Method for treating eutrophic seawater by compounding bacteria and chitosan

A technology of eutrophication and composite treatment, applied in chemical instruments and methods, seawater treatment, water/sewage treatment, etc., can solve the problems of polyelectrolyte charge density increase, water quality eutrophication treatment, eutrophication seawater treatment efficiency is low, etc. problem, to achieve the effect of suitable promotion and reduction of water pollution

Inactive Publication Date: 2020-06-23
SHENZHEN INST OF GUANGDONG OCEAN UNIV +2
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chitosan is the product of chitin after deacetylation reaction. The degree of deacetylation (D.D) determines the content of amine groups (NH2) on the macromolecular chain, and the increase of D.D will make chitosan In the dilute acid solution, the charged groups increase and the charge density of the polyelectrolyte increases, which will inevitably lead to changes in its st

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
  • Method for treating eutrophic seawater by compounding bacteria and chitosan
  • Method for treating eutrophic seawater by compounding bacteria and chitosan

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for compounding eutrophic seawater with fungus chitosan, comprising the following steps:

[0022] S1. Inoculate Bacillus subtilis, Streptomyces jingyang, Saccharomyces cerevisiae, Lactobacillus bulgaricus and Rhodopseudomonas palustris into the culture medium according to a certain ratio to carry out compound bacteria culture, and regularly detect the activity of the compound bacteria, Select compound colonies with strong activity;

[0023] S2. Wash the shrimp shells used for preparing chitosan with clear water, and dry them, then soak the raw materials in dilute hydrochloric acid solution for 1 hour, then filter and wash with water until neutral;

[0024] S3. Boil the shrimp shells treated in S2 in sodium hydroxide solution for 1 hour, continue to filter, wash until neutral, and dry them;

[0025] S4, using potassium permanganate and sodium bisulfite to carry out chlorination and decolorization treatment on the dried shrimp shells;

[0026] S5. The decoloriz...

Embodiment 2

[0030] A method for compounding eutrophic seawater with fungus chitosan, comprising the following steps:

[0031] S1. Inoculate Bacillus subtilis, Streptomyces jingyang, Saccharomyces cerevisiae, Lactobacillus bulgaricus and Rhodopseudomonas palustris into the culture medium according to a certain ratio to carry out compound bacteria culture, and regularly detect the activity of the compound bacteria, Select compound colonies with strong activity;

[0032] S2. Wash the shrimp shells used for preparing chitosan with clear water, and dry them, then soak the raw materials in dilute hydrochloric acid solution for 2 hours, then filter and wash with water until neutral;

[0033] S3. Boil the shrimp shells treated in S2 in sodium hydroxide solution for 2 hours, continue to filter and wash until neutral, and dry them;

[0034] S4, using potassium permanganate and sodium bisulfite to carry out chlorination and decolorization treatment on the dried shrimp shells;

[0035] S5. The deco...

Embodiment 3

[0039] A method for compounding eutrophic seawater with fungus chitosan, comprising the following steps:

[0040] S1. Inoculate Bacillus subtilis, Streptomyces jingyang, Saccharomyces cerevisiae, Lactobacillus bulgaricus and Rhodopseudomonas palustris into the culture medium according to a certain ratio to carry out compound bacteria culture, and regularly detect the activity of the compound bacteria, Select compound colonies with strong activity;

[0041] S2. Wash the shrimp shells used for preparing chitosan with clear water, and dry them, then soak the raw materials in dilute hydrochloric acid solution for 3 hours, then filter and wash with water until neutral;

[0042] S3. Boil the shrimp shells treated in S2 in sodium hydroxide solution for 3 hours, continue to filter and wash until neutral, and dry them;

[0043] S4, using potassium permanganate and sodium bisulfite to carry out chlorination and decolorization treatment on the dried shrimp shells;

[0044] S5. The deco...

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

No PUM Login to view more

Abstract

The invention discloses a method for treating eutrophic seawater by compounding bacteria and chitosan. The preparation method comprises the following steps: inoculating bacillus subtilis, streptomycesjingyangensis, saccharomyces cerevisiae, lactobacillus bulgaricus and rhodopseudomonas palustris into a culture medium according to a certain proportion to carry out compound bacterium culture, detecting the activity of compound bacteria regularly, and selecting a compound bacterial colony with relatively high activity; cleaning shrimp shells for preparing chitosan with clear water, drying, soaking the raw materials in a diluted hydrochloric acid solution for 1-3 hours, filtering, and washing with water until the raw materials are neutral; putting the treated shrimp shells into a sodium hydroxide solution, boiling for 1-3h, continuously filtering, and washing with water to be neutral. According to the present invention, the water quality of the seawater can be purified to a certain degreethrough the chitosan, and the eutrophic seawater can be subjected to water quality balance adjustment through the mixing of the composite strain and the chitosan so as to rapidly decompose and degrade the rich organic matters and the rich mineral elements in the water body, such that the water body pollution is reduced, and the method is suitable for promotion.

Description

technical field [0001] The invention relates to the technical field of seawater treatment, in particular to a method for compounding eutrophic seawater with fungus-chitosan. Background technique [0002] Eutrophication refers to the large amount of nutrients such as nitrogen and phosphorus required by organisms entering slow-flowing water bodies such as lakes, estuaries, and bays, causing algae and other plankton to multiply rapidly, the dissolved oxygen in the water body decreases, and fish and other organisms die in large numbers. Phenomenon. A large number of dead aquatic organisms are deposited at the bottom of the lake, decomposed by microorganisms, and consume a large amount of dissolved oxygen, causing a sharp decrease in the dissolved oxygen content of the water body, deteriorating the water quality, affecting the survival of fish, and greatly accelerating the eutrophication process of the water body. When eutrophication occurs in the water body, due to the large nu...

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
no application Login to view more
IPC IPC(8): C02F3/34C02F1/28C02F103/08C02F101/16C02F101/10
CPCC02F1/286C02F3/34C02F2101/105C02F2101/16C02F2103/08
Inventor 张锐孙美榕赵志辉王润莲
Owner SHENZHEN INST OF GUANGDONG OCEAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap