Water toxicity on-line monitoring device
By setting up solid-liquid separation, chronic and acute toxicity testing and treatment mechanisms in the freshwater toxicity online monitoring device, and using Vibrio qinghaiensis to monitor luminescence intensity, the problems of rationality and accuracy in freshwater toxicity monitoring have been solved, achieving efficient and accurate monitoring of the freshwater environment.
Patent Information
- Application Number
- CN202520004073.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-02
AI Technical Summary
Existing online monitoring methods for freshwater toxicity have issues with their rationality and accuracy. In particular, the use of marine bioluminescent bacteria in freshwater environments may lead to secondary pollution, and acute biotoxicity monitoring technologies are inaccurate for detecting low concentrations of organic matter.
Solid particles such as silt and sand are removed by a solid-liquid separation mechanism. Water samples are treated separately by chronic and acute toxicity testing and treatment mechanisms. Vibrio qinghaiensis bacterial solution is added through a monitoring mechanism, and the luminescence intensity of the water samples is monitored to characterize toxicity in reverse.
It improves the rationality and accuracy of freshwater toxicity monitoring, avoids pollution of the freshwater environment by marine bioluminescent bacteria, is suitable for the detection of low-concentration samples, and enhances the detection effect and environmental friendliness.
Smart Images
Figure CN223870539U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water quality biotoxicity monitoring technology, specifically to an online water quality toxicity monitoring device. Background Technology
[0002] Water is a vital resource for the survival and development of humans and other plants and animals. Reservoirs and lakes play a crucial role in daily life, production, and irrigation. Conventional chemical analysis methods can only qualitatively or quantitatively test the composition or concentration of pollutants, and cannot evaluate the overall toxic effects of water bodies. Large-scale development and utilization of water resources will inevitably place greater emphasis on monitoring water toxicity. Surface water, as a water source, is relatively simple to develop, requiring no extensive excavation or the use of large machinery. However, surface water is easily polluted, with relatively high turbidity and high levels of organic matter and bacteria, which reduces the reliability and safety of water use. Therefore, monitoring water toxicity is necessary.
[0003] In existing technologies, online monitoring of water toxicity often utilizes marine bioluminescent bacteria. However, the marine environment differs significantly from freshwater environments. Using marine bioluminescent bacteria for water toxicity monitoring may lead to secondary pollution. Furthermore, the detection process frequently employs acute biotoxicity monitoring techniques. While environmental samples with low concentrations of organic matter may show non-toxic results in acute biotoxicity tests for bioluminescent bacteria, this does not necessarily mean the sample is harmless to humans, animals, and plants. Under long-term exposure, the sample can still pose a risk to humans, animals, and plants. Utility Model Content
[0004] The purpose of this invention is to provide an online water toxicity monitoring device that can solve the problems of low rationality and accuracy of existing online freshwater toxicity monitoring.
[0005] This utility model is achieved through the following technical solution:
[0006] An online water toxicity monitoring device includes a solid-liquid separation mechanism, the inlet of which is connected to a water sample source; a pretreatment mechanism for solid-liquid separation of the water sample and extraction of the liquid portion; a treatment mechanism including a chronic toxicity testing treatment mechanism and an acute toxicity testing treatment mechanism, which are respectively connected to the liquid outlet of the solid-liquid separation mechanism; and a monitoring mechanism connected to the outlets of the chronic toxicity testing treatment mechanism and the acute toxicity testing treatment mechanism, which is used to add Vibrio qinghaiense bacterial solution to the water sample obtained from the chronic toxicity testing treatment mechanism and the acute toxicity testing treatment mechanism, and monitor the luminescence intensity of the water sample.
[0007] Optionally, the solid-liquid separation mechanism includes a sedimentation tank and a filtration tank; the sedimentation tank is connected to a water sample inlet pipe, a sediment outlet pipe and a first pipe, the water sample inlet pipe is connected to a water sample source, and the first pipe is connected to the filtration tank; the filtration tank is connected to a filter outlet pipe and a second pipe, and the second pipe is connected to the processing mechanism.
[0008] Optionally, the chronic toxicity testing and treatment facility includes a concentrator and a chronic toxicity testing water sample pretreatment chamber; the inlet of the concentrator is connected to the second conduit, the outlet of the concentrator is connected to the chronic toxicity testing water sample pretreatment chamber via a third conduit, and the outlet of the chronic toxicity testing water sample pretreatment chamber is connected to the testing facility; the chronic toxicity testing water sample pretreatment chamber is equipped with an ultraviolet spectroscopy water total organic carbon detector and a conductivity sensor.
