System for reducing organic matters in water through multi-process combination and multi-barrier real-time monitoring of waterworks

Abstract

The utility model relates to a multi-process combined multi-barrier real-time monitoring and reduction system for organic matters in water in a waterworks, which comprises a sedimentation tank, a biological filter tank and a clean water tank which are sequentially arranged between a water inlet and a water outlet, the adsorbent can be added at the front end of the sedimentation tank, the gas-water mixing device is arranged at the front end of the biological filter tank and can be opened and closed, the ultraviolet-advanced oxidation generation device is arranged at the front end of the clean water tank and can be opened and closed, and the detection device is used for carrying out online sampling and real-time detection on a collected water sample. The control system is used for selectively adding an adsorbent, selectively opening and closing the gas-water mixing device and selectively opening and closing the ultraviolet-advanced oxidation device according to a detection result of the detection device, and the control system is used for selectively configuring or opening and closing a configuration for improving the organic matter removal rate according to the detection result of the detection device. Through low-cost multi-process combination, a multi-barrier system for reducing odor substances in drinking water production is constructed.

Description

Technical Field

[0001] The utility model relates to the field of water supply, specifically to the technical field of a system for real-time monitoring and reducing organic substances in water with multiple process combinations and multiple barriers in a waterworks. Background Technique

[0002] Currently, with the acceleration of the industrialization process, water bodies are increasingly polluted by organic substances, especially volatile organic compounds, semi-volatile organic compounds, pesticides, odor substances, etc. These organic substances not only pose a threat to human health but also have a lasting impact on the environment. Therefore, how to effectively remove organic substances in water has become an important research topic.

[0003] For example, Chinese Patent CN110407354A discloses a water treatment system for a waterworks with series ozone contact including a pre-ozone contact tank, a grid flocculation tank, a horizontal flow sedimentation tank, a V-shaped filter tank, a post-ozone contact tank, an activated carbon filter tank, etc. However, there are also problems such as large land occupation of the filter tank, high construction cost, and limited construction conditions. Moreover, without monitoring the organic matter filtration effect midway, it is easy to cause problems such as excessive disinfection or decline in the effect of organic matter removal and disinfection. Summary of the Utility Model

[0004] In view of the above requirements and the problems existing in the prior art, the utility model aims to design a system for real-time monitoring and reducing organic substances in water with multiple process combinations and multiple barriers in a waterworks. The on-line detection device monitors the water quality changes in real time, combines multiple process means, realizes the effective removal of organic substances, and achieves the effect of being both comprehensive and economical.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A system for real-time monitoring and reducing organic substances in water with multiple process combinations and multiple barriers in a waterworks includes a sedimentation tank, a biological filter tank, and a clear water tank sequentially arranged between the water inlet and the water outlet;

[0007] It also includes an adsorbent that can be added at the front end of the sedimentation tank, an air-water mixing device that can be opened and closed at the front end of the biological filter tank, and an ultraviolet-advanced oxidation generating device that can be opened and closed at the front end of the clear water tank;

[0008] It further includes a first sampling device for collecting water samples at the water inlet, a second sampling device for collecting water samples at the water outlet, a third sampling device for collecting water quality at the rear end of the sedimentation tank, a fourth sampling device for collecting water quality at the rear end of the biological filter tank, and a detection device for on-line sampling and real-time detection of the collected water samples;

[0009] It also includes a control system for selecting to add the adsorbent, selecting to open and close the air-water mixing device, and selecting to open and close the ultraviolet-advanced oxidation device according to the detection results of the detection device.

[0010] Compared with the prior art, in this case, an adsorbent that can be added to improve the removal rate of organic matter, an openable air-water mixing device, and an openable ultraviolet-advanced oxidation device are respectively provided at the front ends of the sedimentation tank, the biological filter, and the clear water tank. The control system selects and configures or opens and closes the configuration for improving the removal rate of organic matter according to the detection results of the detection device. Under the existing filter conditions, a system for reducing odor substances in drinking water production with multiple barriers can be constructed through a combination of multiple processes at low cost.

