CN105698013B - A kind of method for determining river, underground water and infiltrating sewage conduct position and infiltration capacity - Google Patents
A kind of method for determining river, underground water and infiltrating sewage conduct position and infiltration capacity Download PDFInfo
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- CN105698013B CN105698013B CN201610108005.5A CN201610108005A CN105698013B CN 105698013 B CN105698013 B CN 105698013B CN 201610108005 A CN201610108005 A CN 201610108005A CN 105698013 B CN105698013 B CN 105698013B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
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Abstract
The invention discloses a kind of method for determining river, underground water and infiltrating sewage conduct position and infiltration capacity, comprise the following steps：S10. the monitoring section of trunk sewer is chosen；S20. river, underground water, monitored upstream point, monitored down point, the ammonia nitrogen concentration of main monitoring point are monitored；If S30. the ammonia nitrogen difference of adjacent monitoring point is not more than 5mg/L, show that river does not occur for section, underground water infiltrates for monitoring；If the more previous monitoring point drop-out value of the ammonia nitrogen concentration of sewage is more than 8mg/L at certain main monitoring point, the section generation river, the underground water that show to monitor in the main monitoring point infiltrate, and the discharge of sewage obtains infiltration capacity at measurement monitored upstream point, monitored down point；If there is linear decline, show that river occurs for each section for monitoring section, underground water infiltrates, the discharge of sewage at measurement monitored upstream point, monitored down point, calculate and obtain infiltration capacity, the present invention can quick and precisely determine river（Underground water）Position and the infiltration capacity of sewage pipe are infiltrated, input and cost are relatively low.
Description
Technical field
The present invention is used for water quality monitoring technical field, determines that river, underground water infiltrate sewage conduct more particularly to one kind
Position and the method for infiltration capacity.
Background technology
It is a kind of universal phenomenon that river (underground water), which infiltrates trunk sewer, and the processing water of sewage treatment plant can be caused to increase
Greatly, in design specification, generally consideration amount of infiltrating water is the 10%~20% of sewage quantity, but due to trunk sewer construction lack of standardization
And aging is run for a long time, the situation of piping failure occurs in trunk sewer, when these damaged sewage pipes are in underground
During the higher area of water level, underground water largely will enter to be seeped into sewage pipe；When these damaged sewage pipes are near creek
When, easily it can also be infiltrated by a large amount of creek water, these waters infiltrated are significantly larger than the 10%~20% of sewage quantity.
Flowmeter monitoring method is a kind of earliest using the monitoring method that trunk sewer is infiltrated in river (underground water), and most
Generally, one of simplest method.It can extrapolate river (by monitoring the flow of every section of branch sewer and main
Lower water) amount of infiltrating water, the method can be evaluated whether that underground water infiltrates total amount, and position is infiltrated in more difficult determination.
There is the presence of ammonia nitrogen in underground water, creek water and sanitary sewage.Generally, the ammonia nitrogen concentration in sewage
The significantly larger than ammonia nitrogen concentration of the natural water body such as underground water, creek water.Ammonia nitrogen passes through nitrobacteria (autotrophy in aerobic environment
Type microorganism) in the presence of nitration reaction occurs, nitrate is converted into, but the concentration of dirty oxygen in water is very low, even if having
Oxygen presence is partly dissolved, first can also be consumed by organic matter, this is due to the heterotroph microorganism of the decomposing organic matter in sewage
Quantity be significantly larger than nitrobacteria (autotrophic type microorganism), it can thus be assumed that sewage ammonia nitrogen in flow process in sewage pipe
Concentration is constant.The concentration of ammonia nitrogen can directly read concentration by portable ammonia nitrogen determination instrument in water.
The content of the invention
To solve the above problems, the present invention provides a kind of determination river, underground water infiltrates sewage conduct position and infiltration capacity
Method, the present invention using ammonia nitrogen as feature monitoring pollution thing, by monitoring outside sewage and sewage pipe in sewage pipe
River, underground water ammonia nitrogen concentration and sewage pipe in sewage flow, confirm because trunk sewer breakage is by river, underground
The position and the river in the region, underground water amount of infiltrating water that water infiltrates.