[0009] Optionally, the acute toxicity testing and processing unit includes a solid-phase extractor and an acute toxicity testing water sample pretreatment chamber; the inlet of the solid-phase extractor is connected to the second conduit, the outlet of the solid-phase extractor is connected to the acute toxicity testing water sample pretreatment chamber through a fifth conduit, and the outlet of the acute toxicity testing water sample pretreatment chamber is connected to the testing unit; the acute toxicity testing water sample pretreatment chamber is equipped with a pH meter and an initial luminescence intensity monitoring sensor.
[0010] Optionally, the processing mechanism further includes a splitter, the inlet of which is connected to the second conduit, and the outlet of which is connected to the inlet of the concentrator and the inlet of the solid phase extractor via a first splitter pipe and a second splitter pipe, respectively.
[0011] Optionally, the monitoring mechanism includes a bacterial addition chamber group and a luminescence intensity monitoring chamber group; the bacterial addition chamber group includes a first bacterial addition chamber and a second bacterial addition chamber, the first bacterial addition chamber being connected to the pretreatment chamber for chronic toxicity testing via a seventh conduit, and the second bacterial addition chamber being connected to the pretreatment chamber for acute toxicity testing via an eighth conduit; the luminescence intensity monitoring chamber group includes a luminescence intensity monitoring chamber for chronic toxicity testing and a luminescence intensity monitoring chamber for acute toxicity testing, the inlet of the luminescence intensity monitoring chamber for chronic toxicity testing being connected to the outlet of the pretreatment chamber for chronic toxicity testing via a ninth conduit, and the inlet of the luminescence intensity monitoring chamber for acute toxicity testing being connected to the outlet of the pretreatment chamber for acute toxicity testing via a tenth conduit.
[0012] Optionally, the luminescence intensity monitoring chamber for chronic toxicity testing and the luminescence intensity monitoring chamber for acute toxicity testing are each equipped with a luminescence intensity monitoring sensor.
[0013] Optionally, the outlet of the chronic toxicity testing luminescence intensity monitoring chamber is connected to a first wastewater recovery device via an eleventh conduit, and the outlet of the acute toxicity testing luminescence intensity monitoring chamber is connected to a second wastewater recovery device via a twelfth conduit.
[0014] Optionally, the water sample inlet conduit, the sediment outlet conduit, the filter outlet conduit, the first conduit, the third conduit, the fifth conduit, the seventh conduit, the ninth conduit, the tenth conduit, the eleventh conduit, and the twelfth conduit are each equipped with a valve.
[0015] Optionally, the second conduit is equipped with a pressure boosting valve.
[0016] Compared with the prior art, this utility model has the following advantages and beneficial effects:
[0017] This utility model provides an online water toxicity monitoring device. It employs a solid-liquid separation mechanism to remove solid particles such as silt from water samples. A processing mechanism further treats the separated water samples for chronic and acute toxicity, ensuring each sample meets the monitoring requirements for both conditions. A monitoring mechanism adds Vibrio qinghaiense bacterial solution to the two water samples treated by the processing mechanism and monitors the luminescence intensity of the two samples. This allows for the inverse characterization of chronic and acute toxicity in the two water samples through luminescence intensity, effectively improving the rationality and accuracy of the monitoring. Attached Figure Description
[0018] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:
[0019] Figure 1 A schematic diagram of the online water toxicity monitoring device provided in this embodiment of the utility model;
[0020] Figure 2 A partial schematic diagram of the diverter of the online water toxicity monitoring device provided in this embodiment of the utility model;
[0021] Figure 3 A schematic diagram of the water sample pretreatment chamber for acute toxicity testing in the online water toxicity monitoring device provided in this embodiment of the utility model;
[0022] Figure 4 A schematic diagram of the water sample pretreatment chamber for chronic toxicity testing in the online water toxicity monitoring device provided in this embodiment of the utility model.
