CN203382595U - Wastewater recovery and reutilization system by industrial desalination process - Google Patents

Wastewater recovery and reutilization system by industrial desalination process Download PDF

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Publication number
CN203382595U
CN203382595U CN201320433147.0U CN201320433147U CN203382595U CN 203382595 U CN203382595 U CN 203382595U CN 201320433147 U CN201320433147 U CN 201320433147U CN 203382595 U CN203382595 U CN 203382595U
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China
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water
pipeline
reverse osmosis
industrial
medium filter
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CN201320433147.0U
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江涛
李兵
梅胜明
邓玉才
江志富
罗书鸾
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Sinochem Fuling Chongqing Chemical Industry Co Ltd
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Sinochem Fuling Chongqing Chemical Industry Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124Water desalination
    • Y02A20/131Reverse-osmosis

Abstract

The utility model discloses a wastewater recovery and reutilization system by an industrial desalination process. The wastewater recovery and reutilization system comprises a raw water tank, a multi-medium filter, a self-cleaning filter, an ultrafiltration device, an ultrafiltration water tank and a reverse osmosis device which are sequentially connected through a pipeline, wherein the multi-medium filter, the ultrafiltration device and the reverse osmosis device are respectively communicated with a cleaning device through pipelines. The wastewater recovery and reutilization system is characterized in that a multi-medium flushing water outlet of the multi-medium filter, an ultrafiltration backwashing water outlet of the ultrafiltration device and a reverse osmosis concentrated water outlet of the reverse osmosis device are respectively communicated with a circulating water tank through a first pipeline, a second pipeline and a third pipeline, and an outlet for reverse osmosis washing water and reverse osmosis backwashing water of the reverse osmosis device is communicated with the raw water tank through a fourth pipeline. The wastewater recovery and reutilization system by the industrial desalination process, disclosed by the utility model, has a simple structure, performs classified recovery and reutilization on flushing water produced in the industrial desalination process, greatly reduces the consumption of water resources, and saves the production cost.

