CN209989174U - Zero-emission automatic treatment system for phosphorus-containing industrial wastewater - Google Patents
Zero-emission automatic treatment system for phosphorus-containing industrial wastewater Download PDFInfo
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- CN209989174U CN209989174U CN201920414951.1U CN201920414951U CN209989174U CN 209989174 U CN209989174 U CN 209989174U CN 201920414951 U CN201920414951 U CN 201920414951U CN 209989174 U CN209989174 U CN 209989174U
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Abstract
The utility model discloses a zero-discharge automatic treatment system for phosphorus-containing industrial wastewater, which comprises a regulating tank, a sequencing batch wastewater treatment tank, an intermediate water tank and a reuse water tank which are sequentially connected, wherein a bag filter is arranged between the intermediate water tank and the reuse water tank; also comprises a sludge concentration tank and a stacked screw type sludge dewatering machine. The sludge concentration tank is respectively connected with the adjusting tank, the sequencing batch wastewater treatment tank and the stacked screw type sludge dewatering machine; a frame type stirrer connected with a PLC industrial personal computer control cabinet, an ultrasonic mud level meter, a first dosing pump, a first PH value on-line measuring instrument and a time control meter are arranged in the sequencing batch wastewater treatment tank; a second medicine feeding pump and a second PH value on-line measuring instrument which are connected with the PLC industrial control machine control cabinet are arranged in the pipeline between the bag filter and the recycling water tank. The system has the advantages of small occupied area, low investment cost, small environmental influence and high automation degree, and is suitable for treating high-phosphorus-content industrial wastewater.
Description
Technical Field
The utility model relates to an industrial wastewater treatment field especially indicates a processing system of phosphorus-containing industrial wastewater.
Background
Using Phosphine (PH)3) After the gas is fumigated and the insect is killed, the toxic tail gas containing phosphine gas in the storehouse can cause harm to the safety of people and the surrounding atmospheric environment, and needs to be subjected to harmless treatment. The tail gas treatment adopts a solution absorption process, and a certain amount of phosphorus-containing wastewater can be generated. Direct discharge into sewage or outward transportation treatment is generally adopted in the industry.
The waste water after reaction is characterized by high salt content, high phosphorus content and more suspended particles. The wastewater cannot directly enter domestic sewage treatment equipment for treatment, and the conventional mode is that the wastewater is transported by a special treatment company for treatment, and each ton of wastewater generates high treatment cost (the treatment cost of each ton of phosphorus-containing wastewater is 400 yuan). Therefore, a set of sewage treatment equipment for effectively treating phosphorus-containing wastewater is urgently needed to be designed so as to effectively reduce the cost of fumigation and pest killing.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the prior art, the utility model provides a zero-discharge automatic treatment system for phosphorus-containing industrial wastewater. The system has the advantages of small occupied area, low investment cost, small environmental influence and high automation degree, and is suitable for treating high-phosphorus-content industrial wastewater.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a zero-emission automatic treatment system for phosphorus-containing industrial wastewater comprises a regulating tank, a sequencing batch wastewater treatment tank, an intermediate water tank and a reuse water tank which are sequentially connected, wherein a bag filter is arranged between the intermediate water tank and the reuse water tank; the system also comprises a sludge concentration tank and a stacked screw type sludge dewatering machine, wherein the sludge concentration tank is respectively connected with the regulating tank, the sequencing batch wastewater treatment tank and the stacked screw type sludge dewatering machine; a frame type stirrer connected with a PLC industrial personal computer control cabinet, an ultrasonic liquid level meter, a first dosing pump, a first PH value online tester and a time control meter are arranged in the sequencing batch wastewater treatment tank; a second medicine feeding pump and a second PH value on-line measuring instrument which are connected with the PLC industrial control machine control cabinet are arranged in the pipeline between the bag filter and the recycling water tank.
According to the automatic zero-discharge treatment system for phosphorus-containing industrial wastewater, the filtrate storage tank is also arranged between the sludge concentration tank and the regulating tank.
Compared with the prior art, the utility model provides a technical scheme has following beneficial effect:
the utility model discloses effluent disposal system adopts the sequencing batch formula effluent disposal, is equipped with frame mixer, ultrasonic wave level gauge and pH value on-line measuring appearance in the pond of sequencing batch formula integration effluent disposal pond. The frame-type stirrer is suitable for stirring high-concentration slurry, utilizes the ultrasonic level meter to accurately determine the height of sludge, utilizes the pH value on-line measuring instrument, conveniently judges the pH value of phosphorus-containing industrial wastewater, and more accurately determines NAOH and FeSO4Addition amounts of PAM and PAC. The whole phosphorus-containing wastewater treatment system is controlled by a PLC management system, and the supernatant of the treated phosphorus-containing wastewater can be used as reclaimed water for greening and cleaning road surfaces; the sludge can be entrusted to qualified units for treatment. Compare with current phosphorus-containing industrial waste water treatment process, the utility model discloses area is little, and the input cost is low, and automatic level is high, and the water resource rate of recycling is high, is suitable for to handle high phosphorus-containing industrial waste water, can realize waste water's zero release.