[0023] The attached diagram shows the markings and corresponding component names:
[0024] 10-Sedimentation tank; 11-Water sample inlet conduit; 12-Sediment outlet conduit; 13-First conduit; 20-Filtration tank; 21-Filter outlet conduit; 22-Second conduit; 221-Pressure booster valve; 30-Concentrator; 31-Water sample pretreatment chamber for chronic toxicity testing; 311-Ultraviolet spectroscopy total organic carbon analyzer; 312-Conductivity sensor; 32-Third conduit; 40-Solid phase extractor; 41-Water sample pretreatment chamber for acute toxicity testing; 411-pH meter; 412-Initial luminescence intensity monitor Sensor; 42-Fifth catheter; 50-Diverter; 51-First diverter; 52-Second diverter; 60-First inoculum chamber; 601-Seventh catheter; 61-Second inoculum chamber; 611-Eighth catheter; 62-Chapped toxicity testing luminescence intensity monitoring chamber; 621-Ninth catheter; 622-Eleventh catheter; 63-Acute toxicity testing luminescence intensity monitoring chamber; 631-Tenth catheter; 632-Twelfth catheter; 64-Luminescence intensity monitoring sensor; 70-First wastewater recovery unit; 71-Second wastewater recovery unit. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.
[0026] Example
[0027] Please refer to Figures 1 to 4 This embodiment provides an online water toxicity monitoring device, including a solid-liquid separation mechanism. The inlet of the solid separation mechanism is connected to a water sample source. The pretreatment mechanism is used to perform solid-liquid separation on the water sample and extract the liquid portion. The second part includes a treatment mechanism, which includes a chronic toxicity testing treatment mechanism and an acute toxicity testing treatment mechanism. The chronic toxicity testing treatment mechanism and the acute toxicity testing treatment mechanism are respectively connected to the liquid outlet of the solid-liquid separation mechanism. The third part includes a monitoring mechanism, which is connected to the outlet of the chronic toxicity testing treatment mechanism and the acute toxicity testing treatment mechanism. The monitoring mechanism is used to add Vibrio qinghaiensis bacterial solution to the water sample obtained by the chronic toxicity testing treatment mechanism and the acute toxicity testing treatment mechanism, and to monitor the luminescence intensity of the water sample.
[0028] The online water toxicity monitoring device provided in this embodiment removes solid particles such as silt from water samples by setting up a solid-liquid separation mechanism; it then treats the water samples after solid-liquid separation for chronic and acute toxicity, respectively, so that the water samples meet the monitoring conditions required for the two types of conditions; and finally, it adds Vibrio qinghaiense bacterial solution to the two water samples obtained from the treatment mechanism and monitors the luminescence intensity of the two water samples, thereby using the luminescence intensity to inversely characterize the chronic and acute toxicity of the two water samples, effectively improving the rationality and accuracy of the monitoring.
[0029] It should be noted that, compared to existing technologies, using Vibrio qinghaiensis to test water toxicity has advantages. Vibrio qinghaiensis does not require high NaCl concentrations, making it suitable for detecting the toxicity of toxins in freshwater environments. It eliminates the need for adding 2% NaCl, avoiding potential interference from marine luminescent bacteria when testing freshwater quality. This method offers excellent detection results and is environmentally friendly. Furthermore, considering the characteristics of the water bodies being tested, river and lake water are typically low-concentration samples. Vibrio qinghaiensis is highly sensitive to toxins in the environment; its luminescence intensity is rapidly suppressed upon contact with toxins, making it suitable for detecting low-concentration samples and effectively improving detection accuracy.
[0030] To further explain the specific structure of the solid-liquid separation mechanism, the solid-liquid separation mechanism includes a sedimentation tank 10 and a filtration tank 20; the sedimentation tank 10 is connected to a water sample inlet conduit 11, a sediment outlet conduit 12 and a first conduit 13, the water sample inlet conduit 11 is connected to a water sample source, and the first conduit 13 is connected to the filtration tank 20; the filtration tank 20 is connected to a filter outlet conduit 21 and a second conduit 22, and the second conduit 22 is connected to the processing mechanism.
[0031] By setting up sedimentation tank 10 and filtration tank 20, solid particles such as silt and sand in the water sample are removed.
[0032] To further explain the specific structure of the chronic toxicity testing and treatment facility, the facility includes a concentrator 30 and a chronic toxicity testing water sample pretreatment chamber 31. The inlet of the concentrator 30 is connected to the second conduit 22, and the outlet of the concentrator 30 is connected to the chronic toxicity testing water sample pretreatment chamber 31 via a third conduit 32. The outlet of the chronic toxicity testing water sample pretreatment chamber 31 is connected to the detection facility. The chronic toxicity testing water sample pretreatment chamber 31 is equipped with an ultraviolet spectroscopy water total organic carbon detector 311 and a conductivity sensor 312.
