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Solid waste-based porous sewage treatment agent as well as preparation method and application thereof

A sewage treatment agent and pure water technology, applied in water/sewage treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of single sewage treatment index, single utilization object, and low utilization rate of solid waste To achieve the effect of rich internal pores, uniform pores and high porosity

Active Publication Date: 2020-07-07
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the inventors have found that although the sewage treatment agent prepared by the above method utilizes red mud, mineral powder, fly ash and steel slag to a certain extent, it has the following disadvantages: (1) the utilization rate of solid waste is low, Use a single object
(2) The process is complicated and the energy consumption is large
(3) Sewage treatment indicators are single and treatment efficiency is low

Method used

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  • Solid waste-based porous sewage treatment agent as well as preparation method and application thereof

Examples

Experimental program
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Effect test

no. 1 example

[0041] A kind of preparation of solid waste base porous sewage treatment agent, comprises the steps:

[0042] (1) In parts by weight, the raw materials shown in Table 1 are weighed.

[0043] Table 1

[0044] components red mud mineral powder fly ash steel slag Zeolite Compound blowing agent sodium hydroxide Magnesium Aluminum Silicate water content 40 40 20 20 9 8 6 6 52

[0045] (2) Put the red mud, mineral powder, fly ash and steel slag in Table 1 into the forced mixer and stir for 30 minutes, then pour the compound foaming agent, sodium hydroxide, magnesium aluminum silicate and water, and stir evenly pouring the obtained slurry into a spherical mould, and drying after demolding to obtain a spherical porous sewage treatment agent.

no. 2 example

[0047] A kind of preparation of solid waste base porous sewage treatment agent, comprises the steps:

[0048] (1) In parts by weight, the raw materials shown in Table 2 are weighed.

[0049] Table 2

[0050] components red mud mineral powder fly ash steel slag Zeolite Compound blowing agent Sodium silicate polyvinyl alcohol water content 60 30 20 30 10 8 6 8 60

[0051] (2) Put the red mud, slag, fly ash and steel slag in Table 2 into the forced mixer and stir for 30 minutes, then pour the composite foaming agent, sodium hydroxide, magnesium aluminum silicate and water, and stir evenly pouring the obtained slurry into a spherical mould, and drying after demolding to obtain a spherical porous sewage treatment agent.

no. 3 example

[0053] A kind of preparation of solid waste base porous sewage treatment agent, comprises the steps:

[0054] (1) In parts by weight, the raw materials shown in Table 3 are weighed.

[0055] table 3

[0056] components red mud mineral powder fly ash steel slag Zeolite Compound blowing agent sodium bicarbonate Sodium bentonite water content 20 30 10 15 8 7 4 6 35

[0057] (2) Put the red mud, mineral powder, fly ash and steel slag in Table 3 into the forced mixer and stir for 25 minutes, then pour the compound foaming agent, sodium hydroxide, magnesium aluminum silicate and water, and stir evenly pouring the obtained slurry into a spherical mould, and drying after demolding to obtain a spherical porous sewage treatment agent.

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Abstract

The invention relates to the technical field of preparation of sewage treatment agents, in particular to a solid waste-based porous sewage treatment agent as well as a preparation method and application thereof. The solid waste-based porous sewage treatment agent is prepared from the following raw materials in parts by weight: 20 to 60 parts of red mud, 30 to 50 parts of mineral powder, 10 to 30 parts of fly ash, 10 to 30 parts of steel slag, 8 to 10 parts of zeolite, 6-8 parts of a foaming agent, 4-6 parts of an excitant and 6-8 parts of a foam stabilizer. According to the technical scheme, the red mud, the mineral powder, the coal ash and the steel slag serve as main raw materials, the solid waste utilization rate is high, the manufacturing process is simple, the cost is low, and the prepared sewage treatment agent is high in pollutant removal rate.

Description

technical field [0001] The invention relates to the technical field of preparation of sewage treatment agents, in particular to a solid waste-based porous sewage treatment agent and its preparation method and application. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Red mud is the red solid waste slag discharged from the extraction of alumina from bauxite in industry. According to the preparation process, it can be divided into sintering red mud and Bayer red mud. According to statistics, the annual discharge of red mud in the world is about 60 million tons, and the annual output of red mud in my country alone reaches 6 million tons, and all of them are stored by open-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B38/00C02F1/28
CPCC02F1/288C04B28/006C04B18/0409C04B18/142C04B18/08C04B14/047C04B2103/42C04B22/062C04B22/10C04B12/04C04B22/165C04B24/04C04B22/147C04B22/0093C04B2103/48C04B38/00
Inventor 李召峰陈经棚张健张晨高益凡
Owner SHANDONG UNIV
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