Reservoir box dam periphytic algae collecting device with concrete bricks as artificial matrix

Abstract

The utility model discloses a reservoir box dam periphytic algae collecting device with concrete bricks as artificial matrixes. The reservoir box dam periphytic algae collecting device comprises a sampling plate with the artificial matrixes, a connecting rope and a shore side fixing rod. The artificial matrix adopts concrete bricks similar to the material of the reservoir box dam, so that the adhesion growth condition of the periphytic algae of the reservoir box dam can be simulated to the greatest extent, and the periphytic algae can be accurately quantified and qualitative. One end of the connecting rope is connected with the sampling plate, and the other end is connected with the shoreside fixing rod; a plurality of universal wheels are mounted at the bottom of the sampling plate, so that the sampling plate can slide to the deep part of the reservoir, the sliding distance is controlled through the length of the connecting rope, and the other end of the connecting rope is fixed on a shoreside fixing rod until the sampling plate reaches a set depth. The device can accurately quantify and qualify periphytic algae at any depth of the box dam of the reservoir, is simple to manufacture and convenient to operate, and is beneficial to daily monitoring of periphytic algae of the reservoir.

Description

Technical Field

[0001] The utility model belongs to the technical field of ecological environment monitoring, and in particular relates to a reservoir dam algae collection device using concrete bricks as artificial substrates. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] Epiphytic algae are algae that live on the surface of water matrix (such as rocks, soil, aquatic plants, underwater structures, etc.). As primary producers of aquatic ecosystems, they can sensitively respond to changes in water environment conditions. In recent years, in order to ensure drinking water safety, the water quality of reservoirs in many places has been greatly improved, the density of phytoplankton growing in the upper and middle layers of water bodies has decreased, and the transparency of water bodies has increased. Studies have shown that increased water transparency and global warming can provide a more suitable environment for the growth of epiphytic cyanobacteria growing on reservoir dams and bottoms, and the overall productivity of water bodies has a trend of migrating from phytoplankton to epiphytic algae. However, some typical epiphytic algae such as benthic filamentous cyanobacteria (sheath filamentous algae, oscillating algae, pseudo-anabaena, etc.) will produce harmful metabolites such as algae toxins and odor substances and release them into the water body. The excessive reproduction of epiphytic algae will endanger the health of water ecology and water supply safety. Therefore, the collection and detection of epiphytic algae samples is an indispensable task in the daily water quality monitoring of reservoirs.

[0004] At present, the collection and detection of algae on reservoir dams has the following problems:

[0005] 1. Algae collection mainly collects algae living on natural substrates such as underwater sediments, rocks, wood or plants, but these natural substrates vary in shape and size, making it difficult to accurately measure the growth area of ​​algae and unable to accurately quantify. There are also some artificial substrates for collecting algae in the prior art, but most of them are made of wood blocks or glass slides, which are very different from the materials of the reservoir dam and the bottom, and it is difficult to truly reflect the situation of algae in the reservoir (including algae density and population structure).

[0006] 2. The collection of natural or artificial matrices can only be done on the surface of the water body that can be touched by the sampling personnel (within 1.5 meters). The algae in the deep layer of the reservoir (several meters to tens of meters) need to be collected by divers or ships with core samplers, which requires strong professional capabilities and has low collection efficiency, and is not suitable for daily monitoring. However, the algae in the deep layer of the reservoir also need to be paid attention to. For example, the water intake of many drinking water plants comes from the middle and lower parts of the reservoir. The massive reproduction of benthic algae and the release of metabolites will cause the water quality of the water plant to deteriorate, increase the load of the water treatment unit, and affect the safety of water supply and economic benefits. Utility Model Content

[0007] The utility model aims to provide a reservoir dam algae collection device using concrete bricks as an artificial matrix, which can achieve accurate quantification and qualitative analysis of algae within a range of several meters to tens of meters underwater, and has the characteristics of simple structure and convenient operation.

[0008] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0009] In the first aspect, an embodiment of the utility model provides a device for collecting algae grown on a reservoir dam using concrete bricks as an artificial matrix, comprising a sampling plate provided with an artificial matrix, a connecting rope and a shore fixing rod, wherein one end of the connecting rope is connected to the sampling plate, and the other end is connected to the shore fixing rod; a plurality of universal wheels are installed at the bottom of the sampling plate; the sampling plate is placed at a set depth along the reservoir dam through the connecting rope and the universal wheels.

[0010] As a further technical solution, a plurality of grooves are arranged on the upper surface of the sampling plate, the size of the artificial matrix matches that of the grooves, and the artificial matrix is ​​embedded in the grooves.

[0011] As a further technical solution, the plurality of grooves are distributed in a rectangular array on the upper surface of the sampling plate.

[0012] As a further technical solution, the artificial matrix is ​​made of the same material as the reservoir dam, namely concrete bricks.

[0013] As a further technical solution, a lifting ear is fixedly mounted on one end surface of the sampling plate, and one end of the connecting rope is connected to the lifting ear.

[0014] As a further technical solution, the sampling plate is made of stainless steel and has a rectangular plate structure.