[0033] The water sample after solid-liquid separation is concentrated using a concentrator 30. Concentration technology is used as a pretreatment method for biotoxicity testing of low-toxicity environmental samples. A UV spectroscopy total organic carbon detector 311 and a conductivity sensor 312 are used to detect total organic carbon and conductivity, which are then used as indicators to distinguish the enrichment of organic and inorganic ions during sample concentration. This method can simultaneously concentrate both inorganic and organic matter in the sample, expanding the application range of Vibrio qinghaiense toxicity detection methods and reducing the influence of inorganic nutrients in the concentrated (RO) sample on the detection.
[0034] It should be noted that the above-mentioned concentrator 30 can be any type of concentrator in the prior art, as long as it can achieve the concentrating effect.
[0035] To further explain the specific structure of the acute toxicity testing and treatment facility, the facility includes a solid-phase extractor 40 and an acute toxicity testing water sample pretreatment chamber 41. The inlet of the solid-phase extractor 40 is connected to the second conduit 22, and the outlet of the solid-phase extractor 40 is connected to the acute toxicity testing water sample pretreatment chamber 41 via a fifth conduit 42. The outlet of the acute toxicity testing water sample pretreatment chamber 41 is connected to the detection mechanism. The acute toxicity testing water sample pretreatment chamber 41 is equipped with a pH meter 411 and an initial luminescence intensity monitoring sensor 412.
[0036] By setting up a solid-phase extractor 40 to extract water samples after solid-liquid separation, the enrichment and concentration of organic toxic substances in the water samples are achieved. Solid-phase extraction-acute toxicity detection of Vibrio qinghaiensis can not only concentrate low-toxicity samples with organic matter as the main pollutant, but also remove inorganic nutrients in the samples, thereby avoiding interference from stimulating luminescence and improving the application range of toxicity detection. By setting up a pH meter 411 and an initial luminescence intensity monitoring sensor 412, parameters such as the initial luminescence value, bacterial dosage, exposure time, and pH value are determined, effectively improving the detection accuracy.
[0037] It should be noted that the solid phase extractor 40 mentioned above can be any concentration device in the existing technology, as long as it can achieve the solid phase extraction effect.
[0038] In order to allow the water samples after solid-liquid separation to be fed into the concentrator 30 and the solid phase extractor 40 in a certain proportion, the processing mechanism also includes a splitter 50. The inlet of the splitter 50 is connected to the second conduit 22, and the outlet of the splitter 50 is connected to the inlet of the concentrator 30 and the inlet of the solid phase extractor 40 through the first splitter pipe 51 and the second splitter pipe 52, respectively.
[0039] It should be noted that the diverter 50 in this embodiment can be any liquid diverter in the prior art, as long as it can divert the water sample according to a specific volume ratio.
[0040] To further explain the specific structure of the monitoring institution, the monitoring institution includes a bacterial addition chamber group and a luminescence intensity monitoring chamber group; the bacterial addition chamber group includes a first bacterial addition chamber 60 and a second bacterial addition chamber 61, the first bacterial addition chamber 60 is connected to the pretreatment chamber 31 for chronic toxicity testing via a seventh conduit 601, and the second bacterial addition chamber 61 is connected to the pretreatment chamber 41 for acute toxicity testing via an eighth conduit 611; the luminescence intensity monitoring chamber group includes a luminescence intensity monitoring chamber 62 for chronic toxicity testing and a luminescence intensity monitoring chamber 63 for acute toxicity testing, the inlet of the luminescence intensity monitoring chamber 62 for chronic toxicity testing is connected to the outlet of the pretreatment chamber 31 for chronic toxicity testing via a ninth conduit 621, and the inlet of the luminescence intensity monitoring chamber 63 for acute toxicity testing is connected to the outlet of the pretreatment chamber 41 for acute toxicity testing via a tenth conduit 631.
