CN104360036B - Aeration zone in-situ solution monitoring device and ammonia nitrogen strengthen nitrification and method - Google Patents

Aeration zone in-situ solution monitoring device and ammonia nitrogen strengthen nitrification and method Download PDF

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CN104360036B
CN104360036B CN201410635529.0A CN201410635529A CN104360036B CN 104360036 B CN104360036 B CN 104360036B CN 201410635529 A CN201410635529 A CN 201410635529A CN 104360036 B CN104360036 B CN 104360036B
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aeration zone
solution
original position
operating well
collection
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CN104360036A (en
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沈来新
刘培斌
石建杰
付云升
王雷
夏广卿
王惠萍
姜思华
李凤翀
王春明
吴琼
丁峰
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BEIJING INSTITUTE OF WATER
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BEIJING INSTITUTE OF WATER
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

The invention discloses a kind of aeration zone in-situ solution monitoring device and ammonia nitrogen strengthens nitrification and method, this aeration zone in-situ solution monitoring device comprises pump and is arranged at least one Solutions Solution collection tube (8) in aeration zone, described solution collection tube (8) comprises the guide part (13) and collection portion (12) arranged vertically, this collection portion (12) has hollow cavity and the wall in described collection portion (12) is provided with through hole, and described pump is communicated with the hollow cavity of described collection portion (12).Aeration zone original position ammonia nitrogen strengthens nitrification and comprises the first operating well (1) and aeration zone in-situ solution monitoring device that are close to the rubbish body (6) in aeration zone, is provided with at least one water distributor (3) from the borehole wall of described first operating well (1) to described rubbish body (6) direction.By carrying out in-situ monitoring to aeration zone solution, when not destroying unsaturated soil structure, the Ammonia Nitrification effect in aeration zone can be monitored more accurately.

Description

Aeration zone in-situ solution monitoring device and ammonia nitrogen strengthen nitrification and method
Technical field
The present invention relates to and pollute aeration zone reparation and groundwater protection technology, more specifically relate to a kind of aeration zone in-situ solution monitoring device and method and aeration zone original position ammonia nitrogen and strengthen nitrification and method.
Background technology
The accumulation of the solid wastes (rubbish body) such as the house refuse in daily life, industrial wastes can produce a large amount of ammonia nitrogen, and not there is technology at present that solve this problem, ammonia nitrogen is caused to infiltrate gradually in soil, cause soil pollution, pollution threat is to a certain degree caused to its periphery underground water simultaneously.
Pollution form in natural terrain water body and body of groundwater is mainly the main nitrogen also comprised with free ammonia and the existence of ammonium ion form with nitrate nitrogen, and the ammonia nitrogen of polluted water body is hydration ammonia, also non-ionic ammonia is claimed, non-ionic ammonia is the Main Factors causing hydrobiont to poison, and ion ammonia is relatively substantially nontoxic.Ammonia nitrogen can change into nitrite under certain condition, if drunk for a long time, the nitrite in water will form nitrosamine with protein bound, and this is a kind of strong carcinogen, totally unfavorable to health.
Therefore, researchist proposes a lot of technology promoting underground water Ammonia Nitrification for the problems referred to above, but, in these techniques a hang-up is but remained to the monitoring of the Ammonia Nitrification effect of aeration zone.Particularly in order to monitor the Ammonia Nitrification effect of aeration zone more accurately, need to carry out aeration zone sampling in aeration zone original position, because can not destroy unsaturated soil structure, the difficulty of carrying out the sampling of aeration zone solution and on-line monitoring is in position quite large.
Summary of the invention
The object of this invention is to provide a kind of aeration zone in-situ solution monitoring device that can carry out the sampling of aeration zone solution and on-line monitoring in position.
Wherein, the further investigation through inventor finds, need not destroy unsaturated soil structure, carries out aeration zone sampling in position, and can reach the object of the Ammonia Nitrification effect of aeration zone being carried out to precise monitoring.
To achieve these goals, the invention provides a kind of aeration zone in-situ solution monitoring device, it comprises pump and is arranged at least one solution collection tube in aeration zone, described solution collection tube comprises the guide part and collection portion arranged vertically, this collection portion has hollow cavity and the wall in described collection portion is provided with through hole, and described pump is communicated with the hollow cavity in described collection portion.
