Phosphorus-containing waste liquid treatment system

By designing a phosphorus-containing wastewater treatment system and utilizing methods such as filter jackets, phenolphthalein detection, and jacket temperature control, the problems of complexity and high cost of existing systems have been solved, achieving efficient phosphorus wastewater treatment and recycling.

CN223752526UActive Publication Date: 2026-01-02江苏柏环环境科技有限公司
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Patent Information

Application Number
CN202423247974.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2026-01-02
Estimated Expiration
2034-12-27

AI Technical Summary

Technical Problem

Existing phosphorus-containing wastewater treatment systems are complex in structure, costly, and have unsatisfactory treatment effects, making it difficult to effectively remove and recover phosphorus.

Method used

A phosphorus-containing waste liquid treatment system was designed, including a waste liquid storage tank, a hydrolysis reactor, a condenser, a recovery device, a gas washing bottle, a buffer tank, and a vacuum pump. The waste liquid is initially filtered through a filter sleeve, and the reaction progress is monitored using phenolphthalein. A jacket and temperature control device are installed in the hydrolysis reactor to recover condensate and non-condensable gases, and to ensure the safety of the vacuum pump.

Benefits of technology

It achieves the treatment of phosphorus-containing wastewater with simple structure, high safety and good stability, effectively removes large particulate matter, improves hydrolysis reaction efficiency, ensures stable operation of experiments, and enables resource recycling.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a phosphorus-containing waste liquid treatment system, which belongs to the technical field of waste liquid treatment and comprises a waste liquid storage tank, a hydrolysis reaction kettle, a condensation pipe, a recovery device, a gas washing bottle, a buffer tank and a vacuum pump. The outlet end of the waste liquid storage tank is communicated with the inlet end of the hydrolysis reaction kettle through a pipeline, the outlet end of the hydrolysis reaction kettle is communicated with the inlet end of the condensation pipe through a pipeline, the inlet end of the condensation pipe is further provided with a recovery pipeline, and the recovery pipeline is communicated with the recovery device to recover condensed liquid after condensation. The outlet end of the condensation pipe is communicated with a gas inlet pipe of the gas washing bottle to convey non-condensable gas, a gas outlet pipe of the gas washing bottle is communicated with an inlet of the buffer tank, and an outlet of the buffer tank leads the non-condensable gas to the induced air cabinet for exhausting through a pipeline and a vacuum pump; the system is simple in structure, reasonable in design, capable of effectively treating and recycling phosphorus-containing waste liquid, high in safety and good in stability.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a waste liquid treatment system, concretely relates to a phosphorus-containing waste liquid treatment system, belongs to the technical field of waste liquid treatment. BACKGROUND

[0002] Since the 21st century, with the high-speed growth of China's GDP, the chemical industry as the economic pillar develops particularly rapidly, but the environmental problems caused thereby are also increasingly serious, among which, the purification treatment problem of waste liquid becomes a major research hotspot in the environmental field, phosphorus as an indispensable element of living organisms occupies an extremely important position, however, when the phosphorus content in liquid exceeds the standard, it will promote the overpopulation of algae, destroy the balance of the original water body, cause eutrophication pollution, and further pollute the water source.

[0003] Waste liquid treatment is to treat waste liquid by using physical, chemical and biological methods, purify waste liquid, reduce pollution, so as to achieve waste liquid treatment, recycling and reuse, fully utilize water resources, at present, the treatment system of phosphorus-containing waste liquid generally adds phosphorus-removing solvent to waste liquid, waits for the mixed reaction of both to purify the phosphorus element in waste liquid, the treatment effect of such system is not ideal, the system structure is complex, and the cost is high; hydrolysis is a new direction of development of waste liquid resource utilization technology, which has the advantages of high resource utilization efficiency and good harmlessness effect, effectively solves the problems existing in the process of waste liquid resource utilization, therefore, many research teams in China are engaged in the research of waste liquid hydrolysis treatment, in order to analyze the change of waste liquid composition before and after hydrolysis, explore the best process, provide a system suitable for laboratory to carry out small test research of waste liquid treatment, which becomes a technical problem to be solved by the technical personnel in the field. CONTENT OF THE UTILITY MODEL

[0004] The utility model solves the technical problem that the existing technology overcomes the shortcomings, provides a phosphorus-containing waste liquid treatment system, the system structure is simple, reasonable in design, effectively treats and recycles the phosphorus-containing waste liquid, is high in safety and good in stability.

