Water purification treatment system and process

Abstract

The invention relates to the technical field of water treatment, and particularly discloses a water purification treatment system and a water purification treatment process, and the water purification treatment process comprises the following steps: S1, carrying out residue crushing treatment on introduced sewage to obtain sewage with crushed residues; s2, preliminarily filtering the sewage with the crushed residues, and separating the crushed residues from the sewage to obtain preliminarily filtered sewage; s3, performing multi-stage fine filtration on the preliminarily filtered sewage to obtain treated water, obtaining discharge data of the treated water, obtaining a discharge value based on the discharge data, and if the discharge value of the treated water is within a discharge value range, discharging the treated water; according to the method, the discharge data of the treated water is acquired, namely the water quality purification data, the water quality suspended matter data and the water quality heavy metal data of the treated water are processed to obtain the treated water discharge value, and the treated water discharge value is compared with the treated water discharge value threshold value, so that whether the treated water reaches the discharge standard or not is identified; the discharge of treated water which does not reach the discharge standard is effectively prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment, and in particular to a water purification system and process. Background Art

[0002] Water treatment methods include physical and chemical treatment. Water treatment can reduce water pollution, remove or degrade harmful substances in wastewater, lower the level of contamination in natural water bodies, and protect the health and stability of the natural aquatic environment. Furthermore, water treatment can treat sewage or wastewater to produce high-quality water resources for human production and daily life, reducing the exploitation and loss of natural water resources and thus protecting the sustainable use of water resources.

[0003] For example, patent application number 202011070632.7 discloses a municipal sewage treatment process, which includes: performing residue crushing treatment on the introduced sewage to obtain sewage with crushed residue; performing preliminary filtration on the sewage with crushed residue to separate the crushed residue from the sewage to obtain preliminary filtered sewage; and performing multi-stage fine filtration on the preliminary filtered sewage to obtain sewage that meets the discharge standards.

[0004] The above scheme lacks detection of the sewage discharged after treatment, resulting in the inability to verify whether the treated sewage meets the discharge standards. At the same time, the treatment effect of the sewage treatment system over time cannot be effectively identified. Summary of the Invention

[0005] The purpose of the present invention is to provide a water purification system and process, which obtains the discharge data of treated water, that is, processes the water quality purification data, water quality suspended matter data and water quality heavy metal data of the treated water, obtains the treated water discharge value, and compares the treated water discharge value with the treated water discharge value threshold, thereby identifying whether the treated water meets the discharge standard and effectively preventing the discharge of treated water that does not meet the discharge standard.

[0006] The purpose of the present invention can be achieved through the following technical solutions: A water purification process comprises the following steps: S1: crushing the introduced sewage to obtain sewage with crushed residues; S2: Preliminary filtration of the sewage with crushed residues to separate the crushed residues from the sewage to obtain preliminarily filtered sewage; S3: performing multi-stage fine filtration on the preliminarily filtered sewage to obtain treated water, obtaining discharge data of the treated water, and obtaining a discharge value based on the discharge data. If the discharge value of the treated water is within the discharge value range, the treated water is discharged; Otherwise, the treated water is purified for the second time.

[0007] As a further technical solution of the present invention: in S3, the discharge data of the treated water includes water quality purification data, water quality suspended matter data and water quality heavy metal data; The purification factor is obtained by processing the water purification data; The suspension factor is obtained by processing the suspended matter data of water quality; The heavy metal factor is obtained by processing the water quality heavy metal data.

[0008] As a further technical solution of the present invention: the process of obtaining the discharge value of treated water includes: The purification factor of water quality purification data, the suspension factor of water quality suspended matter data and the heavy metal factor weight of water quality heavy metal data are calculated to obtain the treated water discharge value.

[0009] As a further technical solution of the present invention: presetting a treated water discharge value threshold PFy, and comparing the treated water discharge value PFi with the treated water discharge value threshold PFy; If the treated water discharge value is less than or equal to the treated water discharge value threshold, it means that the treated water meets the discharge standard and can be discharged; If the treated water discharge value is greater than the treated water discharge value threshold, it means that the treated water does not meet the discharge standard and cannot be discharged.

[0010] As a further technical solution of the present invention: the water purification data includes the ammonia nitrogen content, nitrate content and total phosphorus content in the treated water; By weighting the ammonia nitrogen content, nitrate content and total phosphorus content in the treated water, the purification factor of the water quality purification data is obtained.

