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Equipment and method for removing manganese ions in underground water

A technology for groundwater and manganese ions, which is applied to equipment for removing manganese ions in groundwater. Using this device to remove manganese ions can solve the problems of long oxidation time and increased cost of manganese removal, and achieve high effluent quality, good manganese removal effect, The effect of meeting the control requirements

Active Publication Date: 2014-04-02
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, due to the long oxidation time of manganese ions under natural conditions, it is necessary to set up a huge reactor to ensure the completion of the oxidation process of manganese ions, which will inevitably lead to a significant increase in the cost of manganese removal

Method used

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  • Equipment and method for removing manganese ions in underground water
  • Equipment and method for removing manganese ions in underground water
  • Equipment and method for removing manganese ions in underground water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Equipment for the removal of manganese ions from groundwater, see Figure 1 to Figure 3 , including a water inlet device 1 , a reaction device 2 , an ultrafiltration device 3 and an aeration device 4 . The water inlet device 1 is arranged on the reaction device 2, and the humic acid dosing device 5 is arranged on the water inlet device 1; the ultrafiltration device 3 is arranged in the reaction device 2; the aeration device 4 is arranged at the bottom of the reaction device 2 The aeration hole 12 on the gas device 5 is aerated; the ultrafiltration device 3 is provided with a water outlet pipe 6, and the water outlet pipe 6 is provided with a first water pump 7. The reaction device 2 is also provided with a liquid chlorine dosing device 8; the reaction device 2 is also provided with a perforated deflector 13, and the ultrafiltration device 3 is arranged in the perforated deflector 13. The lower part of the reaction device 2 is also provided with a waste liquid discharge...

Embodiment 2

[0041] Manganese removal using the equipment used to remove manganese ions in groundwater, the steps are as follows:

[0042] (1) Use the humic acid dosing device to add humic acid into the water inlet pipe, and at the same time pass the groundwater into the water inlet pipe, and the humic acid and groundwater flow into the tube mixer under the push of the groundwater and mix well to obtain The mixture is passed into the reaction device;

[0043] (2) The mixture is reacted in the reaction device, and at the same time, the aeration device is used to aerate, and the liquid chlorine dosing device is used to add hypochlorous acid and liquid chlorine; the reaction liquid is obtained;

[0044] (3) The reaction solution is ultrafiltered by an ultrafiltration device to obtain groundwater after manganese removal.

[0045] The equipment for removing manganese ions in groundwater was used to remove manganese in Example 1, and different process parameters were used to remove manganese. The...

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Abstract

The invention provides equipment for removing manganese ions in underground water. The equipment comprises a water inlet device (1), a reaction device (2), an ultrafiltration device (3) and an aeration device (4), wherein the water inlet device (1) is arranged on the reaction device (2) and is provided with a humic acid adding device (5); the ultrafiltration device (3) is arranged in the reaction device (2); the aeration device (4) is arranged at the bottom of the reaction device (2) and is used for aeration through aeration holes (12) in the aeration device (4); the ultrafiltration device (3) is provided with a water outlet pipe (6); and the water outlet pipe (6) is provided with a first water pump (7). The equipment has the advantages of simple structure, convenience in use, low cost, good manganese removal effect and high effluent water quality. The invention also provides a method for removing the manganese ions in the underground water by using the equipment. The manganese removing method has the advantages of simple process, good manganese removing effect and high effluent water quality.

Description

technical field [0001] The invention belongs to the field of groundwater purification, in particular to a device for removing manganese ions in groundwater, and also to a method for removing manganese ions by using the device. Background technique [0002] The distribution of manganese-containing groundwater is very wide. Excessive manganese will seriously affect the use value of water, and it will affect human health if it enters the human body by mistake. The limit value for manganese ions in the recently fully implemented sanitary standards for drinking water (GB5749-2006) in the country is 0.1mg / L, while the concentration of manganese ions in general water bodies is 0.1~1mg / L, which is anoxic or anaerobic. The concentration of manganese ions in groundwater can be as high as 7~9mg / L, so manganese removal treatment must be carried out for groundwater under specific conditions. [0003] At present, the methods for removing manganese ions in groundwater mainly include natur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04
Inventor 陈卫刘成王东赢姜成浩刘海成
Owner HOHAI UNIV
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