Description

A kind of industrial desalinating process wastewater recycling system
Technical field
The utility model belongs to technical field of waste water processing, specifically, relates to a kind of industrial desalinating process wastewater recycling system.
Background technology
In industrial production, main water is divided into recirculated water, de-salted water, deionized water, ultrapure water etc.; Recirculated water, as main water in industrial enterprise, accounts for 70% of institute's water, is mainly used in the water coolant of various heat-exchange equipments, owing to can be recycled, only needs regular replenishment to get final product; De-salted water is that water is to a certain degree removed or reduced to the contained strong electrolyte that is easy to remove, and in industrial production, de-salted water is mainly used in boiler for producing steam or to making water have the system of particular requirement to use.In order to prevent that boiler generation fouling, burn into from worsening the harm such as steam quality, make the economical operation of boiler energy long-term safety, the requirement that the feedwater of boiler and pot water all should be up to state standards.
In recent years, the embrane method desalting technology has obtained development at a high speed at home, be widely used in industry-by-industry, equally, the embrane method desalting technology is also being brought into play more and more important effect in water treatment field, and industrial and mining enterprises' membrane separation technique commonly used has micro-filtration, ultrafiltration, nanofiltration, reverse osmosis, electrodialysis, infiltration evaporation and gas delivery etc.But adopt which kind of membrane separation technique or several mixing to use the inefficacy regenerative process that all has permeable membrane, the general positive backwash process of de-salted water that adopts is regenerated, with for producing next time, and often directly discharged because wash-down water contains some impurity, cause the significant wastage of water resources.
The prior art shortcoming: the wash-down water of the generation in desalinating process is many, but is discharged owing to containing a small amount of impurity of bringing in flushing, causes the waste of water resources.
Summary of the invention
For solving above technical problem, the purpose of this utility model is to provide a kind of the classification to recycle the industrial desalinating process wastewater recycling system of wash-down water.
The utility model purpose is achieved in that a kind of industrial desalinating process wastewater recycling system, comprise the Yuan Shui pond connected successively by pipeline, more medium filter, self-cleaning filter, ultra-filtration equipment, the ultrafiltration pond, reverse osmosis unit, intermediate water tank, middle water pump, mixed ion exchanger and desalination water tank, described more medium filter, ultra-filtration equipment and reverse osmosis unit are communicated with washing unit by pipeline respectively, its key is: the multimedium wash-down water outlet of described more medium filter, the hyperfiltration reverse-rinsing water out of ultra-filtration equipment and the reverse osmosis concentrated water out of reverse osmosis unit are respectively by the first pipeline, second pipe and the 3rd pipeline are communicated with circulating water pool, the reverse osmosis the wash water of described reverse osmosis unit and the outlet of reverse osmosis backwash water are communicated with described Yuan Shui pond by the 4th pipeline.
Adopt said structure: the reverse osmosis concentrated water that the hyperfiltration reverse-rinsing water that the multimedium wash-down water that more medium filter produces, ultra-filtration equipment produce and reverse osmosis unit produce passes into circulating water pool by pipeline, as recirculated water, use, reverse osmosis the wash water and reverse osmosis backwash water that reverse osmosis unit produces pass into the Yuan Shui pond as former water by pipeline, and enter recycle in the desalinating process system.
Above-mentioned the first pipeline, second pipe, the 3rd pipeline and the 4th pipeline are equipped with the first control valve.
Adopt said structure: the circulation of the first pipeline, second pipe, the 3rd pipeline and the 4th pipeline can be controlled by the first control valve, can be rinsed more medium filter, ultra-filtration equipment and reverse osmosis unit respectively or jointly.
Above-mentioned washing unit comprises cleaning water tank and the water pump of connecting by pipeline, and described water pump is communicated with described more medium filter, ultra-filtration equipment and reverse osmosis unit respectively by pipeline, is equipped with the second control valve on this pipeline.
Adopt said structure: by controlling the control of the second control valve to pipeline, can control the trend of wash-down water, can also prevent that product liquid enters in pipeline in flushing process.
In each operation of de-salted water technique, various wash-down water leading indicators and raw water quality analysis see the following form:
Title Hardness Basicity PH Specific conductivity Cl- Ca2+ Total iron Remaining ammonia Ammonia
Former water 190 116 7.96 388 26.2 113 0.15 - 2.2
Recirculated water 600-1000 - 8.2 1500-2000 <300 400-800 0.5 0.3-1 <10
The multimedium wash-down water 188 114 7 400 30 115 0.15 - 2.0
Hyperfiltration reverse-rinsing water 360 - 4.5 - - 116 - 35 -
The reverse osmosis backwash water - - 7 10-20 - - - - -
The reverse osmosis the wash water 185 112 7 388 - - - - -
Reverse osmosis concentrated water 600-650 - 7-8 900-1100 - 400-450 - - -
By upper table, can find out, the index of multimedium wash-down water and the index of former water are very approaching, but, because its turbidity is too high, can not use as former water; And the data of hyperfiltration reverse-rinsing water hardness, PH and remaining ammonia and former water are poor larger, can not be as former water, but meet the recirculated water service index, therefore can be used as recirculated water and use; The index such as the content of reverse osmosis concentrated water hardness, specific conductivity and calcium ion and former water are poor larger, do not meet the service requirements of former water, but meet the service requirements of recirculated water, therefore can be used as recirculated water and use; And the leading indicator of reverse osmosis backwash water and reverse osmosis the wash water is close or more excellent with former water index, reached the service requirements of former water, therefore can be used as former water and use.
After the de-salted water device is improved, under different production loads, show that water-saving benefit sees the following form:
By upper table, can find out, adopt de-salted water device of the present utility model, water-saving benefit is obvious, has reduced greatly the consumption of water resources, has saved cost.
Beneficial effect:
The present invention is a kind of industrial desalinating process wastewater recycling system, simple in structure, to the wash-down water produced in the industrial de-salted water technique recycling of classifying, has reduced greatly the consumption of water resources, has saved production cost.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Embodiment:
As shown in Figure 1: a kind of industrial desalinating process wastewater recycling system, comprise the Yuan Shui pond 1, more medium filter 2, self-cleaning filter 3, ultra-filtration equipment 4, ultrafiltration pond 5, reverse osmosis unit 6, intermediate water tank 7, middle water pump 8, mixed ion exchanger 9 and the desalination water tank 10 that are connected successively by pipeline, described more medium filter 2, ultra-filtration equipment 4 and reverse osmosis unit 6 are communicated with water pump 14 by pipeline respectively, be equipped with the second control valve 15 on this pipeline, described water pump 14 is communicated with cleaning water tank 13 by pipeline.The multimedium wash-down water outlet of described more medium filter 2, the hyperfiltration reverse-rinsing water out of ultra-filtration equipment 4 and the reverse osmosis concentrated water out of reverse osmosis unit 6 are communicated with circulating water pool 11 by the first pipeline 2a, second pipe 4a and the 3rd pipeline 6a respectively, and the reverse osmosis the wash water of described reverse osmosis unit 6 and the outlet of reverse osmosis backwash water are communicated with described Yuan Shui pond 1 by the 4th pipeline 6b.The reverse osmosis concentrated water that the hyperfiltration reverse-rinsing water that the multimedium wash-down water that more medium filter produces, ultra-filtration equipment produce and reverse osmosis unit produce passes into circulating water pool by pipeline, as recirculated water, use, reverse osmosis the wash water and reverse osmosis backwash water that reverse osmosis unit produces pass into the Yuan Shui pond as former water by pipeline, and enter recycle in the desalinating process system.
Described the first pipeline 2a, second pipe 4a, the 3rd pipeline 6a and the 4th pipeline 6b are equipped with the first control valve 12.Control the circulation of the first pipeline 2a, second pipe 4a, the 3rd pipeline 6a and the 4th pipeline 6b by the first control valve, can be rinsed more medium filter, ultra-filtration equipment and reverse osmosis unit respectively or jointly.

