阅读说明：本技术 用于水产养殖的氧化剂及其制备方法 (Oxidant for aquaculture and preparation method thereof ) 是由 牛犇 牛建 于 2019-11-15 设计创作，主要内容包括：本发明公开了一种用于水产养殖的氧化剂及其制备方法,所述氧化剂由亚氯酸钠、无水硫酸钠、氯化钠、碳酸钠、碳酸氢钠、过碳酸钠、无水柠檬酸以及表面活性剂按比例混合组成。本发明提供了本发明提供了一种用于水产养殖的氧化剂及其制备方法,将缓释型亚氯酸钠片投入养殖池底,对底部进行氧化消毒,从而直接解决老塘黑臭底泥导致的水体亚硝酸盐和氨氮偏高等情况。(The invention discloses an oxidant for aquaculture and a preparation method thereof. The invention provides an oxidant for aquaculture and a preparation method thereof, wherein a slow-release sodium chlorite tablet is put into the bottom of a culture pond, and the bottom is oxidized and disinfected, so that the problems of high nitrite and ammonia nitrogen in a water body and the like caused by black and odorous bottom mud of an old pond are directly solved.)

1. An oxidant for use in aquaculture, characterized by: the oxidant comprises the following components in percentage by mass:

sodium chlorite 5% ~ 50%;

anhydrous sodium sulfate 30% ~ 95%;

sodium chloride 0% ~ 15%;

sodium carbonate 0% ~ 5%;

sodium bicarbonate 0% ~ 5%;

sodium percarbonate 0% ~ 5%;

anhydrous citric acid 0 ~ 10%;

surfactant 1 ~ 5 ‰.

2. An oxidant for use in aquaculture according to claim 1, characterized in that: the surfactant is any one or combination of magnesium stearate, talcum powder or polyethylene glycol.

3. The method of producing an oxidant for aquaculture according to claim 1 or 2, characterized in that: the method comprises the following steps:

sieving

Sieving sodium chlorite, anhydrous sodium sulfate, sodium chloride, sodium carbonate, sodium bicarbonate, sodium percarbonate and anhydrous citric acid with a 3 ~ 4 mm filter screen respectively;

(ii) mixing

Pouring the sieved materials into a mixer according to a proportion, and stirring for 8 ~ 10 minutes at a stirring speed of 60 ~ 80 revolutions per minute;

(iii) surfactant addition

Adding a certain amount of surfactant into the mixed material obtained in the step (ii), and continuing stirring for 8 ~ 10 minutes;

(iv) Molding

And (3) putting the material stirred in the step (iii) into a feeder of a tablet press, and performing extrusion forming to obtain the slow-release oxidant for aquaculture.

4. The method of claim 3, wherein the oxidant is selected from the group consisting of: the mixer is a trough mixer or a cone mixer.

5. The method of claim 3, wherein the oxidant is selected from the group consisting of: the tablet press is a rotary or hydraulic tablet press.

Technical Field

The invention belongs to the field of aquaculture, and particularly relates to an oxidant for aquaculture and a preparation method thereof.

Background

Sodium chlorite is a high-efficiency oxidant bleaching agent, and is mainly used for cotton spinning, flax, paper pulp bleaching, food disinfection, water treatment, sterilization and algae removal and fish drug production. The theoretical available chlorine content of sodium chlorite is 157%, and the available chlorine content of industrial products with purity of more than 80% also can be 130%, and is equivalent to 7 times of bleaching powder. Sodium chlorite is mainly used for bleaching paper pulp, paper and various fibers such as flax, hemerocallis, cotton, reed and viscose fibers, and has the characteristic of moderate oxidation-reduction potential, so when it is used for bleaching synthetic fibers (such as washing), natural fibers (such as plant fibers including cotton, hemp, mulberry and paper pulp) and artificial fibers (such as rayon) it can remove pigment impurities and does not damage the fibers, so that it can obtain high-quality bleached finished products, which are incomparable with hydrogen peroxide and other chlorine-containing bleaching agents. With the increasing awareness of people, chlorine dioxide, which is a fourth-generation disinfectant, is further applied in the aspects of medical sanitation, food processing, aquaculture, drinking water disinfection, industrial water treatment, flower drying process and the like, and the sodium chlorite drinking water treatment has deodorization effect besides sterilization, algae removal and disinfection. The water contaminated by phenol or phenol compounds can be treated to remove phenol and phenol compounds.

