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Zinc bismuthate-cerium germanate nanorod composite biological filter material
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A biological filter material and nanorod technology, applied in the field of filter material, can solve the problems of complex preparation process of biological filter material, unfavorable microbial growth, poor decolorization effect of sewage, etc., and achieve good application prospects, long service life and high porosity Effect
Active Publication Date: 2017-03-01
ANHUI UNIVERSITY OF TECHNOLOGY
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Problems solved by technology
However, the current biological filter materials still have high preparation temperature, hard shell on the surface of the filter material, which is not conducive to the growth of microorganisms, poor decolorization effect of sewage, small specific surface area, low porosity, or the preparation process of biological filter material is complex and time-consuming. Disadvantages such as too long
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Embodiment 1
[0023] Determine the mass percentage composition of zinc bismuth acid-cerium germanate nanorod composite biological filter material as follows:
[0024] Zinc bismuthate nanorods 50%,
[0025] Ceric germanate nanorods 5%,
[0026] Polypropylene 10%,
[0027] Sodium silicate 3%,
[0028] Alkyl polyoxyethylene ether 5%,
[0029] Water 27%.
Embodiment 2
[0031] Determine the mass percentage composition of zinc bismuth acid-cerium germanate nanorod composite biological filter material as follows:
[0032] Zinc bismuthate nanorods 35%,
[0033] Cerium germanate nanorods 10%,
[0034] Polypropylene 16%,
[0035] Sodium silicate 8%,
[0036] Alkyl polyoxyethylene ether 1%,
[0037] water 30%.
Embodiment 3
[0039] Determine the mass percentage composition of zinc bismuth acid-cerium germanate nanorod composite biological filter material as follows:
[0040] Zinc bismuthate nanorods 42%,
[0041] Ceric germanate nanorods 6%,
[0042] Polypropylene 11%,
[0043] Sodium silicate 4%,
[0044] Alkyl polyoxyethylene ether 2%,
[0045] Water 35%.
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Abstract
The invention discloses a zinc bismuthate-cerium germanate nanorod composite biological filter, and belongs to the technical field of fillers. The zinc bismuthate-cerium germanate nanorod composite biological filter comprises the following raw materials by mass: 35 to 50 percent of zinc bismuthate nanorods, 5 to 10 percent of cerium germanate nanorods, 10 to 16 percent of polystyrene, 3 to 8 percent of sodium silicate, 1 to 5 percent of alkyl polyoxyethylene ether, and 25 to 35 percent of water. The zinc bismuthate-cerium germanate nanorod composite biological filter has the advantages that the surface is rough; the thermostability is high; the water-resistance property is excellent; the porosity is high; the specific surface area is large; the adsorption capacity is high; convenience is brought for film formation and growth of the biological filter; organic pollutants in sewage water can be degraded through discoloration; the application property in the sewage treatment field is high.
Description
technical field [0001] The invention belongs to the technical field of filter materials, and in particular relates to a zinc bismuthate-cerium germanate nanorod composite biological filter material for sewage treatment. Background technique [0002] Biological filter is the core equipment of sewage treatment and plays an important role in the process of sewage treatment. As the core material of biofilter, biofilter determines the decontamination efficiency of biofilter, so biofilter has aroused people's extensive research interest. [0003] At present, a variety of biological filter materials have been reported in patents. For example, the national invention patent "a double-layer composite biological filter material for biological aerated filter and its preparation method" (invention patent number: ZL201010018383.7) uses attapulgite, diatom Soil, fly ash and coal powder are used as raw materials and sintered at 950-1050°C for 20 minutes to prepare a double-layer composite ...
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