WO2022086325A1 - Procédé et système de traitement de sol contenant des racines d'espèces végétales invasives pour inactiver la matière végétale dans le sol - Google Patents

Procédé et système de traitement de sol contenant des racines d'espèces végétales invasives pour inactiver la matière végétale dans le sol Download PDF

Info

Publication number
WO2022086325A1
WO2022086325A1 PCT/NL2021/050634 NL2021050634W WO2022086325A1 WO 2022086325 A1 WO2022086325 A1 WO 2022086325A1 NL 2021050634 W NL2021050634 W NL 2021050634W WO 2022086325 A1 WO2022086325 A1 WO 2022086325A1
Authority
WO
WIPO (PCT)
Prior art keywords
soil
treatment zone
heating
providing
temperature
Prior art date
Application number
PCT/NL2021/050634
Other languages
English (en)
Inventor
Marcus Lambertus Josephus VAN DEN BRAND
Jacques Arnoldus Wilhelmus Maria ROSSUM
Theodorus Johannus VENDRIG
Original Assignee
Hannover Milieu- En Veiligheidstechniek B.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hannover Milieu- En Veiligheidstechniek B.V. filed Critical Hannover Milieu- En Veiligheidstechniek B.V.
Publication of WO2022086325A1 publication Critical patent/WO2022086325A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M21/00—Apparatus for the destruction of unwanted vegetation, e.g. weeds
    • A01M21/04—Apparatus for destruction by steam, chemicals, burning, or electricity
    • A01M21/046—Apparatus for destruction by steam, chemicals, burning, or electricity by electricity
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B47/00—Soil-working with electric potential applied between tools and soil
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M21/00—Apparatus for the destruction of unwanted vegetation, e.g. weeds
    • A01M21/04—Apparatus for destruction by steam, chemicals, burning, or electricity
    • 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
    • Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/40—Monitoring or fighting invasive species