A kind of method for determining river, underground water and infiltrating sewage conduct position and infiltration capacity, comprises the following steps：
S10. the monitoring section of trunk sewer is chosen, monitored upstream point I is chosen in the upstream of the monitoring section, described
Monitored down point II is chosen in the downstream for monitoring section, if being chosen between the monitored upstream point I and monitored down point II of monitoring section
Main monitoring point A, B ... are done, the monitoring section is divided into multiple section I A, AB ... by main monitoring point；
S20. the monitoring section nearby river, the ammonia nitrogen concentration C of underground water are monitoredRiver, at monitored upstream point sewage ammonia
Nitrogen concentration COn, at monitored down point sewage ammonia nitrogen concentration CUnderAnd at each main monitoring point sewage ammonia nitrogen concentration CA、CB……；
If S30. the ammonia nitrogen concentration difference of adjacent monitoring point is not more than 5mg/L, show monitor section do not occur river,
Underground water infiltrates；If the more previous monitoring point drop-out value of the ammonia nitrogen concentration of sewage is more than 8mg/L at certain main monitoring point, show at this
River occurs for the section of main monitoring point monitoring, underground water infiltrates, and measures flow Q at monitored upstream pointOnAnd at monitored down point
Discharge of sewage QUnder, calculate and obtain infiltration capacity；If CA、CB... there is linear decline, then each section for showing to monitor section is sent out
Raw river, underground water infiltrate, and measure flow Q at monitored upstream pointOnAnd discharge of sewage Q at monitored down pointUnder, calculate
Milliosmolarity.
The improvement of technical solution of the present invention is further used as, in addition to
Step S40. when trunk sewer has it is some import monitoring sections branch sewer when, selected on every branch sewer
A branch pipe monitoring point 1,2 ... is taken, the main monitoring point corresponds to each branch sewer and chosen successively, and makes each branch sewer and dirt
The joint of water conduit tube is located at section I A, AB ... respectively；
Step S50. monitors the ammonia nitrogen concentration C of sewage at each branch pipe monitoring point1、C2……；
If the ammonia nitrogen concentration difference of step S60. adjacent monitoring points is not more than 5mg/L, show branch sewer, monitoring section
River does not occur, underground water infiltrates；If the more previous monitoring point drop-out value of the ammonia nitrogen concentration of sewage is more than at certain main monitoring point
8mg/L, then show the section that is monitored in the main monitoring point or import the section branch sewer river occurs, underground water infiltrates,
Measure flow Q at monitored upstream pointOnAnd discharge of sewage Q at monitored down pointUnder, calculate and obtain infiltration capacity；If CA、CB... go out
Existing linear decline, then show to monitor each section of section or every branch sewer for importing corresponding section occur river,
Lower water infiltrates, and measures flow Q at monitored upstream pointOnAnd discharge of sewage Q at monitored down pointUnder, calculate and obtain infiltration capacity.
The improvement of technical solution of the present invention is further used as, if nearby creek is tidal river to monitoring section, is needed point
It is not monitored in creek high water level and low water level.
It is further used as the improvement of technical solution of the present invention, monitored upstream point I, monitored upstream point II, main monitoring point, branch pipe
Monitoring point and river, the ammonia nitrogen concentration of underground water are monitored by portable ammonia nitrogen determination instrument and obtained simultaneously in dry days.
The improvement of technical solution of the present invention is further used as, after determining that river, underground water infiltrate section or branch sewer, is adopted
This section of sewage pipe is detected with CCTV technologies, and finally found that sewage pipe damage location.
Beneficial effects of the present invention：Conventional art is using flowmeter monitoring method, it is necessary to simultaneously in branch sewer, trunk sewer
Arrange that what multiple flowmeters just can determine that river (underground water) infiltrates position and amount of infiltrating water.The expensive price of flowmeter and stream
The installation of gauge needs substantial amounts of manpower and materials, causes the cost of monitoring higher.Using the present invention by monitoring sewage branch
The value of pipe, trunk sewer and river (underground water) ammonia nitrogen, can quickly determine river (underground water) infiltrates position.To true
It is incorporated into water percolating capacity, it is only necessary to respectively arrange 1 flowmeter in the upstream and downstream of trunk sewer, add up to 2.The present invention can be quick and precisely true
Determine position and infiltration capacity that river (underground water) infiltrates sewage pipe, input and cost are relatively low.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 is the inventive method principle schematic；
Fig. 2 is inventive embodiments schematic diagram.