Drawings
The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:
FIG. 1 is a schematic view of the working principle of the zero-discharge automatic treatment system for phosphorus-containing industrial wastewater of the present invention.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention clearer and more obvious, the following description of the present invention with reference to the accompanying drawings and embodiments is provided for further details. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
In the claims, the specification and the drawings, unless otherwise expressly limited, the terms "first," "second," or "third," etc. are used for distinguishing between different elements and not for describing a particular sequence.
In the claims, the specification and the drawings, unless otherwise expressly limited, to the extent that directional terms such as "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise" and the like are used, the positional or orientational relationships illustrated in the drawings are based on the positional and orientational relationships illustrated in the drawings and are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present invention in any way.
In the claims, the description and the drawings of the present application, unless otherwise expressly limited, the term "fixedly connected" or "fixedly connected" is used, which is to be understood broadly, that is, any connection mode without displacement relation or relative rotation relation between the two, that is, including non-detachably fixed connection, integrated connection and fixed connection through other devices or elements.
In the claims, the specification and the drawings, the terms "including", "comprising" and variations thereof, if used, are intended to be inclusive and not limiting.
Referring now to fig. 1, the zero discharge automatic treatment system for phosphorus-containing industrial wastewater of the present invention comprises a conditioning tank 10, a batch wastewater treatment tank 20, an intermediate water tank 30 and a recycling water tank 40, which are connected in sequence, and a bag filter 50 is disposed between the intermediate water tank 30 and the recycling water tank 40. The utility model discloses phosphorus-containing industrial waste water's zero release automatic processing system is still including a sludge thickening tank 60 and fold spiral shell formula sludge dewaterer 70, and this sludge thickening tank 60 meets with equalizing basin 10, sequencing batch formula wastewater treatment pond 20 and fold spiral shell formula sludge dewaterer 70 respectively. The utility model discloses phosphorus-containing industrial waste water' S zero release automatic processing system controls through the PLC management system of PLC industrial computer switch board (Siemens S200), and PLC industrial computer switch board passes through input device running state, trouble, signals such as unusual, through operation of each electrical equipment of controller, motorised valve switch, unusual warning etc. concentrates on showing and all equipment operation condition of automatic control. The automatic zero-discharge treatment system for phosphorus-containing industrial wastewater is integrated with a sewage station operation system and serves as a subsystem of the sewage operation system.
Phosphine (PH)3) After the gas is fumigated and the insect is killed, toxic tail gas containing phosphine gas in a storehouse is subjected to a solution absorption process, phosphorus-containing wastewater discharged by a phosphine filter absorber is collected by a pipeline and then enters an adjusting tank 10 for water quality and water quantity adjustment, and the adjusting tank 10 aims to reduce the influence on a subsequent treatment structure to the greatest extent when the fluctuation of the quality and the water quantity of the incoming water is great as possible, and then the incoming water enters a sequencing batch wastewater treatment tank 20 by a pipeline.
A frame type stirrer connected with a PLC industrial control machine control cabinet, an ultrasonic mud level meter, a first dosing pump, a first PH value on-line measuring instrument and a time control meter are arranged in the sequencing batch wastewater treatment tank 20. Frame mixer is applicable to the stirring of high concentration slurry in the sequencing batch wastewater treatment pond, utilizes the ultrasonic level gauge can be accurate confirm the height of the interior sewage of sequencing batch wastewater treatment pond, utilizes the online apparatus of pH value, can judge the pH value of the interior phosphorus-containing waste water of sequencing batch wastewater treatment pond, the more accurate addition of confirming NaOH, FeSO4, PAM, PAC. When the ultrasonic level meter detects that the water level of the sequencing batch wastewater treatment tank reaches the set highest water level, a first dosing pump is started to add NaOH, wherein the addition amount of the NaOH is controlled by a first PH value online tester, and the rest of FeSO4, PAM and PAC are subjected to time quantitative control by a time control meter.
After all the phosphorus-containing wastewater discharged by the phosphine filter absorber enters the sequencing batch wastewater treatment tank, NaOH is added to adjust the pH value of the wastewater from PH9 to about PH11 so that the wastewater is subjected to chemical reaction in an alkaline environment, and then PAC, PAM and FeSO4 are added in sequence, so that the precipitation efficiency of Ca5(OH) (PO4)3 is further improved, and the aim of removing phosphate ions is fulfilled. At this time, the concentration of total phosphorus in the wastewater is about 1.0mg/L, and cannot reach 0.5mg/L required in the first-level discharge standard. The steps are divided into two batches and completed in the same sequencing batch wastewater treatment tank 20.
