Adjusting type wastewater in-situ biotoxicity exposure and detection zoning device

Abstract

The utility model belongs to the technical field of sewage toxicity exposure and detection, and particularly relates to an adjustable wastewater in-situ biological toxicity exposure and detection zoning device which comprises a detection shell, a partition plate which is detachable from the detection shell is arranged in the detection shell, and the interior of the detection shell is divided into a detection area and a biological chronic toxicity exposure area through the partition plate. An equipment storage box is arranged above one side of the detection shell, an aerator and a heating rod device are symmetrically placed in the storage box, and the aerator and the heating rod device penetrate through wire holes formed in the storage box through wires respectively to be connected with an external power source; the aeration machine conveys oxygen to the bottoms of the concentration detection areas and the biological chronic toxicity exposure areas through hoses, and a heating rod device of the aeration machine transmits a heat source to the corresponding detection areas or the biological chronic toxicity exposure areas through small holes in the bottom of the storage box; according to the utility model, simultaneous exposure of acute toxicity and chronic toxicity of wastewater organisms can be realized, and acute toxicity data and chronic toxicity biological samples can be obtained.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater toxicity exposure and detection technology, specifically relating to a zoning device for in-situ biological toxicity exposure and detection of regulated wastewater. Background Technology

[0002] For complex, highly toxic industrial wastewater, current methods primarily select small fish and large daphnia as test organisms for laboratory exposure to obtain biotoxicity data. Traditional toxicity testing is difficult to separate from laboratory biological exposure experiments; the exposure environment cannot be moved from the laboratory to the wastewater discharge site. Real-time detection of acute toxicity and acquisition of biological samples for chronic toxicity testing are limited by exposure conditions. Improving toxicity exposure conditions and developing novel exposure detection devices are of great significance for the convenience and accuracy of in-situ exposure of wastewater biotoxicity.

[0003] Traditional biotoxicity exposure is primarily conducted in laboratories, often using small glass tanks or other glass containers as exposure devices. Wastewater samples are typically collected in advance. While this method is convenient, it requires large-scale wastewater sampling, artificial creation of exposure conditions, reliance on external tools and manual adjustments, and the haphazard placement of equipment such as aerators and heating rods. Furthermore, if chronic toxicity effects need to be investigated simultaneously, even larger experimental space and glass exposure tanks are required. Limited experimental space prevents timely implementation, wasting manpower and resources. In addition, laboratory wastewater exposure must be conducted as quickly as possible to accurately reflect the wastewater's toxicity at the time of sampling; otherwise, the wastewater may undergo putrefaction, affecting the accuracy of the exposure experiment.

[0004] Currently, existing wastewater biotoxicity exposure experiments lack consideration for influent water exchange; that is, existing wastewater exposure devices lack influent and drainage systems. Typically, wastewater is collected directly for exposure, and water exchange during exposure is mainly done manually, which is time-consuming and labor-intensive. This approach cannot achieve in-situ exposure, real-time monitoring of acute wastewater toxicity, or acquisition of biological samples for chronic toxicity exposure. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a zoning device for in-situ biological toxicity exposure and detection of wastewater.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a regulating wastewater in-situ biological toxicity exposure and detection zoning device, comprising a detection shell, wherein a detachable partition is provided inside the detection shell, and the partition divides the interior of the detection shell into a detection zone and a biological chronic toxicity exposure zone. Multiple baffles are provided in the detection zone, and the baffles divide the detection zone into a raw water zone and multiple concentration detection zones. The upper and lower sections of the raw water zone are respectively connected to a wastewater inlet pipe and an outlet pipe. Each concentration detection zone is connected at its upper end to a wastewater inlet pipe and a tap water inlet pipe, and at its lower end to an outlet pipe. The upper and lower ends of the biological chronic toxicity exposure zones are respectively connected to a wastewater inlet pipe and an outlet pipe.