Embodiment
In the case that sewage conduct does not have river (underground water) to infiltrate, in pipeline the concentration of sewage ammonia nitrogen 20~
30mg/L (the normal ammonia nitrogen concentration of sanitary sewage).River, the concentration of underground water ammonia nitrogen are in below 5mg/L, the concentration of sewage ammonia nitrogen
It is more than 5 times of river (underground water) ammonia nitrogen concentration.Done by monitoring branch sewer, trunk sewer and sewage simultaneously in dry days
The ammonia nitrogen concentration of nearest river is managed, determines that river (underground water) infiltrates position；, can by monitoring the discharge of sewage of end sewage pipe
To extrapolate the amount of infiltrating water of river (underground water).
When it needs to be determined that sewage conduct only have trunk sewer do not have branch sewer when, the present invention comprises the following steps：
S10. the monitoring section of trunk sewer 5 is chosen, monitored upstream point I is chosen in the upstream of the monitoring section, in institute
Monitored down point II is chosen in the downstream for stating monitoring section, is chosen between the monitored upstream point I and monitored down point II of monitoring section
Some main monitoring point A, B ..., the monitoring section are divided into multiple section I A, AB ... by main monitoring point；
S20. the monitoring section nearby river, the ammonia nitrogen concentration C of underground water are monitoredRiver, at monitored upstream point sewage ammonia
Nitrogen concentration COnThe ammonia nitrogen concentration C of sewage at (the background ammonia nitrogen concentration for determining this regional sewage pipeline), monitored down pointUnderAnd each master
The ammonia nitrogen concentration C of sewage at monitoring pointA、CB……；
If S30. the ammonia nitrogen concentration difference of adjacent monitoring point is not more than 5mg/L, show monitor section do not occur river,
Underground water infiltrates；If the more previous monitoring point drop-out value of the ammonia nitrogen concentration of sewage is more than 8mg/L at certain main monitoring point, show at this
River occurs for the section of main monitoring point monitoring, underground water infiltrates, and measures flow Q at monitored upstream pointOnAnd at monitored down point
Discharge of sewage QUnder, calculate and obtain infiltration capacity；If CA、CB... there is linear decline, then each section for showing to monitor section is sent out
Raw river, underground water infiltrate, and measure flow Q at monitored upstream pointOnAnd discharge of sewage Q at monitored down pointUnder, calculate
Milliosmolarity.
When it needs to be determined that sewage conduct have trunk sewer 5 and it is some import monitoring section branch sewer 2 when, reference
Fig. 1, trunk sewer 5 are laid along creek 6, and creek water enters to be seeped into trunk sewer that (infiltrating region may have by the pipeline of breakage
At one or a few places), ultimately result in sewage treatment plant processing water increase, the present invention on the basis of above-mentioned steps also include with
Lower step：
Step S40. chooses a branch pipe monitoring point 1,2,3,4 on every branch sewer 6, and the main monitoring point corresponds to each
Branch sewer 6 is chosen successively, and each branch sewer 6 and the joint of trunk sewer 5 is located at section I A, AB, BC, CD respectively；
Step S50. monitors the ammonia nitrogen concentration C of sewage at each branch pipe monitoring point1、C2、C3、C4；
If the ammonia nitrogen concentration size of step S60. adjacent monitoring points is almost unchanged (difference is not more than 5mg/L), show dirt
Water branch pipe 6, river does not occur for section, underground water infiltrates for monitoring；If the more previous prison of ammonia nitrogen concentration of sewage at certain main monitoring point
Measuring point drop-out value is more than 8mg/L, then shows in the section of the main monitoring point monitoring or import the branch sewer generation river of the section
Water, underground water infiltrate, and this is due to that the ammonia nitrogen concentration of sewage is higher than the concentration of river (underground water), is entered when there is river (underground water)
Fashionable, ammonia nitrogen concentration can decline, and by diluting the calculating of formula, can calculate the water ratio of sewage and river (underground water).
