CN104407040A - System for automatic detection of concentration of heavy metal ions in soil and soil remediation - Google Patents
System for automatic detection of concentration of heavy metal ions in soil and soil remediation Download PDFInfo
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- CN104407040A CN104407040A CN201410692044.5A CN201410692044A CN104407040A CN 104407040 A CN104407040 A CN 104407040A CN 201410692044 A CN201410692044 A CN 201410692044A CN 104407040 A CN104407040 A CN 104407040A
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Abstract
The invention discloses a system for automatic detection of concentration of heavy metal ions in soil and soil remediation. The system disclosed by the invention is simple in structure, easy to implement, and capable of automatically measuring width and height of an object, so as to save manpower; the system can calculate and process the voltage signals acquired by an ion concentration detecting unit to obtain the ion concentration, namely the corresponding relation between the ion concentration and membrane potential is obtained according to a Nernst equation, and further the voltage signals are detected to obtain the concentration of the heavy metal ion; the system can measure, display and store the ion concentration; the system disclosed by the invention charges current to the soil to enable the metal ions in the soil to be conveyed to the electrodes, and then intensively collects and processes the conveyed metal ions, so as to achieve the pollution control purpose.
Description
Technical field
The present invention relates to a kind of automatic checkout system, particularly relate to a kind of soil heavy metal ion concentration and automatically detect and repair system, belong to automatic detection field.
Background technology
Along with the continuous quickening of process of industrialization and the sustainable growth of population, the heavy metal pollutions such as lead, copper, zinc become global problem.The exploitation of mankind's heavy metal, smelting, processing and business manufacturing activities increasing, happen occasionally by surprisingly revealing the sudden water quality heavy metal pollution accident that the reasons such as discharge in violation of regulations cause.It is large that heavy metal has toxicity, in the environment not easily by metabolism, is easily bioaccumulation and has the features such as biological amplification, not only can contaminant water environment, also can the existence of the serious threat mankind and aquatic organism, detects heavy metal concentration effectively accurately particularly important.
Agricultural soil is the class special soil strongly affected by mankind's activity, and its environmental quality and people's is healthy closely related.Cure of Soil pollution is mainly from a large amount of uses of Industrial " three Waste " and agricultural chemicals, chemical fertilizer, pollutant enters people's soil by irrigation water, also soil pollution is caused by atmospheric pollution, aerial particle (containing heavy metal and carcinogen etc.) dried wet deposition, As time goes on, the content of beary metal such as farmland topsoil lead, copper, zinc has the trend of increase.Due to the absorption of crops, Transport And Transformation is in Crop Root cauline leaf and fruit from soil for heavy metal element, thus the related heavy metal pollution causing crops, jeopardizes the general level of the health of people.Therefore, the on-line measurement how realizing Vegetable produce base heavy metal content in soil fast and easily becomes a vital realistic problem.
Such as application number is a kind of regional water environment heavy metal monitoring system of " 201320688736.3 ", multiple monitoring terminals that this system comprises management system for monitoring and is connected with it through GPRS.The transmitting-receiving of management system for monitoring center processor connection data, Data Analysis Services and database management module, also connect display/user terminal, and data transmit-receive module connects storage GPS, GIS of each monitoring terminal and the database of heavy metals concentration.The main control module of each monitoring terminal comprises flush bonding processor and clock and GPRS submodule, and detection module comprises temperature sensor and heavy-metal electrochemical sensor array.During operation monitoring terminal survey the temperature of water environment and heavy metal concentration and be sent to management system for monitoring and store and show.Itself and standard value and historical data contrast by Data Analysis Services module, when jumping for polluted water or certain heavy metal concentration, report to the police.This system needs to be further improved in accuracy of detection and mode.
And for example application number is a kind of secondary application of sample concentration of heavy metal ion method of testing of " 201410291064.1 ", comprises the steps: to carry out pre-service to water sample; Preparation concentration of heavy metal ion is standard model solution and the electrolytic solution of Cs; Add the electrolytic solution that volume is V0 in electrolytic tank, in electrolytic tank, add the water sample that volume is Vx, obtain corresponding peak height h1 from current-voltage curve figure a1; Add the water sample that volume is Vx in electrolytic solution, obtain corresponding peak height h2 from current-voltage curve figure a2; Add the standard model that volume is Vs in electrolytic tank, obtain corresponding peak height h3 from current-voltage curve figure a3; Concentration of heavy metal ion adopts 3 algorithms to calculate, and obtains concentration of heavy metal ion Cx, and the average calculation error.This invention solves the problem of peak height-concentration curve only co-ordinate zero point, reduces the non-linear impact on measurement result of peak height-concentration curve.This invention cost is higher, and complicated operation, detection mode needs to be further improved.
