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Structure filter core for removing molybdenum in drinking water and preparation method of structure filter core
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A drinking water and filter element technology, applied in separation methods, chemical instruments and methods, filtration and separation, etc., can solve the problems of large one-time investment, frequent regeneration, incomplete regeneration, etc. handy effect
Inactive Publication Date: 2013-09-11
SUZHOU CHENCAI TEXTILE RES & DEV
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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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[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.
[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.
[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 the water 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 relates to a structural filter element for removing molybdenum in drinking water and a preparation method thereof, relates to removing molybdenum in drinking water, and belongs to the technical field of drinking water purification treatment. Background technique [0002] With the rapid development of industry and agriculture, my country's water resources have been severely damaged. A large amount of industrial wastewater has been discharged into the water body, destroying our ecological environment, the extensive use of pesticides and insecticides, and the random discharge of domestic waste. Directly or indirectly, the quality of groundwater will be deteriorated, and molybdenum in drinking water sources will exceed the standard. [0003] Molybdenum is an essential trace element for animals and plants, and widely exists in soil, water, air and organisms. The content of molybdenum in the environment is closely related to human health, anima...
Claims
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Application Information
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