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A method for preparing natural composite flocculant with traditional Chinese medicine dregs

A technology of composite flocculant and traditional Chinese medicine dregs, which is applied in chemical instruments and methods, flocculation/sedimentation water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of long heating time, short storage time and flocculation capacity limitation problems such as increased accessibility of reaction, simple production equipment, and good flocculation effect

Active Publication Date: 2019-02-19
海南众享科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantages of this method are: ① Heating hydration is used in the production process, the heating temperature is high, the heating time is long, it is easy to coke, and it is not convenient for continuous production; Blending, without structural modification of polysaccharides, so that its flocculation ability is limited to a certain extent; ③The cost of raw material chitosan is relatively high, and the cost of using this flocculant for water treatment is still relatively high; ④The composite flocculant produced It is colloidal, not easy to transport, and has a short storage time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for preparing a natural composite flocculant with traditional Chinese medicine dregs, the specific method steps are as follows:

[0023] (1) Explosion treatment

[0024] Using traditional Chinese medicine dregs as raw materials, a stainless steel high-pressure reactor is first connected with a high-pressure steam generator to form a self-made steam explosion device. Then, according to the ratio of the mass (g) of traditional Chinese medicine dregs: the volume (mL) of the stainless steel autoclave is 1:10, add the dregs of traditional Chinese medicine into the stainless steel autoclave, and then feed high-pressure steam until the pressure inside the autoclave is 1:10. When it reaches 3.0MPa, keep it for 30 minutes and then open the medium-pressure butterfly valve to carry out gas explosion treatment and collect gas explosion Chinese medicine residues. For the collected explosive traditional Chinese medicine dregs, it is used for the next step of processing. Am...

Embodiment 2

[0032] A method for preparing a natural composite flocculant with traditional Chinese medicine dregs, the specific method steps are as follows:

[0033] (1) Explosion treatment

[0034] Using traditional Chinese medicine dregs as raw materials, a stainless steel high-pressure reactor is first connected with a high-pressure steam generator to form a self-made steam explosion device. Then, according to the ratio of the mass (g) of traditional Chinese medicine dregs: the volume (mL) of the stainless steel autoclave is 1:20, add the dregs of traditional Chinese medicine into the stainless steel autoclave, and then feed high-pressure steam until the pressure in the autoclave is When it reaches 4.5MPa, keep it for 45 minutes and then open the medium-pressure butterfly valve to carry out gas explosion treatment and collect gas explosion Chinese medicine residues. For the collected explosive traditional Chinese medicine dregs, it is used for the next step of processing. Among them, ...

Embodiment 3

[0042] A method for preparing a natural composite flocculant with traditional Chinese medicine dregs, the specific method steps are as follows:

[0043] (1) Explosion treatment

[0044] Using traditional Chinese medicine dregs as raw materials, a stainless steel high-pressure reactor is first connected with a high-pressure steam generator to form a self-made steam explosion device. Then according to the ratio of the mass (g) of traditional Chinese medicine dregs: the volume (mL) of the stainless steel autoclave is 1:30, put the dregs of Chinese medicine into the stainless steel autoclave, and then feed high-pressure steam until the pressure inside the autoclave is 1:30. When it reaches 6.0MPa, keep it for 60 minutes and then open the medium-pressure butterfly valve to carry out gas explosion treatment and collect gas explosion Chinese medicine residues. For the collected explosive traditional Chinese medicine dregs, it is used for the next step of processing. Among them, the...

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PUM

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Abstract

The invention relates to a method for preparing natural composite flocculant with traditional Chinese medicine dregs, and belongs to the technical field of preparation of the natural composite flocculant. The method provided by the invention adopts the traditional Chinese medicine dregs as raw materials, and obtains the products through gas explosion treatment, leaching and separation, cationization, washing and drying, and other production steps. The method provided by the invention has the advantages of simple production process, high stability, high comprehensive utilization rate of resources, easy availability and low cost of raw materials, no harmful substance emission, and the like; the composite flocculant prepared according to the method provided by the invention has the characteristics of stable performance, high safety and effectiveness, and the like; the product produced by the method provided by the invention can be widely used in chemical industry and other water treatment industries.

Description

technical field [0001] The invention belongs to the technical field of preparing natural composite flocculants, in particular to a method for preparing natural composite flocculants with traditional Chinese medicine dregs. Background technique [0002] In water treatment technology, flocculation and sedimentation method is a widely used and indispensable technology, and flocculant is the key to the effect of flocculation and sedimentation treatment. Natural organic polymer flocculants are listed as environmentally friendly water treatment agents due to their wide source of raw materials, low price, non-toxicity, easy biodegradation, and a virtuous cycle in nature. The dregs of traditional Chinese medicine contain a lot of starch, cellulose and protein. The dregs of the dregs are large and have not been effectively utilized and developed, resulting in a lot of waste of resources. If they can be integrated and utilized, it will not only turn waste into wealth, but also save T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/52
CPCC02F1/5263
Inventor 张杰吴姗姗罗谦王星敏王崇均
Owner 海南众享科技有限公司