Unlock instant, AI-driven research and patent intelligence for your innovation.

A harmless treatment method for enhanced flocculation of aquaculture tail water

A harmless treatment and aquaculture technology, applied in the direction of water/sewage treatment, water/sewage multi-stage treatment, biological water/sewage treatment, etc., can solve the problem that the treatment effect needs to be improved, the effect is slow, and the ion cannot be removed. Molecular Hazardous Substances, etc.

Active Publication Date: 2022-04-22
CHONGQING TECH & BUSINESS UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention intends to provide a harmless treatment method for enhanced flocculation of aquaculture tail water, so as to solve the problems that the existing tail water treatment methods have slow effect, the effect of treatment needs to be improved, and small molecular harmful substances such as ions cannot be removed.

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
  • A harmless treatment method for enhanced flocculation of aquaculture tail water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A harmless treatment method for enhanced flocculation of aquaculture tail water, comprising the following steps:

[0039] (1) Preliminary filtration of aquaculture tail water to remove large particles of impurities;

[0040] (2) Use 35g / L inorganic flocculant to carry out preliminary flocculation of the tail water after preliminary filtration; the inorganic flocculant can be selected from one of polyaluminum ferric chloride, ferric chloride, polyacrylamide, polyaluminum chloride or Various, in this embodiment, the inorganic flocculant is polyacrylamide.

[0041] (3) Use 15g / L microbial flocculant to strengthen the flocculation of the tail water after preliminary flocculation; the microbial flocculant in this embodiment is prepared by the following steps:

[0042] a. Isolate dominant indigenous microorganisms with ammonification, assimilation or nitrification from aquaculture tail water;

[0043] b. Preparation of seed solution: Pseudomonas, Bacillus, and dominant indi...

Embodiment 2

[0055] A harmless treatment method for enhanced flocculation of aquaculture tail water, comprising the following steps:

[0056] (1) Preliminary filtration of aquaculture tail water to remove large particles of impurities;

[0057] (2) Use 32g / L inorganic flocculant to carry out preliminary flocculation of the tail water after preliminary filtration; the inorganic flocculant can be selected from one of polyaluminum ferric chloride, ferric chloride, polyacrylamide, polyaluminum chloride or Various, in this embodiment, the inorganic flocculant is polyaluminum ferric chloride.

[0058] (3) Use 18g / L microbial flocculant to strengthen the flocculation of the tail water after preliminary flocculation; the microbial flocculant in this embodiment is prepared by the following steps:

[0059] a. Isolate dominant indigenous microorganisms with ammonification, assimilation or nitrification from aquaculture tail water;

[0060] b. Preparation of seed solution: Pseudomonas, Bacillus, and...

Embodiment 3

[0072] The difference between the third embodiment and the first embodiment is that the biofloc technology is used for aquaculture in the aquaculture process, and 0.2-0.38 kg of biofloc is added per cubic meter of aquaculture water during the aquaculture process. The steps of treating the aquaculture tail water after breeding are the same as those in Example 1.

[0073] The preparation of the biofloc used in this embodiment comprises the following steps:

[0074] (1) Prepare the following raw materials in parts by mass: 8 parts of peptone, 10 parts of glucose, 15 parts of activated carbon, and 6 parts of water;

[0075] (2) pulverizing activated carbon, controlling the particle diameter of activated carbon at 0.4-0.8 mm; mixing peptone, glucose, activated carbon and water to obtain a mixture;

[0076] (3) The mixture is mixed with aquaculture tail water to obtain a mixed unit, and the mass ratio of the mixture to the aquaculture tail water is 1:1.2; Bacillus licheniformis, En...

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

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of sewage treatment, and specifically relates to a harmless treatment method for enhanced flocculation of aquaculture tail water, comprising the following steps: (1) performing preliminary filtration on aquaculture tail water to remove large particles of impurities; (2) using 28‑38g / L inorganic flocculant is used for preliminary flocculation of the tail water after preliminary filtration; (3) 10‑22g / L microbial flocculant is used for flocculation strengthening of the tail water after preliminary flocculation; (4) Biosorbent treatment The tail water after flocculation intensification can adsorb the metal ions remaining in the water and produced by the inorganic flocculation process. In the scheme, microbial flocculant is used to strengthen flocculation after the initial flocculation. The combined application of microbial flocculant and inorganic flocculation technology can truly strengthen the flocculation process and reduce the water retention rate of non-flocculated matter. After the flocculation is completed, biosorption is carried out. The biosorbent is used in the water flocculation process to make up for the defect that the metal ion cannot be removed in the composite process, so that the flocculation process is harmless.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a harmless treatment method for enhanced flocculation of aquaculture tail water. Background technique [0002] With the development of economy and society, people's demand for the quantity and quality of aquatic products continues to increase. In recent years, aquaculture has developed rapidly towards high density, intensification and factoryization. Due to the increase in the scale of farming, the increase in the amount of bait and antibiotics used, and the increase in the discharge of feces, the water body has been seriously polluted, resulting in serious consequences such as water hypoxia and the killing of beneficial microorganisms. Aquaculture wastewater is directly discharged without effective measures. Phosphorus, ammonia nitrogen, nitrite and other pollutants in it will aggravate the eutrophication of rivers, lakes and oceans, cause water quality to d...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F103/20
CPCC02F9/00C02F1/001C02F1/5236C02F3/341C02F2301/08C02F2305/06C02F2103/20
Inventor 王建辉万柯佚申渝陈佳齐高相
Owner CHONGQING TECH & BUSINESS UNIV