Specifically, NaOH and FeSO are added in the first batch of reaction4PAM, through deposiing the back, through setting up the row mud pipeline in the formula wastewater treatment pond bottom of prefacing to the formula, discharge bottom mud into sludge thickening pond 60, the second batch reaction is carried out again in this formula wastewater treatment pond to the supernatant.
In the second batch of reaction, NaOH, PAC and PAM are added, wastewater after coagulation stirring reaction of the frame type stirrer is precipitated, bottom sludge is discharged into a sludge concentration tank 60 through a sludge discharge pipeline arranged at the bottom of the sequencing batch wastewater treatment tank, and supernatant is pumped to an intermediate water tank 30.
The supernatant in the intermediate water tank 30 is pumped to a bag filter 50 by a water pump for filtering, and suspended matters and phosphate substances in the water are further removed, so that the concentration of total phosphorus in the wastewater reaches 0.5mg/L required in the primary discharge standard.
The effluent of the bag filter is alkaline, and the pH value of clear liquid needs to be adjusted. Specifically, the pH value of the solution is adjusted back in the pipeline between the bag filter 50 and the recycling water tank 40, namely H is added through a second dosing pump connected with a PLC industrial control cabinet2SO4And (4) adjusting the pH value of the clear liquid back, measuring the pH value of the clear liquid by a second pH value on-line measuring instrument connected with a PLC industrial control cabinet, adjusting the pH value to 6-9, then feeding the clear liquid into a recovery water tank 40 to be used as a reclaimed water source of a reservoir area, and using the treated phosphorus-containing wastewater as reclaimed water for greening and cleaning pavements.
The sludge discharged into the sludge concentration tank 60 is precipitated, the precipitated sludge generated after the precipitation is conveyed to the stacked screw type sludge dewatering machine 70 by a sludge pump, the sludge conveyed to the stacked screw type sludge dewatering machine 70 is dewatered, the main component of the sludge is calcium phosphate, part of the sludge also contains calcium hydroxide, calcium carbonate and the like, and the sludge is entrusted with a qualification unit for treatment. The filtrate and supernatant produced by settling the sludge discharged into the sludge concentration tank 60 are discharged into a filtrate reservoir 80 and then pumped into the adjusting tank 10.
While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (2)
1. A zero-emission automatic treatment system for phosphorus-containing industrial wastewater is characterized by comprising a regulating tank (10), a sequencing batch wastewater treatment tank (20), an intermediate water tank (30) and a reuse water tank (40) which are sequentially connected, wherein a bag filter (50) is arranged between the intermediate water tank (30) and the reuse water tank (40); the system also comprises a sludge concentration tank (60) and a stacked screw type sludge dewatering machine (70), wherein the sludge concentration tank (60) is respectively connected with the adjusting tank (10), the sequencing batch wastewater treatment tank (20) and the stacked screw type sludge dewatering machine (70); a frame type stirrer connected with a PLC industrial control machine control cabinet, an ultrasonic liquid level meter, a first dosing pump, a first PH value on-line measuring instrument and a time control meter are arranged in the sequencing batch wastewater treatment tank (20); a second medicine feeding pump and a second PH value on-line measuring instrument which are connected with a PLC industrial control machine control cabinet are arranged in a pipeline between the bag filter (50) and the recycling water tank (40).
2. The automatic zero-discharge treatment system for phosphorus-containing industrial wastewater according to claim 1, characterized in that a filtrate storage tank (80) is arranged between the sludge concentration tank (60) and the adjusting tank (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920414951.1U CN209989174U (en) | 2019-03-29 | 2019-03-29 | Zero-emission automatic treatment system for phosphorus-containing industrial wastewater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920414951.1U CN209989174U (en) | 2019-03-29 | 2019-03-29 | Zero-emission automatic treatment system for phosphorus-containing industrial wastewater |
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| CN209989174U true CN209989174U (en) | 2020-01-24 |
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| CN201920414951.1U Expired - Fee Related CN209989174U (en) | 2019-03-29 | 2019-03-29 | Zero-emission automatic treatment system for phosphorus-containing industrial wastewater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112525522A (en) * | 2020-11-27 | 2021-03-19 | 厦门烟草工业有限责任公司 | Steam discharge detection device of condensation water pipe network |
-
2019
- 2019-03-29 CN CN201920414951.1U patent/CN209989174U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112525522A (en) * | 2020-11-27 | 2021-03-19 | 厦门烟草工业有限责任公司 | Steam discharge detection device of condensation water pipe network |
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Granted publication date: 20200124 |