[0005] In order to solve the above technical problem, the utility model provides a phosphorus-containing waste liquid treatment system, which comprises a waste liquid storage tank, a hydrolysis reaction kettle, a condenser pipe, a recovery device, a gas washing bottle, a buffer tank and a vacuum pump, the collected phosphorus-containing waste liquid is transported to the waste liquid storage tank through the water pump, the outlet end of the waste liquid storage tank is communicated with the inlet end of the hydrolysis reaction kettle through the pipeline, the outlet end of the hydrolysis reaction kettle is communicated with the inlet end of the condenser pipe through the pipeline, the inlet end of the condenser pipe is also provided with a recovery pipeline, the recovery pipeline is communicated with the recovery device to recover the condensed liquid after condensation, the outlet end of the condenser pipe is communicated with the gas inlet pipe of the gas washing bottle to transport the non-condensable gas, the gas outlet pipe of the gas washing bottle is communicated with the inlet of the buffer tank, and the outlet of the buffer tank is communicated with the fume hood through the pipeline and the vacuum pump to exhaust the non-condensable gas.

[0006] The utility model further limits the technical scheme:

[0007] Further, the waste liquid storage tank comprises a tank body and a filter sleeve, and the filter sleeve is arranged in the tank body.

[0008] The upper end of the tank body is open, and the lower end of one side of the tank body is provided with a discharge pipe in communication with the tank body.

[0009] The filter sleeve comprises a filter sleeve body and an extension plate, the filter sleeve body is a hollow inverted circular table structure with an open upper end, the upper end of the filter sleeve body extends outward horizontally to form the extension plate on both sides, and the extension plate is arranged at the edge of the upper end of the tank body so that the filter sleeve body is suspended in the tank body.

[0010] The utility model has the technical effects that the filter sleeve is arranged in the waste liquid storage tank, the collected waste liquid can be preliminarily filtered, the granular substances are filtered out, the phospholipid solids with high content and possibly agglomerated are pretreated, subsequent hydrolysis is facilitated, the large-particle substances are removed to reduce damage to the stirring device during stirring and abrasion of the reaction kettle, the waste liquid is cleaner, and efficient reaction is achieved.

[0011] In the aforementioned phosphorus-containing waste liquid treatment system, a discharge valve is arranged on the discharge pipe.

[0012] The utility model has the technical effects that the discharge valve is arranged on the discharge pipe, effective control is facilitated, the controllability of the overall experiment is improved, the discharge valve can be opened and stopped at any time, and use is convenient.

[0013] In the aforementioned phosphorus-containing waste liquid treatment system, deionized water is arranged in the gas washing bottle, and phenolphthalein is added dropwise in the deionized water.

[0014] The utility model has the technical effects that phenolphthalein is added dropwise in the gas washing bottle, phenolphthalein is an acid dissociation indicator used for detecting whether the hydrolysis reaction is completed, if there is a problem, the problem can be adjusted at any time, the problem can be found and adjusted in time, and normal operation of work is ensured.

[0015] In the aforementioned phosphorus-containing waste liquid treatment system, the recovery device comprises a recovery tank, the recovery tank is connected with the recovery pipeline on the condenser through a pipeline, one side of the recovery tank is provided with an outlet pipe, and an outlet valve is arranged on the outlet pipe.

[0016] The utility model has the technical effects that the condensate is collected in time through the recovery device, and then the phosphorus is recovered and treated through existing methods such as evaporation crystallization, and resource recycling is achieved.

[0017] In the aforementioned phosphorus-containing waste liquid treatment system, a jacket is arranged on the bottom of the hydrolysis reaction kettle, and a temperature adjusting device is arranged in the jacket.

[0018] Technical effects, the temperature of the jacket is adjusted, the temperature of the laboratory hydrolysis reaction kettle is adjusted, the hydrolysis effect is effectively improved, and the efficiency is improved.

[0019] In the aforementioned phosphorus-containing waste liquid treatment system, the temperature adjusting device is a temperature adjusting coil.

[0020] Technical effects, the temperature adjusting coil can be arranged around the jacket to uniformly heat the laboratory hydrolysis reaction kettle, effectively improving the hydrolysis effect.

[0021] The beneficial effects of the present application are:

[0022] The condenser condenses and recovers the waste gas after hydrolysis, and non-condensable gas is discharged. When the non-condensable gas is discharged, it is necessary to check whether the hydrolysis process is completed. The hydrolysis process is understood by dropping phenolphthalein into the gas washing bottle to change color. If there is a problem in the hydrolysis, it can be checked and adjusted in time, which is conducive to the stable and effective performance of the experiment. When the non-condensable gas is discharged, the gas passing through the gas washing bottle in the prior art will carry part of the liquid in the gas washing bottle when the vacuum pump is conveying gas, which will cause damage to the vacuum pump. The vacuum pump stops working, which affects the whole experiment. The present application sets a buffer tank at the front end of the vacuum pump. The gas passing through the gas washing bottle may carry liquid, which is left in the buffer tank, and then enters the vacuum pump, effectively ensuring the use of the vacuum pump, improving safety, and ensuring normal operation.