[0011] In some embodiments, the adsorbent includes powdered activated carbon.

[0012] In some embodiments, the air-water mixing device is an aeration device.

[0013] In a preferred embodiment, the aeration device is a micro-nano aeration device.

[0014] In a preferred embodiment, the ultraviolet-advanced oxidation device includes a pipeline type ultraviolet disinfection device.

[0015] In a preferred embodiment, the ultraviolet-advanced oxidation device further includes an oxidant dosing device.

[0016] In a preferred embodiment, the oxidant dosing device is arranged at the front end of the pipeline type ultraviolet disinfection device.

[0017] In a preferred embodiment, the biological filter is a filter filled with granular activated carbon, sand filter media, zeolite media, or a filter with a combination of granular activated carbon, sand filter media, and zeolite media. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of a system for real-time monitoring and reducing organic matter in water with multiple process combinations and multiple barriers in the waterworks of this case. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following further details the features of the present invention and other related features through embodiments for the understanding of those skilled in the same industry:

[0020] Please refer to Figure 1 , the system for real-time monitoring and reducing organic matter in water with multiple process combinations and multiple barriers in the waterworks of the present invention of this case includes a sedimentation tank 100, a biological filter 200, and a clear water tank 300 arranged in sequence between the water inlet 1 and the water outlet 2. Here, between the water inlet 1 and the sedimentation tank 100 and between each filter, the water passage section to the water outlet 2 is preferably transported by pipeline. Of course, according to actual conditions, there can be a combination of pipeline and channel. In the embodiments of this case, the pipeline water passage is taken as an example for description. In this case, the descriptions of the front end and the rear end will be used. The front end refers to the water inlet direction, and the rear end is the water outlet direction, that is, the water flow direction.

[0021] The sedimentation tank 100 is used in a conventional water supply system and will not be elaborated here. At the front end of the sedimentation tank 100, an adsorbent 110 that can be added is provided, which is an optional configuration. Specifically, the adsorbent 110 includes powdered activated carbon in its selection and can be flexibly added according to requirements. After the adsorbent 110 is added, it can quickly adsorb organic matter and precipitate in the sedimentation tank 100.

[0022] The adsorbent 110 can adsorb organic matter and odors in water, thus improving water quality. Activated carbon has a strong adsorption capacity and can adsorb organic matter in water, including phenols, benzene series, polycyclic aromatic hydrocarbons, halogenated hydrocarbons, organophosphorus, organochlorine, organofluorine, organosulfur, organonitrogen, etc. These organic matters may enter the water source due to reasons such as industrial wastewater discharge, agricultural chemical fertilizer application, and domestic sewage discharge. There are many microporous structures on the surface of activated carbon, which can remove suspended solids, colloidal particles and other impurities in water, and can also adsorb volatile organic compounds and gases in water, thus eliminating odors and improving the taste and quality of water.

[0023] The raw water flows into the biological filter 200 after being filtered by the sedimentation tank 100. The biological filter 200 is a water treatment structure that uses a microbial community (such as bacteria, fungi, etc.) attached to the surface or inside of the filter material to remove harmful substances in water through biodegradation. These microorganisms can effectively decompose organic matter and other pollutants under aerobic conditions. Moreover, the biological filter 200 can further effectively remove various organic substances in sewage, including carbon sources, nitrogen sources, phosphorus sources, etc. At the same time, due to its good biodiversity, it can also remove some special organic pollutants, such as refractory organic compounds, toxic and harmful substances, etc. The filler of the biological filter 200 can be sand filtration as the filler. Sand is a relatively common filter material choice due to its good permeability and support for microorganisms. In addition, granular activated carbon filler or zeolite filler or a combined filter of granular activated carbon filler, sand filtration and zeolite filler can also be selected.