Summary of the invention
Technical matters to be solved by this invention provides a kind of soil heavy metal ion concentration for the deficiency of background technology automatically to detect and repair system, can realize the measurement to ion concentration, display and storage, and then reach the object of pollution treatment.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
A kind of soil heavy metal ion concentration detects and repair system automatically, comprise micro controller module, ion concentration detecting unit, voltage amplifier unit, analog to digital converter unit, display unit, key input unit, alarm unit, electronic soil restoring device, described ion concentration detecting unit, voltage amplifier unit, analog to digital converter unit connects successively, described analog to digital converter unit, display unit, key input unit, alarm unit, electronic soil restoring device is connected on the corresponding port of micro controller module, described micro controller module comprises computing unit, contrast unit and control module,
Ion concentration detecting unit, gathers for the analog voltage signal produced ion electrode;
Voltage amplifier unit, for carrying out filtering and amplification by analog voltage signal;
AD conversion unit, for changing into digital signal by the analog voltage signal after amplification;
Computing unit, draws ion concentration for carrying out computing according to this digital signal;
Display unit, for showing the ion concentration that micro controller module calculates in real time;
Key input unit, for inputting the normal ion concentration threshold value of setting;
Contrast unit, contrasts with the normal ion concentration threshold value of setting for the ion concentration calculated according to computing unit, if exceed normal concentration threshold value, sends a signal to control module;
Control module, the signal for sending according to contrast unit controls alarm unit and gives the alarm, and starts electronic soil restoring device simultaneously.
Automatically detect as a kind of soil heavy metal ion of the present invention concentration and the further preferred version of repair system, the model of described micro controller module is AVR series monolithic.
Automatically detect as a kind of soil heavy metal ion of the present invention concentration and the further preferred version of repair system, described display unit is LCD display.
Automatically detect as a kind of soil heavy metal ion of the present invention concentration and the further preferred version of repair system, this system adopts chargeable storage to power.
Automatically detect as a kind of soil heavy metal ion of the present invention concentration and the further preferred version of repair system, described alarm unit is acousto-optic warning unit.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
1, structure of the present invention simple, be easy to realize and automatically can measure the wide and high of object, save manpower;
2, the present invention can draw ion concentration according to carrying out computing according to the voltage signal of ion concentration detecting unit collection; Namely draw the relation of the correspondence of ion concentration and film potential according to Nernst equation and then draw concentration of heavy metal ion by detectable voltage signals;
3, the present invention can realize measurement to ion concentration, display and storage;
4, the present invention adopts to soil charging stream, the metallic ion in soil etc. is transported to electrode, then carries out centralized collection process to the metallic ion of transport, and then reach the object of pollution treatment.
Accompanying drawing explanation
Fig. 1 is structure principle chart of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
As shown in Figure 1, a kind of soil heavy metal ion concentration detects and repair system automatically, comprise micro controller module, ion concentration detecting unit, voltage amplifier unit, analog to digital converter unit, display unit, key input unit, alarm unit, electronic soil restoring device, described ion concentration detecting unit, voltage amplifier unit, analog to digital converter unit connects successively, described analog to digital converter unit, display unit, key input unit, alarm unit, electronic soil restoring device is connected on the corresponding port of micro controller module, described micro controller module comprises computing unit, contrast unit and control module,
Ion concentration detecting unit, gathers for the analog voltage signal produced ion electrode;
Voltage amplifier unit, for carrying out filtering and amplification by analog voltage signal;
AD conversion unit, for changing into digital signal by the analog voltage signal after amplification;
Computing unit, draws ion concentration for carrying out computing according to this digital signal;
Display unit, for showing the ion concentration that micro controller module calculates in real time;
Key input unit, for inputting the normal ion concentration threshold value of setting;
Contrast unit, contrasts with the normal ion concentration threshold value of setting for the ion concentration calculated according to computing unit, if exceed normal concentration threshold value, sends a signal to control module;
Control module, the signal for sending according to contrast unit controls alarm unit and gives the alarm, and starts electronic soil restoring device simultaneously.
Wherein, the model of described micro controller module is AVR series monolithic, and described display unit is LCD display, and this system adopts chargeable storage to power, and described alarm unit is acousto-optic warning unit.
