CN213357031U - Membrane method sewage treatment recycling system - Google Patents
Membrane method sewage treatment recycling system Download PDFInfo
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- CN213357031U CN213357031U CN202022239868.0U CN202022239868U CN213357031U CN 213357031 U CN213357031 U CN 213357031U CN 202022239868 U CN202022239868 U CN 202022239868U CN 213357031 U CN213357031 U CN 213357031U
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Abstract
The utility model relates to a membrane sewage treatment recycling system, which comprises a backwashing water tank, a backwashing pump, a backwashing valve, an alkali metering tank, an acid metering tank, a NaClO metering tank, an ultrafiltration assembly, a CIP cleaning system, a water supply system, a concentrated water discharge pipe and a backwashing water discharge pipe; the backwashing water tank is connected to a backwashing pump, the backwashing pump is connected to the ultrafiltration assembly through a backwashing valve, and a dosing system is arranged between the backwashing pump and the backwashing valve; the water supply system comprises a water supply pipeline and a water supply pump, the water supply pump is connected to the ultrafiltration assembly through a water supply valve, and the water supply pump is connected to the backwashing water discharge pipe through a forward washing valve and a backwashing discharge valve; the ultrafiltration component is connected to a concentrated water discharge pipe through a concentrated water discharge valve; the ultrafiltration module is connected with the CIP cleaning water tank and returns to the ultrafiltration module through the CIP circulating pump. The utility model discloses a quality of water scope of embrane method sewage treatment recycling system adaptation is wideer, and former water utilization rate is higher, and especially the operation energy consumption is lower, and the dirty useless emission in the system production process is still less.
Description
Technical Field
The utility model relates to an environmental engineering technical field, concretely relates to membrane method sewage treatment recycling system.
Background
The common ultrafiltration module is designed to have low raw water utilization rate, generally only 90-92%, and the process consumes more produced water, so that the energy consumption is too high, and more wastewater is discharged to aggravate secondary pollution; the traditional ultrafiltration has an unscientific operation mode and a short membrane pollution period, and the waste discharge generated by frequent chemical cleaning brings extra treatment expense to users. The scheme comprehensively judges the pollution type and the pollution characteristic in the water according to the known water source conditions provided by users and relative to the final water quality requirement.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a membrane sewage treatment recycling system, based on high efficiency, practicality, economy, environmental protection and energy saving and emission reduction principle, confirm advanced reasonable system configuration technology.
In order to solve the technical problem, the utility model provides a technical scheme is:
a membrane sewage treatment recycling system comprises a backwashing water tank, a backwashing pump, a backwashing valve, an alkali metering tank, an acid metering tank, a NaClO metering tank, an ultrafiltration assembly, a CIP cleaning system, a water supply system, a concentrated water discharge pipe and a backwashing water discharge pipe;
the backwashing water tank is connected to a backwashing pump, the backwashing pump is connected to the ultrafiltration assembly through a backwashing valve, and a dosing system is arranged between the backwashing pump and the backwashing valve;
the water supply system comprises a water supply pipeline and a water supply pump, the water supply pump is connected to the ultrafiltration assembly through a water supply valve, and the water supply pump is connected to the backwashing water discharge pipe through a forward washing valve and a backwashing discharge valve;
the ultrafiltration component is connected to a concentrated water discharge pipe through a concentrated water discharge valve; the ultrafiltration component is connected with a CIP cleaning system, and the CIP cleaning system comprises a CIP cleaning water tank and a CIP circulating pump; the ultrafiltration component is connected with the CIP cleaning water tank and returns to the ultrafiltration component through the CIP circulating pump.
Further, the backwash water tank is connected to the CIP cleaning water tank.
Furthermore, the ultrafiltration module adopts a molecular ultrafiltration membrane separation system.
Furthermore, the ultrafiltration module consists of a plurality of ultrafiltration membrane parts, and each ultrafiltration membrane part operates independently or simultaneously.
Furthermore, the membrane filaments of the ultrafiltration module are hollow fibers and made of modified PVDF.
Furthermore, the ultrafiltration module is provided with a complete maintenance isolation valve, and can be independently maintained and replaced without influencing the operation of the whole ultrafiltration module.
Furthermore, the ultrafiltration component is connected with an online detection program and a control instrument.
Furthermore, the dosing system comprises an alkali metering tank, an acid metering tank, a NaClO metering tank and a dosing metering pump.
