High-voltage electrodialysis water purifier

A water purifier and high-voltage electricity technology, applied in the field of water treatment, can solve the problems of easy blockage of the pressure reverse osmosis membrane, inability to be widely promoted, and high equipment price, and achieve no disassembly, prolonged service life, not easy to scale and block, and simple structure. Effect

Inactive Publication Date: 2008-08-13
北京索能技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most obvious disadvantage is the low utilization rate of water, 3-5 tons of unpurified water is required to produce 1 ton of pure water
Secondly, the pressure reverse osmosis membrane is easy to clog and needs to be cleaned or replaced every time it works.
The third is that the equipment is expensive and cannot be widely promoted
The fourth is that water with high hardness cannot be directly used for desalination, and ion exchange resin is required for preliminary purification

Method used

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  • High-voltage electrodialysis water purifier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1 prepares the embodiment of high-purity water

[0023] The fence of the high-voltage electrodialysis water purifier is made of acrylic braid, and the support is a polypropylene grid that does not affect the water flow. The water source of the water inlet is distilled water (or pressure reverse osmosis). Positive and negative ions swim in the high-voltage electric field and enter the positive and negative chambers through the acrylic woven fence respectively. Therefore, distilled water (water purified by pressure reverse osmosis) is further purified into ultrapure water. In this embodiment, the plate area of ​​the equipment is 560×290mm, the water flow velocity in the water purification chamber is 1500L / hour, the water flow velocity in the electrode chamber is 2×100L / hour, the total voltage of the equipment is 1800V, the electric field strength is 90V / cm, and the current 0.8A.

[0024] Effect: The conductivity value of the distilled water entering the devic...

Embodiment 2

[0025] Embodiment 2, the purification of fluorine-exceeding water becomes qualified drinking water:

[0026] The fence of the high-voltage electrodialysis water purifier is an acrylic fabric fence, and the support is a polypropylene grid. When flowing through the clean water chamber, the positive and negative ions in the water swim in the high-voltage electric field and enter the positive and negative chambers through the acrylic woven fence respectively. Therefore, high fluorine water is purified into water with fluorine content up to standard. In this embodiment, the plate area of ​​the equipment is 560×290mm, the water flow velocity in the water purification chamber is 500L / hour, the water flow velocity in the electrode chamber is 2×50L / hour, the total voltage of the equipment is 250V, the electric field strength is 40V / cm, and the current 3.0-5.0A.

[0027] Effect: The hardness of the groundwater entering the equipment is 560mg / l, the fluorine content is 2.2mg / L, the man...

Embodiment 3

[0028] Embodiment 3, brackish water purification becomes qualified drinking water:

[0029] The fence of the high-voltage electrodialysis water purifier is a filter cloth fence, and the support is a polypropylene grid. The water source of the water inlet of the water purification chamber adopts a water source with a total salt concentration of about 500mg / L. When flowing through the clean water chamber, the positive and negative ions in the water swim in the high-voltage electric field, and enter the positive and negative chambers through the fence made of filter cloth respectively. Therefore, the salt concentration in the water is reduced to meet the standard of qualified water sources. In this embodiment, the plate area of ​​the equipment is 560×290mm, the water flow rate in the water purification chamber is 500L / hour, the water flow velocity in the electrode chamber is 2×40L / hour, the total voltage of the equipment is 60V, the electric field strength is 5V / cm, and the curre...

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Abstract

The present invention provides a high voltage electrodialysis water purifier, belonging to water processing field, the barrier of the present electrodialysis unit is made of multiple ionic membrane, and the present electrodialysis unit changes frequently, has a lower purification efficiency, not suitable for purification of groundwater with high hardness, and has a high cost, the invnetion is made of acrylic braided fabric, neutral semipermeable membrane or pylome foam plastic plate etc, a supporter is made of insulating material, voltage between anode and cathode is 100-200V, electrical field strength is 5-100V/cm, the invention has effect of high purification efficiency, simple technology, large or small purifying scale, suitable for water purification having higher pollution degree, and lower operating cost.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to an electrodialysis water purifier. Background technique [0002] Existing electroosmotic water purifiers are based on ion-exchange membranes, or ion-exchange resins are sandwiched between two membranes and used as membranes. The cation membrane only allows positive ions to pass through and blocks anions; the anion membrane only allows negative ions to pass through and does not allow positive ions to pass through. The structure of the electroosmotic seawater desalinator designed in this way is simple, but the cationic membrane that only allows cations to pass through is easy to cause high prices. The cations accumulate on the semi-permeable membrane to form a shell-like scale, causing mechanical damage to the membrane, and the equipment needs to replace the ion semi-permeable membrane frequently. The service life of the membrane is short. Due to the use of ion-exchange membranes o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/469B01D61/46
Inventor 舒煦吕剑虹丁洪
Owner 北京索能技术有限公司
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