Multimedia biofilter material and preparation method thereof
A biological filter material and multi-media technology, applied in chemical instruments and methods, silicon compounds, inorganic chemistry, etc., can solve the problems of low bacterial colony survival rate and poor decolorization effect, so as to facilitate microbial film formation and protect microorganisms , Auxiliary decolorization and degradation of chemical oxygen demand, the effect of moderate particle size
Active Publication Date: 2013-12-11
SHENZHEN HUASHUI ENVIRONMENTAL PROTECTION TECH
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- Description
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AI Technical Summary
Problems solved by technology
[0004] The existing ceramic filter material only has the film-hanging effect of the bacteria, the decolorization effect is not good, and the survival rate of the bacteria is not high
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0027] The present invention will be further described below in conjunction with embodiment:
[0028] The multi-media biological filter material of the present invention is a small spherical ceramic filter material, and the components include modified montmorillonite, activated carbon and tourmaline mixed uniformly, and the weight percentage of the components is: 40% of modified montmorillonite, 35% of activated carbon %, Tourmaline 25%.
[0029] The modified montmorillonite is prepared according to steps 1-3 of the following method.
[0030] In other embodiments, the following component weight percentages may be used: 50% modified montmorillonite, 20% activated carbon, and 30% tourmaline.
[0031] In other embodiments, the following component weight percentages may also be used: 55% modified montmorillonite, 25% activated carbon, and 20% tourmaline.
[0032] The pellet size of the multi-media biological filter material is greater than or equal to 3 mm and less than or equal...
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Abstract
The invention discloses a multimedia biofilter material and a preparation method thereof. The multimedia biofilter material is of a spherular shape and comprises the following compositions in percentage by weight: 40-55 percent of modified montmorillonite, 20-35 percent of activated carbon and 20-30 percent of tourmaline. The preparation method comprises the following steps: preparing the modified montmorillonite; evenly mixing 40-55 percent of modified montmorillonite, 20-35 percent of activated carbon and 20-30 percent of tourmaline; preparing filter material balls in a rotary ball forming mill according to a ball forming process, wherein the size of the formed ball is 3mm-8mm; placing the filter material balls into a drying oven, calcinating for 2 hours-4hours at the temperature of 100 DEG C, calcinating for 2 hours-4hours at the temperature of 400 DEG C, and calcinating for 1 hour-2 hours at the temperature of 700 DEG C; and finishing calcination, and naturally cooling, so as to obtain the multimedia biofilter material. According to the invention, the modified montmorillonite, the activated carbon and the tourmaline are used as raw materials to prepare particles; and the filter material has irregular surface and large specific surface area, is beneficial to microorganism film formation and microorganism protection, and has the characteristics of high flora survival rate, strong adsorption capability and the like, and can assist decoloration and reduce chemical oxygen demand.
Description
technical field [0001] The invention relates to a multi-media biological filter material, and also relates to a preparation method of the biological filter material; the components of the multi-media biological filter material include modified montmorillonite, activated carbon and tourmaline, and the preparation method includes the modified montmorillonite Desoiling, mixing modified montmorillonite, activated carbon and tourmaline to make balls, sintering and other steps. Background technique [0002] Biological aerated filter is a sewage treatment process that emerged in the 1990s and has been widely used in Europe, America and Japan. The principle is based on the first-level treatment, with granular filter material and the microbial film attached to it as the treatment medium, to give full play to the physical filtration, adsorption, and multi-level predation and biological metabolism of microorganisms in the reactor. and so on to achieve pollution removal in the same uni...
Claims
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IPC IPC(8): C04B33/13C01B33/40
Inventor 王林双
Owner SHENZHEN HUASHUI ENVIRONMENTAL PROTECTION TECH