Unlock instant, AI-driven research and patent intelligence for your innovation.

Modified ceramsite filler for adsorption and preparation method thereof

A ceramsite and modified technology, which is applied in the field of adsorbed modified ceramsite filler and its preparation, can solve the problems of being unable to meet the needs of sewage treatment, achieve good chemical and thermal stability, enhance adsorption capacity, and increase porosity Effect

Active Publication Date: 2021-02-26
WENZHOU IND SCI RES INST
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, although ceramsite is a cheap and widely used filler, the physical characteristics of unmodified ceramsite filler such as specific surface area, pore volume, mechanical strength, and anti-scouring wear performance cannot meet the needs of sewage treatment. Therefore, it is necessary to Modify the ceramsite filler to increase the specific surface area, pore volume, connectivity and other characteristics of the porous ceramsite filler, so as to meet the requirements of sewage treatment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Modified ceramsite filler for adsorption and preparation method thereof
  • Modified ceramsite filler for adsorption and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of modified ceramsite filler for adsorption and preparation method thereof

[0031] The modified ceramsite filler used for adsorption includes by weight: 40kg of clay, 40kg of bentonite, 20kg of silica powder, 80kg of red mud, 2kg of sodium carboxymethyl cellulose, 1kg of ammonium sulfate, 10kg of modifier, 5kg of water glass, Binder 1kg, pore-forming agent 2kg.

[0032] In this embodiment, the modifier is a mixed solution composed of ferric chloride solution and ferrous sulfate solution at a mass ratio of 1:0.5.

[0033] The preparation method of the above-mentioned modified ceramsite filler for adsorption comprises the following steps:

[0034]Step (1): Mix the clay, bentonite, silica powder, and red mud in the above parts by weight evenly, soak in hot water for 24 hours, and then dry; grind the soaked and dried mixture into a fine powder in a grinder, Screening out the powder with a particle size of ≤0.05mm; and then fully mixing with the above-mentioned por...

Embodiment 2

[0041] A kind of modified ceramsite filler for adsorption and preparation method thereof

[0042] The modified ceramsite filler used for adsorption includes: clay 50kg, bentonite 50kg, silica powder 35kg, red mud 85kg, carboxymethyl cellulose sodium 4kg, ammonium sulfate 2kg, modifier 15kg, water glass 7kg, Binder 1.5kg, pore-forming agent 2.5kg.

[0043] In this embodiment, the modifier is a mixed solution composed of ferric chloride solution and ferrous sulfate solution at a mass ratio of 1.3:0.8.

[0044] The preparation method of the above-mentioned modified ceramsite filler for adsorption comprises the following steps:

[0045] Step (1): Mix the clay, bentonite, silica powder, and red mud in the above parts by weight evenly, soak in hot water for 24 hours, and then dry; grind the soaked and dried mixture into a fine powder in a grinder, Screening out the powder with a particle size of ≤0.05mm; and then fully mixing with the above-mentioned pore-forming agent by weight t...

Embodiment 3

[0052] A kind of modified ceramsite filler for adsorption and preparation method thereof

[0053] The modified ceramsite filler used for adsorption includes: clay 50kg, bentonite 50kg, silica powder 25kg, red mud 100kg, carboxymethyl cellulose sodium 6kg, ammonium sulfate 3kg, modifier 30kg, water glass 7kg, Binder 2kg, pore-forming agent 4kg.

[0054] In this embodiment, the modifier is a mixed solution composed of ferric chloride solution and ferrous sulfate solution at a mass ratio of 1.5:1.

[0055] The preparation method of the above-mentioned modified ceramsite filler for adsorption comprises the following steps:

[0056] Step (1): Mix the clay, bentonite, silica powder, and red mud in the above parts by weight evenly, soak in hot water for 24 hours, and then dry; grind the soaked and dried mixture into a fine powder in a grinder, Screening out the powder with a particle size of ≤0.05mm; and then fully mixing with the above-mentioned pore-forming agent by weight to obt...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Granularityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a modified ceramsite filler for adsorption and a preparation method thereof. The modified ceramsite filler for adsorption comprises the following components in parts by weight:40-60 parts of clay, 40-60 parts of bentonite, 20-35 parts of silica powder, 80-100 parts of red mud, 2-10 parts of sodium carboxymethyl cellulose, 1-5 parts of ammonium sulfate, 10-40 parts of a modifier, 5-10 parts of water glass, 1-3 parts of a binder and 2-6 parts of a pore forming agent, wherein the mass ratio of the clay to the bentonite to the silica powder to the red mud is (1-1.5): 1-1.5: 0.5-0.7:(2-2.5). The clay, the bentonite, the silica powder and the red mud are used as main raw materials, specific auxiliaries are added and mixed uniformly, and the prepared modified ceramsite filler for adsorption is rough in surface, large in specific surface area, high in porosity, hard in surface, good in chemical and thermal stability, good in adsorption capacity, easy to regenerate, simple in process, wide in application range, economical and practical.

Description

technical field [0001] The invention relates to the fields of water treatment and environment-friendly materials, in particular to a modified ceramsite filler for adsorption and a preparation method thereof. Background technique [0002] With the development of my country's industry, the discharge of industrial wastewater is increasing day by day. The industrial wastewater that does not meet the discharge standards pollutes surface water and groundwater after discharge, seriously affecting water quality, especially from mines, smelting, electrolysis, electroplating, pesticides, paints, pigments The heavy metal wastewater discharged by enterprises such as heavy metal wastewater, mercury, cadmium, lead, chromium and other biologically toxic heavy metals contained in heavy metal wastewater are relatively stable in water and difficult to be degraded by microorganisms in water, so special and reasonable sewage treatment processes are required to treat them. deal with. The treatmen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C04B38/06C04B33/132C04B33/13C04B33/04B01J20/12B01J20/30C02F1/28
CPCC04B38/067C04B38/0645C04B38/009C04B33/1322C04B33/131C04B33/13C04B33/04B01J20/12B01J20/103B01J20/10B01J20/08B01J20/06C02F1/281B01J2220/4806B01J2220/4825B01J2220/4887C04B2235/6567Y02P40/60
Inventor 黄志达管鸿才郑卉邵建雷
Owner WENZHOU IND SCI RES INST