CN107211612A - Modified saline land greening drives salt method with low-voltage DC - Google Patents

Modified saline land greening drives salt method with low-voltage DC Download PDF

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Publication number
CN107211612A
CN107211612A CN201710516244.9A CN201710516244A CN107211612A CN 107211612 A CN107211612 A CN 107211612A CN 201710516244 A CN201710516244 A CN 201710516244A CN 107211612 A CN107211612 A CN 107211612A
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CN
China
Prior art keywords
salt
energy supplying
salinity
voltage
supplying system
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Pending
Application number
CN201710516244.9A
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Chinese (zh)
Inventor
赵林
李月华
陈亮
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Tianjin University
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Tianjin University
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Priority to CN201710516244.9A priority Critical patent/CN107211612A/en
Publication of CN107211612A publication Critical patent/CN107211612A/en
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01BSOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B79/00Methods for working soil
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/22Improving land use; Improving water use or availability; Controlling erosion
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/40Afforestation or reforestation

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

The present invention discloses a kind of modified saline land greening low-voltage DC and drives salt method, the drive salt device used includes driving salt system, energy supplying system, the drive salt system is connected by wire with the energy supplying system, and this method step mainly includes placing positive and negative electrode, connection drive salt device, energy supplying system Regulation Control and adjusts voltage or current step according to salinity measurement output valve.The of the invention rising for effectively suppressing underground water salinity, retardance salinity rises to soil under capillary action, reaches the effect of " water rises salt and stayed ", and control salt efficiency is 30% 90%, if coordinating suitable soil amelioration techniques, control salt efficiency is up to more than 90%.

