reclaims detection means, and the gas recovery detection means includes gas export line (11), defeated in the gas Go out and valve is provided with pipeline, the end of the gas export line is provided with test gas collection cups (12), in the examination The gas analyzer (13) being provided with for being analyzed test gas is tested on gas collection cup;
Control system, the control system include control main frame (14) and adopted with the data that the control main frame signal is connected Collect server (15), the data acquisition server connects with the first pressure sensor and the temperature sensor signal Connect.
It is 2. according to claim 1 except ammonia nitrogen refuse soil degraded compression visualizer, it is characterised in that
Also include percolate analytical equipment (16), the percolate analytical equipment includes percolate analyzer, element determination Instrument and PH meters, the percolate analyzer, the element determination instrument and test side possessed by PH meters may be contained within In the leachate collection cup.
It is 3. according to claim 1 except ammonia nitrogen refuse soil degraded compression visualizer, it is characterised in that
Also include secondary buffer pond (17), the secondary buffer pond is arranged at the nitration reaction device and the ANAMMOX Buffering between reactor, for percolate;
The bottom in the secondary buffer pond is connected by mud return line, the mud return line with the nitration reaction device, In being provided with sludge reflux pump on the mud return line.
It is 4. according to claim 1 except ammonia nitrogen refuse soil degraded compression visualizer, it is characterised in that
Tail gas collecting device is provided with the UASB reactors and the ANAMMOX reactors.
It is 5. according to claim 1 except ammonia nitrogen refuse soil degraded compression visualizer, it is characterised in that
First flowmeter is provided between the ANAMMOX reactors and the shower nozzle;
In being provided with second flowmeter and air gauge on the gas export line.
It is 6. according to claim 1 except ammonia nitrogen refuse soil degraded compression visualizer, it is characterised in that
The bottom of the test cavity is provided with the filter element with filtering function.
It is 7. according to claim 1 except ammonia nitrogen refuse soil degraded compression visualizer, it is characterised in that
The nitration reaction device includes nitration reaction device framework, in being provided with first in the nitration reaction device framework Agitating device and film carry nitrobacteria, and the bottom of the nitration reaction device framework is provided with the air pump for inflation.
It is 8. according to claim 1 except ammonia nitrogen refuse soil degraded compression visualizer, it is characterised in that
The ANAMMOX reactors include ANAMMOX reactor frameworks, are provided with the ANAMMOX reactors framework ANAMMOX bacteria carriers and the second agitating device.
9. being degraded except ammonia nitrogen refuse soil according to any one of claim 1 to 8 compresses visualizer, it is characterised in that
In being provided with load sensor on the bottom surface of the balancing gate pit, the load sensor and the data acquisition server Signal connects.
It is 10. according to claim 9 except ammonia nitrogen refuse soil degraded compression visualizer, it is characterised in that
It is provided with the outside of the load frame for being passed to the laser ranging that test material decrement is detected in test cavity Sensor, the laser range sensor are connected with the data acquisition server signal.
CN201710445963.6A 2017-06-14 2017-06-14 Degraded except ammonia nitrogen refuse soil and compress visualizer Pending CN107421819A (en)

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CN110608996A (en) * 2018-06-14 2019-12-24 天水红山试验机有限公司 Solid waste physical simulation test system
CN114280271A (en) * 2021-11-23 2022-04-05 中北大学 Testing device and testing method for degradation rate of biodegradable high polymer material in soil
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