Definitions

  • the present invention relates to a method and system of processing soil containing plant material, such as roots of invasive plant species, to inactivate the plant material in the soil.
  • Japanese knotweed also known as Asian knotweed
  • Asian knotweed is a plant native to East Asia, more specifically to Japan, China and Korea.
  • the invasive root system combined with the strong growth, can damage concrete foundations, buildings, flood defences, roads, paving, retaining walls and architectural sites. Fully removing the parts of the plant that are above ground is not sufficient to prevent it from growing back. Even the smallest parts of the (still living) root-system can cause the plant to grow back.
  • Japanese publication No. JP 2020171247A describes a steam heating treatment method capable of disabling germination of buried seeds by exhausting steam.
  • Document JP 2001269067A describes a soil disinfection method using heat. Furthermore, by heating the soil, growth of agricultural products can be stimulated.
  • a goal of the present invention is to provide a method and system for locally exterminating, or at least significantly reducing, plant species, in particular invasive plant species such as Japanese knotweed, in soil, wherein at least one of the above mentioned problems is at least partially alleviated.
  • the invention relates to a method of processing soil containing plant material, such as roots of invasive plant species, to inactivate the plant material in the soil, the method comprising the steps of:
  • the heating system for providing heat into the treatment zone, wherein the treatment zone is heated to, and kept at, a temperature in a temperature range of 40 degrees Celsius to 150 degrees Celsius for a predetermined duration for inactivating the plant material in the soil of the treatment zone.
  • live plant material such as roots of invasive plant species (such as Japanese knotweed) that is present in the soil can be effectively destroyed by heating to a relatively low temperature, for instance in the range of 40 °C and 150 °C, for a predetermined amount of time. Due to a predetermined duration of exposure to the increased temperatures of the range, the roots are effectively destroyed, or at least inactivated, such that the plant does not grow back from remainders of the roots that are still subsurface in the soil.
  • the inventors have discovered that by heating the soil to around 50 °C to 60 °C for two hours was already sufficient for inactivating the roots of a Japanese knotweed under laboratory conditions.
  • the treatment zone wherein the roots of the plant are located, is therefore heated throughout by the at least one heating unit that is placed into the treatment zone.
  • the heating unit preferably penetrates the soil in a downward fashion, as seen from the surface.
  • the at least one heating unit is inserted at least partially in the treatment zone, this means that the at least one heating unit is arranged at least partially subsurface into the treatment zone.
  • the ground is not only heated at the surface level, but also in the deeper parts of the treatment zone.
  • the roots can be effectively inactivated (or destroyed).
  • the method is, due to the relatively low temperatures used, safe to use.
  • the temperature range is from 45 to 100 degrees Celsius, preferably from 50 to 70 degrees Celsius.
  • Lower temperatures require less energy for heating, and cause less risk of injury or damages. For instance, by keeping the temperatures below a 100 °C (for instance below 95 °C), the boiling point of water is not reached, such that the risk of boiling water in nearby water lines and/or bursting water lines is prevented, adding to the safety of the procedure.
  • the method comprises maintaining the temperature in the temperature range for a total duration of 2 hours to 14 days, preferably 8 hours to 8 days, more preferably 12 hours to 7 days, even more preferably 24 hours to 6 days, most preferably 2 days to 5 days.
  • the predetermined duration is in these ranges.
  • the heating system comprises a plurality of heating units.
  • the step of installing said at least one heating unit in the soil comprises:
  • the heat is also provided in a distributed manner over the treatment zone, such that an effective and efficient setup is achieved for heating the treatment zone. It is further preferred that the respective positions in the surface area are determined such that neighbouring heating units of the plurality of heating units are substantially equidistantly interspaced.
  • an evenly distributed setup is achieved, such that the soil of the treatment zone is heated more evenly.
  • the temperature can be kept as low as possible. This improves the energy efficiency of the system.
  • At least one of the heating units of the plurality of heating units is inserted to a depth that is different from an inserted depth of another of the plurality of heating units, wherein said difference of depth is at least 10% of the depth of the treatment zone.
  • said difference of depth is at least 10% of the depth of the treatment zone.
  • the method further comprises the steps of: providing a temperature measurement system comprising at least one sensors for providing a signal being indicative for the soil temperature; installing the temperature measurement system in the treatment zone, such that the temperature measurement system is arranged for measuring a temperature of the soil at at least one location in the treatment zone.
  • a temperature measurement system comprising at least one sensors for providing a signal being indicative for the soil temperature
  • installing the temperature measurement system in the treatment zone such that the temperature measurement system is arranged for measuring a temperature of the soil at at least one location in the treatment zone.
  • the temperature measurement system comprises a plurality of temperature sensors and the step of installing the temperature measurement system in the treatment zone comprises:
  • a temperature distribution around the treatment zone can be obtained, such that one can set the predetermined time with a greater certainty. Also, if a “cold-spot” in the treatment zone is identified, the respective neighbouring heating units can be controlled to provide more heat to resolve the coldspot.
  • the step of determining respective measurement position comprises determining the position of the temperature sensor such that it is positioned at a substantially equal distance from surrounding heating units.
  • the temperature sensors are hereby located at locations that are most likely the coldspots, one is able to deduce with greater certainty that the entire treatment zone is within the prescribed temperature range. For this reason, it is also preferred that positions of the plurality of temperature sensors and the positions of the plurality of heating units are determined such that they are alternately arranged.
  • the method further comprises providing a controller for controlling the heating system, wherein the step of controlling the heating system comprises determining, based on an input signal, the amount of heating power required for raising, and/or maintaining, the temperature in the temperature range.
  • the heating system can be controlled on the basis of, for instance, the environmental conditions, such as the wind speed, outside temperature, etc. On a hot summer day the heating system will most likely have to provide less heat to maintain the prescribed temperature range when compared to stormy conditions on a cold winter night. It is, however, preferred that the heating system is controlled on the basis of the signal being indicative for the soil temperature, as a direct feedback control loop is thereby obtained. This signal can for instance be provided by the temperature measurement system.
