Method for reducing nitrite in aquiculture water bodies
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 nitrite and aquaculture technology, applied in the direction of chemical instruments and methods, water/sewage multi-stage treatment, neutralized water/sewage treatment, etc., to solve the problem of denitrification and avoid poor results
Inactive Publication Date: 2016-05-04
TIANJIN RONG LEE BIOTECH DEV CO LTD
View PDF5 Cites 5 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
[0005] Aiming at the deficiencies of the prior art, the present invention provides a simple and convenient method for reducing nitrite in aquaculture water that effectively solves the problem of denitrification of water in the later stage of aquaculture
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
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0016] A method for reducing nitrite in aquaculture water of the present invention comprises the following steps:
[0017] (1) Use 2g / m 3 Citric acid is used to treat the aquaculture water body, and the pH value of the aquaculture water body is adjusted to 7.5;
[0018] (2) After treatment in step (1), use 0.6g / m after an interval of 2 hours 3 Treatment of aquaculture water with potassium hydrogen persulfate;
[0019] (3) After treatment in step (2), use 0.5g / m after an interval of 3-5h 3 Sodium hypophosphite treats aquaculture water.
[0020] After the above steps, the denitrification efficiency reaches 95%.
Embodiment 2
[0022] A method for reducing nitrite in aquaculture water of the present invention comprises the following steps:
[0023] (1) Use 2g / m 3 Sulfamic acid is used to treat the aquaculture water body, and the pH value of the aquaculture water body is adjusted to 7.5;
[0024] (2) After treatment in step (1), use 0.6g / m after an interval of 2 hours 3 Potassium ferrate treatment of aquaculture water;
[0025] (3) After treatment in step (2), use 0.5g / m after an interval of 3-5h 3 Sodium hypophosphite treats aquaculture water.
[0026] After the above steps, the denitrification efficiency reaches 94%.
Embodiment 3
[0028] A method for reducing nitrite in aquaculture water of the present invention comprises the following steps:
[0029] (1) Use 1g / m 3 Citric acid is used to treat the aquaculture water body, and the pH value of the aquaculture water body is adjusted to 8;
[0030] (2) After treatment in step (1), use 0.5g / m after an interval of 2h 3 Potassium ferrate treatment of aquaculture water;
[0031] (3) After treatment in step (2), use 0.4g / m after an interval of 3-5h 3 Sodium hypophosphite treats aquaculture water.
[0032] After the above steps, the denitrification efficiency reaches 91%.
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 belongs to the technical field of aquiculture, and particularly relates to a method for reducing nitrite in aquiculture water bodies, which includes the following steps: 0.1g/m<3> to 2g/m<3> of citric acid or 0.1g/m<3> to 2g/m<3> of sulfamic acid is used for treating an aquiculture water body, so that the pH value of the aquiculture water body is regulated to 7.5 to 8.0; after an interval of two hours, 0.1g/m<3> to 1g/m<3> of potassium peroxymonosulfate or 0.1g/m<3> to 1g/m<3> of potassium ferrate is used for treating the aquiculture water body; after an interval of three to five hours, 0.1g/m<3> to 1g/m<3> of sodium hypophosphite is used for treating the aquiculture water body. The main components used by the method are chemical substances, the conventional reduction-oxidation reaction is utilized to reduce the content of nitrite, consequently, the situation of poor using effect in oxygen-deficient water bodies which is common at the middle and later stages of aquiculture is prevented, and the denitrification problem of water bodies at the middle and later stages of aquiculture is effectively solved.
Description
technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a method for reducing nitrite in aquaculture water. Background technique [0002] In normal aquaculture water, organic matter such as residual bait and feces of aquatic animals is converted into harmful nitrite by nitrosifying bacteria in an aerobic environment, and then further converted into non-toxic nitrite by nitrosifying bacteria under aerobic conditions. Harmful nitrate, the converted nitrate is absorbed and utilized by algae in the water body, thus completing a benign material metabolism cycle. [0003] But in recent years, with the continuous increase of breeding density, especially in the middle and late stages of breeding, the content of organic matter in the water has seriously exceeded the standard, exceeding the carrying capacity of the water body's own metabolism. Nitrosifying bacteria and nitrifying bacteria gradually consume dissolved oxygen in t...
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