CN102937637A - Water body experiment apparatus and method - Google Patents
Water body experiment apparatus and method Download PDFInfo
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- CN102937637A CN102937637A CN201210404633XA CN201210404633A CN102937637A CN 102937637 A CN102937637 A CN 102937637A CN 201210404633X A CN201210404633X A CN 201210404633XA CN 201210404633 A CN201210404633 A CN 201210404633A CN 102937637 A CN102937637 A CN 102937637A
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Abstract
The invention relates to a water body experiment apparatus and a water body experiment method. The apparatus comprises a sediment release unit, a culture unit, a control unit, a water body controlling system, and a water quality monitoring system. The sediment release unit, the culture unit, and the control unit are sequentially arranged adjacently. Each two adjacent units are connected with a baffle, such that an experiment box body with the three units communicating with each other is formed. The water body controlling system is used for regulating physical and chemical indicators of water body in the experiment apparatus. The water quality monitoring system is used for detecting the physical and chemical indicator values of water body, sediment, plankton and/or submerged aquatic plants in the experiment apparatus. According to the invention, sediment sampling, sediment pollutant releasing, and algae and submerged plant growing are effectively combined. With the apparatus, sediment release effect of different water environments can be simulated, and influences of different ecological projects (environmental-protection dredging projects and submerged aquatic plant restoration projects) upon water body eutrophication and water body pollution can be quantitatively studied.
Description
Technical field
The present invention relates to experimental provision and the method in a kind of environmental protection and the field of improvement, particularly relate to a kind of water body experimental provision and method of studying water-bed mud-hydrobiont system biological chemical process.
Background technology
Bed mud is one of three large elements of water body in lake, is important step and the interface of the geochemical cycle of Lakes in Nutrition material.The geochemical behavior of water-bed mud interface nutriment is to lake, and especially the quality of water environment of shallow lake and the ecosystem have very important impact.Research shows, heavy metal, organism, nitrogen and phosphorus pollutants etc. are when external condition (as disturbance of dissolved oxygen DO, pH value, oxidation-reduction potential, temperature, biology and water body etc.) is suitable, polluter in bed mud (as nitrogen, phosphorus, heavy metal, organism etc.) may again be discharged in water body and cause secondary pollution, and aquatic ecosystem is formed to long-term the threat.
For a long time, Chinese scholars has been carried out many research to Lake Water-bed mud interface, is summed up, and mainly concentrates on: the occurrence patterns of interfacial structure and feature, nutrient, absorption-desorption and the aspects such as dynamics and Environmental Factors thereof.And these researchs are based on water-this basis of two phase structures, bed mud interface and carry out, biological (especially algae and submerged plant) to be considered less in this two alternate existence and effect, may there be deviation in the conclusion drawn.Submerged plant growth process and breakout of water bloom process are also followed water-bed mud interface microbe colony structure and quantity simultaneously, the acute variation of interface dissolved oxygen DO (DO), pH value, Dissolved Organic Matter (DOM) (DOC), the variation of these conditions will directly cause nutritive salt in water environment, heavy metal and organic contaminant form, bioavailability, toxicity and biogeochemical cycle and home to return to change.
Mostly current existing bed mud indoor simulation device is take that water-bed mud interface two-phase structural research is as main, and these devices have played good reference function to release action and the influence factor thereof of research bed mud.But these devices all can not the Simulated Water grey hair be given birth to the Dynamic Coupling relation of process, submerged plant growth process and sediment contamination release; Can not study in batches the impact of ecological engineering (environmental dredging engineering, submerged plant recover engineering) on body eutrophication.Therefore still lack feature richness, in real time, fast, for studying biology (submerged plant, algae), with bed mud, discharge interactional device.
Because the defect that above-mentioned existing water body experimental provision exists, the inventor studies abundant for many years practical experience and professional knowledge based on being engaged in this type of, positive research and innovation in addition, to founding a kind of water body experimental provision of new structure, can improve general existing water body experimental provision and method, make it have more practicality.Through constantly research, design, and, after repeatedly studying sample and improving, finally create the present invention who has practical value.