Such as：CDFor 15mg/L, its CRiverFor 5mg/L, COnFor 25mg/L, then the position that river (underground water) infiltrates is located at CD sections, dirty
The ratio of water and river (underground water) water is 1:1, infiltration rate 50%.Measure flow Q at monitored upstream pointOnAnd downstream
Discharge of sewage Q at monitoring pointUnder, calculate and obtain infiltration capacity；If CA、CB、CC、CDThere is linear decline, then show to monitor each of section
River occurs for the branch sewer of individual section or the corresponding section of every remittance, underground water infiltrates, and measures flow at monitored upstream point
QOnAnd discharge of sewage Q at monitored down pointUnder, calculate and obtain infiltration capacity.
After determining that river, underground water infiltrate section or branch sewer, this section of sewage pipe is detected using CCTV technologies,
And it finally found that sewage pipe damage location.
If monitoring section, nearby creek is tidal river, need to be supervised in creek high water level and low water level respectively
Survey.
Monitored upstream point I, monitored upstream point II, main monitoring point, branch pipe monitoring point and river, the ammonia nitrogen concentration of underground water
Monitored and obtained by portable ammonia nitrogen determination instrument simultaneously in dry days.
River, which infiltrates position, to be determined using the method to the dirty pipe that cuts of Guangzhou creek, as shown in Fig. 2 being divided into dirty pipe is cut
3 sections, every section takes monitoring point of the inspection shaft as ammonia nitrogen every 100m or so, and monitoring section 1# has 8 monitoring points, monitoring section 2# and 3#
Respectively there are 10 monitoring points, altogether 28 monitoring points, and measure the ammonia nitrogen value of creek near monitoring point.Monitoring result shows, creek
Ammonia nitrogen concentration is 1.36mg/L, and the ammonia nitrogen background value of the regional sewage is 26mg/L, and the ammonia nitrogen value of each monitoring points of monitoring section 1# exists
24~27mg/L, the results showed that this section of sewage pipe river (underground water) does not occur and infiltrate phenomenon.Monitoring section 2#, monitoring section 3# portions
The ammonia nitrogen value of point monitoring point shows that the region river (underground water) occurs and infiltrates phenomenon, infiltrates rate of stream flow for 17~19mg/L
About 2.2 ten thousand ton per days.This section of sewage pipe is detected using CCTV technologies, as a result shows that disrepair phenomenon occurs in this section of sewage pipe.
Certainly, the invention is not limited to above-mentioned embodiment, and those skilled in the art are without prejudice to originally
Equivalent variations or replacement can be also made on the premise of spirit, these equivalent modifications or replacement are all contained in the application right
It is required that in limited range.
Claims (5)
- A kind of 1. method for determining river, underground water and infiltrating sewage conduct position and infiltration capacity, it is characterised in that including following step Suddenly：S10. the monitoring section of trunk sewer is chosen, monitored upstream point I is chosen in the upstream of the monitoring section, in the monitoring Monitored down point II is chosen in the downstream of section, and some masters are chosen between the monitored upstream point I and monitored down point II of monitoring section Monitoring point A, B ..., the monitoring section are divided into multiple section I A, AB ... by main monitoring point；S20. the monitoring section nearby river, the ammonia nitrogen concentration C of underground water are monitoredRiver, the ammonia nitrogen of sewage is dense at monitored upstream point Spend COn, at monitored down point sewage ammonia nitrogen concentration CUnderAnd at each main monitoring point sewage ammonia nitrogen concentration CA、CB……；If S30. the ammonia nitrogen concentration difference of adjacent monitoring point is not more than 5mg/L, show that monitoring section does not occur river, underground Water infiltrates；If the more previous monitoring point drop-out value of the ammonia nitrogen concentration of sewage is more than 8mg/L at certain main monitoring point, show in the main prison River occurs for the section of measuring point monitoring, underground water infiltrates, and measures flow Q at monitored upstream pointOnAnd sewage at monitored down point Flow QUnder, calculate and obtain infiltration capacity；If CA、CB... there is linear decline, then river occurs for each section for showing to monitor section Water, underground water infiltrate, and measure flow Q at monitored upstream pointOnAnd discharge of sewage Q at monitored down pointUnder, calculate and infiltrated Amount.