[0011] As a further technical solution of the present invention: the water quality suspended solids data includes the total solids content and suspended solids content in the treated water; The total solid content in the treated water and the suspended solid content in the treated water are weighted to obtain the suspension factor of the water quality suspended solids data.

[0012] As a further technical solution of the present invention: the water quality heavy metal data includes mercury content, chromium content and lead content in the treated water; The mercury content, chromium content and lead content in treated water are weighted to obtain the heavy metal factor of the water quality heavy metal data.

[0013] As a further technical solution of the present invention: the treated water discharge value in S3 is obtained periodically, that is, the average of the treated water discharge values ​​of multiple periods is obtained; In the XY two-dimensional plane coordinate system, draw a straight line parallel to the X axis with the treated water discharge value W1 of the initial cycle, and record the straight line obtained by the treated water discharge value of the initial cycle as the baseline; The average values ​​of the treated water discharge values ​​in multiple cycles except the initial cycle are plotted and connected in chronological order on the XY two-dimensional plane coordinate system to obtain a treated water discharge waveform diagram; Draw perpendicular lines between the two end points of the treated water discharge waveform and the baseline to obtain a closed diagram of the treated water discharge waveform; Obtain the image area above the baseline in the closed diagram of the treated water discharge waveform, record the image area above the baseline as the positive image area, and mark the positive image area as +S; Obtain the image area below the baseline in the closed diagram of the treated water discharge waveform, record the image area below the baseline as the negative image area, and mark the negative image area as -S; The positive image area marked as +S and the negative image area marked as -S are added to obtain the estimated treated water discharge area Si; If the estimated treated water discharge area Si is less than 0, it means that the treatment effect of the water purification system gradually deteriorates over time; If the estimated treated water discharge area Si0 is greater than or equal to 0, it means that the treatment effect of the water purification system remains constant over time.

[0014] As a further technical solution of the present invention: the process of obtaining the mean value of the treated water discharge value is: Obtain the treated water discharge value for each day in the cycle, sum and average the treated water discharge values ​​for each day in the cycle, that is, obtain the average treated water discharge value, and average the treated water discharge values ​​in each cycle.

[0015] A water purification system is used for discharging treated water during a water purification process, specifically comprising: Data acquisition module The data acquisition module is used to collect the treated water discharge data, including water quality purification data, water quality suspended matter data, and water quality heavy metal data. The data acquisition module transmits the obtained treated water discharge data to the cloud management and control platform; Data analysis module The data analysis module receives the treated water discharge data from the cloud management and control platform, obtains the treated water discharge value based on the processing of the treated water discharge data, and sends the treated water discharge value to the cloud management and control platform; Decision Analysis Module The decision analysis module receives the treated water discharge value from the cloud management and control platform, presets the treated water discharge value threshold PFy, and compares the treated water discharge value PFi with the treated water discharge value threshold PFy; If the treated water discharge value is less than or equal to the treated water discharge value threshold, it means that the treated water meets the discharge standard and can be discharged; If the treated water discharge value is greater than the treated water discharge value threshold, it means that the treated water does not meet the discharge standard and cannot be discharged; Processing and identification module Obtain the average value of the treated water discharge value in each cycle, and identify the treatment effect of the water purification system based on the average value of the treated water discharge value of multiple cycles; Identification of the treatment effect of the water purification system includes the following: the treatment effect of the water purification system gradually deteriorates over time and the treatment effect of the water purification system remains constant over time; When the treatment effect of the water purification system gradually deteriorates over time, the estimated failure time of the water purification system is estimated.

[0016] Beneficial effects of the present invention: (1) The present invention obtains the treated water discharge data, that is, processes the treated water purification data, water suspended matter data, and water heavy metal data to obtain the treated water discharge value, and compares the treated water discharge value with the treated water discharge value threshold, thereby identifying whether the treated water meets the discharge standard and effectively preventing the discharge of treated water that does not meet the discharge standard; (2) The present invention processes the average value of the treated water discharge value within multiple cycles, that is, it can identify the treatment effect of the water purification system within multiple cycles, and the treatment effect of the water purification system gradually deteriorates with time and the treatment effect of the water purification system remains constant with time; when the treatment effect of the water purification system gradually deteriorates with time, the estimated failure time of the water purification system is estimated, so that the management personnel can effectively monitor the water purification timeliness of the water purification system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a flow chart of a water purification process of the present invention; Figure 2 It is a flowchart of a water purification system of the present invention. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention. Example 1