Claims (3)

1. an industrial desalinating process wastewater recycling system, comprise the Yuan Shui pond (1) connected successively by pipeline, more medium filter (2), self-cleaning filter (3), ultra-filtration equipment (4), ultrafiltration pond (5), reverse osmosis unit (6), intermediate water tank (7), middle water pump (8), mixed ion exchanger (9) and desalination water tank (10), described more medium filter (2), ultra-filtration equipment (4) and reverse osmosis unit (6) are communicated with washing unit by pipeline respectively, it is characterized in that: the multimedium wash-down water outlet of described more medium filter (2), the reverse osmosis concentrated water out of the hyperfiltration reverse-rinsing water out of ultra-filtration equipment (4) and reverse osmosis unit (6) is respectively by the first pipeline (2a), second pipe (4a) and the 3rd pipeline (6a) are communicated with circulating water pool (11), the reverse osmosis the wash water of described reverse osmosis unit (6) and the outlet of reverse osmosis backwash water are communicated with described Yuan Shui pond (1) by the 4th pipeline (6b).
2. a kind of industrial desalinating process wastewater recycling system according to claim 1, it is characterized in that: described the first pipeline (2a), second pipe (4a), the 3rd pipeline (6a) and the 4th pipeline (6b) are equipped with the first control valve (12).
3. a kind of industrial desalinating process wastewater recycling system according to claim 1, it is characterized in that: described washing unit comprises cleaning water tank (13) and the water pump (14) of connecting by pipeline, described water pump (14) is communicated with described more medium filter (2), ultra-filtration equipment (4) and reverse osmosis unit (6) respectively by pipeline, is equipped with the second control valve (15) on this pipeline.
CN201320433147.0U 2013-07-19 2013-07-19 Wastewater recovery and reutilization system by industrial desalination process Active CN203382595U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103880217A (en) * 2014-03-25 2014-06-25 济钢集团有限公司 Drained water recycling model for soft water preparation system and recycling method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103880217A (en) * 2014-03-25 2014-06-25 济钢集团有限公司 Drained water recycling model for soft water preparation system and recycling method

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