Biomembrane outdoor culture and collection device

Abstract

The invention provides a biomembrane outdoor culture and collection device. The biomembrane outdoor culture and collection device comprises a fixed seat, a length adjusting rod, a disk frame, spherical carriers, movable rods and activated carbon fiber fixing sheets, wherein one end of the length adjusting rod is fixedly arranged on the fixed seat; the other end of the length adjusting rod is fixedly connected with and provided with the disk frame; the disk frame is provided with a plurality of spherical carriers; each spherical carrier is rotatably hinged with a plurality of movable rods; and the activated carbon fiber fixing sheets are arranged on the movable rods. The extension length or depth of the activated carbon fibers can be adjusted according to actual demands; and meanwhile, by arranging the spherical carriers, the plurality of activated carbon fiber fixing sheets are installed on the circumference, thereby greatly enhancing the collection and culture efficiency and effect. The biomembrane outdoor culture and collection device is simple in structure, can not have the problem of threading rope complexation and winding, greatly facilitates the biomembrane culture and collection operations, has more uniform collection and culture effects, and enhances the monitoring and evaluation result on the water quality environment.

Description

technical field [0001] The invention relates to the technical field of environmental pollution and evaluation, in particular to a biofilm field cultivation and collection device, which belongs to the technical field of biological environment monitoring. Background technique [0002] Different substrates will have a significant impact on the community structure and function of biofilms. Biofilms on natural substrates in lakes and rivers are difficult to use for quantitative research due to the huge differences in algae and microbial structures. Therefore, in order to facilitate biological monitoring, it is necessary to cultivate and collect biofilms in the wild. At present, in the collection of biofilms in the field, manual collection of biofilms is generally adopted. The general method is to scrape natural biofilms on solid-phase substances (stems of aquatic plants, stones and gravel) at the same depth near the same position where the sampling device is arranged. biofilm, a...

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Problems solved by technology

This kind of collection efficiency is relatively low, because it is easy to have impurities when scraping, the amount of scraping is limited, the whole biofilm cannot be effectively analyzed, and it is easy to cause errors in water quality monitoring and evaluation. For this, Chinese patent CN102517194A discloses a The collection device for cultivating biofilms in the field solves the problem of cultivating and collecting biofilms in the field. However, the device adopts a rope-threading method, which has a complicated structure, and the ropes are easy to entangle with each other, and it is also easy to entangle other substances in the water. It is very inconvenient. Moreover, during the collection process, due to the complex structure and many ropes, it is easy to cause the biofilm to be pulled off by the rope, which affects the collection efficiency and effect of the biofilm.

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