AVR single chip has prefetched instruction function, namely when an execution instruction, in advance next instruction is got into, and call instruction can be performed within a clock period; Multiple accumulator type, data processing speed is fast; AVR single chip has 32 general purpose working registers, and being equivalent to has 32 viaducts, can fast passing; Response time is fast.AVR single chip has multiple fixing interrupt vector entry address, can respond interruption fast; AVR single chip power consumption is low.For typical power consumption situation, be 100nA when WDT closes, be more suitable for battery powered application apparatus; The minimum 1.8V of some devices gets final product work; AVR single chip security performance is good.
For the heavy metal pollution that Vegetable Base exists, invent a kind of soil heavy metal ion concentration and automatically detected and repair system.This system, based on ion selective membrane technology, utilizes the electrochemical response performance of potentiometry research ISE, and sets up the mathematical model of electrode potential and ion concentration in conjunction with one-variable linear regression.Based on AVR single chip and AD620 transport and placing device, devise hardware detecting circuit and trace routine, achieve the operations such as the measurement to ion concentration, display and storage.The present invention adopts to soil charging stream, the metallic ion in soil etc. is transported to electrode, then carries out centralized collection process to the metallic ion of transport, and then reach the object of pollution treatment.
The principle of ion concentration detecting unit: ion-selective electrode is a kind of electromotive force type electrochemical sensor, the key component of ion-selective electrode is ion-selective membrane, electron exchange can not be there is in ion-selective membrane, but owing to there is ion concentration difference, ion-exchange can be there is in the both side surface of ion-selective membrane, form concentration difference membrane potential, it is as follows that the particular ion concentration in membrane potential and solution to be measured obeys Nernst equation:
Nernst equation is the principle of work of ion-selective electrode.Due to the ion activity a of ion-selective electrode internal reference solution
jkeep constant, therefore membrane potential can be expressed as:
In formula: E
mfor membrane potential (V); R=8.314J/ (Kmol) is gas law constant; E
0for initial potential, T=t+273.15 is absolute temperature (K); F is Faraday constant (96487c/mol); Z
ifor ionic charge number; a
ifor ion activity to be measured, such film potential just becomes the function of ion concentration logarithm.
Those skilled in the art of the present technique are understandable that, unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this, and every technological thought proposed according to the present invention, any change that technical scheme basis is done, all falls within scope.By reference to the accompanying drawings embodiments of the present invention are explained in detail above, but the present invention is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, makes a variety of changes under can also or else departing from the prerequisite of present inventive concept.
Claims (5)
1. a soil heavy metal ion concentration detects and repair system automatically, it is characterized in that: comprise micro controller module, ion concentration detecting unit, voltage amplifier unit, analog to digital converter unit, display unit, key input unit, alarm unit, electronic soil restoring device, described ion concentration detecting unit, voltage amplifier unit, analog to digital converter unit connects successively, described analog to digital converter unit, display unit, key input unit, alarm unit, electronic soil restoring device is connected on the corresponding port of micro controller module, described micro controller module comprises computing unit, contrast unit and control module,
Ion concentration detecting unit, gathers for the analog voltage signal produced ion electrode;
Voltage amplifier unit, for carrying out filtering and amplification by analog voltage signal;
AD conversion unit, for changing into digital signal by the analog voltage signal after amplification;
Computing unit, draws ion concentration for carrying out computing according to this digital signal;
Display unit, for showing the ion concentration that micro controller module calculates in real time;
Key input unit, for inputting the normal ion concentration threshold value of setting;
Contrast unit, contrasts with the normal ion concentration threshold value of setting for the ion concentration calculated according to computing unit, if exceed normal concentration threshold value, sends a signal to control module;
Control module, the signal for sending according to contrast unit controls alarm unit and gives the alarm, and starts electronic soil restoring device simultaneously.
2. a kind of soil heavy metal ion concentration according to claim 1 detects and repair system automatically, it is characterized in that: the model of described micro controller module is AVR series monolithic.
3. a kind of soil heavy metal ion concentration according to claim 1 detects and repair system automatically, it is characterized in that: described display unit is LCD display.
4. a kind of soil heavy metal ion concentration according to claim 1 detects and repair system automatically, it is characterized in that: this system adopts chargeable storage to power.