Summary of the invention
Fundamental purpose of the present invention is, a kind of new water body experimental provision and method are provided, and technical matters to be solved is to simulate Sediments release and planktonic algae, submerged plant coupled relation, thereby more is suitable for practicality.
The object of the invention to solve the technical problems realizes by the following technical solutions.A kind of water body experimental provision proposed according to the present invention, it comprises: bed mud releasing unit, cultivation unit, control module, water body control system and water quality monitoring system; Described bed mud releasing unit, to cultivate unit adjacent successively with control module, connects with baffle plate between adjacent unit in twos, thereby form the test casing that three unit are interconnected; Described water body control system, for regulating the physical and chemical index of experimental provision water body; Described water quality detection system, for detection of the physical and chemical index numerical value of water body, bed mud, planktonic organism and/or hydrophyte in experimental provision.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Further, aforesaid water body experimental provision, wherein said water body control system comprises one or more in pH value control system, dissolved oxygen DO control system, water circulation system, illuminator and temperature control system; Described pH value control system is by pH electrode, pH controller, sour storage tank, alkali storage tank, sour volume pump, alkali volume pump and add the soda acid mouth and form, pH electrode and add the soda acid mouth and be arranged in control module; Described dissolved oxygen DO control system is comprised of dissolved oxygen electrode, dissolved oxygen control instrument, welding bottle, nitrogen cylinder, flow controller and sudden and violent tracheae, dissolved oxygen electrode is detected for the dissolved oxygen value to water body, and measured value is fed back to dissolved oxygen control instrument, sudden and violent tracheae is for providing oxygen or nitrogen; Water circulation system is comprised of pump and water pipe, for flowing of water body in the circulation experiment device; Illuminator is comprised of a plurality of light sources, for the illumination of multiple intensity of illumination is provided to experimental provision; Water temperature control system is comprised of temperature controller, well heater and temp probe, the temperature be used in the regulating and controlling experimental provision.
Further, aforesaid water body experimental provision, wherein said baffle plate is combined by drain bar and phytoplankton net; The bottom of cultivating the baffle plate between unit and bed mud releasing unit is plankton net, and top is drain bar; The top of cultivating the baffle plate between unit and control module is plankton net, and bottom is drain bar, and described drain bar is poly (methyl methacrylate) plate or PVC plate or glass plate.
Further, aforesaid water body experimental provision, wherein said bed mud releasing unit arranges a plurality of bases with bayonet socket and sampling pipe, by described bayonet socket, sampling pipe can be connected and stably be fixed on base.
Further, aforesaid water body experimental provision, wherein said sampling pipe is column, is provided with at a certain distance two symmetrical electrode holes from bottom, the electrode of its pore size application monitoring system is complementary.
Further, aforesaid water body experimental provision, wherein said water quality monitoring system consists of electrode probe, Water Test Kits and data processor, and electrode probe is one or more, is arranged at the bed mud releasing unit and/or cultivates in unit.
Further, aforesaid water body experimental provision, it also comprises the stirrer be arranged in control module, and one can or be cultivated the movably siphon sampling pipe that unit gathers water sample from the bed mud releasing unit.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.The present invention also proposes a kind of water body research experiment method, adopts above-mentioned water body experimental provision, and the method comprises the following steps: gather bed mud with sampling pipe from studied lake or river, and retain overlying water on bed mud; Sampling pipe after the collection bed mud is arranged in the bed mud releasing unit; By the overlying water in studied lake or river or according to testing in the solution injection experiments device that need to configure; Make the height of the height of liquid level in whole device over the cylindrical sample collection tube; The water temperature of regulating in experimental provision is in the temperature range of setting, regulates the pH value of water body and/or the content of dissolved oxygen DO, the regulating illumination time and intensity; Required algae kind or the kind planting submerged plant of inoculation experiments in cultivating unit; By water quality monitoring system, the water body in mensuration algae or submerged plant growth process and the physical and chemical index of gap water body; Can get the bed mud of cylindrical sample collection tube, research algal grown or the submerged plant growth process Changing Pattern to total amount and the form thereof of pollutant in bed mud simultaneously.