Preferably, described solution collection tube is arranged in aeration zone in the mode that described collection portion is downward-sloping, and the angle between the axis of described solution collection tube and surface level is 15 ° to 45 °.
The present invention also provides a kind of aeration zone in-situ solution monitoring method, and it comprises the steps:
S1, the position being close to rubbish body in aeration zone are dug the first operating well, and are drilled through mounting hole from borehole wall part be positioned at below rubbish body to aeration zone of described first operating well;
S2, the solution collection tube in above-mentioned aeration zone in-situ solution monitoring device is installed in described mounting hole, closes the gap between described mounting hole and described solution collection tube;
The solution that S3, collection come from aeration zone, and the described solution collected is detected.
Preferably, in step s3, when three nitrogen in aeration zone and total nitrogen are detected, regularly carry out solution collection, and carry out Site Detection; When three nitrogen, total organic carbon and total nitrogen in aeration zone is detected, regularly carry out solution collection, and analyze in laboratory.
The present invention also provides a kind of aeration zone original position ammonia nitrogen to strengthen nitrification, it comprises the first operating well and above-mentioned aeration zone in-situ solution monitoring device that are close to the rubbish body in aeration zone, at least one water distributor is provided with to described rubbish body direction from the borehole wall of described first operating well, described water distributor extends to below described rubbish body, to be positioned at the part below rubbish body in moistening described aeration zone, described solution collection tube is arranged in described aeration zone the part be positioned at below rubbish body.
Preferably, described aeration zone original position ammonia nitrogen strengthens nitrification and also comprises elevated tank and water trap, described elevated tank by described water trap respectively water distributor described with at least one be communicated with.
Preferably, described aeration zone original position ammonia nitrogen strengthens nitrification and also comprises the second operating well, the 3rd operating well, air compressor and vacuum pump, described second operating well is located at the relative both sides of described rubbish body respectively with described 3rd operating well, described second operating well is provided with at least one draft tube to described 3rd operating well direction, described 3rd operating well is provided with at least one exhaust tube to described second operating well direction, described draft tube is communicated with described air compressor, and described exhaust tube is communicated with described vacuum pump.
Preferably, described aeration zone original position ammonia nitrogen enhancing nitrification also comprises many extend to described aeration zone the part be positioned at below rubbish body gas collection monitoring pipe from ground.
Preferably, the gas collection that gas collection monitoring pipe described in every root comprises many different lengths is in charge of, and the different degree of depth is inserted in the lower end that described gas collection is in charge of.
Preferably, the upper end of gas collection monitoring pipe described in every root is located at the multiple protection well stakes being positioned at ground all correspondingly, and described protection well stake comprises the lid that can open and close.
Preferably, the through hole that multiple diameter is 0.3 ~ 0.7mm is equipped with on the tube wall of described water distributor, on the tube wall of described draft tube, on the tube wall of described exhaust tube, on the tube wall of described gas collection monitoring pipe and on the tube wall of middle hypomere be in charge of of described gas collection.
Preferably, described aeration zone original position ammonia nitrogen strengthens the second determining instrument that nitrification also comprises first determining instrument of monitoring the oxidation-reduction potential of aeration zone and monitors the water percentage of aeration zone, temperature and conductivity.
The present invention also provides a kind of aeration zone original position ammonia nitrogen to strengthen nitration method, and it comprises the steps:
The first operating well is dug in F1, the position being close to rubbish body in aeration zone, and drill through mounting hole from borehole wall part be positioned at below rubbish body to aeration zone of described first operating well, solution collection tube in above-mentioned aeration zone in-situ solution monitoring device is installed in described mounting hole, closes the gap between described mounting hole and described solution collection tube;
F2, in aeration zone, be positioned at part intermittent water application below rubbish body;
The solution that F3, collection come from aeration zone, and the described solution collected is detected.
Preferably, in step F 2, water supply frequency is weekly, and each output is 100 ~ 150L, and feed rate is 40 ~ 50L/h.