[0024] An openable gas-water mixing device 210 is provided at the front end of the biological filter 200. Specifically, the gas-water mixing device 210 can be an aeration device. The purpose of aeration in the biological filter 200 is mainly to provide sufficient dissolved oxygen to microorganisms to ensure the efficient progress of the biological treatment process under aerobic conditions. Aeration can not only directly increase the dissolved oxygen concentration in water, but also promote the dissolution of pollutants in water, which is beneficial to the degradation of microorganisms. At the same time, it helps to maintain the microbial activity in the filter and prevent the formation of anaerobic conditions, thereby improving the overall treatment efficiency. Preferably, the aeration device is a micro-nano aeration device, such as a micro-nano bubble generator, a micro-nano aerator, etc.

[0025] After being filtered by the biological filter 200, it flows into the clear water tank 300, and an openable and closable ultraviolet-advanced oxidation device is arranged at the front end of the clear water tank 300. After being filtered by the biological filter 200, the residual organic matter is finally decomposed by the ultraviolet-advanced oxidation device. Specifically, the ultraviolet-advanced oxidation device includes a pipe-type ultraviolet disinfection device 310. The pipe-type ultraviolet disinfection device 310 (Pipe-type Ultraviolet Disinfection System) is a purification device for water flowing in a pipe, which is a commonly used device in the industry, and its working principle will not be elaborated here.

[0026] Meanwhile, the ultraviolet-advanced oxidation device further includes an oxidant dosing device 320. The oxidant to be dosed can be hydrogen peroxide, chlorine, sodium hypochlorite, chloramine, or persulfate, and a suitable oxidant is selected according to the actual working conditions. Preferably, the oxidant dosing device 320 is arranged at the front end of the pipe-type ultraviolet disinfection device 310, which can maximize the synergistic effect of the oxidant and ultraviolet light and improve the overall effect of organic matter treatment. The ultraviolet-advanced oxidation device can remove residual organic matter, and its dosing amount can be adjusted according to requirements, including but not limited to only opening the pipe-type ultraviolet disinfection device 310 alone.

[0027] In this way, under the existing conditions without adding new filter construction, a multi-barrier system for reducing organic matter in drinking water production can be constructed through low-cost multi-process combination and joint use.

[0028] As the monitoring of the filtration effect, the multi-process combination and multi-barrier real-time monitoring and reduction of organic matter system in the waterworks of this case further includes a first sampling device 10 for sampling the water sample at the water inlet 1, a second sampling device 20 for sampling the water sample at the water outlet 2, a third sampling device 30 for sampling the water quality at the rear end of the sedimentation tank 100, a fourth sampling device 40 for sampling the water quality at the rear end of the biological filter 200, and a detection device 400 for on-line sampling and real-time detection of the sampled water samples. Here, the detection device 400 is a device for monitoring water quality, especially organic matter, and can be gas chromatography-mass spectrometry (Gas Chromatography-Mass Spectrometry, GC-MS). For the detection device 400 in this case, it includes the detection equipment and the pretreatment link of the detection equipment. The description in this case is to illustrate that the detection device 400 can perform overall detection, and the specific detection steps are not described in detail in this case.

[0029] This case further includes a control system for selecting to dose the adsorbent 110, selecting to open and close the air-water mixing device 210, and selecting to open and close the ultraviolet-advanced oxidation device (the pipe-type ultraviolet disinfection device 310 and the oxidant dosing device 320) according to the detection results of the detection device 400.

[0030] The application examples of this case are illustrated as follows. For the various measures described above, such as the measures of adding adsorbent 110, air-water mixing device 210, ultraviolet-advanced oxidation device (pipe-type ultraviolet disinfection device 310 and oxidant dosing device 320), the measure costs and the achieved effects are all different. Therefore, the control system of this case implements the optimal organic matter reduction plan according to the detection results of the detection device 400.

