JP2691470B2 - Pesticide degradable drain material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an agricultural chemical degradable drain material used in golf courses and farms.

[Conventional technology]

Conventionally, in order to efficiently manage the growth of lawns at golf courses, a fiber mat made of water-absorbent resin or fibers is laid on the ground several tens of centimeters to several meters underground to give the soil water-retaining ability. It prevented the rapid evaporation of water, prevented the grass from wilting, and reduced the frequency of watering.

[Problems to be solved by the invention]

Recently, pesticides have been sprayed on the golf course to control turf pests and weeds. This pesticide penetrates the fiber mat and flows into groundwater or flows into rivers to pollute water resources. That is, pesticide pollution is a problem.

For this reason, methods of mixing activated carbon into soil have been investigated, but it is difficult to completely adsorb pesticides. Further, a closed system in which the pesticides sprinkled on the green is not exposed outside the golf course is also being studied, but there is a drawback that the device becomes large and the cost becomes very high.

[Means for solving the problem]

The present invention has been made in view of the above problems, and a cylinder in which an adsorbent substance, a mixture of an agrochemical degrading microorganism is supported and adhered to a cylindrical nonwoven fabric, and an activated carbon fiber is admixed with the agrochemical degradable drain material. The present invention provides a pesticide-degradable drain material in which pesticide-degrading microorganisms are carried and attached to a sheet-shaped nonwoven fabric.

[Action]

When a drain material consisting of a cylindrical non-woven fabric supporting and adsorbing adsorbents and pesticide-degrading microorganisms is buried underground in the green of a golf course, when the pesticide dissolved by irrigation or rainwater penetrates into the ground, The cylindrical non-woven fabric absorbs sewage containing water, and the absorbed pesticide is detoxified by degrading the pesticide-degrading microorganisms carried or attached to the cylindrical non-woven fabric.

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[Example 1] Fig. 1 is a schematic cross-sectional view showing a buried state of an agrochemical degradable drain material showing an embodiment of the present invention, and (1) is a cylindrical agricultural chemical degradable drain material. .

The drain material (1) is synthetic fiber (2), preferably water absorption,
A card cloth web made of a mixture of sweat-absorbing three-dimensional crimped polyester fiber 6d40% and water-absorbent polyester fiber 2d60% with a trilobal cross section is preliminarily fixed by a temporary needle punch between two synthetic fiber mats. , Adsorbed substances (3)
For example, zeolite or charcoal powder and pesticide-degrading microorganisms (4) Pseudomonas bacteria grown in culture (Ps
eudomonas), actinomycete (Streptomyces), filamentous fungus (P
genus enicillium), genus Trichoderma, genus Aspergillus, Coryneb
After a predetermined amount of a mixture of microorganisms selected from degrading microorganisms for herbicides and insecticides such as actrium, Absidia, Arthrobacter, etc., is sprayed and laminated in a sandwich, a cylindrical non-woven needle punch machine Thus, the laminated fiber mats are entangled with each other to form a cylindrical non-woven fabric, and the adsorbent (3) and the agricultural chemical decomposing microorganism (4) are supported in the interstices between the fibers.

In addition to the above microorganisms, root knot fungus, photosynthetic bacteria, Bacillus subtilis,
Bacteria that promote plant growth such as Azotobacter and nitrifying bacteria may be mixed and used.

In addition to the above fungi, by adding mature compost and minerals that serve as nutrients for the fungi, it proliferates effective microorganisms in the soil, suppresses the growth of harmful microorganisms, and improves the water retention, air permeability, and water permeability of the soil. Can be improved.

The pesticide-degradable drain material (1) thus formed is buried in the soil (5) toward the drainage port during the green construction of the golf course, and the top of the drain material is covered with the soil (6) sterilized as cover soil. , Used by planting a lawn (7).

Greens created as described above are sprayed with insecticides and herbicides used for the prevention of daily pests on lawns, and the pesticides of the insecticides and herbicides that have penetrated the soil are gradually decomposed by irrigation. Adsorbent (3) for the drainage material (1)
Are adsorbed on and gradually decomposed by the pesticide-degrading microorganisms (4) to be rendered harmless.

At the same time, since the green is sufficiently drained, the lawn can be well grown.

[Example 2] FIG. 2 is a schematic cross-sectional view showing an embedding state of an agrochemical degradable drain material showing another example of the present invention, and (8) is a cylindrical agricultural chemical degradable drain material. is there.