Preferably, described aeration zone original position ammonia nitrogen enhancing nitration method also comprises the steps:
The second operating well and the 3rd operating well are dug in F4, the position being close to rubbish body in aeration zone, and make described second operating well be located at the relative both sides of described rubbish body respectively with described 3rd operating well, at least one draft tube is arranged to described 3rd operating well direction from described second operating well, at least one exhaust tube is arranged to described second operating well direction from described 3rd operating well, described draft tube is communicated with air compressor, described exhaust tube is communicated with vacuum pump;
F5, utilize described air compressor and described vacuum pump in aeration zone, are positioned at part intermittent gas supply below rubbish body;
F6, the many gas collection monitoring pipe original positions extending to described aeration zone the part be positioned at below rubbish body from ground are utilized to monitor aeration zone gas.
Preferably, in step F 5, gas injection rate is 4 ~ 5m 3/ h, air compressor and vacuum pump run 2 ~ 3h simultaneously and then stop 4 ~ 5h.
Preferably, when water supply time overlaps with service life, air feed after first supplying water.
Preferably, described aeration zone original position ammonia nitrogen enhancing nitration method also comprises the steps:
F7, the oxidation-reduction potential of the first determining instrument to aeration zone is utilized to monitor;
F8, the second determining instrument is utilized to monitor the water percentage of aeration zone, temperature and conductivity.
Aeration zone in-situ solution monitoring device of the present invention makes to produce negative pressure in the many collection portions being arranged in the solution collection tube in aeration zone by pump, and can carry out the sampling of aeration zone solution and on-line monitoring in position.By carrying out in-situ monitoring to aeration zone solution, when not destroying unsaturated soil structure, the Ammonia Nitrification effect in aeration zone can be monitored more accurately.Further, according to the analysis to aeration zone solution in-situ monitoring effect, carry out water distribution adjustment, and Ammonia Nitrification effect can be strengthened further.
Other features and advantages of the present invention are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for instructions, is used from explanation the present invention, but is not construed as limiting the invention with embodiment one below.In the accompanying drawings:
Fig. 1 is the structural representation that aeration zone original position ammonia nitrogen of the present invention strengthens nitrification;
Fig. 2 be along the line A-A in Fig. 1 the cut-open view that cuts;
Fig. 3 be along the line B-B in Fig. 1 the cut-open view that cuts;
Fig. 4 is the structural representation of solution collection tube of the present invention;
Fig. 5 is the structural representation of gas collection monitoring pipe of the present invention;
Fig. 6 is the curve map of the aeration zone ammonia nitrogen in solution concentration change of a monitoring point;
Fig. 7 is the aeration zone ammonia nitrogen in solution concentration change of another monitoring point and the curve map of nitrate nitrogen concentration change.
Description of reference numerals
1 first operating well 2 second operating well
3 water distributor 4 draft tube
5 gas collection monitoring pipe 6 rubbish bodies
The native overlayer 8 solution collection tube of 7 table
9 the 3rd operating well 10 exhaust tubes
11 gas collections are in charge of 12 collection portions
13 guide part 14 mounting holes
15 mud tube 29 vacuum pumps
30 air compressor
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
As shown in Figure 4, the invention provides a kind of aeration zone in-situ solution monitoring device, it comprises pump and is arranged at least one solution collection tube 8 in aeration zone, solution collection tube 8 comprises the guide part 13 and collection portion 12 arranged vertically, this collection portion 12 has hollow cavity and the wall in collection portion 12 is provided with through hole, and pump (i.e. sampling pump) is communicated with the hollow cavity in collection portion 12.Aeration zone in-situ solution monitoring device of the present invention makes to produce negative pressure in the many collection portions 12 being arranged in the solution collection tube 8 in aeration zone by pump, and can carry out the sampling of aeration zone solution and on-line monitoring in position.By carrying out in-situ monitoring to aeration zone solution, when not destroying unsaturated soil structure, the Ammonia Nitrification effect in aeration zone can be monitored more accurately.
