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Structure filter core for removing molybdenum in drinking water and preparation method of structure filter core

A drinking water and filter element technology, applied in separation methods, chemical instruments and methods, filtration and separation, etc., can solve the problems of frequent regeneration, large one-time investment, incomplete regeneration, etc. handy effect

Inactive Publication Date: 2012-05-30
SUZHOU CHENCAI TEXTILE RES & DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The precipitation method can quickly reduce the high concentration of molybdenum in water, and the treatment effect is good, but the treatment cycle is long, and the depth of molybdenum removal is difficult to reach the standard of drinking water
Although the ion exchange method has certain application examples, it has a large one-time investment, high operating costs, the resin is easily polluted or oxidized, and the regeneration is frequent and incomplete.
The notification number is CN1085736C, which discloses a method for removing molybdenum from ammonium tungstate solution by ion exchange. The invention uses a strong basic quaternary ammonium anion resin as an exchange agent, and hydrogen peroxide as a regenerant, which improves the molybdenum removal rate, but does not Suitable for removal of molybdenum from potable water

Method used

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  • Structure filter core for removing molybdenum in drinking water and preparation method of structure filter core

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0033] By mass percentage:

[0034] 170 mesh diatomite 35% iron-copper-zinc mixed powder 9% (80 mesh)

[0035] Acrylic adhesive 10% Azoaminobenzene 8%

[0036] 10 million molecular weight PTFE 38% (110 mesh)

[0037] Its preparation method is as follows:

[0038] Weigh each raw material according to the formula quantity, mix and stir evenly, place in a honeycomb mold, sinter at 500°C for 180 minutes, cool to room temperature and demould to obtain a porous honeycomb structure filter element.

example 2

[0040] By mass percentage:

[0041] 170 mesh diatomite 40% iron-copper-zinc mixed powder 6% (90 mesh)

[0042] Acrylic adhesive 8% Azoaminobenzene 6%

[0043] 9 million molecular weight PTFE 40% (140 mesh)

[0044] Its preparation method is as follows:

[0045] Weigh each raw material according to the formula amount, mix and stir evenly, place in a honeycomb mold, sinter at 400°C for 200 minutes, cool to room temperature and demould to obtain a porous honeycomb structure filter element.

example 3

[0047] By mass percentage:

[0048] 170 mesh diatomite 30% iron-copper-zinc mixed powder 10% (100 mesh)

[0049] Acrylic adhesive 10% Azoaminobenzene 10%

[0050] 11 million molecular weight PTFE 40% (100 mesh)

[0051] Its preparation method is as follows:

[0052] Weigh each raw material according to the formula quantity, mix and stir evenly, place in a honeycomb mold, sinter at 450°C for 300 minutes, cool to room temperature and demould to obtain a porous honeycomb structure filter element.

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Abstract

The invention discloses a structure filter core for removing molybdenum in drinking water and a preparation method of the structure filter core, belonging to the technical field of purification treatment of the drinking water. The preparation method of the structure filter core comprises the following steps of: taking polytetrafluoroethylene, diatomite, iron-copper-zinc mixed powder, acrylic adhesive and azoaminobenzene according to formula proportions; mixing and uniformly agitating the raw materials and then placing the mixture into a honeycomb-shaped mould; calcining the mould at a high temperature and molding; cooling the mould to the room temperature and then de-molding to obtain a porous honeycomb-shaped structure filter core. The structure filter core provided by the invention can be used for highly selectively removing the molybdenum in the drinking water and the treatment effect is not influenced by other ions; and the harms to human bodies by the over-proof molybdenum in thewater are avoided while the drinking water is purified. By testing, the molybdenum in the drinking water which is purified by the structure filter core can stably meet the standards of the drinking water.

Description

Technical field [0001] The invention is a structural filter element and preparation method that removes molybdenum in drinking water. It involves the removal of molybdenum in drinking water and belongs to the field of drinking water purification treatment technology. Background technique [0002] While the rapid development of industry and agriculture, my country's water resources were severely damaged. A large amount of industrial wastewater was discharged into the water body, destroying our ecological environment, a large amount of pesticides, pesticides, and random emissions of domestic waste. Directly or indirectly make the groundwater quality worse, and the molybdenum of drinking water sources is serious. [0003] Molybdenum is a trace element necessary for animal and plant, which exists in soil, water, air, and organisms.The content of molybdenum in the environment is closely related to human health, animal and plant growth and development.Excessive molybdenum affects the n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/14C02F1/00C02F1/62
Inventor 雷春生雷思宇金利军
Owner SUZHOU CHENCAI TEXTILE RES & DEV
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