  • the heating system comprises an electrical-resistance heating system, wherein at least one heating unit comprises three spaced apart electrodes; wherein the electrodes are connected to a three-phase alternating current power source and the respective first, second and third electrode are connected to the respective first, second and third phase of the three-phase alternating current power source, and wherein the step of controlling the heating system comprises controlling the power provided by the three-phase alternating current power source.
  • the electrodes are inserted into the soil of the treatment zone and are all connected to a different phase of the three-phase alternating current, currents will start running through the soil from one electrode to the other. The resistance that the currents experience while traveling through the soil induce heat, whereby a simple and effective method is obtained for heating the soil.
  • the power provided is controlled by controlling a voltage and/or current provided by the three-phase alternating current power source to the respective electrodes.
  • the heating power that is induced in the soil can be effectively controlled in dependence of the resistance of the soil matrix in the treatment zone.
  • the electrodes are formed by metal rod-like and/or plate-like elements, which are preferably manufactured from copper, aluminium and/or steel. These electrodes are thereby relatively simple and robust, such that they can easily be inserted into the soil of the treatment zone.
  • the electrodes can also be positioned at different depths and/or in different orientations. For instance, large plate-like electrodes can be placed around the perimeter of the treatment zone, the bottom of the treatment zone and/or near the surface of the treatment zone, such that large contact surfaces between the soil and electrodes are obtained. This reduces the resistance between the electrode and the soil.
  • the method further comprises adding conductive backfilling between the electrode and the soil of the treatment zone.
  • resistance between the electrode and the soil is also effectively reduced.
  • the method comprises the step of moistening the soil, such that the conductivity of the soil can be improved for tuning the electrical resistance of the soil matrix in the treatment zone.
  • the heating system comprises a hot air injection system, wherein at least one heating unit comprises an electrical air heater for heating a flow of air and an injection member for injecting hot air into the treatment zone, wherein the step of installing said at least one heating unit in the soil comprises:
  • An alternative method for heating the soil is by injecting hot air into the ground.
  • the hot air distributes through the soil matrix, thereby gradually transferring its heat the to soil particles in the treatment zone for heating the treatment zone to the prescribed temperature range.
  • other types of heaters can also be applied, such as gas- or fuel-fired heaters.
  • the step of controlling the heating system for providing heat into the treatment zone comprises controlling the flow rate of air through the electrical heater and/or controlling the amount of heat generated by the electrical heater.
  • the flow rate and the temperature of the hot air can be regulated, such that the soil can be heated up quickly to the desired temperature by providing a high flow rate at a high temperature.
  • the flow rate and/or temperature of the hot air can be reduced, such that an energy efficient setup is obtained.
  • the heating system comprises a steam heating injection system that is arranged for injecting steam into the treatment zone, such that the soil is heated by the flow of stream that flows from the injection members.
  • said injection member is a tubular member for guiding the flow of air
  • said outlet section of the tubular member extends along at least along a part, or only along a part, of the length of the tubular member and comprises a plurality of openings in the wall of the tubular member for allowing hot air to flow into the surrounding soil.
  • the tubular member allows guiding the flow of air with relatively low resistance.
  • the outlet section over a part of the length with openings in the wall, the hot air is distributed over the soil matrix, such that a more evenly heating of the soil is obtained.
  • the hot air injection system comprises a plurality of heating units, wherein at least one of the injection members has a length different from another of the injection members.
  • a distribution of the hot air over the depth is obtained, resulting in a more evenly heating of the treatment zone.
  • the method comprises providing a heating unit in a substantially vertical, or horizontal, orientation in the treatment zone.
  • the method comprises the step of providing a cover, such as sheeting, to cover the treatment zone prior to heating the soil of the treatment zone.
  • a cover such as sheeting
  • the cover comprises thermal insulation, such that the heated soil is insulated from the varying conditions of the weather and/or varying condition due to day and night.
  • said method is performed in-situ, wherein the step of providing the treatment zone comprises:
  • the treatment zone by determining an area over which the plant material, such as roots of invasive plant species, have spread and by determining a depth of the respective area up to where the respective plant material is present.
  • said method is performed ex-situ, wherein the step of providing the treatment zone comprises: - providing a holding arrangement having walls and a bottom, such as a container, silo or reservoir, for holding soil to be processed for forming the treatment zone;
  • the holding arrangement is provided with an opening in the bottom and/or an opening in a lowermost section of the wall for draining liquid from the treatment zone.
  • drain water tends to accumulate at the bottom of the holding arrangement, the soil and water mixture in the bottom parts of the holding arrangement requires much more energy to heat up in the required time.
  • the water drains from the holding arrangement, thereby reducing this effect, such that the soil heats up more evenly throughout the holding arrangement.
  • the invention in a second aspect, relates to a system for processing soil containing plant material, such as roots of invasive plant species, to inactivate the plant material in the soil, said system comprises a heating system comprises at least one heating unit arranged for providing heat into the soil; wherein said system is arranged for performing, or arranged to be used with, the method according to any of the embodiments.
  • an (invasive) animal species that is present in the soil can be effectively inactivated by heating to a relatively low temperature, for instance in the range of 40 °C and 150 °C, for a predetermined amount of time, as is described, in relation to the plant material, in any of the embodiments described above.
  • animal species include insects such as ants, for instance big-headed ants (Pheidole pallidula), the Argentine ant (Linepithema humile), the Tapinoma nigerriumum, the Lasius neglectus, and Formicine ants such as the Plagiolepis schmitzii and the Plagiolepis pygmaea.
  • the invention thus further relates, in a third aspect, to a method of and/or system for processing soil containing invasive animal species to inactivate the species in the soil.
  • the method preferably comprises the steps of the method of processing soil containing plant material according to any of the above embodiments.
  • the method thus preferably comprises the steps of:
  • the heating system for providing heat into the treatment zone, wherein the treatment zone is heated to, and kept at, a temperature in a temperature range of 40 degrees Celsius to 150 degrees Celsius for a predetermined duration for inactivating the animal species in the soil of the treatment zone.
  • the system for processing soil containing invasive animal species comprises a heating system comprising at least one heating unit arranged for providing heat into the soil; wherein said system is arranged for performing, or arranged to be used with, the method according to any of the embodiments.