[0007] An equipment storage box is provided on one side of the detection housing. An aerator and a heating rod are symmetrically placed in the storage box. The aerator and the heating rod are connected to an external power source through wires passing through wire holes provided on the storage box. The aerator delivers oxygen to the bottom of each detection concentration zone and the biological chronic toxicity exposure zone through a hose. The heating rod transfers heat to the corresponding detection zone or biological chronic toxicity exposure zone through a small hole at the bottom of the storage box.

[0008] This utility model further defines the technical solution as follows:

[0009] Preferably, a cover plate is provided on the detection housing, on which a light source and a display screen controller are symmetrically arranged, and the two are electrically connected, corresponding to the detection area and the biological chronic toxicity exposure area, respectively.

[0010] Preferably, the partition is engaged with a partition slot located inside the detection housing, and the railing is engaged with a railing slot located inside the detection area.

[0011] Preferably, a net is installed at the bottom of the raw water area and multiple concentration detection areas. The net is cylindrical, with its outer fixed edge made of stainless steel, and its two sides are fixed to bolts installed on both sides of the area by ropes.

[0012] Preferably, flow control valves are installed on the wastewater inlet pipe 1, wastewater inlet pipe 2, wastewater inlet pipe 3, outlet pipe 1, outlet pipe 2, outlet pipe 3, and tap water inlet pipe.

[0013] Preferably, a scale line is provided on the area corresponding to the partition on the front side of the detection housing.

[0014] Preferably, temperature sensors are installed in both the detection zone and the biological chronic toxicity exposure zone.

[0015] This utility model has the following beneficial effects:

[0016] The size of this utility model device is determined according to the actual area, making it portable and solving the problems of wastewater sampling and sample preservation, while reducing the area occupied during exposure. This utility model uses a device storage box, light source, and temperature sensor to conveniently adjust the light and temperature, solving the problem of scattered equipment for providing detection conditions. The detection conditions can be adjusted in real time. At the same time, flow control valves are installed on each inlet and outlet water pipe to adjust the inlet and outlet water flow, realizing in-situ toxicity exposure and detection of wastewater through dynamic retention.

[0017] This invention achieves gradient zoning of acute toxicity concentrations through the combination of baffle slots and baffles; and achieves zoning of toxicity detection through partition slots and partitions. This allows for simultaneous exposure to acute and chronic toxicity of wastewater organisms, obtaining acute toxicity data and chronic toxicity biological samples. Furthermore, the partitions and baffles can be removed to expand the detection space, enabling single exposure or detection. This improves detection efficiency based on separate exposure to acute and chronic toxicity of wastewater organisms. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Reference Figure 1 This embodiment provides an adjustable wastewater in-situ biotoxicity exposure and detection zoning device, including a detection housing 1, a partition 2 disposed inside the detection housing, the partition 2 engaging with a partition slot 3 disposed at the bottom of the detection housing, and the partition dividing the interior of the detection housing into a detection zone 4 and a biotoxicity exposure zone 5. Temperature sensors 28 are respectively disposed in the detection zone and the biotoxicity exposure zone. Scale lines 26 are disposed on the front side of the detection housing corresponding to the area of ​​the partition.

[0021] The detection area is equipped with four baffles 6. Each baffle is engaged with a baffle slot 7 inside the detection area. The baffles divide the detection area into a raw water area 8 and four concentration detection areas, namely concentration area I 9, concentration area II 10, concentration area III 11 and concentration area IV 12.

[0022] A net 25 is set at the bottom of the raw water area and multiple concentration detection areas. The net is cylindrical, and its outer fixed edge is made of stainless steel. Both sides are fixed to bolts 29 set on both sides of the area by ropes.

[0023] Wastewater inlet pipe 11 and outlet pipe 12 are connected to the upper and lower sections of the raw water zone 8, respectively. Wastewater inlet pipe 2 13 and tap water inlet pipe 14 are connected to the upper end of each concentration detection zone, and outlet pipe 2 15 is connected to the lower end of each zone. Wastewater inlet pipe 3 16 and outlet pipe 3 17 are connected to the upper and lower ends of the biological chronic toxicity exposure zone, respectively.