[0031] In some application examples, when the detection result of the second collection device 20 at the water outlet exceeds the standard by a small margin, the method of improving the efficiency of the biological filter 200 can be preferably adopted, and the air-water mixing device 210 can be turned on. The effect of removing organic matter can be achieved at the lowest cost.

[0032] In some application examples, when the detection result of the second collection device 20 at the water outlet exceeds the standard by a large margin, it is necessary to turn on the air-water mixing device 210, add the adsorbent 110, and turn on the ultraviolet-advanced oxidation device simultaneously.

[0033] Certainly, in some application examples, when the detection result is between the above two application examples, the detection results of the third collection device 30 and the fourth collection device 40 can be combined, the adsorbent 110 can be added or the ultraviolet-advanced oxidation device can be turned on, and the dosing amount of the ultraviolet-advanced oxidation device can also be adjusted. While effectively reducing the organic matter in the water, the economy can be taken into account.

[0034] Certainly, in other application examples, other combination methods can also be selected. The selection and combination methods of this case should not be limited by the application examples.

[0035] As described above, what this case protects is a real-time monitoring and organic matter reduction system for multiple processes and multiple barriers in a waterworks. All technical solutions identical or similar to this case should be regarded as falling within the protection scope of this case.

Claims

1. A multi-process combination and multi-barrier real-time monitoring system for reducing organic matters in water in a waterworks, comprising a filtration filter (100), a biological filter (200), and a clear water tank (300) sequentially arranged between a water inlet (1) and a water outlet (2); It further includes an adsorbent (110) that can be added at the front end of the filtration filter (100), an air-water mixing device (210) that can be opened and closed at the front end of the biological filter (200), and an ultraviolet-advanced oxidation generating device that can be opened and closed at the front end of the clear water tank; It further includes a first sampling device (10) for sampling the water sample at the water inlet (1), a second sampling device (20) for sampling the water sample at the water outlet (2), a third sampling device (30) for sampling the water quality at the rear end of the filtration filter (100), a fourth sampling device (40) for sampling the water quality at the rear end of the biological filter (200), and a detection device (400) for online sampling and real-time detection of the collected water samples; It further includes a control system for selecting to add the adsorbent (110), selecting to open and close the air-water mixing device (210), and selecting to open and close the ultraviolet-advanced oxidation device according to the detection results of the detection device (400).

2. The multi-process combination and multi-barrier real-time monitoring and reduction of organic matter in water system for waterworks as claimed in claim 1, wherein The adsorbent (110) that can be added includes powdered activated carbon.

3. The multi-process combination multi-barrier real-time monitoring and reduction of organic matter in water system of the waterworks as described in claim 1, wherein The air-water mixing device (210) is an aeration device.

4. The multi-process combination multi-barrier real-time monitoring and reduction of organic matter in water system for waterworks as claimed in claim 3, wherein, The aeration device is a micro-nano aeration device.

5. The multi-process combined multi-barrier real-time monitoring and reduction system for organic matters in water in a waterworks as claimed in claim 1, wherein The ultraviolet-advanced oxidation device includes a pipeline type ultraviolet disinfection device (310).

6. The multi-process combination multi-barrier real-time monitoring and reduction of organic matter in water system of the waterworks according to claim 5, characterized in that, The ultraviolet-advanced oxidation device further includes an oxidant dosing device (320).

7. The multi-process combination and multi-barrier real-time monitoring system for reducing organic matters in water of a waterworks according to claim 6, characterized in that, The oxidant dosing device (320) is arranged at the front end of the pipeline type ultraviolet disinfection device (310).

8. The multi-process combination and multi-barrier real-time monitoring system for reducing organic matters in water of a waterworks according to claim 1, characterized in that, The biological filter (200) is a filter filled with granular activated carbon, sand filter media, zeolite media, or a filter formed by combining granular activated carbon media, sand filter media, and zeolite media with each other.

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