In the aquaculture process, the aquatic products grow rapidly due to the long-term feed input, a large amount of uneaten feed and a large amount of excrement are deposited at the bottom of the pond, so that the bottom is anoxic and generates heat, the bottom mud is black and smelly, and a large amount of harmful substances such as sulfide, cyanide and the like are generated.

Disclosure of Invention

The invention aims to overcome the defects that bottom mud of a culture pond is black and smelly and generates a large amount of harmful substances such as sulfide, cyanide and the like in the prior art, and aims to provide an oxidation water purification disinfectant for aquaculture and a preparation method thereof.

The invention is realized by the following technical scheme:

an oxidant for aquaculture, which comprises the following components in percentage by mass:

sodium chlorite 5% ~ 50%;

anhydrous sodium sulfate 30% ~ 95%;

sodium chloride 0% ~ 15%;

sodium carbonate 0% ~ 5%;

sodium bicarbonate 0% ~ 5%;

sodium percarbonate 0% ~ 5%;

anhydrous citric acid 0 ~ 10%;

surfactant 1 ~ 5 ‰.

In the above technical scheme, the surfactant is any one or a combination of magnesium stearate, talc powder or polyethylene glycol.

A method of producing an oxidant for use in aquaculture, comprising the steps of:

sieving

Sieving sodium chlorite, anhydrous sodium sulfate, sodium chloride, sodium carbonate, sodium bicarbonate, sodium percarbonate and anhydrous citric acid with a 3 ~ 4 mm filter screen respectively;

(ii) mixing

Pouring the sieved materials into a mixer according to a proportion, and stirring for 8 ~ 10 minutes at a stirring speed of 60 ~ 80 revolutions per minute;

(iii) surfactant addition

Adding a certain amount of surfactant into the mixed materials obtained in the step (iii), and continuing stirring for 8 ~ 10 minutes;

(iv) Molding

And (iv) putting the material stirred in the step (iv) into a blanking device of a tablet press, and performing extrusion forming to obtain the slow-release oxidant for aquaculture.

In the above technical solution, the mixer is a trough mixer or a cone mixer.

In the above technical solution, the tablet press is a rotary or hydraulic tablet press.

The invention has the beneficial effects that:

the invention provides an oxidant for aquaculture and a preparation method thereof, wherein a slow-release sodium chlorite tablet is put into the bottom of a culture pond, and the bottom is oxidized and disinfected, so that the problems of high nitrite and ammonia nitrogen in a water body and the like caused by black and odorous bottom mud of an old pond are directly solved.

Detailed Description

In order to make the technical scheme of the invention better understood by those skilled in the art, the technical scheme of the oxidant for aquaculture and the preparation method thereof of the invention are further described by the specific embodiments.

An oxidant for aquaculture, which comprises the following components in percentage by mass:

sodium chlorite 5% ~ 50%;

anhydrous sodium sulfate 30% ~ 95%;

sodium chloride 0% ~ 15%;

sodium carbonate 0% ~ 5%;

sodium bicarbonate 0% ~ 5%;

sodium percarbonate 0% ~ 5%;

anhydrous citric acid 0 ~ 10%;

surfactant 1 ~ 5 ‰.

According to different requirements, the adding proportion of sodium carbonate, sodium bicarbonate, sodium percarbonate and anhydrous citric acid can be increased or decreased, and the addition is filled by anhydrous sodium sulfate.

A method of producing an oxidant for use in aquaculture, comprising the steps of:

sieving

Sieving sodium chlorite, anhydrous sodium sulfate, sodium chloride, sodium carbonate, sodium bicarbonate, sodium percarbonate and anhydrous citric acid with a 3 ~ 4 mm filter screen respectively;

(ii) mixing

Pouring the sieved materials into a mixer according to a proportion, and stirring for 8 ~ 10 minutes at a stirring speed of 60 ~ 80 revolutions per minute;

the mixer is a trough mixer or a cone mixer.

(iii) surfactant addition

Adding a certain amount of surfactant into the mixed materials obtained in the step (iii), and continuing stirring for 8 ~ 10 minutes;

(iv) Molding

And (iv) putting the material stirred in the step (iv) into a blanking device of a tablet press, and performing extrusion forming to obtain the slow-release oxidant for aquaculture.

The tablet presses are rotary or hydraulic tablet presses, for example ZP-33, ZP-35.