  • FIG. 1 schematically shows a cross-sectional side-view of a first embodiment according to the invention.
  • FIG. 2 schematically shows a top-view of a first embodiment according to the invention.
  • FIG. 3 schematically shows a cross-sectional side-view of a second embodiment according to the invention.
  • FIG. 4 schematically shows a cross-sectional side-view of a third embodiment according to the invention.
  • FIG. 5 schematically shows a cross-sectional side-view of a fourth embodiment according to the invention.
  • FIGS 1 and 2 the respective cross-sectional side- and top-views of a first embodiment 100 are schematically shown.
  • the figures show a volume of soil 1 comprising roots 2 of, for instance, the Japanese knotweed (or comprising an (invasive) animal species 2).
  • a root-zone 3 is indicated to show in which parts of the soil 1 the roots 2 are located.
  • the root-zone 3 typically corresponds to a treatment zone wherein the soil 1 needs to be processed to inactivate the roots 2, or any other live remains of the plant.
  • the treatment zone 3 in the current embodiment is seen to have a rectangular surface area, defined by width W1 and length LI.
  • the treatment zone 3 also has a depth dl. Note that the treatment zone 3 may have any form or shape and contains the soil 1 with roots 2 to be processed.
  • the treatment zone 3 is fitted with a heating system 101, more specifically a hot air heating system 101, for heating the soil 1 in the treatment zone 3.
  • the heating system 101 comprises a ventilator 115 for sucking in ambient air that is distributed to the respective heaters 111 of the respective heating units 110, 120 through tubes 116.
  • a central ventilator 116 is shown for providing the flow of air, each heater 111 can, for instance, also be provided with its own ventilator.
  • the flow of air is heated by the heaters 111 and guided to the injection members 112.
  • the injection member 112 is a tubular member having a first end that is arranged with the heater 111 and a second end that is arranged up to a predefined depth in the soil 1.
  • the distal end of the injection member 112 is arranged with an outlet section 114, wherein a plurality of openings is arranged in the wall of the tubular member for allowing the hot air to distribute in the soil matrix 1.
  • a first section of the injection member, the guiding section 113 comprises no openings in the wall and serves only to guide the hot air to the outlet section 114.
  • the treatment zone 3 is furthermore provided with a temperature measurement system 130 that comprises in the current embodiment a plurality of temperature sensors 131 for determining soil temperature at different locations in the treatment zone 3.
  • the temperature sensors 131 are provided between the different heating units 110, 120, in particular at substantially equal distances from the heating units 110, 120. As they are thereby located furthest from the injection members 112, the sensors 131 are expected to be at the cold-spots in the treatment zone 3. By ensuring the temperature is in the predetermined range at the cold-spots, it is expected that the remainder of the treatment zone 3 is also in the predetermined temperature range.
  • a cover 103 that preferably acts as a thermal insulation as well, is provided over the surface area of the treatment zone 3, such that heat losses are reduced.
  • the treatment zone 3 of the first embodiment is provided in an in-situ location, such that removal and transport of the contaminated soil 1 is not required, but rather the soil is left mostly undisturbed and processed on site.
  • Figure 3 schematically shows a cross-sectional side-view of a second embodiment, wherein the method is performed ex-situ, or in other words, in a dedicated treatment facility 200.
  • the heating system 101 is similar to the heating system 101 of the first embodiment 100, this also holds for the temperature measurement system 130.
  • the treatment facility 200 comprises a holding arrangement 240 having walls 241, 242 and a bottom 243 for holding the soil 1 and can be any type of suitable structure, such as a container, silo, reservoir, depot, or the like.
  • Soil 1 (which is contaminated with roots 2) is for instance excavated on site and transported to, and placed into, the holding arrangement 240.
  • the holding arrangement 240 is provided with drain holes 244, 245 for draining excess liquid, such as rain water.
  • a first drain hole 244 is provide in the bottom, whereas a second drain hole 245 is provided through a lower most section of the wall 241.
  • the treatment zone 3 is defined by the dimensions of the holding arrangement 240, in other words its width w2, length (not shown) or depth d2 of the holding arrangement 240.
  • the holding arrangement is provided with a cover 203, for instance similar to cover 103.
  • FIG. 4 schematically shows a cross-sectional side-view of a third embodiment 300, wherein the method is performed in-situ, like in the first embodiment 100.
  • the differences with the first embodiment mainly relate to the heating system 301.
  • an electrical resistance heating system 301 is applied.
  • a plurality of spaced apart electrodes 310 is shown, each comprising a metal electrode surface 311 that is inserted into the soil 1; wherein the electrodes are connected through a power line 303 to a three-phase alternating current power source 302, preferably also comprising a power controller.
  • the electrodes 310 By arranging the electrodes 310 into three groups and connecting the electrodes of the respective first, second and third group to the respective first, second and third phase of the three-phase alternating current power source 302, current starts to flow through the soil 1 from the electrodes of one group to the other groups and vice versa.
  • the heat in the soil 1 is controlled by controlling the power (through controlling the voltage and/or current provided) provided by the three-phase alternating current power source 302.
  • Figure 5 schematically shows a cross-sectional side-view of a fourth embodiment, wherein the method is performed ex-situ in a dedicated facility 400, like in the second embodiment.
  • a holding arrangement 440 is shown comprising walls 441, 442 and a bottom 443, wherein a drain hole 444 is provided.
  • the facility 400 is provided with a temperature measurement system 430, comprising a plurality of temperature sensors 431, though fewer when compared to the first, second and third embodiments.
  • the facility is arranged with an electrical resistance heating system 410, comprising three groups of at least one electrode, of which one of each group is shown in figure 5.
  • a second electrode 412, of the second group is provided along wall 441 and along a first section of bottom 443, a third electrode 413, of the third group, is provided along wall 442 and along a second section of bottom 443 and a first electrode 411, of the first group, is provided on top of the soil 1 comprising the roots 2 to be processed.
  • a cover 403 is provided on top of the first electrode 411 for insulation and/or shielding the soil 1 from excess rain water. Furthermore, the cover 403 weighted, for instance by adding clean soil on top, to put pressure on the soil 1 in the treatment zone 3, such that good contact between the electrodes 411, 412, 413 is obtained, thereby reducing electrical resistance between the electrodes 411, 412, 413 and the soil.
  • the electrodes 411, 412, 413 of the respective first, second and third group are connected to the respective first, second and third phase of the three-phase alternating current power source (not shown). By providing power, current starts to flow through the soil 1 from the electrodes 411, 412, 413 of one group to the other groups and vice versa, thereby heating up the soil in the treatment zone 3.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental Sciences (AREA)
  • Insects & Arthropods (AREA)
  • Pest Control & Pesticides (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