[0020] See also Figure 1 As shown, the present invention is a water purification process, comprising the following steps: S1: crushing the introduced sewage to obtain sewage with crushed residues; S2: Preliminary filtration of the sewage with crushed residues to separate the crushed residues from the sewage to obtain preliminarily filtered sewage; S3: performing multi-stage fine filtration on the preliminarily filtered sewage to obtain treated water, obtaining discharge data of the treated water, and obtaining a discharge value based on the discharge data. If the discharge value of the treated water is within the discharge value range, the treated water is discharged; Otherwise, the treated water is purified for the second time.

[0021] Among them, in S3, the treated water discharge data includes water quality purification data, water quality suspended matter data and water quality heavy metal data; Water purification data include ammonia nitrogen content, nitrate content and total phosphorus content in treated water; By weighting the ammonia nitrogen content, nitrate content and total phosphorus content in the treated water, the purification factor of the water quality purification data is obtained; In a specific embodiment, the ammonia nitrogen content in the treated water is marked as C1, the nitrate content in the treated water is marked as C2, and the total phosphorus content in the treated water is marked as C3, and weighted processing is performed to obtain the purification factor Ci of the water quality purification data; The weight ratio of the ammonia nitrogen content C1 in the treated water is assigned to q1, the weight ratio of the nitrate content C2 in the treated water is assigned to q2, and the weight ratio of the total phosphorus content C3 in the treated water is assigned to q3; Water quality suspended solids data include total solids and suspended solids in treated water; The total solid content in the treated water is marked as G1; The amount of suspended solids in the treated water is marked as G2; The total solid content in the treated water and the weight of the suspended solid content in the treated water are calculated to obtain the suspension factor of the water quality suspended solids data. Among them, the weight coefficient of the total solid content in the treated water is 0.361, and the weight coefficient of the suspended solid content in the treated water is 0.639; Water quality heavy metal data include mercury, chromium, and lead levels in treated water; The mercury content, chromium content, and lead content in the treated water are weighted to obtain the heavy metal factor Zi of the water quality heavy metal data; among which, the weight coefficient of the mercury content in the treated water is 0.216, the weight coefficient of the chromium content in the treated water is 0.357, and the weight coefficient of the lead content in the treated water is 0.427; The treated water discharge value is obtained by processing the purification factor Ci of water quality purification data, the suspended matter factor Gi of water quality suspended matter data and the heavy metal factor Zi of water quality heavy metal data; The purification factor of the water quality purification data, the suspension factor of the water quality suspended matter data, and the heavy metal factor of the water quality heavy metal data are weighted to obtain the treated water discharge value, wherein the weight coefficient of the purification factor of the water quality purification data is 0.312, the weight coefficient of the suspension factor of the water quality suspended matter data is 0.358, and the weight coefficient of the heavy metal factor of the water quality heavy metal data is 0.330; Preset a treated water discharge value threshold value, and compare the treated water discharge value with the treated water discharge value threshold value; If the treated water discharge value is less than or equal to the treated water discharge value threshold, it means that the treated water meets the discharge standard and can be discharged; If the treated water discharge value is greater than the treated water discharge value threshold, it means that the treated water does not meet the discharge standard and cannot be discharged.

