阅读说明：本技术 用于水产养殖的增氧剂及其制备方法 (Oxygen increasing agent 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增氧剂及其制备方法,增氧剂由过筛后的主料、无水硫酸钠、氯化钠先一步混合,再加入表面活性剂进一步混合,再经压片处理获得。本发明提供了一种用于水产养殖的增氧剂及其制备方法,通过一种压片工艺,解决增氧产品溶解速度快,泼洒不均匀等情况,实现池塘底部增氧,向表层扩散,同时可实现底部淤泥等有害物质的氧化,从根源解决水体问题。可根据控制物料投入比调整活性氧含量。(The invention discloses an oxygen increasing agent for aquaculture and a preparation method thereof. The invention provides an oxygen increasing agent for aquaculture and a preparation method thereof, and solves the problems of high dissolving speed, uneven splashing and the like of an oxygen increasing product through a tabletting process, realizes oxygen increasing at the bottom of a pond and diffusion to the surface layer, can realize oxidation of harmful substances such as sludge at the bottom and the like, and radically solves the problem of water. The active oxygen content can be adjusted according to the control of the material input ratio.)

1. An oxygen increasing agent for aquaculture, which is characterized in that: the oxygen increasing agent comprises the following components in percentage by mass:

50% of main material ~ 100% of 100%;

anhydrous sodium sulfate 0% ~ 25%;

sodium chloride 0% ~ 25%;

1 per mill ~ 5 per mill of surfactant;

the main material is any one of sodium percarbonate, sodium perborate or percarbamide.

2. The oxygenating agent for aquaculture according to claim 1, wherein: the oxygen increasing agent comprises the following components in percentage by mass:

50% of sodium percarbonate ~ 90%;

anhydrous sodium sulfate 5% ~ 25%;

sodium chloride 5% ~ 25%;

1 per mill ~ 5 per mill of surfactant.

3. The oxygenating agent for aquaculture according to claim 1, wherein: the oxygen increasing agent comprises the following components in percentage by mass:

sodium perborate 50% ~ 100%;

anhydrous sodium sulfate 0% ~ 25%;

sodium chloride 0% ~ 25%;

1 per mill ~ 5 per mill of surfactant.

4. The oxygenating agent for aquaculture according to claim 1, wherein: the oxygen increasing agent comprises the following components in percentage by mass:

percarbamide 50% ~ 90%;

anhydrous sodium sulfate 5% ~ 25%;

sodium chloride 5% ~ 25%;

1 per mill ~ 5 per mill of surfactant.

5. The oxygen increasing agent for aquaculture according to claim 1 ~ 4, wherein the surfactant is one or more of magnesium stearate, talc and polyethylene glycol.

6. The method for preparing oxygen increasing agent for aquaculture according to claim 1 ~ 5, wherein the method comprises the following steps:

sieving

Sieving the main material, anhydrous sodium sulfate and sodium chloride with 3 ~ 4 mm sieve;

(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 oxygen increasing agent for aquaculture.

7. The method of preparing a disinfectant for aquaculture according to claim 6, wherein: the mixer is a trough mixer or a cone mixer.

8. The method of preparing a disinfectant for aquaculture according to claim 6, wherein: 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 oxygen increasing agent for aquaculture and a preparation method thereof.

Background

The chemical preparation containing peroxy groups, having oxidizing ability and capable of improving aquaculture water environment is generally called a peroxide water quality improver, and commonly comprises hydrogen peroxide, calcium peroxide, sodium percarbonate, urea peroxide, potassium peroxymonosulfate and the like, and has the main characteristics of no secondary pollution to the water environment and efficient and rapid effect of improving water quality.

The peroxide water quality modifier is mainly used for modifying and purifying water quality, modifying substrate and increasing dissolved oxygen in water in aquaculture industry, and can also be used for sterilization, disinfection, detoxification, stress resistance and the like. Although peroxide has many uses, different varieties have different characteristics, and the effect and the efficacy of improving water quality are different.