Further, aforesaid water body research experiment method, if only carry out the research of Sediments release and planktonic algae, submerged plant growth coupled relation, without the pH value of regulating water body and the content of dissolved oxygen DO.Water body in experimental provision in experimentation in circulating state.
By technique scheme, water body experimental provision of the present invention and method at least have following advantages:
The characteristics of apparatus of the present invention are to organically combine by the release by bed mud sample collection, pollutants in sediments and algae, submerged plant growth, be convenient to simulate different water environment conditions and change the release action to bed mud, can reduce artificial disturbance, keep the original traits of overlying water and bed mud simultaneously.By bed mud releasing unit and algae culture unit associations, in can the simulated water bloom breakout process water environment factors process with meet the Dynamic Coupling relation of polluting pollutant Transport And Transformation process, the response mechanism of combined pollutant Transport And Transformation in explaination eutrophication Water Under environment.By adjusting the physical agents such as pH, dissolved oxygen DO, temperature, illumination, can simulate the impact of the variation of water body physical and chemical factor on sediment pollution release.By bed mud releasing unit and submerged culture unit associations, can simulate the Dynamic Coupling relation of change procedure and the combined pollutant Transport And Transformation of Water Factors in the submerged plant growth process, the explaination submerged plant is on the purification mechanism of water body and the impact of ecological factor.Submerged plant planting and Vertical Sampling duct ligation can be closed, the restoration of the ecosystem of research variety classes submerged plant is on the form of pollutant in water body-bed mud and the impact of release, for the selection of restoration of the ecosystem submerged plant provides scientific basis.Can use the cylindrical sample collection tube to gather the bed mud of different levels or gather the bed mud before and after dredging, studying in batches the impact of different environment-friendly dredging depths on overlying water, thereby providing technical support for polluted bed mud environmental protection degree of deepening by dredging definite.In sum, this device can be simulated preferably pollutant in bed mud and be discharged the Dynamic Coupling relation with wawter bloom generating process, submerged plant growth process, a plurality of processes that simultaneously can the migration in water-bed mud-biosystem, conversion by pollutant are attached in a device, the multifunction of implement device; The small volume of this device, can arbitrarily be placed in each corner of experimental site, is convenient to carry out various simulated experiments, and this device adopts modular design in addition, and it is convenient that parts are changed in mounting or dismounting, can constantly operate for a long time long service life.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of instructions, below with preferred embodiment of the present invention and coordinate accompanying drawing to be described in detail as follows.
The accompanying drawing explanation
Fig. 1 is the water body experimental provision structural representation of the embodiment of the present invention.
Fig. 2 is column collection tube structural representation.
Embodiment
Reach for further setting forth the present invention technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, water body experimental provision and its embodiment of method, structure, feature and effect thereof that foundation the present invention is proposed, be described in detail as follows.
Refer to shown in Fig. 1 and Fig. 2, Fig. 1 is the water body experimental provision structural representation of the embodiment of the present invention, and Fig. 2 is column collection tube structural representation in embodiment.The present invention proposes a kind of device that is applied to simulate Sediments release and planktonic algae, submerged plant coupled relation, the release of bed mud sample collection, pollutants in sediments and algae, submerged plant growth are organically combined, for simulating the release action of different water environment condition bed muds, but the different ecological of quantitative examination simultaneously engineering (environmental dredging engineering, submerged plant recover engineering) is on the impact of body eutrophication and water pollution.The water body experimental provision of preferred embodiment of the present invention comprises bed mud releasing unit 1, cultivates unit 2, control module 3, pH value control system 13, dissolved oxygen DO control system 6, water circulation system 21, illuminator 22, temperature control system 24 and water quality monitoring system 29.
Described bed mud releasing unit 1, cultivation unit 2, control module 3 are respectively the rectangular parallelepiped casings, methacrylate sheet (or glass board material), are consisted of respectively.Bed mud releasing unit 1, to cultivate unit 2 adjacent successively with control module 3, connects with baffle plate between adjacent unit in twos, thereby form the rectangular parallelepiped test casing that three unit are interconnected.Described baffle plate is combined by drain bar and phytoplankton net (4).