Description

Modified saline land greening drives salt method with low-voltage DC
Technical field
The invention belongs to saline-alkali soil greening technology field, it is related to a kind of be applied to using shallow underground salt water as main function The greening of coastal saline soil, and in particular to a kind of modified saline land greening drives salt method with low-voltage DC.
Background technology
At present, administering the measure in salt-soda soil has hydro-melioration measure (flushing/shower salt, well row, closed drainage), agricultural Technical measures (deep ploughing is digged, soaked field is stirred, crop rotation and biological modification are utilized, salt-enduring cultivars seed selection), chemical modifying (gypsum, chlorine Change calcium, calcium carbonate etc.) etc..On the whole, the modified utilization of domestic and international salinized soil, typically passes through following two aspects:The One be by improved soil in itself, reduction soil dissoluble, sodium adsorption ratio and basicity are that plant creates good growth Environmental condition;Two be to utilize biological modification, i.e., by from the salt-enduring cultivars in plant, and bearing of excavating that kind itself has Resistance to ability, is directly planted in salinized soil afterwards, but these technologies all have " accumulation of salt in the surface soil " phenomenon, and place over time Manage cost higher.
Littoral plain area has specific geological structure, is fed by shallow embedding mildly saline groundwater, Features of Shallow Groundwater buried depth Shallow and groundwater flow is nearly at dead state, and vertical evaporation is significantly increased, and turns into main excretion pathway, in addition Influenceed by marine bed with seawater, tide, salinity is very high in soil layer.Aeration zone is generally silty clay, sand or silt clay Interaction deposition structure, water salt easily rises to vegetation root system layer or earth's surface under strong evaporation, and plant is due to physiological water shortage And it is dead, the phenomenon of vegetation degeneration is caused, seawater invasion exacerbates the problems such as salinization of soil, muskeg are degenerated.Therefore lead The decline of the bio-diversities such as coastal region vegetation or even whole ecosystem degradation aggravation are caused, coastal region life is greatly constrained The functional rehabilitation of state system.
Electric repairing technique is a kind of efficient, based technique for in-situ remediation just risen for nearly 20 years, and electro reclamation is utilized both at home and abroad Technical principle, research emphasis is more in heavy metal-polluted soil cation (lead, chromium, arsenic, zinc, cadmium, copper, nickel, mercury, manganese etc.) and organic contamination In terms of the electro reclamation of thing, and the research for being used for desalination is less, is more common in water treatment applications research, and it is green to be used for beach saline land The electronic drive salt technology changed yet there are no invention.
The content of the invention
To solve the deficiencies in the prior art, the present invention provides a kind of modified saline land greening low-voltage DC Drive salt method.
The technical solution adopted for the present invention to solve the technical problems is as follows:Modified saline land greening low-voltage DC Salt method is driven, the drive salt device used includes driving salt system, energy supplying system, and the drive salt system is with the energy supply by wire System connection, this method comprises the following steps:
(1) the positive and negative conductive electrode for driving salt system, is put in underground reservoir or aeration zone;
(2) the positive and negative conductive electrode of salt system, will be driven and energy supplying system connects into loop;The energy supplying system is the drive salt System provides low-voltage DC, and the energy supplying system turns any of direct current transformation or solar powered three kinds by battery, exchange Or combination is constituted;
(3), energy supplying system carries out pressure regulation by increasing and decreasing power or the closure of circuit is realized by adjusting zero energy;
(4), salinity or setting Soil salinity on-line monitoring system in sample detecting soil, are exported according to monitoring system salinity Carry out the regulation of voltage or electric current.
The energy supplying system provides low-voltage DC for the drive salt system, and the energy supplying system turns straight by battery, exchange Rheology is pressed or solar powered three kinds of any or combination is constituted.
The operation principle of the present invention:The present invention be according to low-voltage DC both positive and negative polarity Electro Sorb respectively to zwitterion and Electromigration, separates underground water reclaimed water-salt according to low-voltage DC electro reclamation principle, and retardance salinity is under capillary action Soil is risen to, the effect of " water rises salt and stayed " is reached, promotes the growth of ground flora, and overcome existing soil alkaline improving technology Implement " accumulation of salt in the surface soil " phenomenon occurred after a period of time.
The beneficial effect that the present invention reaches:
1st, the present invention effectively suppresses the rising of underground water salinity, and retardance salinity rises to soil, reached under capillary action The effect of " water rises salt and stayed ", control salt efficiency is in 30%-90%, if coordinating suitable soil amelioration techniques, control salt efficiency is reachable More than 90%.
2nd, the present invention uses energy supplying system by increasing and decreasing power progress pressure regulation or realizing circuit by adjusting zero energy Closure, is saved, and overall energy consumption is small, and maintenance cost is low, has ensured drive salt process continuous and effective.
3rd, present invention process is simple and performance is controllable, small to soil disturbance and cheap compared with other improved means.
Brief description of the drawings
Fig. 1 is the drive salt apparatus structure schematic diagram of the use of the present invention;
Fig. 2 is the drive salt test design sketch of the inventive method.
Reference:1- electrodes;2- wires;3- batteries.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in figure 1, the drive salt device that the present invention is used, including salt system, energy supplying system are driven, the drive salt system is by leading Line 2 is connected with the energy supplying system, and the energy supplying system provides low-voltage DC for the drive salt system, and the energy supplying system leads to The pressure regulation that increase and decrease power carries out system is crossed, the closure of circuit is carried out by being adjusted to zero energy, the energy supplying system is by battery, exchange Any or combination for turning direct current transformation or solar powered three kinds is constituted, and in order to save the energy, the energy supplying system can also be adopted With intermittent power supply, the present embodiment energy supplying system is made up of battery 3, and the drive salt system is made up of positive and negative conductive electrode 1, is turned The both positive and negative polarity of battery 3 is changed, the both positive and negative polarity of the positive and negative conductive electrode 1 is changed, the quantity of the positive and negative conductive electrode 1 includes But 1 is not limited to, the quantity of the positive and negative conductive electrode 1 of the present embodiment is 1, and the positive and negative conductive electrode 1 is embedded in underground and contained In water layer or aeration zone, the rising for suppressing salinity in underground water.
Modified saline land greening drives salt method with low-voltage DC, and using above-mentioned drive salt device, this method includes as follows Step:
(1) the positive and negative conductive electrode for driving salt system, is put in underground reservoir or aeration zone;
(2) the positive and negative conductive electrode of salt system, will be driven and energy supplying system connects into loop;The energy supplying system is the drive salt System provides low-voltage DC, and the energy supplying system turns any of direct current transformation or solar powered three kinds by battery, exchange Or combination is constituted;The present embodiment energy supplying system uses battery;
(3), energy supplying system is by increasing and decreasing the pressure regulation of power progress system or realizing closing for circuit by adjusting zero energy Close;
(4), salinity or setting Soil salinity on-line monitoring system in sample detecting soil, are exported according to monitoring system salinity The regulation of voltage or electric current is carried out, when salinity is not reduced in soil, or salinity decrement is when being not up to actual requirement, takes The measure of high current or voltage;Salinity purge ratio reduces curtage to subtract on the basis of actual demand is reached simultaneously The output of few energy consumption.
The drive salt test of the present invention:The conductive electrode of the drive salt device of use is respectively placed in long 40cm × wide 50cm × height In the native case of 60cm experiment, native case simulates the migration of coastal region shallow underground salt water, and experiment uses stainless (steel) wire electrode, is powered Afterwards, the salinity after 24h in soil can decline more than 30%, drive salt design sketch and see Fig. 2.
It should be appreciated that embodiment and example discussed herein simply to illustrate that, to those skilled in the art For, it can be improved or be converted, and all these modifications and variations should all belong to the protection of appended claims of the present invention Scope.

