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Water treatment device and method aiming at excessive ferrum, manganese, fluorine and arsenic in underground water

A water treatment device and groundwater technology, applied in the direction of contaminated groundwater/leachate treatment, oxidized water/sewage treatment, multi-stage water/sewage treatment, etc.

Active Publication Date: 2012-11-14
POWERCHINA ZHONGNAN ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The above technologies have a certain removal effect on iron, manganese, fluorine or arsenic, but there is no device and method that can effectively remove these kinds of excessive substances at the same time

Method used

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  • Water treatment device and method aiming at excessive ferrum, manganese, fluorine and arsenic in underground water
  • Water treatment device and method aiming at excessive ferrum, manganese, fluorine and arsenic in underground water

Examples

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Effect test

Embodiment 1

[0034] Depend on figure 1 and figure 2 It can be seen that a water treatment device for iron, manganese, fluorine and arsenic in groundwater exceeding the standard includes an inclined tube sedimentation tank 2 and a disinfection and clean water tank 5. The sand coarse filter material filter 3, the downward flow multi-media filter 4, the disinfection and the clear water tank 5 are sequentially connected to form;

[0035] The top of the clapboard oxidation reaction tank 1 is provided with a grid grid aeration tower 8 and a primary spray pipe 7, and the top is provided with a flocculant dosing pump 9 and a pH adjusting agent dosing pump 22; Partition 10;

[0036] The inclined tube settling tank 2 is provided with an inclined tube 12, and a water collection tank 24 is provided close to the upper part of the inclined tube 12; a water inlet 11 is provided on the side wall near the clapboard oxidation reaction tank 1;

[0037] The bottom of described upward flow quartz sand coar...

Embodiment 2

[0043] A water treatment method aimed at excessive levels of iron, manganese, fluorine and arsenic in groundwater, using the water treatment equipment described in Example 1, adopting "aeration → clapboard oxidation reaction → inclined tube precipitation → upward flow filtration → aeration → Downflow filtration" process for water treatment:

[0044] 1. Influent water quality: PH6.4, NTU (turbidity) 60, Fe 2+ 16.8mg / L, Mn 2+ 2.5mg / L, F - 2.9mg / L, As0.19mg / L, ammonia nitrogen 6.8mg / L, oxygen consumption 5.20mg / L.

[0045] 2. Control parameters:

[0046] (1) Separator oxidation reaction tank 1

[0047] PH=6~8, polyaluminum chloride according to F - :Al 3+ =1:8 mass ratio dosing, reaction time 30min.

[0048] (2) Inclined tube sedimentation tank 2

[0049] Precipitation time 4.5h.

[0050] (3) Upward flow quartz sand coarse filter material filter 3

[0051] The particle size of the filter material is 0.71~2.0mm, the filtration rate is 8~10m / h, and the filtra...

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Abstract

The invention belongs to the fields of the water supply and sewage treatment devices, and provides a water treatment device and method aiming at excessive ferrum, manganese, fluorine and arsenic in underground water. The water treatment device consists of a partition oxidizing reaction tank (1), an inclined tube sedimentation tank (2), an upward flow quartz sand rough filter material filter tank (3), a downward flow multi-medium filtering tank (4) and a disinfection and water clarifying tank (5) which are sequentially communicated. The water treatment method adopts such a process flow of aeration, partition oxidizing reaction, inclined tube sedimentation, upward flow filtering, aeration, and downward flow filtering in sequence, and comprises the steps of firstly removing interference of ferrum to manganese and then removing the manganese; and feeding a flocculant in the partition oxidizing reaction tank and feeding a pH regulation agent into a pump to be capable of primarily removing fluorine and arsenic, carrying out two-stage filtering to be capable of ensuring that the water after treatment can achieve the standard. The water treatment device and method can remove the excessive ferrum, manganese, fluorine and arsenic substances in the same one device, and the treatment effect is superior to current sanitary standard of domestic drinking water in China.

Description

technical field [0001] The invention belongs to the field of water supply and sewage treatment devices, and further refers to a water treatment device and method aimed at excessive levels of iron, manganese, fluorine and arsenic in groundwater. Background technique [0002] Groundwater is an important part of water resources. With the improvement of people's living standards and the continuous development of small towns, groundwater resources have received special attention. Groundwater often contains high levels of iron and manganese. In some areas, groundwater also contains fluorine and arsenic, which seriously affects people's use of groundwater. [0003] my country's "Drinking Water Sanitation Standard" (GB5749-2006) stipulates that iron <0.3mg / L, manganese <0.1mg / L, fluoride content shall not exceed 1.0mg / L, and arsenic content shall not exceed 0.05mg / L. When the groundwater exceeds the above-mentioned standards, it should be treated. my country's new "Drinking...

Claims

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Application Information

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IPC IPC(8): C02F9/04C02F1/72C02F1/52C02F1/50C02F101/10C02F101/14C02F101/20C02F103/06
Inventor 唐传祥禹文芝游建军杜成琼曾丁松刘利军
Owner POWERCHINA ZHONGNAN ENG
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