[0023] The present application sets a waste liquid storage tank at the front end of the hydrolysis reaction kettle, and a filter sleeve is arranged in the waste liquid storage tank, which effectively filters out large particle substances and improves the effect of the hydrolysis reaction.

[0024] The present application is a phosphorus-containing waste liquid treatment system for laboratory experiments. The system treats the waste gas after hydrolysis of the phosphorus-containing waste liquid, effectively recovers phosphorus in the waste gas, and monitors the hydrolysis process to understand the progress, ensuring the stable performance of the experiment. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The present application is a phosphorus-containing waste liquid treatment system for laboratory experiments. The system treats the waste gas after hydrolysis of the phosphorus-containing waste liquid, effectively recovers phosphorus in the waste gas, and monitors the hydrolysis process to understand the progress, ensuring the stable performance of the experiment.

[0026] Figure 2 The present application is a phosphorus-containing waste liquid treatment system for laboratory experiments. The system treats the waste gas after hydrolysis of the phosphorus-containing waste liquid, effectively recovers phosphorus in the waste gas, and monitors the hydrolysis process to understand the progress, ensuring the stable performance of the experiment. Figure 1 The present application is a phosphorus-containing waste liquid treatment system for laboratory experiments. The system treats the waste gas after hydrolysis of the phosphorus-containing waste liquid, effectively recovers phosphorus in the waste gas, and monitors the hydrolysis process to understand the progress, ensuring the stable performance of the experiment.

[0027] Figure 3 The present application is a phosphorus-containing waste liquid treatment system for laboratory experiments. The system treats the waste gas after hydrolysis of the phosphorus-containing waste liquid, effectively recovers phosphorus in the waste gas, and monitors the hydrolysis process to understand the progress, ensuring the stable performance of the experiment. Figure 2 The present application is a phosphorus-containing waste liquid treatment system for laboratory experiments. The system treats the waste gas after hydrolysis of the phosphorus-containing waste liquid, effectively recovers phosphorus in the waste gas, and monitors the hydrolysis process to understand the progress, ensuring the stable performance of the experiment.

[0028] In the drawings: 1-waste liquid storage tank, 11-tank body, 12-filter sleeve, 121-filter sleeve body, 122-extension plate, 2-hydrolysis reaction kettle, 3-condenser, 4-gas washing bottle, 5-buffer tank, 6-vacuum pump, 7-water pump, 8-recovery tank, 9-jacket. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. The technical features involved in each embodiment of the present application described below can be combined with each other as long as they do not conflict with each other. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the scope of the present application. Embodiment 1

[0030] The present embodiment provides a phosphorus-containing waste liquid treatment system, referring to Figure 1 , comprising a waste liquid storage tank 1, a laboratory hydrolysis reactor 2, a condenser tube 3, a recovery device, a gas washing bottle 4, a buffer tank 5 and a vacuum pump 6, the collected phosphorus-containing waste liquid is transported to the waste liquid storage tank 1 through the water pump 7, the outlet end of the waste liquid storage tank 1 is communicated with the inlet end of the hydrolysis reactor 2 through a pipeline and a pump, the outlet end of the hydrolysis reactor 2 is communicated with the inlet end of the condenser tube 3 through a pipeline, the condenser tube is provided with a water inlet and a water outlet, the cooling water is connected through the water inlet, and the water outlet is discharged to form circulating water for cooling, the inlet end of the condenser tube 3 is also provided with a recovery pipeline, the recovery pipeline is communicated with the recovery device to recover the condensed liquid after condensation, and the outlet end of the condenser tube 3 is communicated with the gas inlet pipe of the gas washing bottle 4 to transport the non-condensable gas, the gas outlet pipe of the gas washing bottle 4 is communicated with the inlet of the buffer tank 5, and the outlet of the buffer tank 5 is communicated with the fume hood through a pipeline and the vacuum pump 6 to discharge the non-condensable gas;

[0031] Referring to Figures 2-3 , the waste liquid storage tank 1 comprises a tank body 11 and a filter sleeve 12, the filter sleeve 12 is arranged in the tank body 11, the upper end of the tank body 11 is open, and the lower end of one side of the tank body 11 is provided with a discharge pipe communicated with the tank body 11, and a discharge valve is arranged on the discharge pipe, so that the discharge pipe can be conveniently started and stopped, and use is convenient, the filter sleeve 12 comprises a filter sleeve body 121 and an extension plate 122, the filter sleeve body 121 is a hollow inverted circular table structure with an open upper end, the upper end of the filter sleeve body 121 is horizontally extended to the outside to form the extension plate 122 on both sides, the extension plate 122 is arranged at the edge of the upper end of the tank body 11, so that the filter sleeve body 121 is suspended in the tank body 11, the filter sleeve is made of a filter screen, the size of the screen hole is determined according to the situation, the collected waste liquid can be preliminarily filtered, the granular substances are filtered out, the phospholipid solids with high content which may have been agglomerated are pretreated, the subsequent hydrolysis is facilitated, the large-particle substances are removed, the damage of the stirring device during stirring is reduced, the abrasion of the reaction kettle is reduced, the waste liquid is cleaner, and the reaction is efficient;