Claims (2)

1. modified saline land greening drives salt method with low-voltage DC, the drive salt device used includes driving salt system, energy supply System, the drive salt system is connected by wire with the energy supplying system, it is characterised in that this method comprises the following steps:
(1) the positive and negative conductive electrode for driving salt system, is put in underground reservoir or aeration zone;
(2) the positive and negative conductive electrode of salt system, will be driven and energy supplying system connects into loop;
(3), energy supplying system carries out pressure regulation by increasing and decreasing power or the closure of circuit is realized by adjusting zero energy;
(4), salinity or setting Soil salinity on-line monitoring system in sample detecting soil, export according to monitoring system salinity and carry out The regulation of voltage or electric current.
2. according to the method described in claim 1, it is characterised in that the energy supplying system provides low-pressure direct for the drive salt system Stream electricity, any or combination that the energy supplying system turns direct current transformation or solar powered three kinds by battery, exchange is constituted.
CN201710516244.9A 2017-06-29 2017-06-29 Modified saline land greening drives salt method with low-voltage DC Pending CN107211612A (en)

Priority Applications (1)

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CN201710516244.9A CN107211612A (en) 2017-06-29 2017-06-29 Modified saline land greening drives salt method with low-voltage DC

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Application Number Priority Date Filing Date Title
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2590990A1 (en) * 2006-05-31 2007-11-30 Sean Frisky In-situ salt remediation and ground heating technology
CN102668760A (en) * 2012-05-15 2012-09-19 北京奈艾斯新材料科技有限公司 Method and device for governing saline-alkali soil
CN103736718A (en) * 2013-12-27 2014-04-23 河南理工大学 Electrokinetic remediation method and device of heavy metal contaminated soil
CN205052095U (en) * 2015-10-30 2016-03-02 金柏生态环境股份有限公司 Possesses automatic saline and alkaline land water circulating system of saline and alkaline function that arranges
CN106211850A (en) * 2016-08-24 2016-12-14 山东胜伟园林科技有限公司 A kind of alkaline land improving drainage system utilizing solar energy energy supply

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2590990A1 (en) * 2006-05-31 2007-11-30 Sean Frisky In-situ salt remediation and ground heating technology
CN102668760A (en) * 2012-05-15 2012-09-19 北京奈艾斯新材料科技有限公司 Method and device for governing saline-alkali soil
CN103736718A (en) * 2013-12-27 2014-04-23 河南理工大学 Electrokinetic remediation method and device of heavy metal contaminated soil
CN205052095U (en) * 2015-10-30 2016-03-02 金柏生态环境股份有限公司 Possesses automatic saline and alkaline land water circulating system of saline and alkaline function that arranges
CN106211850A (en) * 2016-08-24 2016-12-14 山东胜伟园林科技有限公司 A kind of alkaline land improving drainage system utilizing solar energy energy supply

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王宇等: "污染土壤电动修复技术研究进展", 《化学研究》 *

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Application publication date: 20170929

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