CN105954486A - Device and method for simulating migration and transformation rules of pollutants under different actions - Google Patents
Device and method for simulating migration and transformation rules of pollutants under different actions Download PDFInfo
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- CN105954486A CN105954486A CN201610304900.4A CN201610304900A CN105954486A CN 105954486 A CN105954486 A CN 105954486A CN 201610304900 A CN201610304900 A CN 201610304900A CN 105954486 A CN105954486 A CN 105954486A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/1893—Water using flow cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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Abstract
The invention discloses a device and a method for simulating migration and transformation rules of pollutants in rural rivers and channels and relates to the field of research on migration and transformation rules of pollutants in processes of delivery of effluent of rural area domestic sewage treatment facilities to natural water bodies. The device comprises two parts, namely, an organic glass cover and a double-layer PVC (polyvinyl chloride) tank, wherein dilution, evaporation, soil adsorption, microbial degradation and plant absorption actions of the natural rivers are simulated through seven side ditches in the double-layer PVC tank, and the migration and transformation rules of the pollutants under different actions and effects of the pollutants on underground water in migration processes are simulated in a single-factor or multi-factor-combined manner. The device and the method are simple to operate and large in application range, water is prepared from common drugs of laboratories or effluent of facilities and river water are directly used, and effective technical methods and means can be provided for research on the migration and transformation rules of the pollutants in the effluent of rural sewage treatment facilities in the rivers and the channels.
Description
Technical field
The present invention relates to rural domestic sewage treatment facility water outlet at the transportion and transformation of pollutant in natural water course of conveying
Research field.
Background technology
In recent years, countryside sewage treating is operated in China some areas and is quickly propelled, but China not yet formulates one for agriculture
The pollutant discharging standards of village's waste water control, the discharge standard problem about rural decentralized wastewater treatment facility is constantly in relatively
For fuzzy state.In order to solve the problems referred to above, need to carry out the research around facility water outlet course of conveying, find out facility water outlet
At typical environment behavior and the transportion and transformation of pollutant of course of conveying, quality standard of water environment is utilized to be finally inversed by pollutant row
Put standard.Facility water outlet typically first flows through irrigation canals and ditches, natural river course etc. in village before entering receiving water body.Due to rural sewage treatment
Facility has miniaturization feature, and less water flow causes facility water outlet to have the longest hydraulic detention time at course of conveying.
Under this time scale, evaporation, adsorption by soil, microbial degradation and water-bed and adjacent bank plant absorption effect all can be to facilities
The water quality and quantity of water outlet produces the impact can not ignore.But the most do not carry out at for the decentralized wastewater of rural area at present
The research of the water outlet course of conveying of reason facility, recognizes unclear to the transportion and transformation of pollutant.
Summary of the invention
Recognize unclear problem and the actual state of rural area for facility water outlet course of conveying, the present invention propose a kind of simple,
The device and method of contaminant transportation transformation rule under easy-operating simulation not same-action.
Described device and method can be simulated facility water outlet and be flowed through the contaminant transportation transformation rule in nature river course.Main analog
Facility water outlet dilutes in natural river course, evaporates, adsorption by soil, microbial degradation and plant absorption effect, cause
The total amount of pollutant and the change of concentration.It addition, this device can be with the impact on subsoil water in transition process of simulating pollution thing.
Due to simulation dimensional problem, intend using circulating water flow mode.The present invention is innovated in terms of apparatus structure.
Described analog is made up of plexiglass tent, double-deck PVC groove and filled media.Described plexiglass tent uses long
Cube, top can be installed light source, be simulated nature light；Above it is arranged to plug-type, facilitates built-in function and ventilation.Institute
The double-deck PVC groove stated uses cuboid, two-layer PVC board spacing to be preferably 20～30mm equally, for water-bath, keeps cell body
Temperature constant is subsurface temperature, water inlet, the mode of top water outlet bottom water-bath employing.Plexiglass tent just may be inserted into bilayer
Under water 20～30mm are immersed between PVC board and bottom it.It is provided with 6 dividing plates, in order to stop adjacent two inside double-deck PVC groove
Gutter, simulation loop current.Double-deck PVC trench bottom communicates, and is not separated by dividing plate, passes through for subsoil water, the water inlet of subsoil water
Three water distribution uniformity modes are all used with water outlet.Middle part and bottom before double-deck PVC groove are respectively provided with row's sample tap,
Each sample tap connects a probe tube, and probe tube is evenly arranged the circular hole of a diameter of 0.50cm, and takes with two-layer nonwoven parcel
Sample pipe, enables water to arrive sample tap through non-woven fabrics through probe tube.Filled media includes upper and lower two-layer: upper strata is clay,
Filling thickness is 70cm, simulates aeration zone；Lower floor is medium sand, and filling thickness is 10cm, and particle diameter is 0.25～0.50mm, mould
Intend water-bearing layer.Clay upper strata excavation gutter, gutter section is trapezoidal, upper end 15cm, lower end 9cm, degree of depth 12cm, inclination angle
104 °, prevent gutter from caving in non-woven fabrics is fixing, can be with microbe inoculation inside gutter, small-sized float grass, mould can be planted in bottom
Intend nature river course.Facility water outlet uses moveable water feed apparatus to enter gutter, and water feed apparatus pvc pipe uses nested mode group
Dress, water inlet pipe can all around move.
