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Preparation device of ferron used for water treatment and application method thereof

A preparation device and water treatment technology, applied in the field of water treatment, can solve the problems of expensive use, large electrode spacing, low electrolysis efficiency, etc., and achieve the effect of saving power and energy and reducing economic costs

Active Publication Date: 2011-04-13
BEIJING ORIGIN WATER FILM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the concentration of these inorganic salts in urban sewage is low, the conductivity of the solution is low, the electrolysis efficiency is low, the distance between the electrodes is large, the energy consumption is large, and the treatment cost is high.
[0006] In the drinking water system, it has been reported to use technologies such as ion exchange, reverse osmosis and electrodialysis, but these technologies are not suitable for the advanced treatment of phosphorus in sewage due to their low efficiency and the use of expensive ion exchange membranes.

Method used

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  • Preparation device of ferron used for water treatment and application method thereof
  • Preparation device of ferron used for water treatment and application method thereof
  • Preparation device of ferron used for water treatment and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Such as figure 1 As shown, the preparation device for iron reagent for water treatment is mainly composed of a power supply 1, a tubular iron source generator device 9, and an electrolyte liquid storage tank 2. In this embodiment, a DC power supply capable of periodically changing the polarity of positive and negative polarities is used, and the switching period is 10s. Wherein, the tubular iron source generator device 9 is composed of three tubular generating units 10 connected in series, each generator unit is 300 mm long, and each tubular generating unit 10 is placed at an angle of 30° with the horizontal direction.

[0049] The tubular porous support material layer is made of taper-like raw cast iron. In this embodiment, only two layers of tubular support material nested inside and outside are used as the anode layer and the cathode layer (that is, the thickness of the iron filings layer is 0, and the mesh-like permeable material layer 5 is not provided), wherein t...

Embodiment 2

[0053] Implementation was carried out in the same manner as in Example 1. The difference is that both the anode layer and the cathode layer include a tubular porous support material layer, an iron filings layer and a mesh-like permeable material. Wherein, the anode layer is located inside the cathode layer. The specific structure of the anode layer is as follows: a layer of iron filings is attached outside the tubular porous support material layer with a thickness of 2 mm and an outer diameter of 60 mm and a mesh number of 100. The thickness of the iron filings layer is 10 mm. A stainless steel mesh (200 mesh) is overlapped with the obtained permeable material layer 5 . The specific structure of the cathode layer is: a layer of iron filings is attached to a tubular support material layer with a thickness of 2 mm and an outer diameter of 100 mm. The thickness of the iron filings layer is 10 mm, and the iron filing layer is covered by a stainless steel mesh (200 mesh) with a th...

Embodiment 3

[0058] Implementation was carried out in the same manner as in Example 2. The difference is that the tubular iron source generator device 9 is composed of a single tubular generating unit 10, and the length of the generator unit is 1000mm. The iron filings layer thickness of each electrode is 5mm. The permeable material is polytetrafluoroethylene mesh (100 mesh) with a thickness of 0.5 mm. A solar battery with equipment for changing the positive and negative polarities is connected between the anode and the cathode, the conversion period is 20s, and the current density is 10mA / cm 2 . The electrolyte is an aqueous mixture of sodium acetate and acetic acid with a concentration of 0.01mol / L, pH=4.5, and the electrolyte passes through the iron source generator at a flow rate of 50ml / min to obtain an iron reagent with a total iron concentration of 2g / L.

[0059] Example 4

[0060] Similar to Example 3. The difference is that the tubular iron source generator device 9 is comp...

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Abstract

The invention relates to a preparation device of ferron used for water treatment. The device comprises a power source (1), an iron source generator (9) and an electrolyte liquid storage pot (2), wherein the iron source generator (9) is composed of one or more grades of tubular generating units (10); each tubular generating unit (10) comprises an insulation tube body (6) as well as an anode layer and a cathode layer which are interactively nested; an annular passage is arranged between the anode layer and the cathode layer and is used for the liquid to flow through; and the electrolyte liquid storage pot (2) is communicated with one end of the tubular generating unit though a pipeline, and the other end of the generating unit is provided with a liquid outlet (8). Under the action of current, the device can rapidly and efficiently generate an iron liquid with high concentration; and the method provided by the invention can process water under the action of precipitate and flocculation. The ferron prepared by the method in the invention can rapidly purify water body, and has strong instantaneity, economy, environmental protection property and industrial applicability.

Description

【Technical field】 [0001] The invention belongs to water treatment technology. More specifically, the present invention relates to a device capable of obtaining iron reagent for water treatment in an efficient, fast, environmentally friendly and energy-saving manner and its use method, as well as the application of the iron reagent obtained by using the device in water treatment, especially It is a treatment application for phosphorous water. 【Background technique】 [0002] The eutrophication of water bodies is an increasingly serious and global water environment problem. The main reason is that water bodies rich in nutrients such as nitrogen and phosphorus are discharged into rivers or lakes, causing excessive growth of algae and other aquatic plants in the water. As a result, the concentration of dissolved oxygen in the water drops sharply and causes a large number of deaths of aquatic animals such as fish, and finally makes the water body become foul-smelling black water ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/46
CPCY02W10/33Y02W10/37
Inventor 李天玉陈亦力文剑平关晶
Owner BEIJING ORIGIN WATER FILM TECH
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