A plurality of bases with bayonet socket 37 are set on the base plate of described bed mud releasing unit 1, are preferably 20, this bayonet socket can directly be connected and stably be fixed on base with the cylindrical sample collection tube, and can arbitrarily dismantle.The cylindrical sample collection tube 5 of many band plugs also is set in described bed mud releasing unit 1, is preferably 20 sampling pipes, for studying the physical and chemical properties change of different levels bed mud.The outer diameter of cylindrical sample collection tube is 9cm, can directly with columnar sampler, be connected, and it is highly 10～40cm, and preferred version is 20cm-30cm.
As shown in Figure 2, described cylindrical sample collection tube 5 is provided with two symmetrical electrode holes 34 at a certain distance from bottom, and the electrode of its pore size application monitoring system is complementary.Described electrode 35 can comprise pH electrode, dissolved oxygen DO (DO) electrode, oxidation-reduction potential (Eh) electrode, sulfuretted hydrogen microelectrode, ammonia nitrogen electrode etc.In the situation that electrode insertion not adopts rubber plug 36 by electrode hole 34 shutoff, prevent that the bed mud 39 in collection tube from revealing, on the bed mud 39 in collection tube, be water 38.
Described cultivation unit 2 is that planktonic algae and/or submerged plant are cultivated unit 2, for cultivating planktonic algae and/or submerged plant.This cultivation unit is connected with the bed mud releasing unit in left side by baffle plate, and the top of this baffle plate is poly (methyl methacrylate) plate or PVC plate or glass plate,, bottom is plankton net 4.The height of this plankton net is 5-20cm, is preferably 10-15cm; The height of the poly (methyl methacrylate) plate on top or PVC plate or glass plate deducts plankton net 4 height for the overall height of cultivating unit 2.
The right side of described cultivation unit 2 also is connected with control module 3 by another baffle plate, and the top of this baffle plate is plankton net 4, and bottom is poly (methyl methacrylate) plate or PVC plate or glass plate.The height of this plankton net is 5-20cm, is preferably 10-15cm.The height of the poly (methyl methacrylate) plate on top or PVC plate or glass plate deducts plankton net 4 height for the overall height of cultivating unit 2.
Above-mentioned plankton net 4 is No. 25 plankton nets (mesh 0.064mm), can directly be fixed on the inwall of the both sides of cultivating unit, and its underpart and/or top are arranged on methacrylate sheet.
Described control module 3, be the place of adjusting or the required water quality of preparation experiment, is mainly used in controlling pH value and/or the dissolved oxygen content of water body in experimental provision.
Described pH value control system 13 is by pH electrode 19, pH controller 16, sour storage tank 14, alkali storage tank 15, sour volume pump 17, alkali volume pump 18 and add soda acid mouth 20 and form.The pH electrode 19 of pH value control system 13 and add soda acid mouth 20 and be arranged in control module, and slip in the water body of casing, other equipment can be arranged on outside water body.The available hydrochloric acid of acid in acid storage tank 14 and/or sulfuric acid preparation, the alkali available hydrogen sodium oxide molybdena preparation in alkali storage tank 15, its concentration is determined by actual needs.The probe of pH value control system 13 by pH electrode 19 detected the pH value of control module 3 interior water bodys, feed back to pH controller 16, set the range of control of pH according to pH controller 16, if the pH detected value surpasses the pH setting value, pH controller 16 will provide a logical signal, thereby start pH adjusting agent by the acid in sour volume pump 17 or the alkali volume pump 18 sour storage tanks 14 of interpolation or alkali storage tank 15 or alkali in control module, within the scope that in the adjustment control module, the pH value of water body is extremely set, then stop volume pump.