[0022] Obtain the treated water discharge value in S3 by period, that is, obtain the average treated water discharge value of each period; In this embodiment, 7 days constitutes one cycle; The process of obtaining the mean value of treated water discharge is as follows: Obtain the treated water discharge value for each day within the period, sum and average the treated water discharge values ​​for each day within the period, and obtain the mean treated water discharge value. The mean treated water discharge value within each period is recorded as Wi; Obtain the average value Wi of the treated water discharge value in multiple cycles, establish an XY two-dimensional plane coordinate system, with the X-axis as the number of cycles and the Y-axis as the average value of the treated water discharge value, preset the treated water discharge value of the initial cycle as W1, and in the XY two-dimensional plane coordinate system, draw a straight line parallel to the X-axis with the treated water discharge value W1 of the initial cycle, and record the straight line obtained from the treated water discharge value of the initial cycle as the baseline; The initial period of the treated water discharge value is the first period in chronological order of the multiple periods; The average values ​​of the treated water discharge values ​​in multiple cycles except the initial cycle are plotted in the XY two-dimensional plane coordinate system in chronological order, and the average values ​​of the treated water discharge values ​​in multiple cycles are connected from left to right with a smooth curve to obtain a treated water discharge waveform diagram; Draw perpendicular lines between the two end points of the treated water discharge waveform and the baseline to obtain a closed diagram of the treated water discharge waveform; Obtain the image area above the baseline in the closed diagram of the treated water discharge waveform, record the image area above the baseline as the positive image area, and mark the positive image area as +S; Obtain the image area below the baseline in the closed diagram of the treated water discharge waveform, record the image area below the baseline as the negative image area, and mark the negative image area as -S; The positive image area marked as +S and the negative image area marked as -S are added to obtain the estimated treated water discharge area Si; If the estimated treated water discharge area Si is less than 0, it means that the treatment effect of the water purification system gradually deteriorates over time; If the estimated treated water discharge area Si0 is greater than or equal to 0, it means that the treatment effect of the water purification system remains constant over time.

[0023] When the treatment effect of the water purification system gradually deteriorates over time, the ratio of the estimated treated water discharge area to all cycles is calculated to obtain the estimated treated water discharge area ratio; The preset treated water discharge estimated area threshold is Sy. When the treated water discharge estimated area reaches the treated water discharge estimated area threshold, it indicates that the water purification system has a purification failure. The difference between the treated water discharge estimated area threshold and the treated water discharge estimated area is calculated to obtain the treated water discharge estimated area difference, and the ratio of the treated water discharge estimated area difference to the treated water discharge estimated area ratio is calculated to obtain the estimated failure time of the water purification system. Example 2

[0024] See also Figure 2 As shown, the present invention is a water purification system, which is used for discharging treated water in a water purification process, and specifically includes: Data acquisition module The data acquisition module is used to collect the treated water discharge data, including water quality purification data, water quality suspended matter data, and water quality heavy metal data. The data acquisition module transmits the obtained treated water discharge data to the cloud management and control platform; Data analysis module The data analysis module receives the treated water discharge data from the cloud management and control platform, obtains the treated water discharge value based on the processing of the treated water discharge data, and sends the treated water discharge value to the cloud management and control platform; Decision Analysis Module The decision analysis module receives the treated water discharge value from the cloud management and control platform, presets the treated water discharge value threshold PFy, and compares the treated water discharge value PFi with the treated water discharge value threshold PFy; If the treated water discharge value is less than or equal to the treated water discharge value threshold, it means that the treated water meets the discharge standard and can be discharged; If the treated water discharge value is greater than the treated water discharge value threshold, it means that the treated water does not meet the discharge standard and cannot be discharged; Processing and identification module Obtain the average value of the treated water discharge value in each cycle, and identify the treatment effect of the water purification system based on the average value of the treated water discharge value of multiple cycles; Identification of the treatment effect of the water purification system includes the following: the treatment effect of the water purification system gradually deteriorates over time and the treatment effect of the water purification system remains constant over time; When the treatment effect of the water purification system gradually deteriorates over time, the estimated failure time of the water purification system is estimated.

[0025] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A water purification process, characterized in that: The following steps are involved: S1: crushing the introduced sewage to obtain sewage with crushed residues; S2: Preliminary filtration of the sewage with crushed residues to separate the crushed residues from the sewage to obtain preliminarily filtered sewage; S3: performing multi-stage fine filtration on the preliminarily filtered sewage to obtain treated water, obtaining discharge data of the treated water, and obtaining a discharge value based on the discharge data. If the discharge value of the treated water is within the discharge value range, the treated water is discharged; Otherwise, the treated water is purified for the second time.

2. A water purification process according to claim 1, characterized in that: In S3, the treated water discharge data includes water purification data, water suspended matter data, and water heavy metal data; The purification factor is obtained by processing the water purification data; The suspension factor is obtained by processing the suspended matter data of water quality; The heavy metal factor is obtained by processing the water quality heavy metal data.

3. A water purification process according to claim 2, characterized in that: The process of obtaining the discharge value of treated water includes: The purification factor of water quality purification data, the suspension factor of water quality suspended matter data and the heavy metal factor weight of water quality heavy metal data are calculated to obtain the treated water discharge value.