Wherein, collection portion 12 is preferably ceramic porous structure, guide part 13 is preferably solid construction, solution collection tube 8 is preferably arranged in aeration zone in the mode that collection portion 12 is downward-sloping, angle between the axis of solution collection tube 8 and surface level is a, wherein angle a can be 15 ° to 45 °, thus enables aeration zone solution flow to collection portion 12 along guide part 13, and the negative-pressure ward that produces by pump out.Further, the angle a between the axis of solution collection tube 8 and surface level is preferably 25 °.
In addition, the present invention also provides a kind of aeration zone in-situ solution monitoring method, and it comprises the steps:
S1, the position being close to rubbish body 6 in aeration zone are dug the first operating well 1, and are drilled through mounting hole 14 from borehole wall part be positioned at below rubbish body 6 to aeration zone of the first operating well 1;
S2, the solution collection tube 8 in above-mentioned aeration zone in-situ solution monitoring device is installed in mounting hole 14, closes the gap between mounting hole 14 and solution collection tube 8;
The solution that S3, collection come from aeration zone, and the solution collected is detected.
The top of rubbish body 6 is coated with the native overlayer 7 of table.Adopting above-mentioned aeration zone in-situ solution monitoring method to carry out in-situ monitoring to aeration zone solution, when not destroying unsaturated soil structure, the Ammonia Nitrification effect in aeration zone can be monitored more accurately.
Wherein, after in step s 2 solution collection tube 8 being installed on mounting hole 14, the mud tube 15 be connected with steam piano is inserted in the gap between mounting hole 14 and solution collection tube 8, open steam piano and close this gap to slip casting in the gap between mounting hole 14 and solution collection tube 8, close rear extraction mud tube 15.By the gap between closed mounting hole 14 and solution collection tube 8, and the air in aeration zone can be prevented to be drawn in collection portion 12.
Further, in step s3, when three nitrogen in aeration zone and total nitrogen are detected, regularly carry out solution collection, and carry out Site Detection.Be specially, for the detection of three nitrogen in aeration zone and total nitrogen, carry out weekly twice solution collection, detect fast after spot sampling and judge nitration reaction process.When three nitrogen, total organic carbon and total nitrogen in aeration zone is detected, regularly carry out solution collection, and analyze in laboratory.Be specially, for the detection of three nitrogen, total organic carbon and the total nitrogen in aeration zone, enter weekly once row solution collection, analyze in laboratory after on-site sampling, and contrast with the result of field quick detection, determine the effect of short-cut denitrification.
In addition, as shown in Figure 1 to Figure 3, the present invention also provides a kind of aeration zone original position ammonia nitrogen to strengthen nitrification, it comprises the first operating well 1 and above-mentioned aeration zone in-situ solution monitoring device that are close to the rubbish body 6 in aeration zone, at least one water distributor 3 is provided with to rubbish body 6 direction from the borehole wall of the first operating well 1, water distributor 3 extends to below rubbish body 6, and to be positioned at the part below rubbish body 6 in moistening aeration zone, solution collection tube 8 is arranged in aeration zone the part be positioned at below rubbish body 6.The part be positioned in aeration zone below rubbish body 6 by water distributor 3 is supplied water, and makes the aeration zone below rubbish body 6 be moisture state, further increases the reproduction speed of microorganism, is more conducive to the decomposition to ammonia nitrogen.Meanwhile, adopting aeration zone in-situ solution monitoring device to carry out in-situ monitoring to aeration zone solution, when not destroying unsaturated soil structure, the Ammonia Nitrification effect in aeration zone can be monitored more accurately.
Wherein, aeration zone original position ammonia nitrogen strengthens nitrification and also comprises elevated tank and water trap, elevated tank is communicated with at least one water distributor 3 respectively by water trap, thus equilibrium water supply can be carried out to the part be positioned in aeration zone below rubbish body 6, and make the humidity of the part be positioned in aeration zone below rubbish body 6 balanced.