Has the advantages that:
the utility model discloses a embrane method sewage treatment recycling system adopts the ultrafiltration product that the height was held back to realize the thorough filtering to remaining colloid in aqueous and macromolecular granule impurity. The utility model discloses a quality of water scope of embrane method sewage treatment recycling system adaptation is wideer, and former water utilization rate is higher, and especially the operation energy consumption is lower, and the dirty useless emission in the system production process is still less.
Drawings
FIG. 1: the utility model discloses a structural schematic diagram of embrane method sewage treatment recycling system.
Detailed Description
The present invention will be described in further detail with reference to specific examples. The following examples are intended to illustrate the invention only and are not intended to limit the scope of the invention.
A membrane sewage treatment recycling system comprises a backwashing water tank, a backwashing pump, a backwashing valve, an alkali metering tank, an acid metering tank, a NaClO metering tank, an ultrafiltration assembly, a CIP cleaning system, a water supply system, a concentrated water discharge pipe and a backwashing water discharge pipe;
the backwashing water tank is connected to a backwashing pump, the backwashing pump is connected to the ultrafiltration assembly through a backwashing valve, a dosing system is arranged between the backwashing pump and the backwashing valve, and the dosing system comprises an alkali metering tank, an acid metering tank, a NaClO metering tank and a dosing metering pump;
the water supply system comprises a water supply pipeline and a water supply pump, the water supply pump is connected to the ultrafiltration assembly through a water supply valve, and the water supply pump is connected to the backwashing water discharge pipe through a forward washing valve and a backwashing discharge valve;
the ultrafiltration component is connected to a concentrated water discharge pipe through a concentrated water discharge valve; the ultrafiltration component is connected with a CIP cleaning system, and the CIP cleaning system comprises a CIP cleaning water tank and a CIP circulating pump; the ultrafiltration component is connected with the CIP cleaning water tank and returns to the ultrafiltration component through the CIP circulating pump.
The backwash water tank is connected to the CIP cleaning water tank.
The ultrafiltration component adopts a molecular ultrafiltration membrane separation system.
The ultrafiltration module consists of a plurality of ultrafiltration membrane parts, and each ultrafiltration membrane part operates independently or simultaneously.
The membrane filaments of the ultrafiltration component are hollow fibers and are made of modified PVDF.
The ultrafiltration component is provided with a complete maintenance isolation valve, and can be maintained and replaced independently without influencing the operation of the whole ultrafiltration component.
The ultrafiltration component is connected with an online detection program and a control instrument.
The ultrafiltration component is a product with reliable quality, good hydrophilicity, large water permeability, good chemical stability, good pollution resistance and high mechanical strength.
The running flux value of the ultrafiltration membrane is below 60L/(m2 h).
The membrane filaments are made of modified PVDF (polyvinylidene fluoride), and the cumulative damage rate of the hollow fibers of the membrane column within 5 years is not more than 0.1%.
The membrane is sufficiently chemically resistant since chemical cleaning is required if necessary.
The water recovery rate of the ultrafiltration membrane system is more than 95 percent. The structural design of the ultrafiltration module is beneficial to the replacement and capacity increase of the membrane.
The membrane filtration mode adopts a forced cross-flow filtration mode to treat the water with high content of suspended matters.
And each unit water inlet and outlet header pipe of the ultrafiltration membrane component is provided with a valve so as to be connected with a cleaning liquid inlet and outlet pipe during cleaning.
The operation of the ultrafiltration component and backwashing are automatically controlled, the operation is automatically regulated and controlled according to the water level of the ultrafiltration water tank, and the ultrafiltration device has the function of delayed automatic flushing after being stopped.
The ultrafiltration device is provided with sampling points according to the needs, and the number and the positions of the sampling points can effectively diagnose and determine the operating condition of the system. Each set of ultrafiltration sampling valve is intensively arranged on one disc surface, so that sampling is convenient.
Ensuring the normal operation of the membrane element and a reasonable cleaning period. And ensures that the membrane flux in actual operation in the service life is not lower than 90% of the membrane flux provided by the bid, and corresponding design allowance is reserved for the membrane flux.
The ultrafiltration membrane system is provided with an online detection program and a control instrument for the integrity of the membrane column, so that the constant quality of the treated water and the normal and continuous operation of the microfiltration/ultrafiltration membrane system are ensured, and the detectable minimum damage is less than 5 microns.
Suspended matters, colloid, bacteria, macromolecular organic matters and the like intercepted by the ultrafiltration component are accumulated on the surface of the membrane, the normal filtration of the system can be influenced by the existence of the pollutants, and interactive backwashing is adopted for ensuring the stable operation of the system.
The ultrafiltration backwashing system automatically operates by program control, the backwashing is provided with interlocking protection, and when the ultrafiltration device is used for backwashing, other units automatically and variably operate to avoid frequent starting and stopping.
