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A bio-affinity and hydrophilic magnetic sludge clay sand carrier and its preparation method

An affinity, sludge technology, applied in biological water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the biological affinity promotion and activation, hydrophilicity and sewage Insufficient treatment effect, consumption of solid waste, etc

Active Publication Date: 2016-03-23
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: In order to overcome the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a kind of bio-affinity hydrophilic magnetic sludge pottery sand carrier and its preparation method, to solve the problem of bio-affinity of the bio-carrier in practical application, and to microorganisms. There are many problems such as promotion and activation, hydrophilicity and insufficient sewage treatment effect, and it also consumes difficult-to-treat solid waste such as sludge, silt, and fly ash

Method used

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  • A bio-affinity and hydrophilic magnetic sludge clay sand carrier and its preparation method
  • A bio-affinity and hydrophilic magnetic sludge clay sand carrier and its preparation method
  • A bio-affinity and hydrophilic magnetic sludge clay sand carrier and its preparation method

Examples

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Effect test

Embodiment 1

[0037] Bio-affinity and hydrophilic magnetic sludge clay sand carrier, made of at least the following components by weight: 15 parts of sludge, 41 parts of fly ash, 15 parts of Portland cement, 8 parts of lime, 2 parts of gypsum, clay 2 parts, 2 parts of sodium hydroxide, 5 parts of water glass, 2 parts of sodium bicarbonate, 5 parts of alnico magnetic powder, 1 part of chitosan and stearic acid with a mass ratio of 1:1, and 2 parts of polyacrylic acid.

[0038] Its preparation method comprises the following steps:

[0039] (1) Grind fly ash, cement, clay, lime, gypsum, and magnetic powder, pass through a 140-mesh sieve, and dry at 100°C;

[0040] (2) The activator and the binder are respectively configured into an aqueous solution; the concentration of the activator aqueous solution is 2.86mol / L; the concentration of the binder aqueous solution is 2.34mol / L;

[0041] (3) Mixing and forming into balls: take fly ash, cement, lime, gypsum, sludge, magnetic powder, clay, pore-fo...

Embodiment 2

[0048] Bio-affinity and hydrophilic magnetic sludge clay sand carrier, made of at least the following components by weight: 10 parts of sludge, 50 parts of fly ash, 10 parts of Portland cement, 10 parts of lime, 1 part of gypsum, and 10 parts of clay 0.5 parts of potassium hydroxide, 0.5 parts of white latex, 0.5 parts of hydrogen peroxide, 10 parts of iron-chromium-cobalt magnetic powder, 0.5 parts of calcium carbonate, and 0.5 parts of polyacrylic acid.

[0049] Its preparation method comprises the following steps:

[0050](1) Grind fly ash, cement, clay, lime, gypsum, and magnetic powder, pass through a 100-mesh sieve, and dry at 90°C;

[0051] (2) The activator and the binder are respectively configured into an aqueous solution; the concentration of the activator aqueous solution is 2mol / L; the concentration of the binder aqueous solution is 3mol / L;

[0052] (3) Mixing and forming into balls: take fly ash, cement, lime, gypsum, silt, magnetic powder, clay, pore-forming ag...

Embodiment 3

[0059] Bio-affinity and hydrophilic magnetic sludge clay sand carrier, made of at least the following components by weight: 60 parts of sludge, 10 parts of fly ash, 60 parts of Portland cement, 4 parts of lime, 15 parts of gypsum, clay 30 parts, 10 parts of magnesium hydroxide, 10 parts of white latex, 10 parts of aluminum powder, 0.5 parts of ferrite magnetic powder, 10 parts of calcium alginate and hydroxyapatite with a mass ratio of 3:7, 10 parts of polyethylene glycol .

[0060] Its preparation method comprises the following steps:

[0061] (1) Grind fly ash, cement, clay, lime, gypsum, and magnetic powder, pass through a 200-mesh sieve, and dry at 110°C;

[0062] (2) The activator and the binder are respectively configured into an aqueous solution; the concentration of the activator aqueous solution is 3mol / L; the concentration of the binder aqueous solution is 2mol / L;

[0063] (3) Mixing and forming into balls: take fly ash, cement, lime, gypsum, sludge, magnetic powde...

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Abstract

The invention provides a biocompatible hydrophilic magnetic sludge fine aggregate carrier. The carrier is at least prepared from components in parts by weight as follows: 10-60 parts of silt or sludge, 10-50 parts of fly ash, 10-60 parts of cement, 4-20 parts of lime, 1-15 parts of gypsum, 2-30 parts of clay, 0-10 parts of an activator, 0-15 parts of a binder, 0-15 parts of a pore-forming agent, 0-20 parts of magnetic powder, 0-10 parts of a biocompatible substance and 0-10 parts of a hydrophilic agent. The invention further provides a preparation method of the fine aggregate carrier. According to the fine aggregate carrier, intractable solid waste such as the silt, the sludge, the fly ash and the like is consumed, a reliable way is provided for treatment of the solid waste such as the silt, the sludge and the fly ash, problems that biological carriers are poor in biocompatibility, poor in microorganism promotion and activation effect, insufficient in hydrophilic performance and sewage treatment effect and the like are solved, and the prepared fine aggregate carrier has the advantages of good mechanical property, high in biofilm forming speed, good in biological hydrophilic performance and sewage treatment effect and the like.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a bio-affinity and hydrophilic magnetic sludge clay sand carrier, and also relates to a preparation method of the carrier. Background technique [0002] Dredging mud is a kind of waste that occurs in large quantities, and the disposal of mud will pollute the environment. In the Pearl River Delta region of my country, the annual dredging mud usually reaches 80 million m 3 about. In order to improve the improvement of rural rivers, Jiangsu Provincial Finance issued the first batch of 370 million yuan for rural river improvement in July 2012, including 190 million yuan for county and township river dredging, 180 million yuan for village river and pond improvement, and 360 million m3 of dredging and improvement earthwork 3 . In the east route project of the North-South Water Diversion Project, the cost of land acquisition for the dredged silt reached 64...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/26C04B28/10C04B28/04C02F3/10C04B18/08C04B18/30
CPCY02W10/10Y02W30/91
Inventor 祝建中朱志芳何敏霞崔延松史海波
Owner HOHAI UNIV
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