A solid waste-based porous sewage treatment agent and its preparation method and application

A technology of sewage treatment agent and activator, which is applied in water/sewage treatment, adsorbed water/sewage treatment, water/sludge/sewage treatment, etc. It can solve the problem of single sewage treatment index, low solid waste utilization rate and single utilization object and other problems, to achieve the effect of rich internal pores, high porosity and uniform pores

Active Publication Date: 2021-10-08
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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  • A solid waste-based porous sewage treatment agent and its preparation method and application

Examples

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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 and its preparation method and application. In parts by weight, the raw material composition of the solid waste-based porous sewage treatment agent includes the following components: 20-60 parts of red mud, 30-50 parts of mineral powder, 10-30 parts of fly ash, 10-30 parts of steel slag, zeolite 8-10 parts; foaming agent 6-8 parts, activator 4-6 parts, foam stabilizer 6-8 parts. The technical scheme of the invention uses red mud, mineral powder, fly ash and steel slag as main raw materials, not only has high solid waste utilization rate, simple manufacturing process and low cost, but also the prepared sewage treatment agent has high 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 Patents(China)
IPC IPC(8): B01J20/16B01J20/10C04B28/00C04B38/00C02F1/28
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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