Analog uses following flow process to operate:
(1) single factor test conceptual phase, by regulating the water intake velocity of facility water outlet, controls extension rate；By to gutter whether
Access bed mud in river, control microbiological deterioration；By whether planting pasture and water bottom opposite side ditch, control plant absorption effect.
Sample along journey at gutter, measure pollutant levels, filter out and contaminant transportation is converted the key factor made a significant impact.By
Evaporation and adsorption by soil effect in gutter exist always, and this device can not carry out single factor experiment to above two effect and grind
Study carefully, the COD under dilution, microbial degradation and plant absorption these three single factor test effect, ammonia nitrogen, total nitrogen, total may only be studied
The transportion and transformation of the pollutant such as phosphorus.
(2) the multifactoral study stage, control two factors or multiple factor, study the pollutant under multifactor various combination mode
Transportion and transformation, filters out and contaminant transportation is converted the key compositional mode made a significant impact.
(3) influence on groundwater research, in above-mentioned two step, periodically to underground water sampling, studies contaminant transportation process pair
The short-term of subsoil water and long-term accumulated impact.
The invention have the advantage that the various effects may being subject in course of conveying by simulation facility water outlet, study at Dan Yin
The transportion and transformation of different pollutant under plain or multifactor effect；By laboratory common drug water distribution or directly take facility and go out
Water and river, can maintain the long-acting operation of analog.The water intake mode of facility water outlet is flexible, can above gutter arbitrarily
Place's water inlet；Sampling is convenient, can sample everywhere along gutter, simple to operate.Can be dirty in research rural sewage treatment facility water outlet
Dye thing transportion and transformation in river course, irrigation canals and ditches provides effective technical method and means.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of analog, wherein: 1 plexiglass tent, 2 light sources, 3 gutters, 4 sample taps, 5
Water-bath, 6 cloth tank and water legs, 7 water feed apparatus, 8 gutter water inlet and outlets, 9 water-bath water inlet and outlets.
Accompanying drawing 2 is the top view of water feed apparatus in accompanying drawing 1.
Detailed description of the invention
Embodiment uses analog shown in the drawings, and wherein, the simulation in natural river course is real by the gutter of 7 sections of 90cm length
Existing, gutter is numbered, is from left to right followed successively by A, B, C, D, E, F, G.Clay used takes from top layer, farmland
Soil (below ground 0～10cm), crosses the sieve of 0.5cm, and adjacent two sections of gutters use the mode of semicircle to be attached, reduce water
Flow resistance.In order to prevent gutter side from caving in, it is fixed by single-layer nonwoven.The river course river of simulation and facility water outlet are by reality
Test room glucose, ammonium chloride, sodium nitrate and potassium dihydrogen phosphate configuration, select surface water V class water body limit value simulation quality of river water,
I.e. COD40mg/L, ammonia nitrogen 2.0mg/L, total nitrogen 2.0mg/L, total phosphorus 0.4mg, select urban wastewater treatment firm one-level B mark
Standard value simulation the facility effluent quality, i.e. COD60mg/L of quasi-regulation, ammonia nitrogen 8.0mg/L, total nitrogen 20.0mg/L, total phosphorus 1
Mg, wherein total nitrogen includes ammonia nitrogen and nitrate nitrogen.Planting 20 strain pasture and water in gutter B kind, gutter D inoculates 500ml bed mud in river,
Gutter F not only plants 20 strain pasture and water but also inoculates 500ml bed mud in river, other gutters (gutter A, gutter C, gutter E and gutter
G) as blank, neither plant pasture and water, the most do not inoculate bed mud in river.The water inlet of water-bath is connected tap water, maintains
Cell body temperature is in the range of 10 DEG C-15 DEG C.Equally the intake chamber of double-deck PVC trench bottom is connected tap water, control current from the beginning
Speed, flows for simulated groundwater.After system constructing completes, in gutter, inject river water distribution, after the fullest water, make river
The depth of water maintains about 10cm, and constantly intakes and water outlet with certain water velocity.Set by the extension rate regulation set
Execute the flow velocity of water outlet water distribution, use the mode of continuum micromeehanics or intermittent water inflow to enter gutter.Device runs two months continuously, every
Within 2 days, sample at each gutter and subsoil water sample tap, measure COD, ammonia nitrogen, nitrate nitrogen, total nitrogen, the concentration of total phosphorus, point
Analysis transportion and transformation of pollutant under not same-action.