[0024] Flow control valves 18 are installed on wastewater inlet pipe 11, wastewater inlet pipe 2 13, wastewater inlet pipe 3 16, outlet pipe 1 12, outlet pipe 2 15, outlet pipe 3 17 and tap water inlet pipe.

[0025] An equipment storage box 19 is provided on the upper side of one side of the detection housing. An aerator 20 and a heating rod device 21 are symmetrically placed in the storage box 19. The aerator 20 and the heating rod device 21 are connected to an external power source through wires passing through wire holes provided on the storage box 19. The aerator 20 delivers oxygen to the bottom of each detection concentration zone and the biological chronic toxicity exposure zone through a hose. Its heating rod device transfers heat to the corresponding detection zone or biological chronic toxicity exposure zone through a small hole 27 at the bottom of the storage box.

[0026] A cover plate 22 is provided on the detection housing. A light source 23 and a display controller 24 are symmetrically arranged on the cover plate. The two are electrically connected and correspond to the detection area and the biological chronic toxicity exposure area, respectively.

[0027] Before starting the relevant experiment, connect the control power supply according to the experimental requirements. Place the aerator and heating rod device in the equipment storage box. Connect the power supply through the wire hole 25 to turn on the aerator. Deliver oxygen to each detection concentration area and biological chronic toxicity exposure area through the hose. Adjust the temperature of the heating rod device through the small hole. Place the temperature sensor 28 in the detection area and exposure area. Set the light source light and dark time and display the real-time temperature through the display controller 24. If a single detection or exposure is required, turn on the corresponding aerator, heating rod device and light source.

[0028] Simultaneously, acute toxicity testing and chronic toxicity exposure experiments were conducted. Within the testing area, four partitions divided the area into five concentration gradient zones: raw water zone 8, concentration I zone 9, concentration II zone 10, concentration III zone 11, and concentration IV zone 12. The wastewater inlet pipe 11 and its valve in raw water zone 8 were opened. Once the water flow reached a certain level, its outlet pipe 12 was opened, and the corresponding inlet and outlet valves were adjusted to control the flow rate and maintain the wastewater level. Later, according to the concentration gradient set in the experiment, the wastewater inlet pipe 2 corresponding to concentration I zone was opened, and... When the wastewater volume reaches a certain scale 1, close the corresponding wastewater inlet pipe 2 and open the corresponding tap water pipe. When the water volume reaches a certain scale, close the corresponding tap water pipe. Then, simultaneously open the corresponding wastewater inlet pipe 2, tap water pipe, and outlet pipe 2, and adjust the corresponding valves to make the water flow speed consistent. For concentration zones II, III, and IV, follow the same procedure as for concentration zone I, opening or closing the corresponding wastewater inlet pipe 2 and outlet pipe 2, and adjusting the valves to make the inlet and outlet water flow speed consistent, maintaining dynamic balance of water flow in each concentration detection zone.

[0029] Within the exposure zone, open wastewater inlet pipe 316. After the water volume reaches a certain level, open outlet pipe 317. Adjust the corresponding inlet and outlet valves to control the flow rate and maintain the wastewater level. Once the water flow in the testing zone and the exposure zone has stabilized, release several zebrafish into the raw water zone 8, concentration zone I 9, concentration zone II 10, concentration zone III 11, concentration zone IV 12, and the biological chronic toxicity exposure zone 5. Due to the barriers and partitions, the test organisms within the zones do not communicate with each other. According to the requirements of acute toxicity testing, after a certain period of time, collect the test organisms that have sunk to the bottom using a stretched net. After treatment, restore the net to its original state and fix it on the bolt. In addition, according to the requirements of the chronic toxicity exposure experiment, collect samples of exposed organisms by stretching the net 25 within the exposure area.

