Preparation method and applications of modified water hyacinth algae flocculant
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A flocculant, modified water technology, applied in chemical instruments and methods, flocculation/sedimentation water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of limited environmental secondary pollution and so on
Active Publication Date: 2017-09-15
CHINA THREE GORGES UNIV
View PDF5 Cites 1 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, these methods have more or less limitat
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0020] 1. Preparation of flocculant:
[0021] A preparation method of modified water hyacinth algae flocculant, comprising the following steps:
[0022] (1) Raw material preparation: modifier is chitosan; chitosan: water hyacinth = 0.2mg: 1mg;
[0023] (2) Raw material processing: Remove the roots and leaves of 15 water hyacinths collected from the pond, leaving only the petiole, and cut the petiole into a length of 4 cm, put it in an oven at 80°C for 10 hours, and dry it. water, then ground into powder, and crossed a 250 mesh sieve to obtain the water hyacinth powder material;
[0024] Chitosan treatment: Weigh 100mg of chitosan dissolved in 100ml of 1% (wt%) hydrochloric acid and dissolve to form 1mg / mL chitosan hydrochloric acid solution water, heat and stir at 60°C for 1h;
[0025] (3) Preparation of modified water hyacinth algae flocculant: according to the ratio of step (1), take 50g of water hyacinth powder into a 1000ml beaker, add 500ml of chitosan solution, stir wi...
Embodiment 2
[0029] 1. Preparation of flocculant:
[0030] A preparation method of modified water hyacinth algae flocculant, comprising the following steps:
[0031] (1) Raw material preparation: modifier is chitosan; chitosan: water hyacinth = 0.2mg: 1mg;
[0032] (2) Raw material processing: Remove the roots and leaves of 15 water hyacinths collected from the pond, leaving only the petiole, and cut the petiole into a length of 4 cm, put it in an oven at 80°C for 10 hours, and dry it. water, then ground into powder, and crossed a 250 mesh sieve to obtain the water hyacinth powder material;
[0033] Chitosan treatment: Weigh 100mg of chitosan dissolved in 100ml of 1% (wt%) hydrochloric acid and dissolve to form 1mg / mL chitosan hydrochloric acid solution water, heat and stir at 60°C for 1h;
[0034] (3) Preparation of modified water hyacinth algae flocculant: according to the ratio of step (1), take 50g of water hyacinth powder into a 1000ml beaker, add 500ml of chitosan solution, stir wi...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention relates to a preparation method and applications of a modified water hyacinth algae flocculant, wherein chitosan is used as a modifier, and chitosan and water hyacinth are subjected to mixing treatment to obtain the algae flocculant. The preparation steps comprise: placing fresh root-leaf-removed water hyacinth in an oven, drying and removing water, crushing, screening, mixing the obtained water hyacinth and a chitosan solution, stirring, filtering, drying, and grinding to obtain the modified water hyacinth algae flocculant. According to the present invention, the modified water hyacinth algae flocculant for removing Microcystis during the Cyanobacteria blooms, the preparation method and the applications are provided, the modified water hyacinth algae flocculant can rapidly and effectively remove the Microcystis in the Cyanobacteria blooms, can achieve the emergency treatment on the Cyanobacteria blooms, has advantages of good removing effect, rapid effect and simple operation, and provides the important theoretical and practical significance for the rapid treatment of the Cyanobacteria blooms; and by modifying the water hyacinth around the Cyanobacteria blooms, the long-distance flocculant transportation cost is saved, and the economic benefits are great.
Description
technical field [0001] The invention relates to a preparation method of a modified water hyacinth algae flocculant; the invention also relates to the application of the flocculant in controlling algal blooms. Background technique [0002] Eutrophication is a water pollution phenomenon caused by excessive nitrogen, phosphorus and other nutrients. Excessive nitrogen, phosphorus and other nutrients enter natural water bodies with human activities, resulting in eutrophication of water bodies. Eutrophication can lead to explosive growth of certain algae, causing algal blooms or red tides. In recent years, my country's Chaohu Lake, Dianchi Lake, Taihu Lake and other water bodies have frequently experienced algal blooms. Water blooms in natural freshwater bodies include cyanobacteria blooms, green algae blooms and diatom blooms, etc. Among them, cyanobacteria blooms are the most frequent blooms, and the dominant species is Microcystis. Algae blooms will seriously affect the norma...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more