[0015] As a further technical solution, four universal wheels are provided and fixedly mounted at four corner positions of the bottom surface of the sampling plate.

[0016] As a further technical solution, the multiple artificial matrices are numbered in sequence.

[0017] As a further technical solution, the length of the connecting rope is adjusted according to the position of the sampling plate at the depth of the reservoir dam.

[0018] As a further technical solution, the shore fixing pole is an electric pole or a positioning pole arranged on the shore of the reservoir.

[0019] The beneficial effects of the above-mentioned embodiments of the utility model are as follows:

[0020] The utility model provides a reservoir dam attached algae collection device using concrete bricks as an artificial matrix. Concrete bricks with a material similar to that of the reservoir dam are used as an artificial matrix for the growth of attached algae, which can simulate the attachment and growth of algae on the reservoir dam to the greatest extent. The material and area of ​​the concrete bricks are fixed, and the attached algae can be accurately quantified and qualitatively analyzed.

[0021] The reservoir dam algae collection device provided by the utility model with concrete bricks as artificial matrix has a simple structure and convenient sampling compared with other existing algae collection devices. Algae of any depth can be collected. The bottom of the sampling plate is provided with universal wheels to slide into the depth of the reservoir. The depth of the sampling plate can be adjusted by a connecting rope fixed at one end on the shore. When sampling, it is only necessary to stand on the shore to pull the device out of the water, remove the concrete bricks, and the device can continue to slide into the water for long-term sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0023] Figure 1 It is a front view of the reservoir dam algae collection device using concrete bricks as an artificial matrix according to the utility model;

[0024] Figure 2 It is a top view of the reservoir dam algae collection device using concrete bricks as an artificial matrix of the utility model;

[0025] Figure 3 It is a cross-sectional view of a sampling plate of a reservoir dam algae collection device using concrete bricks as an artificial matrix according to the utility model;

[0026] Figure 4 It is a schematic diagram of the reservoir dam algae collection device using concrete bricks as an artificial matrix when in use;

[0027] Figure 5 The utility model device is used to collect data on the density and population structure of algae grown on wood blocks and concrete bricks as artificial substrates.

[0028] The schematic diagram is for illustrative purposes only;

[0029] Among them, 1. Artificial matrix; 2. Sampling plate; 3. Universal wheel; 4. Connecting rope; 5. Shore fixing pole. DETAILED DESCRIPTION

[0030] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0031] Example 1

[0032] In a typical implementation of the present invention, Figure 1-4 As shown, a device for collecting algae grown on a reservoir dam using concrete bricks as an artificial matrix is ​​provided, comprising a sampling plate 2 provided with an artificial matrix 1, a connecting rope 4 and a shore fixing rod 5, wherein one end of the connecting rope 4 is connected to the sampling plate 2, and the other end is connected to the shore fixing rod 5; a plurality of universal wheels 3 are installed at the bottom of the sampling plate 2; the sampling plate 2 is placed at a set depth along the reservoir dam through the connecting rope 4.

[0033] Specifically, the sampling plate 2 is made of stainless steel and is a rectangular plate structure; a plurality of grooves are arranged on the upper surface of the sampling plate 2, and the plurality of grooves are distributed in a rectangular array on the upper surface of the sampling plate 2; the artificial matrix 1 matches the size of the groove, and the artificial matrix is ​​embedded in the groove to prevent the artificial matrix from falling off the sampling plate when the sampling plate 2 slides on the reservoir dam.

[0034] In this embodiment, the artificial substrate 1 is made of the same material as the reservoir dam. For example, concrete bricks similar to the material of the reservoir dam can be used to simulate the attachment and growth of algae on the reservoir dam to the greatest extent. The material and area of ​​the concrete bricks are fixed, and the algae can be accurately quantified and qualitatively analyzed. For example, square bricks of 10×10 cm in size can be used.

[0035] In this embodiment, four universal wheels 3 are provided, which are respectively fixedly installed at four corner positions of the bottom surface of the sampling plate 2. The universal wheels can enable the sampling plate to slide to the depth of the reservoir dam. Furthermore, by using universal wheels, the sliding of the sampling plate 2 is more flexible.

[0036] In this embodiment, a lifting lug is fixedly mounted on one end face of the sampling plate 2, and one end of the connecting rope 4 is connected to the lifting lug to achieve the connection between the connecting rope 4 and the sampling plate 2. Furthermore, the length of the connecting rope 4 is adjusted according to the position of the sampling plate 2 at the depth of the reservoir dam. Under the joint action of the universal wheel 3 and the connecting rope 4, the sampling plate 2 can reach a vertical depth of several meters to tens of meters underwater.

[0037] In this embodiment, the shore fixing rod 5 can be any fixed object such as an electric pole, a positioning rod, etc. on the shore of the reservoir to which the connecting rope can be tied.

[0038] When sampling, multiple artificial substrates can be numbered in sequence, and different time periods can be selected to place artificial substrates with different numbers on the sampling plate, thereby increasing the diversity of algae sample collection.