As one preferred embodiment, aeration zone original position ammonia nitrogen strengthens nitrification and also comprises the second operating well 2, the 3rd operating well 9, the vacuum pump 29 being located at the air compressor 30 in the second operating well 2 and being located in the 3rd operating well 9.Second operating well 2 is located at the relative both sides of rubbish body 6 respectively with the 3rd operating well 9, second operating well 2 is provided with at least one draft tube 4 to the 3rd operating well 9 direction, 3rd operating well 9 is provided with at least one exhaust tube 10 to the second operating well 2 direction, draft tube 4 is communicated with air compressor 30, and exhaust tube 10 is communicated with vacuum pump 29.Start air compressor 30 and vacuum pump 29, make between draft tube 4 and exhaust tube 10, to define an air flow field, microbial reproduction speed in this air flow field is increased, to improve the capacity of decomposition to the ammonia nitrogen that rubbish body 6 produces, thus the environmental pollution that the ammonia nitrogen that can reduce rubbish body 6 generation causes.
Further, as shown in Figure 5, aeration zone original position ammonia nitrogen enhancing nitrification also comprises many extend to aeration zone the part be positioned at below rubbish body 6 gas collection monitoring pipe 5 from ground.The gas collection that every root gas collection monitoring pipe 5 comprises many different lengths is in charge of 11, and the different degree of depth is inserted in the lower end that gas collection is in charge of 11.Further, the upper end of every root gas collection monitoring pipe 5 is located at the multiple protection well stakes being positioned at ground all correspondingly, and protection well stake comprises the lid that can open and close.Testing staff first need open the lid of protection well stake when carrying out gas sampling, gas sampling is carried out in the upper end then gas collection bag being placed on gas collection monitoring pipe 5.For the O in aeration zone 2, NO 2, N 2o, CO 2detection, carry out twice gas collecting weekly by gas collection monitoring pipe 5, detect fast after spot sampling, detect difference position, the degree of depth aeration zone gas concentration change, judge ventilation effect and nitration reaction degree.
In addition, on the tube wall of water distributor 3, on the tube wall of draft tube 4, on the tube wall of exhaust tube 10, on the tube wall of gas collection monitoring pipe 5 and gas collection be in charge of the middle hypomere of 11 tube wall on be all preferably provided with the through hole (diameter of the plurality of through hole is all more preferably 0.5mm) that multiple diameter is 0.3 ~ 0.7mm, so that the fluid circulation inside and outside pipeline.
Further, aeration zone original position ammonia nitrogen strengthens the second determining instrument that nitrification also preferably includes first determining instrument of monitoring the oxidation-reduction potential of aeration zone and monitors the water percentage of aeration zone, temperature and conductivity.Wherein, the first determining instrument is preferably ORP analyzer, and the second determining instrument is preferably moisture temperature conductivity measuring instrument.And, as the preferred present embodiment of one, the part be positioned in aeration zone below rubbish body 6 arranges an on-line monitoring probe respectively by upper, middle and lower-ranking, these monitoring probes are connected with ORP analyzer, moisture temperature conductivity measuring instrument respectively, per hourly carry out an on-line monitoring.
Further, the present invention also provides a kind of aeration zone original position ammonia nitrogen to strengthen nitration method, and it comprises the steps:
The first operating well 1 is dug in F1, the position being close to rubbish body 6 in aeration zone, and drill through mounting hole 14 from borehole wall part be positioned at below rubbish body 6 to aeration zone of the first operating well 1, solution collection tube 8 in above-mentioned aeration zone in-situ solution monitoring device is installed in mounting hole 14, closes the gap between mounting hole 14 and solution collection tube 8;
F2, in aeration zone, be positioned at part intermittent water application below rubbish body 6;
The solution that F3, collection come from aeration zone, and the solution collected is detected.
Above-mentioned aeration zone original position ammonia nitrogen is adopted to strengthen nitration method, the part be positioned in aeration zone below rubbish body 6 supplies water, and make the aeration zone below rubbish body 6 be moisture state, further increase the reproduction speed of microorganism, be more conducive to the decomposition to ammonia nitrogen.Meanwhile, adopting aeration zone in-situ solution monitoring device to carry out in-situ monitoring to aeration zone solution, when not destroying unsaturated soil structure, the Ammonia Nitrification effect in aeration zone can be monitored more accurately.
Wherein, in step F 2, water supply frequency is weekly, and each output is 100 ~ 150L (wherein, each output is preferably 100L), and feed rate is 40 ~ 50L/h (wherein, feed rate is preferably 50L/h).