4. A water purification process according to claim 3, characterized in that: Preset the treated water discharge value threshold PFy, and compare the treated water discharge value PFi with the treated water discharge value threshold PFy; If the treated water discharge value is less than or equal to the treated water discharge value threshold, it means that the treated water meets the discharge standard and can be discharged; If the treated water discharge value is greater than the treated water discharge value threshold, it means that the treated water does not meet the discharge standard and cannot be discharged.

5. A water purification process according to claim 2, characterized in that: Water purification data include ammonia nitrogen content, nitrate content and total phosphorus content in treated water; By weighting the ammonia nitrogen content, nitrate content and total phosphorus content in the treated water, the purification factor of the water quality purification data is obtained.

6. A water purification process according to claim 2, characterized in that: Water quality suspended solids data include total solids and suspended solids in treated water; The total solid content in the treated water and the suspended solid content in the treated water are weighted to obtain the suspension factor of the water quality suspended solids data.

7. A water purification process according to claim 2, characterized in that: Water quality heavy metal data include mercury, chromium, and lead levels in treated water; The mercury content, chromium content and lead content in treated water are weighted to obtain the heavy metal factor of the water quality heavy metal data.

8. A water purification process according to claim 1, characterized in that: Obtain the treated water discharge value in S3 by period, that is, obtain the average of the treated water discharge values ​​of multiple periods; In the XY two-dimensional plane coordinate system, draw a straight line parallel to the X axis with the treated water discharge value W1 of the initial cycle, and record the straight line obtained by the treated water discharge value of the initial cycle as the baseline; The average values ​​of the treated water discharge values ​​in multiple cycles except the initial cycle are plotted and connected in chronological order on the XY two-dimensional plane coordinate system to obtain a treated water discharge waveform diagram; Draw perpendicular lines between the two end points of the treated water discharge waveform and the baseline to obtain a closed diagram of the treated water discharge waveform; Obtain the image area above the baseline in the closed diagram of the treated water discharge waveform, record the image area above the baseline as the positive image area, and mark the positive image area as +S; Obtain the image area below the baseline in the closed diagram of the treated water discharge waveform, record the image area below the baseline as the negative image area, and mark the negative image area as -S; The positive image area marked as +S and the negative image area marked as -S are added to obtain the estimated treated water discharge area Si; If the estimated treated water discharge area Si is less than 0, it means that the treatment effect of the water purification system gradually deteriorates over time; If the estimated treated water discharge area Si0 is greater than or equal to 0, it means that the treatment effect of the water purification system remains constant over time.

9. A water purification process according to claim 8, characterized in that: The process of obtaining the mean value of treated water discharge is as follows: Obtain the treated water discharge value for each day in the cycle, sum and average the treated water discharge values ​​for each day in the cycle, that is, obtain the average treated water discharge value, and average the treated water discharge values ​​in each cycle.

10. A water purification system, characterized in that: The water purification system is used to discharge treated water during the water purification process, specifically including: Data acquisition module The data acquisition module is used to collect the treated water discharge data, including water quality purification data, water quality suspended matter data, and water quality heavy metal data. The data acquisition module transmits the obtained treated water discharge data to the cloud management and control platform; Data analysis module The data analysis module receives the treated water discharge data from the cloud management and control platform, obtains the treated water discharge value based on the processing of the treated water discharge data, and sends the treated water discharge value to the cloud management and control platform; Decision Analysis Module The decision analysis module receives the treated water discharge value from the cloud management and control platform, presets the treated water discharge value threshold PFy, and compares the treated water discharge value PFi with the treated water discharge value threshold PFy; If the treated water discharge value is less than or equal to the treated water discharge value threshold, it means that the treated water meets the discharge standard and can be discharged; If the treated water discharge value is greater than the treated water discharge value threshold, it means that the treated water does not meet the discharge standard and cannot be discharged; Processing and identification module Obtain the average value of the treated water discharge value in each cycle, and identify the treatment effect of the water purification system based on the average value of the treated water discharge value of multiple cycles; Identification of the treatment effect of the water purification system includes the following: the treatment effect of the water purification system gradually deteriorates over time and the treatment effect of the water purification system remains constant over time; When the treatment effect of the water purification system gradually deteriorates over time, the estimated failure time of the water purification system is estimated.

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