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A preparation method of flocculant for algae removal in small landscape water bodies with cyanobacteria as dominant species

A dominant species, flocculant technology, applied in the direction of solid solvent extraction, flocculation/sedimentation water/sewage treatment, etc., can solve the cumbersome production process of flocculants and other problems, achieve good flocculation effect, clear water, and strong practicability

Inactive Publication Date: 2017-11-14
HENAN UNIV OF URBAN CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production process of the flocculant is cumbersome, and pressure vessels such as reaction kettles are also required

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The method for extracting natural flocculating active ingredients from pomegranate skins to prepare flocculants and using them for removing algae in water in the present invention includes the following steps:

[0031] (1) Wash the fresh pomegranate skin, dry it naturally or dry, and crush it to a particle size of 20-80 mesh;

[0032] Wash the pomegranate skin with boiling-cooled tap water or ultrapure water, dry it naturally or dry it at 40-60°C for 2 to 4 days to obtain a dried pomegranate skin material;

[0033] (2) Mix the crushed pomegranate skin with ultrapure water or distilled water, boiling and cooled tap water according to the ratio of mass: volume=1:33.33~1:2.78, preferably 1:11.11, and stir well and leave it for 0.5~48 hours , Preferably 24 hours, to promote the full dissolution of the active ingredients contained in the pomegranate peel;

[0034] (3) Use qualitative filter paper to filter the particulate residues in the extract to directly obtain the water extract ...

Embodiment 2

[0038] This embodiment discloses a method for extracting natural flocculating active ingredients from pomegranate peel, including the following steps:

[0039] (1) Mix the pretreated pomegranate skin with ultrapure water, distilled water or boiling and cooled tap water in a mass:volume ratio of 1:33.33;

[0040] (2) Use qualitative filter paper to filter the particulate residues in the extract to obtain the water extract of pomegranate peel.

Embodiment 3

[0042] The method for extracting natural flocculating active ingredients from pomegranate peel in this example is different from Example 2: the pretreated pomegranate peel and ultrapure water, distilled water or boiling-cooled tap water are in a mass:volume ratio of 1:28 The ratio of mixing.

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PUM

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Abstract

The invention relates to a method for extracting natural active ingredients from pomegranate peel and preparing a flocculant. A method for extracting natural flocculation active ingredients from pomegranate peels, comprising the following steps: (1) mixing pretreated pomegranate peels with ultrapure water, distilled water or boiled and cooled tap water according to the mass:volume ratio of 1:33.33-1 : 2.78 ratio mixing; (2) filter the particulate residue in the extract to obtain the water extract of pomegranate peel. A method for preparing a flocculant by extracting natural flocculation active ingredients from pomegranate peels, comprising the following steps: (1) combining pretreated pomegranate peels with ultrapure water, distilled water or boiled and cooled tap water according to the mass:volume ratio of 1: 33.33~1:2.78 mixing ratio; (2) Filter out the particulate residue in the extract to obtain the water extract of pomegranate peel; (3) Take 0.5-10mL of the water extract of pomegranate peel and cool it with ultrapure water, distilled water or boiling dilute with tap water to 30mL to obtain the final flocculant.

Description

Technical field [0001] The invention belongs to the technical field of environmental protection, and particularly relates to a method for preparing a flocculant by extracting natural active ingredients from pomegranate peel, which can be used to remove algae in water. Background technique [0002] With the development of industry, the eutrophication status of water bodies in my country has become increasingly serious. According to surveys, more than 66% of lakes and reservoirs are at eutrophication levels, of which 22% are heavy eutrophication and super eutrophication, which leads to frequent occurrence of algal blooms. . In terms of water bloom treatment, it is mainly divided into three categories: physical, chemical and biological methods according to the control principle. Physical methods such as mechanical algae removal, ultraviolet ray killing, shading to suppress algae, etc., although effective quickly, but time-consuming, costly, and difficult to operate, so it is not eas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D11/02C02F1/54
Inventor 王红强朱慧杰成水平李朝辉邓启湘郭一飞
Owner HENAN UNIV OF URBAN CONSTR
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