In addition, aeration zone original position ammonia nitrogen enhancing nitration method also comprises the steps:
The second operating well 2 and the 3rd operating well 9 are dug in F4, the position being close to rubbish body 6 in aeration zone, and make the second operating well 2 be located at the relative both sides of rubbish body 6 respectively with the 3rd operating well 9, at least one draft tube 4 is arranged to the 3rd operating well 9 direction from the second operating well 2, at least one exhaust tube 10 is arranged to the second operating well 2 direction from the 3rd operating well 9, draft tube 4 is communicated with air compressor 30, exhaust tube 10 is communicated with vacuum pump 29;
F5, utilize air compressor 30 and vacuum pump 29 in aeration zone, are positioned at part intermittent gas supply below rubbish body 6;
F6, many gas collection monitoring pipe 5 original positions extending to aeration zone the part be positioned at below rubbish body 6 from ground are utilized to monitor aeration zone gas.
Wherein, in step F 5, start air compressor 30 and vacuum pump 29, make between draft tube 4 and exhaust tube 10, to define an air flow field, microbial reproduction speed in this air flow field is increased, to improve the capacity of decomposition to the ammonia nitrogen that rubbish body 6 produces, thus the environmental pollution that the ammonia nitrogen that can reduce rubbish body 6 generation causes.Particularly, in step F 5, gas injection rate is 4 ~ 5m 3/ h, air compressor 30 and vacuum pump 29 run 2 ~ 3h simultaneously and then stop 4 ~ 5h.As one preferred embodiment, in step F 5, gas injection rate is preferably 4m 3/ h, air compressor 30 and vacuum pump 29 run 2h simultaneously and then stop 4h.For the O in aeration zone 2, NO 2, N 2o, CO 2detection, carry out twice gas collecting weekly by gas collection monitoring pipe 5, detect fast after spot sampling, detect difference position, the degree of depth aeration zone gas concentration change, judge ventilation effect and nitration reaction degree.Wherein it is noted that when water supply time overlaps with service life, be preferably air feed after first supplying water.
In addition, in step F 6, the gas collection that gas collection monitoring pipe 5 comprises many different lengths is in charge of 11, and the different degree of depth is inserted in the lower end that gas collection is in charge of 11, and can realize the hierarchical monitor to aeration zone gas in position.
As one preferred embodiment, aeration zone original position ammonia nitrogen enhancing nitration method also comprises the steps:
F7, the oxidation-reduction potential of the first determining instrument to aeration zone is utilized to monitor;
F8, the second determining instrument is utilized to monitor the water percentage of aeration zone, temperature and conductivity.
By the first determining instrument with the second determining instrument is per hour carries out an on-line monitoring, judge the nitration reaction degree in aeration zone.
Below by way of concrete experimental data, the effect that aeration zone original position ammonia nitrogen enhancing nitrification of the present invention and method produce is described.For the image data of one of them solution collection tube 8, as shown in Figure 6, under the In-sltu reinforcement through month nitrated (i.e. artificial-strengthening) condition, aeration zone ammonia nitrogen in solution is reduced to 49.3mg/L by initial concentration 92.3mg/L, there occurs certain conversion, concentration is on a declining curve generally.
In addition, as shown in Figure 7, for the image data of another solution collection tube 8, under the In-sltu reinforcement through month nitrated (i.e. artificial-strengthening) condition, ammonia nitrogen concentration in aeration zone solution progressively reduces in time, is reduced to 52mg/L by initial concentration 72.7mg/L, and nitrate nitrogen concentration progressively raises simultaneously, be reduced to 19.4mg/L by initial concentration 10.4mg/L, total nitrogen concentration is substantially constant.
Above-mentioned experimental data illustrates that ammonia nitrogen is under artificial-strengthening condition, and part is oxidized to nitrate.In addition, nitrite material is as reaction intermediate, and status pole is unstable, and therefore its relative concentration is lower, substantially lower than detection limit.This phenomenon illustrates that aeration zone original position ammonia nitrogen of the present invention strengthens nitrification and method wins initial success, substantially consistent with experimental design direction, namely under the condition improving soil moisture and oxygen level, promotes that ammonia nitrogen is rapidly converted into nitrate nitrogen.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited in the detail in above-mentioned embodiment; do not departing within the scope of technical conceive of the present invention; various change and modification can be carried out to technical scheme of the present invention; all equivalent technical schemes and simple variant also belong to category of the present invention, and its scope of patent protection should be defined by the claims.
