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Water treatment ion exchange resin separation degree test system and test method

An ion exchange resin and resin separation technology, applied in the direction of material inspection products, etc., can solve the problems of no resin separation degree test system and method, low resin separation degree, etc., to optimize resin separation process parameters, improve regeneration level, and improve water yield The effect of water quality and output

Active Publication Date: 2015-01-14
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the resin separation degree is often used in the qualitative analysis of the resin separation degree of the high-speed mixed bed (it can also be used in the general water treatment mixed bed). For example, the poor water quality of the high-speed mixed bed or the low cycle water production may be related to the low resin separation degree. , and seldom use the resin in the cation resin tower (the cation resin separated in the separation tower is sent to the cation resin tower to be regenerated) and the anion resin tower (the anion resin separated in the separation tower is sent to the anion resin tower to be regenerated). Quantitative determination of resin separation degree, the main reason is that there is no resin separation degree test system and method

Method used

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  • Water treatment ion exchange resin separation degree test system and test method
  • Water treatment ion exchange resin separation degree test system and test method
  • Water treatment ion exchange resin separation degree test system and test method

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Experimental program
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Embodiment 1

[0044] This embodiment provides a water treatment ion exchange resin separation degree test system, its structure is as follows figure 1 shown. The test system includes a resin separation column 1, a plunger metering pump 2, a three-way regulating valve 3, a water tank 4, and a discharge pool 5;

[0045] Wherein, the water tank 4 is connected to the first port of the three-way regulating valve 3 through a pipeline, and a plunger type metering pump 2 is arranged on the connecting pipeline;

[0046] The height of the resin separation column 1 is 1500 mm, the inner diameter is 20 mm, the joints at both ends are threaded joints, the water inlet and outlet structure is a double-layer porous plate sandwiching nylon mesh structure, and the resin separation column 1 is provided with a height line scale;

[0047] The bottom opening of the resin separation column 1 is connected with the second port of the three-way regulating valve 3, and the top opening of the resin separation column ...

Embodiment 2

[0050] This embodiment provides a method for testing the degree of separation of ion exchange resins for water treatment, which is a method for detecting the degree of separation using the system for measuring the degree of separation of ion exchange resins for water treatment provided in Example 1. The method includes the following steps:

[0051] (1) Pretreatment: Take 500mL resin sample and soak it with pure water or sodium hydroxide solution with a concentration of 2wt%-3wt% as the soaking solution for 10 minutes;

[0052] (2) Column loading: fill the resin separation column 1 with the resin sample to be analyzed, the filling height of the resin sample is 60-80cm, and the soaked resin sample and the soaking solution are loaded together during filling, and the resin surface is kept 10 cm above the surface. -20cm high soaking liquid;

[0053] (3) Backwashing: use pure water as the backwashing water, start the plunger metering pump 2, adjust the working frequency of the plung...

Embodiment 3

[0065] This embodiment provides a method for testing the separation degree of cation exchange resin. The method is to use the test device provided in Example 1 to perform the test on 3 groups of resins (the cation exchange resin is mixed with a certain amount of anion exchange resin, the resins whose serial numbers are 1, 2, and 3 in Table 1) according to the test method provided in Example 2. The degree of separation test, the amount of resin and the test results are shown in Table 1.

[0066] In this embodiment, the separation effects achieved by the resins with serial numbers 1, 2, and 3 are as follows: Figure 2-Figure 4 As shown in these figures, it can be seen that the resin layered interface is clear and horizontal, which shows that this embodiment has achieved a complete separation of the mixture of cation exchange resin mixed with anion exchange resin.

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Abstract

The invention relates to a water treatment ion exchange resin separation degree test system and a test method. The test system comprises: a resin separation column, a plunger type metering pump, a three-way control valve, and a water tank. The water tank is connected to a first port of the three-way control valve through a pipeline, and the connection pipeline is provided with the plunger type metering pump. The bottom opening of the resin separation column is connected to a second port of the three-way control valve, the top opening of the resin separation column is emptied through a pipeline, a third port of the three-way control valve is emptied, and the resin separation column is equipped with scale. The invention also provides a water treatment ion exchange resin separation degree test method, which is carried out by adopting the test system. The water treatment ion exchange resin separation degree test device and test method realize quantitative determination of the high-speed mixed bed resin separation degree, and give separation and quantitative judgement on the resin separation effect of resin separation equipment.

Description

technical field [0001] The invention relates to a water treatment ion exchange resin separation degree test system and a test method, belonging to the technical field of water treatment resin regeneration. Background technique [0002] The high-speed mixed bed is an important unit of the condensate polishing system in the power plant, and the cross-contamination of the high-speed mixed bed resin is an important factor affecting the quality of the effluent. Therefore, how to reduce the cross-contamination of resin has become the main research topic of condensate polishing. The current method to reduce cross-contamination is to use advanced resin separation equipment such as high tower separation method and cone separation method, and improve the separation degree of anion and yang resins by optimizing equipment process parameters and resin selection. [0003] Resin separation degree is one of the important indicators to measure the cross-contamination of high-speed mixed bed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/44
Inventor 李永立星成霞王应高金绪良赵荧翟雅
Owner STATE GRID CORP OF CHINA
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