[0032] The recovery device comprises a recovery tank 8 connected with the recovery pipe on the condensing pipe 3 through a pipe, and an outlet pipe is arranged on one side of the recovery tank 8, and an outlet valve is arranged on the outlet pipe, so that the condensed liquid can be collected in time and then transported to an existing mode such as evaporation crystallization to treat and recycle the recovered phosphorus resource.

[0033] In the embodiment, the gas washing bottle 4 is filled with deionized water, and phenolphthalein is dropped into the deionized water, so that the acidolysis indicator is used to detect whether the hydrolysis reaction is completed; if there is a problem, the problem can be adjusted at any time, the problem can be found and adjusted in time, and the normal operation of the work is ensured; the buffer tank can also be a gas washing bottle, which is empty and does not contain liquid, so that the gas containing liquid can be dropped to the liquid, and the normal use of the vacuum pump is ensured.

[0034] In the embodiment, the hydrolysis reaction kettle 2 is sleeved with a jacket 9 at the bottom, and a temperature adjusting coil is arranged in the jacket, so that the laboratory hydrolysis reaction kettle is uniformly temperature adjusted, and the hydrolysis effect is effectively improved.

[0035] In the embodiment, the sealing of each device can be further sealed and reinforced by smearing vaseline after the original sealing cover.

[0036] In addition to the above-mentioned embodiments, the utility model can also have other implementation manners. Any technical scheme formed by equivalent replacement or equivalent transformation falls within the protection scope required by the utility model.

Claims

1. A phosphorus-containing waste solution treatment system characterized by comprising: The application relates to a phosphorus-containing waste liquid treatment device which comprises a waste liquid storage tank (1), a hydrolysis reactor (2), a condenser tube (3), a recovery device, a gas washing bottle (4), a buffer tank (5) and a vacuum pump (6), wherein the collected phosphorus-containing waste liquid is transported to the waste liquid storage tank (1) through a water pump (7), the outlet end of the waste liquid storage tank (1) is communicated with the inlet end of the hydrolysis reactor (2) through a pipeline, the outlet end of the hydrolysis reactor (2) is communicated with the inlet end of the condenser tube (3) through a pipeline, the inlet end of the condenser tube (3) is also provided with a recovery pipeline which is communicated with the recovery device to recover the condensed condensate, the outlet end of the condenser tube (3) is communicated with the gas inlet pipe of the gas washing bottle (4) to transport the non-condensed gas, the gas outlet pipe of the gas washing bottle (4) is communicated with the inlet of the buffer tank (5), and the outlet of the buffer tank (5) is communicated with the fume hood through a pipeline and the vacuum pump (6) to discharge the non-condensed gas.

2. The phosphorus-containing waste solution treatment system according to claim 1, characterized by: The waste liquid storage tank (1) comprises a tank body (11) and a filter sleeve (12), and the filter sleeve (12) is arranged in the tank body (11). The upper end of the tank body (11) is open, and the lower end of one side of the tank body (11) is provided with a discharge pipe which is communicated with the tank body (11). The filter sleeve (12) comprises a filter sleeve body (121) and an extension plate (122), the filter sleeve body (121) is a hollow inverted circular cone structure with an open upper end, the upper end of the filter sleeve body (121) is horizontally extended outward to form the extension plate (122) on both sides, and the extension plate (122) is arranged at the edge of the upper end of the tank body (11) so that the filter sleeve body (121) is suspended in the tank body (11).

3. The phosphorus-containing waste solution treatment system according to claim 2, characterized by: A discharge valve is arranged on the discharge pipe.

4. The phosphorus-containing waste solution treatment system according to claim 1, characterized by: The gas washing bottle (4) is filled with deionized water, and phenolphthalein is added into the deionized water.

5. The phosphorus-containing waste solution treatment system according to claim 1, characterized by: The recovery device comprises a recovery tank (8), the recovery tank (8) is connected with the recovery pipeline on the condenser tube (3) through a pipeline, one side of the recovery tank (8) is provided with an outlet pipe, and an outlet valve is arranged on the outlet pipe.

6. The phosphorus-containing waste solution treatment system according to claim 1, characterized by: A jacket (9) is arranged at the bottom of the hydrolysis reactor (2), and a temperature adjusting device is arranged in the jacket.

7. The phosphorus-containing waste solution treatment system according to claim 6, characterized by: The temperature adjusting device is a temperature adjusting coil pipe.