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Preparation method of water treatment ceramsite filter material

A ceramsite filter material and water treatment technology, applied in water/sewage treatment, adsorbed water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of reducing the removal efficiency of pollutants in water, etc. Good stability and strong pressure resistance

Active Publication Date: 2018-11-20
嘉兴如运建筑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the ceramsite filter material is used for water treatment, its large specific surface and porous characteristics need to be fully utilized. However, after a period of use, the removal efficiency of pollutants in water will be greatly reduced due to the increase of organic matter adsorbed on the surface.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method for water treatment ceramsite filter material, comprising the following process steps:

[0025] Step 1: Preparation of zinc-boron organic solution

[0026] 1.1 Add 430mL of ethanol, 20mL of tributyl borate, and 15g of zinc acetate into a 1L round-bottomed flask in sequence, install a spherical condenser, use tap water as the cooling medium, place the flask in a constant temperature water bath at 70°C, and keep it under reflux at this temperature for 30 minutes;

[0027] 1.2 Continue to add 11g of polyethylene glycol with a molecular weight of 20,000, 3mL of acetic acid, and 6mL of acetylacetone into the flask, and continue to reflux at 70°C for 50min to prepare a zinc-boron organic solution.

[0028] Step 2: Activation of Ceramsite

[0029] 2.1 Mix 500mL 0.5mol / L hydrochloric acid solution and 30g ceramsite (diameter 2mm) in a 1L round bottom flask, install a straight condenser, use tap water as the cooling medium, heat the solution in the flask to...

Embodiment 2

[0040] A preparation method for water treatment ceramsite filter material, comprising the following process steps:

[0041] Step 1: Preparation of zinc boron organic solution

[0042] 1.1 Add 520mL of ethanol, 23mL of tributyl borate, and 17g of zinc acetate into a 1L round-bottomed flask in turn, install a spherical condenser, use tap water as the cooling medium, place the flask in a constant temperature water bath at 70°C, and keep it under reflux at this temperature for 30 minutes;

[0043] 1.2 Continue to add 13g of polyethylene glycol with a molecular weight of 20,000, 5mL of acetic acid, and 8mL of acetylacetone into the flask, and continue to heat and reflux at 70°C for 50min to prepare a zinc-boron organic solution.

[0044] Step 2: Activation of Ceramsite

[0045] 2.1 Mix 500mL 0.5mol / L hydrochloric acid solution and 30g ceramsite (diameter 5mm) in a 1L round bottom flask, install a straight condenser, use tap water as the cooling medium, heat the solution in the fla...

Embodiment 3

[0056] A preparation method for water treatment ceramsite filter material, comprising the following process steps:

[0057] Step 1: Preparation of zinc boron organic solution

[0058]1.1 Add 620mL of ethanol, 26mL of tributyl borate, and 23g of zinc acetate into a 1L round-bottomed flask in sequence, install a spherical condenser, use tap water as the cooling medium, place the flask in a constant temperature water bath at 70°C, and keep it under reflux at this temperature for 30 minutes;

[0059] 1.2 Continue to add 15g of polyethylene glycol with a molecular weight of 20,000, 7mL of acetic acid, and 10mL of acetylacetone into the flask, and continue to reflux at 70°C for 50min to prepare a zinc-boron organic solution.

[0060] Step 2: Activation of Ceramsite

[0061] 2.1 Mix 500mL 0.5mol / L hydrochloric acid solution and 30g ceramsite (diameter 8mm) in a 1L round bottom flask, install a straight condenser, use tap water as the cooling medium, heat the solution in the flask to...

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Abstract

The invention discloses a preparation method of a water treatment ceramsite filter material and belongs to the field of water pollution purification materials. The preparation method comprises technological steps as follows: alcohol, tributyl borate and zinc acetate flow back, polyethylene glycol with the molecular weight being 20,000, acetic acid and acetylacetone are added and then flow back, and an organic zinc-boron solution is prepared; ceramsite is activated as follows: hydrochloric acid with the concentration being 0.5 mol / L and the ceramsite flow back, and the activated ceramsite is prepared through filtering, cleaning, drying and calcination; the ceramsite and zinc-oxide-boron are bonded as follows: the organic zinc-boron solution and the activated ceramsite are subjected to a reaction in a stainless steel high-pressure reactor, and cooling, filtering and cleaning are performed; drying and heat treatment are performed as follows: zinc-oxide-boron-bonded ceramsite is dried andcalcined, and then the water treatment ceramsite filter material is prepared. The water treatment ceramsite filter material is applicable to purification treatment of all kinds of sewage containing organic pollutants.

Description

technical field [0001] The invention belongs to the field of water pollution purification materials, and in particular relates to a preparation method of ceramsite filter material for water treatment. Background technique [0002] The appearance of the water treatment ceramsite filter material is nearly spherical particles, and the surface is yellow-red or dark brown. In terms of physical microstructure, the micropores on the surface are developed and distributed reasonably, and the average pore diameter is about 200 microns. At the same time, the ceramsite filter material The specific surface area is large, which can increase the volume load of the biological aerated filter and significantly increase the degradation rate; in addition, the product is light in texture, high in strength, resistant to friction, washable, and does not release toxic and harmful substances to the water body. Physical, chemical and hydraulic properties can be adapted to the requirements of differen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/30C02F1/28B01J23/06C02F101/30
CPCB01J20/223C02F1/285B01J20/30B01J23/002B01J23/06C02F2101/30B01J35/39
Inventor 张文杰张悦韩铭李昊伦董英昊
Owner 嘉兴如运建筑科技有限公司