It should be noted that in addition, each the concrete technical characteristic described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode.In order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible array mode.
In addition, also can carry out combination in any between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.

Claims (18)

1. aeration zone in-situ solution monitoring device, it is characterized in that, described aeration zone in-situ solution monitoring device comprises pump and is arranged at least one solution collection tube (8) in aeration zone, described solution collection tube (8) comprises the guide part (13) and collection portion (12) arranged vertically, this collection portion (12) has hollow cavity and the wall in described collection portion (12) is provided with through hole, and described pump is communicated with the hollow cavity of described collection portion (12).
2. aeration zone in-situ solution monitoring device according to claim 1, it is characterized in that, described solution collection tube (8) is arranged in aeration zone in the mode that described collection portion (12) is downward-sloping, and the angle between the axis of described solution collection tube (8) and surface level is 15 ° to 45 °.
3. aeration zone in-situ solution monitoring method, is characterized in that, described aeration zone in-situ solution monitoring method comprises the steps:
The first operating well (1) is dug in S1, the position being close to rubbish body (6) in aeration zone, and drills through mounting hole (14) from the part that the borehole wall of described first operating well (1) is positioned at rubbish body (6) below to aeration zone;
S2, the solution collection tube (8) in the aeration zone in-situ solution monitoring device described in claim 1 or 2 is installed in described mounting hole (14), closes the gap between described mounting hole (14) and described solution collection tube (8);
The solution that S3, collection come from aeration zone, and the described solution collected is detected.
4. aeration zone in-situ solution monitoring method according to claim 3, is characterized in that, in step s3, when detecting three nitrogen in aeration zone and total nitrogen, regularly carries out solution collection, and carries out Site Detection; When three nitrogen, total organic carbon and total nitrogen in aeration zone is detected, regularly carry out solution collection, and analyze in laboratory.
5. aeration zone original position ammonia nitrogen strengthens nitrification, it is characterized in that, described aeration zone original position ammonia nitrogen strengthens nitrification and comprises the aeration zone in-situ solution monitoring device described in the first operating well (1) and claim 1 or 2 be close to the rubbish body (6) in aeration zone, at least one water distributor (3) is provided with to described rubbish body (6) direction from the borehole wall of described first operating well (1), described water distributor (3) extends to described rubbish body (6) below, to be positioned at the part of rubbish body (6) below in moistening described aeration zone, described solution collection tube (8) is arranged in described aeration zone the part being positioned at rubbish body (6) below.
6. aeration zone original position ammonia nitrogen according to claim 5 strengthens nitrification, it is characterized in that, described aeration zone original position ammonia nitrogen strengthens nitrification and also comprises elevated tank and water trap, described elevated tank by described water trap respectively water distributor (3) described with at least one be communicated with.
7. aeration zone original position ammonia nitrogen according to claim 5 strengthens nitrification, it is characterized in that, described aeration zone original position ammonia nitrogen strengthens nitrification and also comprises the second operating well (2), 3rd operating well (9), air compressor (30) and vacuum pump (29), described second operating well (2) is located at described rubbish body (6) relative both sides respectively with described 3rd operating well (9), described second operating well (2) is provided with at least one draft tube (4) to described 3rd operating well (9) direction, described 3rd operating well (9) is provided with at least one exhaust tube (10) to described second operating well (2) direction, described draft tube (4) is communicated with described air compressor (30), described exhaust tube (10) is communicated with described vacuum pump (29).
8. aeration zone original position ammonia nitrogen according to claim 7 strengthens nitrification, it is characterized in that, described aeration zone original position ammonia nitrogen strengthens nitrification and also comprises many extend to described aeration zone the part being positioned at rubbish body (6) below gas collection monitoring pipe (5) from ground.
9. aeration zone original position ammonia nitrogen according to claim 8 strengthens nitrification, it is characterized in that, the gas collection that gas collection monitoring pipe (5) described in every root comprises many different lengths is in charge of (11), and the different degree of depth is inserted in the lower end that described gas collection is in charge of (11).