The Multifactor Combination mode that 7 sections of gutters are simulated: gutter A: evaporation+adsorption by soil, gutter B: evaporation+adsorption by soil+
Plant absorption, gutter C: evaporation+adsorption by soil, gutter D: evaporation+adsorption by soil+microbial degradation, gutter E: evaporation+
Adsorption by soil, gutter F: evaporation+adsorption by soil+plant absorption+microbial degradation, gutter G: evaporation+adsorption by soil.
Claims (3)
1. simulate the device and method of contaminant transportation transformation rule under not same-action for one kind, it is characterised in that: device by plexiglass tent,
Double-deck PVC groove and filled media are constituted, and simulation rural sewage treatment facility goes out water pollutant migration in river course, irrigation canals and ditches and turns
Law, facility water outlet uses moveable water feed apparatus to enter gutter.
Analog the most according to claim 1 and method, it is characterised in that: filled media includes upper and lower two-layer: upper strata is viscous
Soil, filling thickness is 70cm, simulates aeration zone；Lower floor is medium sand, and filling thickness is 10cm, and particle diameter is 0.25～0.50mm,
Simulation water-bearing layer.
Analog the most according to claim 1 and method, it is characterised in that: movably water feed apparatus pvc pipe uses
Nested mode assembles, and water inlet pipe can all around move, can any place water inlet above gutter；Facility water outlet can use reality
Test room common drug water distribution or directly take the water outlet of sewage treatment facility.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610304900.4A CN105954486A (en) | 2016-05-10 | 2016-05-10 | Device and method for simulating migration and transformation rules of pollutants under different actions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610304900.4A CN105954486A (en) | 2016-05-10 | 2016-05-10 | Device and method for simulating migration and transformation rules of pollutants under different actions |
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| Publication Number | Publication Date |
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| CN105954486A true CN105954486A (en) | 2016-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610304900.4A Pending CN105954486A (en) | 2016-05-10 | 2016-05-10 | Device and method for simulating migration and transformation rules of pollutants under different actions |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110161211A (en) * | 2019-05-10 | 2019-08-23 | 中国水产科学研究院东海水产研究所 | Simulate the experimental rig that secondary saline-alkali water generates process |
| CN110907619A (en) * | 2019-11-06 | 2020-03-24 | 生态环境部华南环境科学研究所 | Box type simulation experiment device for pollutant migration and conversion and oxygen balance mechanism |
| CN113588891A (en) * | 2021-09-26 | 2021-11-02 | 中国科学院、水利部成都山地灾害与环境研究所 | Pollutant migration device under unsaturated condition |
-
2016
- 2016-05-10 CN CN201610304900.4A patent/CN105954486A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110161211A (en) * | 2019-05-10 | 2019-08-23 | 中国水产科学研究院东海水产研究所 | Simulate the experimental rig that secondary saline-alkali water generates process |
| CN110161211B (en) * | 2019-05-10 | 2022-05-17 | 中国水产科学研究院东海水产研究所 | Test device for simulating secondary saline-alkali water generation process |
| CN110907619A (en) * | 2019-11-06 | 2020-03-24 | 生态环境部华南环境科学研究所 | Box type simulation experiment device for pollutant migration and conversion and oxygen balance mechanism |
| CN113588891A (en) * | 2021-09-26 | 2021-11-02 | 中国科学院、水利部成都山地灾害与环境研究所 | Pollutant migration device under unsaturated condition |
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Application publication date: 20160921 |