Described dissolved oxygen DO control system 6, for controlling the dissolved oxygen content of water body in experimental provision, it is comprised of dissolved oxygen electrode 12, dissolved oxygen control instrument 7, welding bottle 8, nitrogen cylinder 9, flow controller 10 and sudden and violent tracheae (11).This system is set the value range of dissolved oxygen DO by dissolved oxygen control instrument 7, dissolved oxygen value by water body in 12 pairs of control modules of probe of dissolved oxygen electrode is detected, and measured value is fed back to dissolved oxygen control instrument 7, if the dissolved oxygen DO detected value is lower than the value range of aforementioned setting dissolved oxygen DO, dissolved oxygen control instrument will provide a logical signal adjust flux controller 10 and provide oxygen to aeration tube 11; If the dissolved oxygen DO detected value is higher than the value range of setting dissolved oxygen DO, dissolved oxygen control instrument will provide a logical signal adjust flux controller 10 and provide nitrogen to aeration tube 11, thereby within making the scope of dissolved oxygen DO in setting of water body in control module.
Be provided with stirrer 33 in control module 3, be preferably the adjustable speed stirrer, realize the even mixing of pH value in control module and/or dissolved oxygen DO by stirrer 33.
Illuminator 22, for to experimental provision, providing illumination, it is arranged on the top of whole device, by four columniform pillars, with four angles of device, be connected, light source forms for the light source board be comprised of four daylight lamps side by side, can control respectively each daylight lamp and capable of regulating illumination intensity by switch.The height of described four columniform pillars is 5-20cm, in order to prevent light source irradiation, causes that water temperature raises, and the height preferred version of pillar is 10cm.
Water temperature control system 24, the water temperature be used in controlling and regulating system, it is comprised of temperature controller 25, temperature display meter 26, well heater 27 and temp probe 28, according to concrete experiment situation, described well heater 27 and temp probe 28 can be arranged on bed mud releasing unit 1, cultivate a place or a few place in unit 2 and control module 3.Set the water temperature scope of experimental provision by temperature controller 25, preferably temperature controlling range is 5-40 ℃.Temp probe 28 is for detection of the temperature of water body in experimental provision, and the temperature value of detection is fed back to temperature controller 25, if water temperature is lower than the temperature controlling range set, 27 pairs of water bodys of temperature controller startup well heater are heated, until water temperature reaches in the Temperature Setting scope.
Water quality monitoring system 29 consists of electrode probe 32, Water Test Kits 31 and data processor 30 3 parts, electrode probe 32 can be for a plurality of, be arranged at respectively bed mud releasing unit 1 and/or cultivate the overlying water of unit 2 and the electrode hole 34 of cylindrical sample collection tube in.In bed mud releasing unit 1 and cultivation unit 2, a transportable siphon sampling pipe can be set respectively, this sampling pipe depth and place can change as required, and sampling pipe can be taked water sample, to measure the not measurable physical and chemical index of Water Test Kits.
The present invention also proposes a kind of water body research experiment method, and the method comprises the following steps:
1, collecting sample from natural water, for the lake of being studied or river, the cylindrical sample collection tube is connected with sampling thief, and gathers the undisturbed sediment sample from the research object water body, cylindrical sample collection tube top retains overlying water slightly, to reduce the disturbance of bed mud sample.The sample size gathered is a plurality of, is for example 20.Then select at random 5 with the cylindrical sample collection tube, the required electrode of analytical test is arranged in sampling pipe.After above-mentioned steps completes, by 20, with the cylindrical sample collection tube, stably be fixed on the base of bed mud releasing unit.
2, need to configure solution injection cultivation unit and control module by the collection in worksite overlying water or according to experiment, make the height of liquid level in whole device surpass more than the height 10cm of cylindrical sample collection tube.
3, according to experiment purpose, the serviceability temperature control system is controlled the water temperature of whole device, uses illumination system to control the intensity of illumination of whole device, uses control module to control pH value and the dissolved oxygen DO of whole device water body.After indices in this device reaches requirement of experiment, the water circulation system of starter gear, allow the water body of three unit in device in commutative state.
4, according to experiment purpose, required algae kind or the kind planting submerged plant of inoculation experiments in cultivating unit.If only carry out the research of Sediments release and planktonic algae, submerged plant growth coupled relation, but the pH of temporary close device and/or DO control system.
5, by water quality monitoring system, the water body in mensuration algae or submerged plant growth process and the physical and chemical index of gap water body; Can get the bed mud of cylindrical sample collection tube, research algal grown or the submerged plant growth process Changing Pattern to total amount and the form thereof of pollutant in bed mud simultaneously.