[0030] For single-wastewater acute toxicity testing, all barriers and partitions were closed. Wastewater inlet pipe one and its valves in the raw water zone were opened. Once the water volume reached a certain level, the corresponding outlet pipe one was opened. The corresponding inlet and outlet valves were adjusted to control the flow rate and maintain the wastewater level. Later, based on the concentration gradient set in the experiment, wastewater inlet pipe two corresponding to concentration zone I was opened. Once the wastewater volume reached a certain level, the corresponding wastewater inlet pipe two was closed. The corresponding tap water pipe was opened. Once the water volume reached a certain level, the corresponding tap water pipe was closed. Then, simultaneously open the corresponding wastewater inlet pipe 2, tap water pipe 2, and outlet pipe 2, and adjust the corresponding valves to make the water flow speed consistent. For concentration zones II, III, and IV, follow the same procedure as for concentration zone I, opening or closing the corresponding wastewater inlet pipe 2 and outlet pipe 2, adjusting the valves to make the inlet and outlet water flow speed consistent. After the water flow stabilizes, release several zebrafish into each concentration zone. After a certain period of time, collect the test organisms that have sunk to the bottom using the stretching net 25. After treatment, restore the net 25 to its original state and fix it on the bolt 29.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A regulated wastewater in-situ biological toxicity exposure and detection zonage device comprising a detection housing, characterized by: The detection housing is equipped with a detachable partition, which divides the interior of the detection housing into a detection zone and a biological chronic toxicity exposure zone. The detection zone is equipped with multiple baffles, which divide the detection zone into a raw water zone and multiple concentration detection zones. The upper and lower sections of the raw water zone are respectively connected to a wastewater inlet pipe 1 and an outlet pipe 1. The upper end of each concentration detection zone is connected to a wastewater inlet pipe 2 and a tap water inlet pipe, and the lower end of each zone is connected to an outlet pipe 2. The upper and lower ends of the biological chronic toxicity exposure zone are respectively connected to a wastewater inlet pipe 3 and an outlet pipe 3. An equipment storage box is provided on one side of the detection housing. An aerator and a heating rod are symmetrically placed in the storage box. The aerator and the heating rod are connected to an external power source through wires passing through wire holes provided on the storage box. The aerator delivers oxygen to the bottom of each detection concentration zone and the biological chronic toxicity exposure zone through a hose. The heating rod transfers heat to the corresponding detection zone or biological chronic toxicity exposure zone through a small hole at the bottom of the storage box.

2. The adjustable wastewater in-situ biological toxicity exposure and detection partitioning device according to claim 1, wherein: A cover plate is provided on the detection housing, on which a light source and a display controller are symmetrically arranged and electrically connected, corresponding to the detection area and the biological chronic toxicity exposure area, respectively.

3. The adjustable wastewater in-situ biotoxicity exposure and detection zonation device of claim 1, wherein: The partition is engaged with the partition slot inside the detection housing, and the railing is engaged with the railing slot inside the detection area.

4. The zoning device for in-situ biotoxicity exposure and detection of wastewater according to claim 1, characterized in that: A net is installed at the bottom of the raw water area and multiple concentration detection areas. The net is cylindrical, with its outer fixed edge made of stainless steel. Both sides are fixed to bolts set on both sides of the area by ropes.

5. The zoning device for in-situ biotoxicity exposure and detection of wastewater according to claim 1, characterized in that: Flow control valves are installed on all three wastewater inlet pipes: wastewater inlet pipe 1, wastewater inlet pipe 2, wastewater inlet pipe 3, outlet pipe 1, outlet pipe 2, outlet pipe 3, and tap water inlet pipe.

6. The zoning device for in-situ biotoxicity exposure and detection of wastewater according to claim 1, characterized in that: The detection housing has scale lines on the area corresponding to the partition on the front side.

7. The zoning device for in-situ biotoxicity exposure and detection of wastewater according to claim 1, characterized in that: Temperature sensors are installed in the detection area and the biological chronic toxicity exposure area, respectively.

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