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Preparation method of biological filter filler and biological aerated filter

The technology of biological filter and activated carbon powder is applied in the preparation of biological filter filler and the field of aerated biological filter, which can solve the problems of restricting the popularization and application of biological aerated filter, poor microbial adsorption, small porosity, etc. To achieve the effect of being conducive to adhesion and growth, not easy to break, not easy to harden

Active Publication Date: 2022-04-12
HUNAN SANYOU ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Filler is an important part of biological aerated filter. Common fillers include quartz sand, anthracite, activated carbon, garnet, ilmenite and other natural materials, as well as fired materials such as ceramsite. These fillers are more or less There are defects such as poor strength, small porosity, and poor adsorption to microorganisms, which limit the popularization and application of biological aerated filter technology in the field of water treatment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The preparation method of biofilter filler, comprises the steps:

[0026] (1) Fe 3 o 4 The powder and activated carbon powder are added in the KH550 aqueous solution at a weight ratio of 6:1. The dosage of KH550 is 1% of the weight of the solids. Ultrasound and stir for 40 minutes at 50°C to make a suspension;

[0027] (2) add carboxymethyl cellulose in the suspension that step (1) makes, consumption is Fe 3 o 4 3% of the total weight of the powder and activated carbon powder is prepared into a slurry, then dried and ground to make a composite powder;

[0028] (3) Crushing volcanic rock (black) with a crusher, sieving after crushing, and selecting particles with a particle size of 1 to 2 mm as raw material;

[0029] (4) Weigh 35 parts by weight of raw meal, 25 parts by weight of fly ash, 35 parts by weight of clay, 5 parts by weight of pore-forming agent, and 42 parts by weight of the above-mentioned composite powder in step (3), mix at high speed, and add 30 parts ...

Embodiment 2

[0032] The preparation method of biofilter filler, comprises the steps:

[0033] (1) Fe 3 o 4 The powder and activated carbon powder are added in the KH550 aqueous solution at a weight ratio of 8:1. The dosage of KH550 is 1.2% of the weight of the solids. Ultrasound and stir for 50 minutes at 50°C to make a suspension;

[0034] (2) add carboxymethyl cellulose in the suspension that step (1) makes, consumption is Fe 3 o 4 5% of the total weight of powder and activated carbon powder is prepared into a slurry, then dried and ground to make a composite powder;

[0035] (3) Crushing volcanic rock (black) with a crusher, sieving after crushing, and selecting particles with a particle size of 1 to 2 mm as raw material;

[0036] (4) Weigh 40 parts by weight of raw meal, 28 parts by weight of fly ash, 40 parts by weight of clay, 6 parts by weight of pore-forming agent, and 45 parts by weight of the above-mentioned composite powder in step (3), mix at high speed, and add 35 parts by...

Embodiment 3

[0039] The preparation method of biofilter filler, comprises the steps:

[0040] (1) Fe 3 o 4 The powder and activated carbon powder are added in the KH550 aqueous solution in a weight ratio of 4:1. The dosage of KH550 is 0.5% of the weight of the solids. Ultrasound and stir for 50 minutes at 50°C to make a suspension;

[0041] (2) add carboxymethyl cellulose in the suspension that step (1) makes, consumption is Fe 3 o 4 5% of the total weight of powder and activated carbon powder is prepared into a slurry, then dried and ground to make a composite powder;

[0042] (3) Crushing volcanic rock (black) with a crusher, sieving after crushing, and selecting particles with a particle size of 1 to 2 mm as raw material;

[0043] (4) Weigh 30 parts by weight of raw meal, 22 parts by weight of fly ash, 30 parts by weight of clay, 4 parts by weight of pore-forming agent, and 35 parts by weight of the above-mentioned composite powder in step (3), mix at high speed, and add 25 parts by...

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Abstract

The invention discloses a preparation method of a biological filter filler and a biological aerated filter. The preparation method comprises: adding Fe 3 o 4 Powder and activated carbon powder are added to the aqueous solution of silane coupling agent, ultrasonically and stirred to make a suspension; carboxymethyl cellulose is added to the suspension to make a slurry, then dried and ground to make a composite powder; Weigh 30-40 parts by weight of volcanic rock particles, 20-30 parts by weight of fly ash, 30-40 parts by weight of clay, 4-8 parts by weight of pore-forming agent, and 35-50 parts by weight of the composite powder, mix well, add water 25-35 parts by weight, granulated to make granules; the granules are preheated to 105-115° C., then roasted at 500-700° C., cooled, and magnetized to make biofilter fillers. The method has simple process, and the prepared biofilter filler has high ammonia nitrogen removal rate, strong decontamination ability and better mechanical strength.

Description

technical field [0001] The invention relates to the technical field of biological filters, in particular to a preparation method of a biological filter filler and a biological aerated filter. Background technique [0002] The biological aerated filter technology integrates sewage biological treatment and deep filtration. Compared with traditional sewage treatment processes, it has many advantages such as small footprint, low energy consumption, high efficiency, and easy management. Filler is an important part of biological aerated filter. Common fillers include quartz sand, anthracite, activated carbon, garnet, ilmenite and other natural materials, as well as fired materials such as ceramsite. These fillers are more or less There are defects such as poor strength, small porosity, and poor adsorption to microorganisms, which limit the popularization and application of biological aerated filter technology in the field of water treatment. Contents of the invention [0003] T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/10C02F101/16
CPCC02F3/105C02F2101/16Y02W10/10
Inventor 易境巢真韩红波柴晓利侯丹
Owner HUNAN SANYOU ENVIRONMENTAL TECH CO LTD
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