10. aeration zone original position ammonia nitrogen according to claim 9 strengthens nitrification, it is characterized in that, the upper end of gas collection monitoring pipe (5) described in every root is located at the multiple protection well stakes being positioned at ground all correspondingly, and described protection well stake comprises the lid that can open and close.
11. aeration zone original position ammonia nitrogens according to claim 10 strengthen nitrification, it is characterized in that, on the tube wall of described water distributor (3), on the tube wall of described draft tube (4), on the tube wall of described exhaust tube (10), on the tube wall of described gas collection monitoring pipe (5) and described gas collection be in charge of the middle hypomere of (11) tube wall on be equipped with the through hole that multiple diameter is 0.3 ~ 0.7mm.
12. aeration zone original position ammonia nitrogens according to claim 5 strengthen nitrification, it is characterized in that, described aeration zone original position ammonia nitrogen strengthens the second determining instrument that nitrification also comprises first determining instrument of monitoring the oxidation-reduction potential of aeration zone and monitors the water percentage of aeration zone, temperature and conductivity.
13. aeration zone original position ammonia nitrogens strengthen nitration method, it is characterized in that, described aeration zone original position ammonia nitrogen strengthens nitration method and comprises the steps:
The first operating well (1) is dug in F1, the position being close to rubbish body (6) in aeration zone, and drill through mounting hole (14) from the part that the borehole wall of described first operating well (1) is positioned at below rubbish body (6) to aeration zone, solution collection tube (8) in aeration zone in-situ solution monitoring device described in claim 1 or 2 is installed in described mounting hole (14), closes the gap between described mounting hole (14) and described solution collection tube (8);
F2, be positioned in aeration zone rubbish body (6) below part intermittent water application;
The solution that F3, collection come from aeration zone, and the described solution collected is detected.
14. aeration zone original position ammonia nitrogens according to claim 13 strengthen nitration method, it is characterized in that, in step F 2, water supply frequency is weekly, and each output is 100 ~ 150L, and feed rate is 40 ~ 50L/h.
15. aeration zone original position ammonia nitrogens according to claim 13 strengthen nitration method, it is characterized in that, described aeration zone original position ammonia nitrogen strengthens nitration method and also comprises the steps:
F4, the second operating well (2) and the 3rd operating well (9) are dug in the position being close to rubbish body (6) in aeration zone, and make described second operating well (2) be located at described rubbish body (6) relative both sides respectively with described 3rd operating well (9), at least one draft tube (4) is arranged to described 3rd operating well (9) direction from described second operating well (2), at least one exhaust tube (10) is arranged to described second operating well (2) direction from described 3rd operating well (9), described draft tube (4) is communicated with air compressor (30), described exhaust tube (10) is communicated with vacuum pump (29),
F5, utilize described air compressor (30) and described vacuum pump (29) be positioned in aeration zone rubbish body (6) below part intermittent gas supply;
F6, many are utilized to extend to described aeration zone from ground to be positioned at gas collection monitoring pipe (5) original positions of the part of rubbish body (6) below to monitor aeration zone gas.
16. aeration zone original position ammonia nitrogens according to claim 15 strengthen nitration method, and it is characterized in that, in step F 5, gas injection rate is 4 ~ 5m 3/ h, air compressor (30) and vacuum pump (29) run 2 ~ 3h simultaneously and then stop 4 ~ 5h.
17. aeration zone original position ammonia nitrogens according to claim 16 strengthen nitration method, it is characterized in that, when water supply time overlaps with service life, and air feed after first supplying water.
18. aeration zone original position ammonia nitrogens according to claim 13 strengthen nitration method, it is characterized in that, described aeration zone original position ammonia nitrogen strengthens nitration method and also comprises the steps:
F7, the oxidation-reduction potential of the first determining instrument to aeration zone is utilized to monitor;
F8, the second determining instrument is utilized to monitor the water percentage of aeration zone, temperature and conductivity.
CN201410635529.0A 2014-11-05 2014-11-05 Aeration zone in-situ solution monitoring device and ammonia nitrogen strengthen nitrification and method Active CN104360036B (en)

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