L'invention concerne un procédé de traitement de sol contenant des racines d'espèces végétales invasives pour inactiver les racines dans le sol, le procédé comprenant les étapes consistant à : • - fournir une zone de traitement comprenant le sol à traiter, la zone de traitement étant définie comme un volume de sol qui est défini par une surface et une profondeur ; • - fournir un système de chauffage pour chauffer le sol de la zone de traitement, le système de chauffage comprenant au moins une unité de chauffage conçue pour fournir de la chaleur dans le sol ; • - fournir ladite unité de chauffage dans le sol, de telle sorte que ladite unité de chauffage soit insérée au moins partiellement dans la zone de traitement ; et • - commander le système de chauffage pour qu'il fournisse de la chaleur dans la zone de traitement, la zone de traitement étant chauffée à une température dans une plage de température allant de 40 degrés Celsius à 150 degrés Celsius, et maintenue à cette température, pendant une durée prédéterminée pour inactiver la matière végétale dans le sol de la zone de traitement.
PCT/NL2021/050634 2020-10-23 2021-10-20 Procédé et système de traitement de sol contenant des racines d'espèces végétales invasives pour inactiver la matière végétale dans le sol WO2022086325A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2026756A NL2026756B1 (en) 2020-10-23 2020-10-23 Method and system of processing soil containing plant material, such as roots of invasive plant species, to inactivate the plant material in the soil
NL2026756 2020-10-23