The drain material (8) is synthetic fiber (2), preferably water absorption,
A random web formed of a mixed fiber of sweat-absorbing three-dimensional crimped polyester fiber 6d30% and water-absorbent polyester fiber 2d40% having a trilobal cross section and activated carbon fiber (9) 2d30% was preliminarily preliminarily tentatively needle-punched. Between the two fixed fiber mats, pesticide-degrading microorganisms (4), for example, Pseudomonas spp.
treptomyces), filamentous fungi (genus Penicillium), Trichoder
ma genus, Aspergillus genus, Corynebactrium genus, Absidia genus, Arth
A predetermined amount of a mixture of microorganisms selected from degrading microorganisms for herbicides such as robacter and insecticides is sprayed and laminated in a sandwich form, and then between the laminated fiber mats by a cylindrical non-woven needle-punching machine. It is formed by being entangled to form a cylindrical non-woven fabric, and the pesticide-degrading microorganisms (4) are supported in the fiber gaps.

The pesticide degradable drain material (8) thus formed is buried in the soil (5) toward the drainage port when the golf course is formed into a green, and is covered with the soil (6) sterilized as cover soil above the soil. , Lawn (7) is planted and used.

In the above examples, polyester fiber was used as the fiber used for the base material non-woven fiber mat constituting the agricultural chemical degradable drain material. For example, nylon, polyvinyl alcohol, rayon, polyurethane, polyvinylidene chloride, cotton, acetate, polypropylene, hemp. Etc. can be used, and those having hydrophilicity are preferable, but not particularly limited.

In addition, the cross-sectional shape of these fibers is circular, oval,
Various irregular cross-sections such as flat, star-shaped, Y-shaped, and triangular have good results for the attachment of microorganisms.

Cylindrical nonwoven fabric using the above fibers are used in the form of a random web or a cross web, the web is supplied to a cylindrical nonwoven fabric forming needle punch machine, by performing needle punching while forming into a cylindrical shape, A cylindrical non-woven fabric is formed.

The adsorbing substance and the pesticide-degrading microorganisms are carried and attached to the cylindrical non-woven fabric thus formed by, for example, being pre-dispersed between two provisional needle-punched non-woven fabrics and then further needle-punched from above and below. One piece of non-woven fabric is integrated and the integrated non-woven fabric is supplied to a needle punching machine for forming a cylindrical non-woven fabric to form a cylindrical non-woven fabric, or after the cylindrical non-woven fabric is formed in advance, pectin, polyacrylamide, alginic acid After fixing or impregnating or spraying with a fixing agent such as calcium, polyvinyl alcohol, cellulose nitrate, cellulose acetate or the like, or other commonly used resin binder, Degradation of pesticides by spraying mixed powder and granules onto the fiber surface in the interfiber spaces It is possible to form the drain material of the tubular nonwoven fabric.

In addition, as the adsorbent for adsorbing pesticides, charcoal, activated carbon,
Shirasu balloon, perlite, zeolite, quartz porphyry,
Vermiculite, alumina, aluminosilicate, diatomaceous earth, acid clay, water absorbent resin, etc. are used.

Further, a fibrous adsorbing substance can be used as the adsorbing substance, and preferably activated carbon fibers are made of nylon, polyester, polyvinyl alcohol, rayon, polyurethane,
Used by mixing with synthetic fibers such as polypropylene.

〔The invention's effect〕

By using the pesticide degradable drain material configured as described above, the present invention can eliminate pesticide contamination of groundwater, rivers, reservoirs, etc. due to pesticide spraying on golf courses and farms.

In addition, when laying on a golf course, a farm, etc., it is only necessary to place several to several tens of drain material in the soil and cover it with soil at the time of construction. As a result, the pesticide that has penetrated into the soil is adsorbed by the adsorbent, decomposed by the pesticide-degrading microorganisms, and only the detoxified water is drained through the cylindrical drain material. Moreover, the invention has an excellent effect that the effect of recycling microorganisms can be maintained for a long period of time.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing an embodiment of the present invention, and FIG. 2 is a schematic sectional view showing another embodiment of the present invention. (1) (8) …… Agricultural chemical degradable drain material (2) …… Synthetic fiber (3) …… Adsorbed material (4) …… Agrochemical degrading microorganisms (5) (6) …… Soil (7) …… Lawn (9) …… Activated carbon fiber

Claims (2)

(57) [Claims] 1. A pesticide-degradable drain material, characterized in that a mixture of an adsorbent and a pesticide-degrading microorganism is carried and adhered to a cylindrical nonwoven fabric. 2. A pesticide-degrading drain material, characterized in that a pesticide-degrading microorganism is carried and adhered to a cylindrical non-woven fabric mixed with activated carbon fibers as an adsorbent.