[0041] By setting up a first bacterial addition chamber 60 and a second bacterial addition chamber 61, Vibrio qinghaiensis bacterial solution is added to the water sample pretreatment chamber 31 for chronic toxicity testing and the water sample pretreatment chamber 41 for acute toxicity testing, respectively. By setting up a luminescence intensity monitoring chamber 62 for chronic toxicity testing and a luminescence intensity monitoring chamber 63 for acute toxicity testing, the luminescence of water samples after chronic and acute corresponding treatments with added Vibrio qinghaiensis bacterial solution is monitored, respectively.
[0042] To improve the accuracy of luminescence intensity monitoring, the luminescence intensity monitoring chamber 62 for chronic toxicity testing and the luminescence intensity monitoring chamber 63 for acute toxicity testing are each equipped with a luminescence intensity monitoring sensor 64.
[0043] In order to safely recover the monitored water samples, the outlet of the chronic toxicity test luminescence intensity monitoring chamber 62 is connected to the first wastewater recovery device 70 through the eleventh conduit 622, and the outlet of the acute toxicity test luminescence intensity monitoring chamber 63 is connected to the second wastewater recovery device 71 through the twelfth conduit 632.
[0044] For ease of control, valves are provided for the water sample inlet conduit 11, the sediment outlet conduit 12, the filter outlet conduit 21, the first conduit 13, the third conduit 32, the fifth conduit 42, the seventh conduit 601, the ninth conduit 621, the tenth conduit 631, the eleventh conduit 622 and the twelfth conduit 632.
[0045] Preferably, the second conduit 22 is provided with a pressure boosting valve 221.
[0046] In use, sedimentation tank 10 and filtration tank 20 remove particulate matter such as mud and sand from the water sample. The filtered water is sent to the distributor 50 through the pressure boosting valve 221. The water sample is then sent to the solid phase extractor 40 and the concentrator 30 in proportion through the distributor 50.
[0047] After solid-phase extraction, the water sample enters the pretreatment chamber 41 for acute toxicity testing to adjust the pH value, ensuring it is between 5 and 10 as measured by pH meter 411. Then, Vibrio qinghaiense bacterial solution is added through the second bacterial addition chamber 61. The initial luminescence value of the water sample in the pretreatment chamber 41 for acute toxicity testing is measured to be 3 × 10⁻⁶ by initial luminescence intensity monitoring sensor 412. 6 -4×10 6 Between RLUs;
[0048] After concentration, the water sample enters the chronic toxicity test water sample pretreatment chamber 31. The concentration is assessed using an ultraviolet spectroscopy water total organic carbon detector 311 and a conductivity sensor 312 to determine if it meets the requirements. Qinghai Vibrio bacterial solution is added through the first bacterial addition chamber 60. The water sample from the acute toxicity test water sample pretreatment chamber 41 then enters the acute toxicity test luminescence intensity monitoring chamber 63. The luminescence value of the acute toxicity test luminescence intensity monitoring chamber 63 after 15 minutes of exposure is measured using a luminescence intensity monitoring sensor 64. The water sample from the chronic toxicity test water sample pretreatment chamber 31 then enters the chronic toxicity test luminescence intensity monitoring chamber 62. The luminescence value of the chronic toxicity test luminescence intensity monitoring chamber 62 after 10 hours of exposure is measured using a luminescence intensity monitoring sensor 64. After monitoring, the waste liquid in the acute toxicity test luminescence intensity monitoring chamber 63 is transferred to the second wastewater recovery unit 71, and the waste liquid in the chronic toxicity test luminescence intensity monitoring chamber 62 is transferred to the first wastewater recovery unit 70.
[0049] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. A water toxicity online monitoring device, characterized in that, include: A solid-liquid separation mechanism, wherein the inlet of the solid-liquid separation mechanism is connected to a water sample source, and the solid-liquid separation mechanism is used to separate the solid and liquid components of the water sample and extract the liquid component; The processing mechanism includes a chronic toxicity testing processing mechanism and an acute toxicity testing processing mechanism, wherein the chronic toxicity testing processing mechanism and the acute toxicity testing processing mechanism are respectively connected to the liquid outlet of the solid-liquid separation mechanism; The monitoring agency is connected to the outlets of the chronic toxicity testing and treatment agency and the acute toxicity testing and treatment agency, respectively. The monitoring agency is used to add Vibrio qinghaiensis bacterial solution to the water samples obtained from the chronic toxicity testing and treatment agency and the acute toxicity testing and treatment agency, and to monitor the luminescence intensity of the water samples.