Publications (1)

Publication Number Publication Date
WO2022086325A1 true WO2022086325A1 (fr) 2022-04-28

Family

ID=74592652

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2021/050634 WO2022086325A1 (fr) 2020-10-23 2021-10-20 Procédé et système de traitement de sol contenant des racines d'espèces végétales invasives pour inactiver la matière végétale dans le sol

Country Status (2)

Country Link
NL (1) NL2026756B1 (fr)
WO (1) WO2022086325A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987001560A1 (fr) * 1985-09-20 1987-03-26 Helmut Waritsch Procede et dispositif de nettoyage de substrats
US4842448A (en) * 1987-11-12 1989-06-27 Drexel University Method of removing contaminants from contaminated soil in situ
JP2001269067A (ja) 2000-03-24 2001-10-02 Rajiant:Kk 土壌加温方法およびそれに用いるハウス栽培設備
US6413399B1 (en) * 1999-10-28 2002-07-02 Kai Technologies, Inc. Soil heating with a rotating electromagnetic field
JP2020171247A (ja) 2019-04-12 2020-10-22 東亜建設工業株式会社 埋土種子の蒸気加熱処理方法およびシステム

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987001560A1 (fr) * 1985-09-20 1987-03-26 Helmut Waritsch Procede et dispositif de nettoyage de substrats
US4842448A (en) * 1987-11-12 1989-06-27 Drexel University Method of removing contaminants from contaminated soil in situ
US6413399B1 (en) * 1999-10-28 2002-07-02 Kai Technologies, Inc. Soil heating with a rotating electromagnetic field
JP2001269067A (ja) 2000-03-24 2001-10-02 Rajiant:Kk 土壌加温方法およびそれに用いるハウス栽培設備
JP2020171247A (ja) 2019-04-12 2020-10-22 東亜建設工業株式会社 埋土種子の蒸気加熱処理方法およびシステム

Also Published As

Publication number Publication date
NL2026756B1 (en) 2022-06-17

Similar Documents

Publication Publication Date Title
JP6351117B2 (ja) 農作物のハウス栽培方法及び栽培設備
KR101718682B1 (ko) 식물 근권부 냉난방 시스템
Ernstsen et al. Long-term monitoring of nitrate transport to drainage from three agricultural clayey till fields
CN105580705B (zh) 一种葡萄插条快速催根的方法
KR20140133371A (ko) 비닐하우스의 지중난방방법
WO2022086325A1 (fr) Procédé et système de traitement de sol contenant des racines d'espèces végétales invasives pour inactiver la matière végétale dans le sol
CN108353739A (zh) 一种促黄瓜深冬季节缓苗与正常生长的根区增温方法
JP2001269067A (ja) 土壌加温方法およびそれに用いるハウス栽培設備
CN106954495A (zh) 农业种植系统
JP2019030227A (ja) 農地暖房システム
KR200174579Y1 (ko) 비닐하우스용 지중가열장치
WO2009072536A1 (fr) Procédé de chauffage du sol dans une culture en serre
JP3360816B2 (ja) 土壌の熱消毒方法
KR20150115222A (ko) 매트타입 지중용 카본히터 및 매설방법
KR101770390B1 (ko) 지열을 이용한 하우스 냉난방장치
KR101043461B1 (ko) 발열선부재가 내설되는 옥상 조경시설 및 그 설치방법
CN102523778A (zh) 一种用酵素菌对新垦地土壤改良的方法
KR970008464B1 (ko) 비닐하우스의 지중난방장치
KR102488894B1 (ko) 작물 근권부 발열봉 제어시스템 및 그를 이용한 환경 조건 제어 방법
KR101629002B1 (ko) 다단계로 온도제어가 가능한 하이베드 재배용 난방 시스템
SE544891C2 (sv) Metod och kit för bekämpning av invasiva och oönskade växter
KR102037584B1 (ko) 지하수 배관을 활용한 비닐 하우스 제설 장치
CN219500248U (zh) 一种白蚁防治用仿生模型
RU2706489C1 (ru) Способ Девяткина В.Д. тепловоздушного саморегулируемого круглогодового обогрева подпочвенного слоя полей при тепловой мелиорации земель
JP2007244278A (ja) ハウス栽培の暖房方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21794428

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21794428

Country of ref document: EP

Kind code of ref document: A1