Example 1
The response mechanism of pollutant Transport And Transformation research in the breakout of water bloom process
1) utilize sampling thief to gather the bed mud of different pollution levels in the cylindrical sample collection tube, the electrode of pH electrode, oxidation-reduction potential (Eh) electrode, ammonia nitrogen is arranged in the electrode hole of cylindrical sample collection tube, then is fixed on the base of bed mud releasing unit.
2) the collection in worksite overlying water is slowly injected to this device, make the liquid level of water body surpass cylindrical sample collection tube 10cm.
3) opening temp. control system, the setting device water temperature is 27 ± 1 ℃; Open illumination system, the ratio that makes the illumination of system is 12/12, illumination in 12 hours, 12 hours dark.Close pH and/or DO control system simultaneously.
4) inoculation.The algae kind of the microcystic aeruginosa in the growth logarithmic phase is inoculated in the algae culture unit, makes the algae density of water body in 5 * 10
4Individual/L.
5) water circulation system of starter gear, the water body of the water body of bed mud releasing unit and algae culture unit is in circulating state.
6), in conjunction with water quality monitoring system, measure the content of the indexs such as breakout of water bloom process (measuring the biomass of cultivating unit) water-bed mud interface environments factor (pH, Eh and DO), sulfide, algae bio amount, total nitrogen, total phosphorus, ammonia nitrogen, nitre nitrogen, Phos, organic carbon (TOC), heavy metal (chromium, nickel, copper, zinc, arsenic, cadmium, lead, mercury).
7) pollutant water-bed mud interfacial diffusion flux is with reference to the model formation of Fick First Law:
In formula: F is the diffusion flux by overlying water; Factor of porosity for sediments; Nutritive salt gradient for overlying water-bed mud interface; Ds is the actual molecules coefficient of diffusion of having considered the bed mud effect.
8) in conjunction with different pollution level bed mud tests, the dynamic change of water-bed mud interface pollution thing in the whole process of research breakout of water bloom, inquiring into body eutrophication coerces down, how the pollutant Transport And Transformation behaviors such as nitrogen phosphorus, heavy metal respond, whether Water Environment Nitrogen phosphorus, heavy metal pollution are inhibited or strengthen, thereby disclose Dynamic Coupling relation between breakout of water bloom process and pollutant Transport And Transformation process.
Example 2
The impact that the variation of pH value and/or dissolved oxygen DO discharges pollutant in bed mud
1) bed mud that utilizes sampling thief to gather different pollution levels, in the cylindrical sample collection tube, is arranged on the electrodes such as pH, oxidation-reduction potential (Eh) electrode, ammonia nitrogen in the electrode hole of cylindrical sample collection tube, then is fixed on the base of bed mud releasing unit.
2) the collection in worksite overlying water is slowly injected to this device, make the liquid level of water body surpass cylindrical sample collection tube 10cm.
3) opening temp. control system, the setting device water temperature is 27 ± 1 ℃; Close the unlatching illumination system.
4) pH serial experiment and/or the different gradient DO serial experiment of different gradients are set, carry out pH and/or DO and change the impact research that pollutant in bed mud is discharged.
5) water circulation system of starter gear, the water body of the water body of bed mud releasing unit and pH and/or DO control module is in circulating state.
6), in conjunction with water quality monitoring system, measure the content of the indexs such as total nitrogen, total phosphorus, ammonia nitrogen, nitre nitrogen, Phos, organic carbon (TOC), heavy metal (chromium, nickel, copper, zinc, arsenic, cadmium, lead, mercury) in water body and bed mud.
7), in conjunction with control test, the research environment factor (pH and/or DO) changes the impact on pollutant Transport And Transformation behaviors such as water-bed mud interfacial nitrogen phosphorus, heavy metals.
Described studied water body comprises water, bed mud and hydrobiont herein.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet not in order to limit the present invention, any those skilled in the art, within not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. a water body experimental provision, is characterized in that it comprises: bed mud releasing unit, cultivation unit, control module, water body control system and water quality monitoring system;
Described bed mud releasing unit, to cultivate unit adjacent successively with control module, connects with baffle plate between adjacent unit in twos, thereby form the test casing that three unit are interconnected;
Described water body control system, for physical and chemical index and the water body flow of regulating the experimental provision water body;
Described water quality detection system, for detection of the physical and chemical index numerical value of water body, bed mud, planktonic organism and/or hydrophyte in experimental provision.