2. The online water toxicity monitoring device according to claim 1, characterized in that, The solid-liquid separation mechanism includes a sedimentation tank (10) and a filtration tank (20); The sedimentation tank (10) is connected to a water sample inlet pipe (11), a sediment outlet pipe (12) and a first pipe (13). The water sample inlet pipe (11) is connected to a water sample source, and the first pipe (13) is connected to the filter tank (20). The filter tank (20) is connected to a filter outlet conduit (21) and a second conduit (22), the second conduit (22) being connected to the processing mechanism.
3. The online water toxicity monitoring device according to claim 2, characterized in that, The chronic toxicity testing facility includes a concentrator (30) and a chronic toxicity testing water sample pretreatment chamber (31). The inlet of the concentrator (30) is connected to the second conduit (22), and the outlet of the concentrator (30) is connected to the toxic chronic test water sample pretreatment chamber (31) through the third conduit (32). The outlet of the toxic chronic test water sample pretreatment chamber (31) is connected to the monitoring agency. The water sample pretreatment room (31) for chronic toxicity testing is equipped with an ultraviolet spectroscopy total organic carbon detector (311) and a conductivity sensor (312).
4. The online water toxicity monitoring device according to claim 3, characterized in that, The acute toxicity testing and processing facility includes a solid phase extractor (40) and an acute toxicity testing water sample pretreatment room (41). The inlet of the solid phase extractor (40) is connected to the second conduit (22), and the outlet of the solid phase extractor (40) is connected to the acute toxicity test water sample pretreatment chamber (41) through the fifth conduit (42). The outlet of the acute toxicity test water sample pretreatment chamber (41) is connected to the monitoring agency. The acute toxicity test water sample pretreatment chamber (41) is equipped with a pH meter (411) and an initial luminescence intensity monitoring sensor (412).
5. The online water toxicity monitoring device according to claim 4, characterized in that, The processing mechanism also includes a splitter (50), the inlet of which is connected to the second conduit (22), and the outlet of which is connected to the inlet of the concentrator (30) and the inlet of the solid phase extractor (40) through the first splitter pipe (51) and the second splitter pipe (52), respectively.
6. The online water toxicity monitoring device according to claim 5, characterized in that, The monitoring facility includes a bacterial addition chamber group and a luminescence intensity monitoring room group; The bacterial addition chamber group includes a first bacterial addition chamber (60) and a second bacterial addition chamber (61). The first bacterial addition chamber (60) is connected to the chronic toxicity test water sample pretreatment chamber (31) through a seventh conduit (601), and the second bacterial addition chamber (61) is connected to the acute toxicity test water sample pretreatment chamber (41) through an eighth conduit (611). The luminescence intensity monitoring chamber group includes a luminescence intensity monitoring chamber for chronic toxicity testing (62) and a luminescence intensity monitoring chamber for acute toxicity testing (63). The inlet of the luminescence intensity monitoring chamber for chronic toxicity testing (62) is connected to the outlet of the water sample pretreatment chamber for chronic toxicity testing (31) through a ninth conduit (621). The inlet of the luminescence intensity monitoring chamber for acute toxicity testing (63) is connected to the outlet of the water sample pretreatment chamber for acute toxicity testing (41) through a tenth conduit (631).
7. The online water toxicity monitoring device according to claim 6, characterized in that, The chronic toxicity testing luminescence intensity monitoring chamber (62) and the acute toxicity testing luminescence intensity monitoring chamber (63) are respectively equipped with luminescence intensity monitoring sensors (64).
8. The online water toxicity monitoring device according to claim 7, characterized in that, The outlet of the chronic toxicity testing luminescence intensity monitoring chamber (62) is connected to the first wastewater recovery unit (70) via the eleventh conduit (622), and the outlet of the acute toxicity testing luminescence intensity monitoring chamber (63) is connected to the second wastewater recovery unit (71) via the twelfth conduit (632).
9. The online water toxicity monitoring device according to claim 8, characterized in that, The water sample inlet conduit (11), the sediment outlet conduit (12), the filter outlet conduit (21), the first conduit (13), the third conduit (32), the fifth conduit (42), the seventh conduit (601), the ninth conduit (621), the tenth conduit (631), the eleventh conduit (622), and the twelfth conduit (632) are each equipped with a valve.
10. The online water toxicity monitoring device according to claim 9, characterized in that, The second conduit (22) is equipped with a pressure boosting valve (221).