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A kind of preparation method of biological filter material for water purification treatment

A biological filter material and water purification technology, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as unfavorable microbial adsorption and film formation, and porosity reduction. Achieve the effects of increasing the amount of biofilm, increasing porosity, and increasing temperature resistance

Active Publication Date: 2022-03-29
江苏依斯普节能新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the publication number is CN109336251A Chinese Invention Patent. Wood chips, bark, straw, and starch are added to organic miscible glue and loaded onto the surface of carbon fiber by electrostatic spraying. After spraying, the surface of carbon fiber becomes smoother and the porosity decreases, which is not conducive to microorganisms. Adsorption and hanging film

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A preparation method for water purification treatment biological filter material, comprising the following steps:

[0031] 1. Raw material pretreatment:

[0032] (1) After cleaning 5kg of pine bark and 0.5kg of corn stalks produced in northern China, cut them to below 1cm*1cm*1cm, add 5kg of 5% dilute sulfuric acid solution and mix well, stir and keep warm in a constant temperature water bath at 60-70℃ 1-2h, after filtering, keep 30-50℃ for low temperature drying;

[0033] (2) Take dilute acid aqueous sol, silica sol and alumina sol and mix basic aluminum salt solution, and mix them in a hydrothermal environment at 100-110°C to obtain silica-alumina composite sol, silica and alumina The weight ratio is 70:30, keep warm for 10-30min;

[0034] Configure a modified maleic anhydride acrylic acid solution: select 2 parts by weight of acrylic acid, 3 parts by weight of maleic anhydride, 90 parts by weight of water, and 0.5 parts by weight of potassium persulfate, and react ...

Embodiment 2

[0046] A preparation method for water purification treatment biological filter material, comprising the following steps:

[0047] 2. Raw material pretreatment:

[0048] (1) After cleaning 5kg of pine bark and 1kg of corn stalks from northern China, cut them to less than 1cm*1cm*1cm, add 7kg of 5% dilute sulfuric acid solution to mix, and keep stirring in a constant temperature water bath at 60-70°C for 1 -2h, after filtering, keep 30-50°C for low temperature drying;

[0049] (2) Take dilute acid aqueous sol, silica sol and alumina sol and mix basic aluminum salt solution, and mix them in a hydrothermal environment at 100-110°C to obtain silica-alumina composite sol, silica and alumina The weight ratio is 80:20, keep warm for 10-30min;

[0050]Configure a modified maleic anhydride acrylic acid solution: select 2 parts by weight of acrylic acid, 3 parts by weight of maleic anhydride, 90 parts by weight of water, and 0.5 parts by weight of potassium persulfate, and react at 85°...

Embodiment 3

[0060] A preparation method for water purification treatment biological filter material, comprising the following steps:

[0061] 3. Raw material pretreatment:

[0062] (1) After cleaning 5kg of pine bark and 1.5kg of corn stalks produced in northern China, cut them to below 1cm*1cm*1cm, add 7kg of 5% dilute sulfuric acid solution and mix well, stir and keep warm in a constant temperature water bath at 60-70℃ 1-2h, after filtering, keep 30-50℃ for low temperature drying;

[0063] (2) Take dilute acid aqueous sol, silica sol and alumina sol and mix basic aluminum salt solution, and mix them in a hydrothermal environment at 100-110°C to obtain silica-alumina composite sol, silica and alumina The weight ratio is 80:20, keep warm for 10-30min;

[0064] Configure a modified maleic anhydride acrylic acid solution: select 2 parts by weight of acrylic acid, 3 parts by weight of maleic anhydride, 90 parts by weight of water, and 0.5 parts by weight of potassium persulfate, and react ...

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Abstract

The invention discloses a preparation method of a biological filter material for water purification treatment: after cleaning with pine bark and corn stalks respectively, cutting to below 1cm*1cm*1cm, dilute acid treatment uses silicon-aluminum composite sol and modified Malay Acid anhydride acrylic acid solution to modify it, then dry carbonization and cool to room temperature. The invention has easy-to-obtain raw materials, low price, simple preparation process, long service life, large specific surface area, good decolorization ability and photocatalytic performance, and wide application range.

Description

technical field [0001] The invention relates to the field of water purification treatment, in particular to a preparation method of a biological filter material for water purification treatment. Background technique [0002] With the development of economy and society and the growth of population, water bodies are increasingly polluted by domestic sewage and industrial sewage from metallurgy, petroleum, chemical industry, textile, papermaking, etc., and the discharge rate far exceeds the self-purification capacity of water bodies. treatment methods to intervene. The existing sewage treatment methods include physical methods, biological methods, and chemical methods according to their functions. The treatment degree of biological method is higher than that of physical method, and the cost is lower than that of chemical method. It is the most widely used sewage treatment method. According to the treatment process, biological methods mainly include activated sludge method, na...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/10C02F3/00
CPCC02F3/105C02F3/106C02F3/107C02F3/00Y02W10/10
Inventor 刘东孙俊杰卢俊肖潇
Owner 江苏依斯普节能新材料有限公司
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