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Bio-adsorbent prepared by utilizing kelp extract

A biosorbent and kelp extract technology, applied in the field of water pollution treatment, can solve the problems of poor sedimentation performance, difficult regeneration, toxicity of treatment agents, etc., and achieve a safe and harmless treatment process

Inactive Publication Date: 2018-10-16
HEFEI HUIGU AGRI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Heavy metals discharged with wastewater, even if the concentration is small, can also accumulate in algae and sediment; be absorbed by the surface of fish and shellfish, resulting in food chain concentration, thus causing public nuisance
[0004] Traditional heavy metal industrial wastewater treatment methods include chemical precipitation, ion exchange, electrochemical treatment and membrane treatment technology. Although these treatment methods have good treatment effects, they are generally expensive, poor in sedimentation performance, and difficult to regenerate question
Some treatment agents even have toxicity problems, which cannot be used in aquaculture water bodies

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A biosorbent prepared by using kelp extract, according to the mass parts, the components of the biosorbent include: 40 parts of phosphogypsum, 10 parts of montmorillonite, 4 parts of mercapto lignocellulose, 5 parts of attapulgite, B 3 parts of diol, 14 parts of kelp extract, 3 parts of additives.

[0024] The auxiliary agent contains polyacrylamide, polyaluminum chloride and magnesium oxide, and the mass ratio of the three is 3:2:2.

[0025] Mercaptocellulose is prepared by chemical reaction of lignocellulose, thioglycolic acid and acetic anhydride.

[0026] In the present embodiment, the preparation method of kelp extract comprises the following steps:

[0027] Dry the echinoderm and kelp and grind them, mix the echinoderm dry powder and kelp dry powder at a ratio of 1:3, add the dry powder mixture to 8 times the volume of 1mol / L sodium hydroxide solution, and stir and react at 42°C for 3h , filter to obtain the supernatant, add 0.2 times the volume of trypsin solut...

Embodiment 2

[0032] A biosorbent prepared by using kelp extract, according to the mass parts, the components of the biosorbent include: 45 parts of phosphogypsum, 16 parts of montmorillonite, 8 parts of mercapto lignocellulose, 10 parts of attapulgite, B 5 parts of diol, 19 parts of kelp extract, 6 parts of additives.

[0033] The auxiliary agent contains polyacrylamide, polyaluminum chloride and magnesium oxide, and the mass ratio of the three is 3:2:2.

[0034] Mercaptocellulose is prepared by chemical reaction of lignocellulose, thioglycolic acid and acetic anhydride.

[0035] In the present embodiment, the preparation method of kelp extract comprises the following steps:

[0036] The echinoderm and kelp are dried and pulverized, and the echinoderm dry powder and kelp dry powder are mixed at a ratio of 1:3, and the dry powder mixture is added to 10 times the volume of 1mol / L sodium hydroxide solution, and the reaction is stirred at 45°C for 4h , filter to obtain the supernatant, add 0...

Embodiment 3

[0041] A biosorbent prepared by using kelp extract, according to the mass parts, the components of the biosorbent include: 43 parts of phosphogypsum, 14 parts of montmorillonite, 6 parts of mercapto lignocellulose, 8 parts of attapulgite, B 4 parts of diol, 17 parts of kelp extract, 5 parts of additives.

[0042] The auxiliary agent contains polyacrylamide, polyaluminum chloride and magnesium oxide, and the mass ratio of the three is 3:2:2.

[0043] Mercaptocellulose is prepared by chemical reaction of lignocellulose, thioglycolic acid and acetic anhydride.

[0044] In the present embodiment, the preparation method of kelp extract comprises the following steps:

[0045] Dry the echinoderm and kelp and grind them, mix the echinoderm dry powder and kelp dry powder at a ratio of 1:3, add the dry powder mixture to 9 times the volume of 1mol / L sodium hydroxide solution, and stir the reaction at a temperature of 43°C for 3.5 h, filter to obtain the supernatant, add 0.2 times the v...

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PUM

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Abstract

The invention relates to the technical field of water pollution treatment, specifically to a bio-adsorbent prepared by utilizing kelp extract. The bio-adsorbent comprises the following components in parts by mass: 40-45 parts of phosphogypsum, 10-16 parts of montmorillonoid, 4-8 parts of mercapto lignocellulose, 5-10 parts of attapulgite, 3-5 parts of ethylene glycol, 14-19 parts of kelp extract and 3-6 parts of aids, wherein the aids comprise polyacrylamide, aluminum polychloride and magnesium oxide; a mass ratio of the polyacrylamide to aluminum polychloride to magnesium oxide islignocellulose 3:2:2; the mercapto cellulose is prepared by carrying out a chemical reaction on lignocellulose, mercaptoacetic acid and acetic anhydride. The kelp extract in the bio-adsorbent contains a pluralityof kinds of polysaccharide organic matters, and the matters are capable of improving the selective adsorption of the adsorbent to heavy metals. Therefore, the bio-adsorbent is high in adsorption efficiency, non-toxic and free of pollution, and is very suitable for heavy metal adsorption of aquatic water.

Description

technical field [0001] The invention relates to the technical field of water pollution treatment, in particular to a biosorbent prepared by using kelp extract. Background technique [0002] With the continuous increase of pollutants produced in people's life and industrial and agricultural production, the problems of air pollution, water pollution and soil pollution in the environment are becoming more and more serious. After these pollutants are discharged into the environment, they will be reabsorbed by the human body through life activities such as breathing and eating, thereby affecting human health. Among them, the problem of water pollution is one of the most important environmental protection issues. The sewage generated in the process of human life or production contains a large amount of harmful organic matter and heavy metal elements. If the sewage cannot be effectively treated and flows into natural water bodies, it will be Pollution of water resources such as ri...

Claims

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Application Information

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IPC IPC(8): B01J20/30B01J20/24C02F1/28B01D11/02C02F103/20
CPCB01D11/02B01J20/045B01J20/12B01J20/22B01J20/24B01J2220/46C02F1/281C02F1/286C02F2103/20
Inventor 刘利
Owner HEFEI HUIGU AGRI TECH CO LTD