- 2. the method according to claim 1 for determining river, underground water and infiltrating sewage conduct position and infiltration capacity, its feature It is：Also includeStep S40. when trunk sewer has it is some import monitoring sections branch sewer when, choose one on every branch sewer Individual branch pipe monitoring point 1,2 ..., the main monitoring point corresponds to each branch sewer and chosen successively, and each branch sewer is done with sewage The joint of pipe is located at section I A, AB ... respectively；Step S50. monitors the ammonia nitrogen concentration C of sewage at each branch pipe monitoring point1、C2……；If the ammonia nitrogen concentration difference of step S60. adjacent monitoring points is not more than 5mg/L, show that branch sewer, monitoring section do not have Generation river, underground water infiltrate；If the more previous monitoring point drop-out value of the ammonia nitrogen concentration of sewage is more than 8mg/L at certain main monitoring point, Then show the section that is monitored in the main monitoring point or import the section branch sewer river occurs, underground water infiltrates, in measurement Swim flow Q at monitoring pointOnAnd discharge of sewage Q at monitored down pointUnder, calculate and obtain infiltration capacity；If CA、CB... occur linear Decline, then show to monitor each section of section or river occurs for every branch sewer for importing corresponding section, underground water enters Ooze, measure flow Q at monitored upstream pointOnAnd discharge of sewage Q at monitored down pointUnder, calculate and obtain infiltration capacity.
- 3. the method according to claim 1 for determining river, underground water and infiltrating sewage conduct position and infiltration capacity, its feature It is：If monitoring section, nearby creek is tidal river, need to be monitored in creek high water level and low water level respectively.
- 4. the method according to claim 2 for determining river, underground water and infiltrating sewage conduct position and infiltration capacity, its feature It is：Monitored upstream point I, monitored upstream point II, main monitoring point, branch pipe monitoring point and river, the ammonia nitrogen concentration of underground water are equal Monitored and obtained by portable ammonia nitrogen determination instrument simultaneously in dry days.
- 5. the method according to claim 2 for determining river, underground water and infiltrating sewage conduct position and infiltration capacity, its feature It is：After determining that river, underground water infiltrate section or branch sewer, this section of sewage pipe is detected using CCTV technologies, and It finally found that sewage pipe damage location.
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| CN108871463A (en) * | 2018-05-01 | 2018-11-23 | 天津格瑞安环保科技有限公司 | Sewage network underground water infiltrates analysis method |
| CN108755898B (en) * | 2018-05-30 | 2020-07-24 | 上海水顿智能科技有限公司 | Method for analyzing underground water infiltration and pipeline sewage infiltration distribution of underground pipe network |
| CN111120877B (en) * | 2019-12-12 | 2020-11-27 | 同济大学 | Drainage pipe network leakage monitoring equipment based on distributed optical fiber temperature measurement |
| CN114202441B (en) * | 2021-12-16 | 2023-03-24 | 天津大学 | Method for determining underground water infiltration amount in sewage pipe network in monitoring area |
| CN114624407B (en) * | 2022-02-24 | 2024-05-10 | 南宁市勘测设计院集团有限公司 | Method for measuring and calculating external water quantity of district sewage system based on typical land parcels |
| CN116126963A (en) * | 2022-12-30 | 2023-05-16 | 哈尔滨航天恒星数据系统科技有限公司 | Inflow infiltration diagnosis method for nonlinear multi-source heterogeneous drainage model |
| CN116046703A (en) * | 2023-03-28 | 2023-05-02 | 中国市政工程华北设计研究总院有限公司 | Method for rapidly diagnosing inflow and infiltration of external water based on resident life pollution discharge law |
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