The CIP cleaning equipment comprises a cleaning solution tank (containing electric heating equipment), a security filter, a matched valve, an instrument and the like.
The chemical cleaning comprises reinforced cleaning CEB and on-line chemical cleaning CIP, which are both on-line cleaning and are automatically completed under the control of a PLC.
The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention in any form, and any skilled person familiar with the art will not depart from the technical scope of the present invention, and the technical spirit of the present invention will be any simple modification, equivalent replacement, and improvement made by the above embodiments, and the like, all still belong to the technical scope of the present invention.
Claims (8)
1. The utility model provides a membrane method sewage treatment recycling system which characterized in that: the device comprises a backwashing water tank, a backwashing pump, a backwashing valve, an alkali metering tank, an acid metering tank, a NaClO metering tank, an ultrafiltration assembly, a CIP cleaning system, a water supply system, a concentrated water discharge pipe and a backwashing water discharge pipe;
the backwashing water tank is connected to a backwashing pump, the backwashing pump is connected to the ultrafiltration assembly through a backwashing valve, and a dosing system is arranged between the backwashing pump and the backwashing valve;
the water supply system comprises a water supply pipeline and a water supply pump, the water supply pump is connected to the ultrafiltration assembly through a water supply valve, and the water supply pump is connected to the backwashing water discharge pipe through a forward washing valve and a backwashing discharge valve;
the ultrafiltration component is connected to a concentrated water discharge pipe through a concentrated water discharge valve; the ultrafiltration component is connected with a CIP cleaning system, and the CIP cleaning system comprises a CIP cleaning water tank and a CIP circulating pump; the ultrafiltration component is connected with the CIP cleaning water tank and returns to the ultrafiltration component through the CIP circulating pump.
2. The membrane-process sewage treatment recycling system of claim 1, characterized in that: the backwash water tank is connected to the CIP cleaning water tank.
3. The membrane-process sewage treatment recycling system of claim 1, characterized in that: the ultrafiltration component adopts a molecular ultrafiltration membrane separation system.
4. The membrane-process sewage treatment recycling system of claim 1, characterized in that: the ultrafiltration module consists of a plurality of ultrafiltration membrane parts, and each ultrafiltration membrane part operates independently or simultaneously.
5. The membrane-process sewage treatment recycling system of claim 1, characterized in that: the membrane filaments of the ultrafiltration component are hollow fibers and are made of modified PVDF.
6. The membrane-process sewage treatment recycling system of claim 1, characterized in that: the ultrafiltration component is provided with a complete maintenance isolation valve, and can be maintained and replaced independently without influencing the operation of the whole ultrafiltration component.
7. The membrane-process sewage treatment recycling system of claim 1, characterized in that: the ultrafiltration component is connected with an online detection program and a control instrument.
8. The membrane-process sewage treatment recycling system of claim 1, characterized in that: the dosing system comprises an alkali metering tank, an acid metering tank, a NaClO metering tank and a dosing metering pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022239868.0U CN213357031U (en) | 2020-10-10 | 2020-10-10 | Membrane method sewage treatment recycling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022239868.0U CN213357031U (en) | 2020-10-10 | 2020-10-10 | Membrane method sewage treatment recycling system |
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| CN213357031U true CN213357031U (en) | 2021-06-04 |
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| CN202022239868.0U Active CN213357031U (en) | 2020-10-10 | 2020-10-10 | Membrane method sewage treatment recycling system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113385036A (en) * | 2021-07-23 | 2021-09-14 | 西安热工研究院有限公司 | Classified recovery device and method for ultrafiltration drainage |
| CN115487682A (en) * | 2022-07-29 | 2022-12-20 | 华能国际电力股份有限公司上海石洞口第二电厂 | Vibrating rod, and system and method for improving ultrafiltration membrane cleaning by using vibrating rod |
-
2020
- 2020-10-10 CN CN202022239868.0U patent/CN213357031U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113385036A (en) * | 2021-07-23 | 2021-09-14 | 西安热工研究院有限公司 | Classified recovery device and method for ultrafiltration drainage |
| CN115487682A (en) * | 2022-07-29 | 2022-12-20 | 华能国际电力股份有限公司上海石洞口第二电厂 | Vibrating rod, and system and method for improving ultrafiltration membrane cleaning by using vibrating rod |
| CN115487682B (en) * | 2022-07-29 | 2024-05-24 | 华能国际电力股份有限公司上海石洞口第二电厂 | System and method for improving ultrafiltration membrane cleaning by using vibrating rod |
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