[0039] The method for using the reservoir dam algae collection device using concrete bricks as an artificial matrix provided in this embodiment is as follows:

[0040] The artificial matrix is ​​embedded into the groove on the sampling plate, and then one end of the connecting rope is connected to the sampling plate; the sampling plate is placed on the reservoir dam, and the sampling plate with the artificial matrix is ​​slid into the depth of the reservoir along the reservoir dam by the gravity of the sampling plate itself and the slope of the reservoir dam under the action of the universal wheel, and at the same time, the connecting rope of corresponding length is lowered; when the sampling plate reaches the position where sampling is required, the other end of the connecting rope is fixed to the fixed rod on the shore.

[0041] After a period of time, algae similar to those on the reservoir dam will appear on the artificial substrate on the sampling plate. After 1-2 months, the algae density and population structure on the artificial substrate can be basically the same as those on the reservoir dam.

[0042] When sampling is needed, one only needs to stand on the shore, pull the sampling plate out of the water, remove the artificial substrate, replace it with a new artificial substrate, lower the connecting rope, and the device can continue to slide into the water for long-term sampling, and the removed artificial substrate 1 with attached algae can be sent for inspection in time.

[0043] The reservoir dam attached algae collection device with concrete bricks as artificial matrix provided in this embodiment can accurately quantify and qualitatively detect attached algae at any depth of the reservoir dam. The device is simple to manufacture and easy to operate, which is conducive to daily monitoring of attached algae.

[0044] Figure 5This is a data chart of the algae density and population structure collected by the device of the utility model, comparing two artificial matrices, wood blocks and concrete bricks. The monitored reservoir dam is a prefabricated concrete interlocking block, and the water depth of the reservoir can reach up to 12 meters. The connecting rope length designed in this embodiment is 36 meters. According to the slope of the reservoir dam of 1:2.75, the sampling plate can slide along the reservoir dam to a vertical depth of about 12 meters underwater. The sampling device was placed for one month and then sampled. After 5 months of monitoring, the density and population structure of the algae attached to the wood blocks and concrete bricks were significantly different. The density of algae attached to the wood blocks is significantly lower than that on the bricks. Diatoms are the main algae on the wood blocks, and cyanobacteria are the main algae on the bricks. The density of cyanobacteria attached to the wood blocks is less than 600,000 / cm2, which is much lower than the density of cyanobacteria attached to the bricks (650,000-6.25 million / cm2). It shows that there is a risk of over-growth of cyanobacteria attached to the reservoir dam, and this risk will be ignored when using common wood block matrix monitoring. The monitored algae are mainly filamentous algae that produce toxins and odors. The excessive growth of these algae will have an adverse impact on water ecology and water quality. Accurate quantitative and qualitative monitoring of algae on reservoir dams is very important.

[0045] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A reservoir dam algae collection device using concrete bricks as an artificial matrix, characterized in that: The invention comprises a sampling plate provided with an artificial matrix, a connecting rope and a shore fixing rod, wherein one end of the connecting rope is connected to the sampling plate, and the other end is connected to the shore fixing rod; a plurality of universal wheels are installed at the bottom of the sampling plate; and the sampling plate is placed at a set depth along the reservoir dam through the connecting rope and the universal wheels.

2. The reservoir dam algae collection device using concrete bricks as an artificial matrix as claimed in claim 1, characterized in that: A plurality of grooves are arranged on the upper surface of the sampling plate, the size of the artificial matrix matches that of the grooves, and the artificial matrix is ​​embedded in the grooves.

3. The reservoir dam algae collection device using concrete bricks as an artificial matrix as claimed in claim 2, characterized in that: The plurality of grooves are distributed in a rectangular array on the upper surface of the sampling plate.

4. The reservoir dam algae collection device using concrete bricks as an artificial matrix as claimed in claim 1, characterized in that: The artificial matrix is ​​made of the same material as the reservoir dam, that is, concrete bricks.

5. The reservoir dam algae collection device using concrete bricks as an artificial matrix as claimed in claim 1, characterized in that: A lifting ear is fixedly mounted on one end surface of the sampling plate, and one end of the connecting rope is connected to the lifting ear.

6. The reservoir dam algae collection device using concrete bricks as an artificial matrix as claimed in claim 1, characterized in that: The sampling plate is made of stainless steel and has a rectangular plate structure.

7. The reservoir dam algae collection device using concrete bricks as an artificial matrix as claimed in claim 1, characterized in that: There are four universal wheels, which are respectively fixedly mounted at four corner positions of the bottom surface of the sampling plate.

8. The reservoir dam algae collection device using concrete bricks as an artificial matrix as claimed in claim 1, characterized in that: The plurality of artificial substrates are numbered in sequence.

9. The reservoir dam algae collection device using concrete bricks as an artificial matrix as claimed in claim 1, characterized in that: The length of the connecting rope is adjusted according to the position of the sampling plate at the depth of the reservoir dam.

10. The reservoir dam algae collection device using concrete bricks as an artificial matrix as claimed in claim 1, characterized in that: The shore fixing pole is a telephone pole or a positioning pole arranged on the shore of the reservoir.

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