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Modified attapulgite powder for coagulation algae removal

A soil powder and modification technology, which is applied in the fields of flocculation/sedimentation water/sewage treatment, water/sewage treatment, sterilization/microdynamic water/sewage treatment, etc. Water pollution and other problems, to shorten the coagulation and sedimentation time, increase the specific surface area, and enhance the adsorption performance.

Inactive Publication Date: 2020-02-07
南京山禾生态环境有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among these algae removal methods, either the cost is too high to be popularized, or the effect of algae removal is not ideal, or the use of chemical reagents has brought secondary pollution to the water body.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A modified attapulgite powder for coagulation and algae removal comprises the following raw materials in parts by weight: 100 parts by weight of attapulgite, 1 part by weight of tea saponin, and the attapulgite is 200-300 mesh.

[0024] Its preparation method is:

[0025] S1. Calcining 500 g of attapulgite at a temperature of 200° C. for 2 hours and cooling to room temperature;

[0026] S2. Add 5kg of acetone into the autoclave, disperse the attapulgite into the acetone, set the pressure of the autoclave to 3.5MPa, the reaction temperature to 160°C, react for 6h, and cool to 75°C;

[0027] S3. Put 5 g of commercially available tea saponin powder into the above reaction solution, disperse and cool to obtain a precipitated mixture of tea saponin and attapulgite, and dry it to make modified attapulgite powder.

Embodiment 2

[0029] A modified attapulgite powder for coagulation and algae removal comprises the following raw materials in parts by weight: 100 parts by weight of attapulgite, 2 parts by weight of tea saponin, and the attapulgite is 200-300 mesh.

[0030] Its preparation method is:

[0031] S1. Calcining 500 g of attapulgite at a temperature of 200° C. for 2 hours and cooling to room temperature;

[0032] S2. Add 5kg of acetone into the autoclave, disperse the attapulgite into the acetone, set the pressure of the autoclave to 4MPa, the reaction temperature to 120°C, react for 6h, and cool to 75°C;

[0033] S3. Put 10 g of commercially available tea saponin powder into the above reaction solution, disperse and cool to obtain a precipitated mixture of tea saponin and attapulgite, and dry it to make modified attapulgite powder.

Embodiment 3

[0035] A modified attapulgite powder for coagulation and algae removal comprises the following raw materials in parts by weight: 100 parts by weight of attapulgite, 3 parts by weight of tea saponin, and the attapulgite is 200-300 mesh.

[0036] Its preparation method is:

[0037] S1. Calcining 500 g of attapulgite at a temperature of 200° C. for 2 hours and cooling to room temperature;

[0038] S2. Add 5kg of acetone into the autoclave, disperse the above-mentioned attapulgite into the acetone, set the pressure of the autoclave to 4MPa, the reaction temperature to 160°C, react for 6h, and cool to 75°C;

[0039] S3. Put 15 g of commercially available tea saponin powder into the above reaction solution, disperse and cool to obtain a precipitated mixture of tea saponin and attapulgite, and dry it to prepare a modified attapulgite powder.

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Abstract

The invention provides modified attapulgite powder for coagulation algae removal. The modified attapulgite powder comprises the following raw materials in parts by weight: 100 parts of attapulgite and1-5 parts of tea saponin. The preparation method comprises the following steps: calcining the attapulgite at 200-300 DEG C for 2 hours, and cooling to room temperature; adding acetone into the attapulgite in the mass ratio of acetone to attapulgite of 1: (10-100), reacting for 2-6 hours under the pressure of 3-4MPa and the reaction temperature of 120-160 DEG C, and cooling to 70-80 DEG C; and calculating tea saponin according to the weight ratio of the tea saponin to the attapulgite of (1-5): 100, adding the tea saponin into the reaction solution, dispersing, cooling to obtain a precipitate mixture of the tea saponin and the attapulgite, and drying to obtain the modified attapulgite powder. The algae removal modified attapulgite powder which is efficient in coagulation and free of pollution is used, algae can be killed, growth and propagation of the algae can be inhibited while the algae are removed, the algae removal capacity is synergistically improved, the function of integrating coagulation algae removal and algae growth inhibition is achieved, raw materials are easy to obtain and low in price, and good social benefits and economic benefits are achieved.

Description

technical field [0001] The invention relates to the field of environment-friendly preparations, in particular to a modified attapulgite powder used for coagulation and algae removal. Background technique [0002] In recent years, due to eutrophication and other reasons, large-scale "water blooms" have occurred in water areas, that is, a large number of algae appear in the water. These algae have low density and strong reproductive ability, consume a lot of oxygen in the water and produce harmful toxins, making the water quality polluted Threat to life and health, and cause serious losses to the aquatic economy. [0003] At present, the algae removal technologies used on the market mainly include physical algae removal methods such as mechanical salvage, filtration, and ultrasonic algae killing methods, and chemical algae removal methods such as pre-oxygenation methods and copper-based chemical methods. Among these algae removal methods, either the cost is too high to be pop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F1/50
CPCC02F1/50C02F1/5236
Inventor 董良飞周美成马荣
Owner 南京山禾生态环境有限公司
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