JPH0548116B2 - - Google Patents

Description

Detailed Description of the Invention The present invention provides a structure for a support (hereinafter referred to as a microorganism carrier) for colonizing and propagating microorganisms, which is used when catalytically utilizing the activity of microorganisms to cause various biochemical reactions. Regarding.

In known microbial carriers, carriers in which loops of synthetic resin threads are planted around a rod-shaped metal core facing outward are often used. However, in carriers with such a structure, microorganisms colonized in the loops near the metal core die early due to lack of oxygen, making it difficult to maintain their ability as collateral for a long period of time. (Special application 1986-
142655 Specification) In order to improve such defects, the present inventors
Although it has been proposed to transform the entire structure into a spiral shape under specific conditions, it is not possible to completely eliminate the drawbacks arising from the structure itself as described above.

The present invention is a tape in which a large number of loop-like yarns are planted on one side, and the loop yarn-planted surface is placed outside, and a distance is provided between each helix to form and maintain a coil. It facilitates the flow of liquid to each part of the tape thread, which is the essential content of the support for the colonization and proliferation of microorganisms, and also allows the liquid to come into contact with the back side of the tape so that it can be generated on the front and back sides of the tape. In addition, the diameter of the carrier and the distance between adjacent helices can be set as needed without being limited by the thickness and shape of the core, so that the microbial community can continue to settle in the treatment tank. The loop yarn installation density can be arbitrarily adjusted.

The illustrated embodiment will be described below.

Figure 1 shows the simplest method of manufacturing the carrier of the present invention, in which a large number of loops made of multifilament of viteridene chloride thread are arranged around the outer periphery of a metal cylinder T in which a heating element (not shown) is installed. The back side of a tape 1 made of viteridene chloride on which threads 2 are planted is wound into a coil shape at intervals while maintaining tension. In this way, each of the planted loop threads 2 is developed radially around the cylinder T as an axis. When the cylinder T is heated to a required temperature (approximately 70° C. or higher in the case of vinylidene chloride) while maintaining this state, the tape 1 softens or partially melts. After the tape 1 is sufficiently heated to the extent that it does not lose its original shape, the heating is stopped and the tape is cooled. Rapid cooling may be applied if necessary. In this way, a coiled carrier having an inner diameter of a cylinder T as shown in FIG. 2 can be obtained. Such heating forming means is most simple and useful when the tape 1 itself or the tape 1 and the loop yarn 2 are made of thermoplastic material such as synthetic resin fiber.

However, if the tape or loop material is not actually suitable for heat forming, if a small amount of different diameters are required, or if the spacing between helices needs to be adjusted appropriately, then A metal or other filament, such as an aluminum filament 3, which can be deformed at room temperature or below the softening point or melting point of a tape or loop filament, is fixed to the back side of the tape 1, and the tape 1 is heated or not heated together with the filament. Alternatively, as shown in FIG. 4, a similar filament can be passed along the tape surface inside the loop filament 2, and while maintaining close contact with the tape 1 surface, it can be coiled, for example. It can also be coiled by surrounding it in a cylinder T as shown in Figure 1. Of course, in the above case, heat molding can also be used if the material allows.

The advantage of using such a tape 1 together with the filament 3 that can be plastically deformed without using high temperatures is that the carrier of the present invention can be obtained with any diameter and pitch changeable after molding without special equipment. be.

As explained above, the present invention improves the flow of the treatment liquid over each part of the loop thread that is the microorganism support, thereby promoting the colonization and proliferation of microorganisms, and also because the treatment liquid is constantly in contact with the back surface of the tape. ,
It is possible to supply the necessary nutrients to the microorganisms that colonize the area, which greatly enhances its ability compared to known carriers. This tape-shaped microorganism carrier is extremely efficient in that the fiber density arrangement can be freely selected.

[Brief explanation of drawings]

FIG. 1 shows an example of a method for manufacturing the tape-shaped microbial carrier of the present invention. FIGS. 2 to 4 A and 4 B show specific examples of the carrier of the present invention. In the figure, 1 is tape, 2, 2 ⁿ is loop thread, 3
is a filament, and T is a heating cylinder.

Claims (1)

[Claims] 1. A microorganism carrier characterized in that a tape having a large number of loop threads planted on one side is formed in a spiral shape with the loop threads set on the outside and intervals provided.