2. water body experimental provision according to claim 1, is characterized in that, described water body control system comprises one or more in pH value control system, dissolved oxygen DO control system, water circulation system, illuminator and temperature control system;
Described pH value control system is by pH electrode, pH controller, sour storage tank, alkali storage tank, sour volume pump, alkali volume pump and add the soda acid mouth and form, pH electrode and add the soda acid mouth and be arranged in control module;
Described dissolved oxygen DO control system is comprised of dissolved oxygen electrode, dissolved oxygen control instrument, welding bottle, nitrogen cylinder, flow controller and sudden and violent tracheae, dissolved oxygen electrode is detected for the dissolved oxygen value to water body, and measured value is fed back to dissolved oxygen control instrument, sudden and violent tracheae is for providing oxygen or nitrogen;
Water circulation system is comprised of pump and water pipe, for flowing of water body in the circulation experiment device;
Illuminator is comprised of a plurality of light sources, for the illumination of multiple intensity of illumination is provided to experimental provision;
Water temperature control system is comprised of temperature controller, temperature display meter, well heater and temp probe, the temperature be used in the regulating and controlling experimental provision.
3. water body experimental provision according to claim 1, is characterized in that, described baffle plate is combined by drain bar and phytoplankton net;
The bottom of cultivating the baffle plate between unit and bed mud releasing unit is plankton net, and top is drain bar;
The top of cultivating the baffle plate between unit and control module is plankton net, and bottom is drain bar.
4. water body experimental provision according to claim 1, is characterized in that, described bed mud releasing unit arranges a plurality of bases with bayonet socket and sampling pipe, by described bayonet socket, sampling pipe can be connected and stably be fixed on base.
5. water body experimental provision according to claim 4, is characterized in that, described sampling pipe is column, is provided with at a certain distance two symmetrical electrode holes from bottom, and the electrode of its pore size application monitoring system is complementary.
6. water body experimental provision according to claim 1, is characterized in that, described water quality monitoring system consists of electrode probe, Water Test Kits and data processor, and electrode probe is one or more, is arranged at the bed mud releasing unit and/or cultivates in unit.
7. according to the described water body experimental provision of claim 1-6 any one, it is characterized in that, also comprise the stirrer be arranged in control module, and one can or be cultivated the movably siphon sampling pipe that unit gathers water sample from the bed mud releasing unit.
8. a water body research experiment method, is characterized in that, adopts the described water body experimental provision of the claims 1-7, and the method comprises the following steps:
Gather bed mud with sampling pipe from studied lake or river, and retain overlying water on bed mud;
Sampling pipe after the collection bed mud is arranged in the bed mud releasing unit;
By the overlying water in studied lake or river or according to testing in the solution injection experiments device that need to configure; Make the height of the height of liquid level in whole device over the cylindrical sample collection tube;
The water temperature of regulating in experimental provision is in the temperature range of setting, regulates the pH value of water body and/or the content of dissolved oxygen DO, the regulating illumination time and intensity;
Required algae kind or the kind planting submerged plant of inoculation experiments in cultivating unit;
By water quality monitoring system, the water body in mensuration algae or submerged plant growth process and the physical and chemical index of gap water body; Can get the bed mud of cylindrical sample collection tube, research algal grown or the submerged plant growth process Changing Pattern to total amount and the form thereof of pollutant in bed mud simultaneously.
9. water body research experiment method according to claim 8, is characterized in that, if only carry out the research of Sediments release and planktonic algae, submerged plant growth coupled relation, without the pH value of regulating water body and the content of dissolved oxygen DO.
10. water body research experiment method according to claim 8 or claim 9, is characterized in that, the water body in experimental provision in experimentation in circulating state.
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| CN103364473A (en) * | 2013-07-26 | 2013-10-23 | 中国环境科学研究院 | Device and method for study on release of heavy metals and/or phosphate in sediments |
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