5. a kind of soil heavy metal ion concentration according to claim 1 detects and repair system automatically, it is characterized in that: described alarm unit is acousto-optic warning unit.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931552A (en) * | 2015-05-29 | 2015-09-23 | 苏州合欣美电子科技有限公司 | Method for automatically detecting mercury metal ion concentration of vegetable base |
| CN104931567A (en) * | 2015-05-29 | 2015-09-23 | 苏州合欣美电子科技有限公司 | Automatic mercury ion concentration detection and control system with power supply optimization function |
| CN105784800A (en) * | 2016-04-28 | 2016-07-20 | 无锡昊瑜节能环保设备有限公司 | Intelligent monitoring system for heavy metal content of industrial water quality |
| CN106645321A (en) * | 2016-11-17 | 2017-05-10 | 江苏智石科技有限公司 | System for intelligent monitoring of soil mercury metal ionic concentration |
| CN106734174A (en) * | 2017-01-17 | 2017-05-31 | 中国地质科学院矿产资源研究所 | Electric restoration contaminated soil display system |
| CN107247083A (en) * | 2017-06-08 | 2017-10-13 | 北京农业信息技术研究中心 | A kind of heavy metals in farmland pollution on-line monitoring early warning and real time processing system and method |
| CN110398515A (en) * | 2018-07-26 | 2019-11-01 | 刘茂诚 | Vegetables and fruits nitrate detection device and its method |
| CN113252854A (en) * | 2021-07-02 | 2021-08-13 | 陕西中天盛隆智能科技有限公司 | Intelligent detecting and alarming system for ion concentration in liquid |
| CN113433283A (en) * | 2021-07-05 | 2021-09-24 | 陕西中天盛隆智能科技有限公司 | Intelligent detecting and measuring system for ion concentration in liquid |
| CN106970125B (en) * | 2017-04-11 | 2024-02-23 | 北京农业智能装备技术研究中心 | Portable soil heavy metal detection device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202083661U (en) * | 2011-04-28 | 2011-12-21 | 浙江工业大学 | Quick detector for detecting heavy metal content in vegetable base |
| CN103048366A (en) * | 2012-12-15 | 2013-04-17 | 新昌县冠阳技术开发有限公司 | Portable rapid detector for soil heavy metal |
| CN203316472U (en) * | 2013-05-07 | 2013-12-04 | 辽宁山水城市园林景观有限公司 | In-situ full-automatic contaminated soil remediation device |
-
2014
- 2014-11-25 CN CN201410692044.5A patent/CN104407040A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202083661U (en) * | 2011-04-28 | 2011-12-21 | 浙江工业大学 | Quick detector for detecting heavy metal content in vegetable base |
| CN103048366A (en) * | 2012-12-15 | 2013-04-17 | 新昌县冠阳技术开发有限公司 | Portable rapid detector for soil heavy metal |
| CN203316472U (en) * | 2013-05-07 | 2013-12-04 | 辽宁山水城市园林景观有限公司 | In-situ full-automatic contaminated soil remediation device |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931552A (en) * | 2015-05-29 | 2015-09-23 | 苏州合欣美电子科技有限公司 | Method for automatically detecting mercury metal ion concentration of vegetable base |
| CN104931567A (en) * | 2015-05-29 | 2015-09-23 | 苏州合欣美电子科技有限公司 | Automatic mercury ion concentration detection and control system with power supply optimization function |
| CN105784800A (en) * | 2016-04-28 | 2016-07-20 | 无锡昊瑜节能环保设备有限公司 | Intelligent monitoring system for heavy metal content of industrial water quality |
| CN106645321A (en) * | 2016-11-17 | 2017-05-10 | 江苏智石科技有限公司 | System for intelligent monitoring of soil mercury metal ionic concentration |
| CN106734174A (en) * | 2017-01-17 | 2017-05-31 | 中国地质科学院矿产资源研究所 | Electric restoration contaminated soil display system |
| CN106970125B (en) * | 2017-04-11 | 2024-02-23 | 北京农业智能装备技术研究中心 | Portable soil heavy metal detection device |
| CN107247083A (en) * | 2017-06-08 | 2017-10-13 | 北京农业信息技术研究中心 | A kind of heavy metals in farmland pollution on-line monitoring early warning and real time processing system and method |
| CN107247083B (en) * | 2017-06-08 | 2023-08-04 | 北京农业信息技术研究中心 | Online monitoring, early warning and real-time processing system and method for farmland heavy metal pollution |
| CN110398515A (en) * | 2018-07-26 | 2019-11-01 | 刘茂诚 | Vegetables and fruits nitrate detection device and its method |
| CN113252854A (en) * | 2021-07-02 | 2021-08-13 | 陕西中天盛隆智能科技有限公司 | Intelligent detecting and alarming system for ion concentration in liquid |
| CN113252854B (en) * | 2021-07-02 | 2023-03-24 | 陕西中天盛隆智能科技有限公司 | Intelligent detecting and alarming system for ion concentration in liquid |
| CN113433283A (en) * | 2021-07-05 | 2021-09-24 | 陕西中天盛隆智能科技有限公司 | Intelligent detecting and measuring system for ion concentration in liquid |
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Application publication date: 20150311 |