Electrodialyzer with ultrasonic function

An electrodialyzer and functional technology, applied in the field of electrodialyzer, can solve problems such as power consumption, effective cleaning of pollution, and influence on the continuity of electrodialysis operation

Active Publication Date: 2014-12-24
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These two methods are time-consuming and labor-intensive, which affect the continuity of electrodialysis operation (Ren Hongyan, Research progress in electrodialysis membrane fouling and its control methods [J], Modern Chemical Industry, 2007, 27(7): 18-21)
[0005] The present invention is dedicated to delaying the formation of membrane fouling in the electrodialysis process, better solving the problem of effective cleaning of membrane fouling in the electrodialysis process, and proposes an electrodialyzer with an online ultrasonic function

Method used

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  • Electrodialyzer with ultrasonic function
  • Electrodialyzer with ultrasonic function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] The conventional anode electrode plate is used as the anode plate, such as Figure 4b The electrode plate with the ultrasonic transducer shown is the cathode plate. The maximum diameter of the metal block at the front of the ultrasonic transducer is 45mm. The center of the metal block at the front of the ultrasonic transducer and the geometric center of the effective surface of the electrode plate To overlap, the ultrasonic transducer 3 and the electrode plate electrode material 4-2 are bonded with 302 modified acrylate adhesive. The frequency of the ultrasonic transducer is 40kHz, the ultrasonic output power is 40W, the effective surface size of the electrode plate is 5cm×10cm, and the effective membrane area is 50cm 2 , The film surface power is 0.8W / cm 2 .

[0074] The commercially available ZN48 electromagnetic relay is used for timing control; the ultrasonic generator matched with the above-mentioned ultrasonic transducer is used; the other parts of the electrodialysis...

Embodiment 2

[0077] The same on-line ultrasonic electrodialysis device as in Example 1 was used to perform acid-base regeneration treatment on the fermentation waste liquid.

[0078] The operating voltage of electrodialysis is 30V, constant pressure operation; the initial liquid of the acid chamber is 300mL of 0.05mol / L dilute sulfuric acid, the initial liquid of the alkali chamber is 300mL of 0.1mol / L dilute ammonia, and the initial liquid of the material chamber is sterilized monosodium glutamate, etc. The electrolytic mother liquid is 300mL, and the initial liquid of the electrode chamber is 300mL of 30g / L anhydrous sodium sulfate solution. The set temperature of the constant temperature water bath is 30°C. The ultrasonic mode controlled by the electromagnetic relay is as follows: 60s is a cycle period, the ultrasonic time is 15s, and the non-ultrasonic time is 45s, until the end of the electrodialysis operation. The measured and calculated parameters of the electrodialysis process are as...

Embodiment 3

[0080] The conventional cathode electrode plate is used as the cathode plate, and the anode plate coupling ultrasonic transducer and horn mode as shown in Figure 4d is adopted. The number of ultrasonic transducers installed is 4, and the effective surface size of the electrode plate is 10cm×20cm, uniformly distributed in the effective area, the maximum diameter of the metal block at the front end of the ultrasonic transducer installed is 45mm, and the lower end of the horn is at the geometric center of the equally divided effective surface, such as Figure 6b Shown; the ultrasonic transducer 3 and the upper end of the horn 3-4 are bonded with 302 modified acrylate adhesive. The frequency of the ultrasonic transducer is 40kHz, the ultrasonic output power is 40W, and the effective membrane area is 200cm 2 , The film surface power is 0.8W / cm 2 .

[0081] The commercially available ZN48 electromagnetic relay is used for timing control; the ultrasonic generator matched with the above-...

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Abstract

The invention relates to an electrodialyzer with an ultrasonic function. According to the invention, the electrodialyzer comprises: a plate electrode (4), an ion-exchange membrane (6), a separating plate (5) and a direct-current constant voltage power supply (7). The plate electrode (4) comprises: a main body supporting material (4-1), an electrode material (4-2), a plate electrode medial-surface supporting net (4-3), and membrane pack liquid material inlet bolts (4-4). The separating plate (5) comprises a separating plate main body supporting material (5-1). The electrodialyzer is characterized in that: the electrodialyzer also comprises an ultrasonic wave generating system used for mixing electrodialysis liquid, such that pollution on the ion-exchange membrane is inhibited and retarded. The ultrasonic wave generating system comprises an ultrasonic wave generator (2) and an ultrasonic transducer (3). With an ultrasonic effect provided by the electrodialyzer of the invention, the influence of membrane pollution is reduced, and comprehensive energy consumption is reduced.

Description

Technical field [0001] The present invention relates to the technical field of membrane separation, in particular, the present invention relates to an electrodialyzer with ultrasonic function. Background technique [0002] Electrodialysis technology is one of the membrane separation technologies. It is used under the action of a direct current electric field, anions and cations can selectively pass through an anion and cation exchange membrane, or water is dissociated into H in a bipolar membrane. + And OH - And other principles, a technology to achieve the purpose of material purification, separation and acid-base regeneration. Because of its advantages such as no consumption of drugs and no waste liquid generation, it is widely used in the fields of chemical industry, light industry, metallurgy, papermaking, and pharmaceutical industry. [0003] However, membrane fouling is always one of the main factors limiting the application of electrodialysis technology. In the field of env...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D61/42
Inventor 杨鹏波王倩丛威
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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