1. Hydrogen peroxide

Hydrogen peroxide, commonly known as "hydrogen peroxide", is a very widely used green chemical, and is a basic raw material for the synthesis of all peroxide adducts and derivatives. Generally, the higher the redox potential, the stronger the oxidizing power, and the redox potential of hydrogen peroxide is 1.77V in an acidic solution, 1.1V in a neutral solution, and 0.87V in an alkaline solution. Therefore, the oxidation capacity of hydrogen peroxide in an acidic solution is higher than that in an alkaline solution, but the oxidation reaction speed in an acidic solution is slower than that in an alkaline solution. In addition, hydrogen peroxide exhibits a stronger reducibility in an alkaline solution than in an acidic solution, and can be oxidized by an oxidizing agent such as potassium permanganate, ozone, or chlorine to generate water and oxygen.

Hydrogen peroxide can spontaneously carry out disproportionation decomposition reaction in an acidic solution or an alkaline solution to generate water and oxygen, and particularly, the decomposition reaction speed in the alkaline solution is higher than that in the acidic solution, so that the hydrogen peroxide is more easily decomposed to release oxygen; in addition, the decomposition of hydrogen peroxide is also affected by other factors, such as catalysts, temperature, light, trace metal ions, etc., which accelerate the decomposition.

The main functions of hydrogen peroxide in aquaculture industry are as follows: firstly, the water quality is improved, and the water quality is improved by oxidizing organic matters; secondly, detoxification, namely oxidizing and degrading ammonia nitrogen and nitrite nitrogen and degrading the residues of organic and inorganic sulfides, chlorine-series disinfectants and pesticides; oxygen is increased, and hydrogen peroxide can be used as an oxygen increasing agent for oxygen increasing and oxygen deficiency emergency treatment of the pond; fourthly, the disinfectant can be used as an external medicine or a medicine synergist for preventing and treating diseases of aquaculture animals.

The aquaculture water environment is a very complex ecosystem, and the physicochemical indexes of the water quality are in dynamic change all the time, which determines that the effect of the hydrogen peroxide is different due to different physicochemical factors such as use time, weather, pH value of water body and the like in the use process, for example, the hydrogen peroxide mainly shows an oxygen increasing effect when used in the water body with higher pH value and high hardness, and mainly oxidizes organic matters to improve the water quality when used under the condition of medium acid water quality.

2. Sodium percarbonate

The sodium percarbonate is an adduct of hydrogen peroxide and sodium carbonate, and hydrogen peroxide and sodium carbonate are generated after water is dissolved. After the sodium percarbonate is dissolved in water, hydrogen peroxide molecules are in a strong alkaline microenvironment and can be quickly decomposed into water and oxygen, so the sodium percarbonate is mainly used for oxygen enrichment and oxygen deficiency emergency treatment in ponds in aquaculture.

3. Urea peroxide

The urea peroxide is also called percarbamide, is an adduct of hydrogen peroxide and urea, generates hydrogen peroxide and urea after water is dissolved, and has neutral solution and slower oxygen release speed than sodium percarbonate. The urea peroxide in the aquaculture water environment is more characterized by hydrogen peroxide, so that the urea peroxide also has the functions of improving water quality, increasing oxygen and the like, and the action effect and the emphasis point of the urea peroxide depend on various physicochemical condition factors during use.

4. Calcium peroxide

Calcium peroxide is mainly used for oxygenation and substrate improvement in aquaculture industries due to the alkaline action of the calcium peroxide after the calcium peroxide is dissolved in water, the water purification action of calcium ions and the low solubility of the calcium peroxide in water.

5. Potassium hydrogen peroxymonosulfate

Potassium monopersulfate, also known as potassium monopersulfate (KHS 05), is a strong acidic oxidizing agent that hydrolyzes in water to hydrogen peroxide and potassium hydrogen sulfate, with an oxidation-reduction potential of 1.776V, similar to hydrogen peroxide under acidic conditions. The potassium peroxymonosulfate is an acidic composite salt consisting of three components of potassium peroxymonosulfate (KHSO 5), potassium hydrogen sulfate (KHSO 4) and potassium sulfate (K2 SO 4), and an active substance playing an oxidizing role is potassium peroxymonosulfate KHSO5, the content of the active substance is generally 42% -46%, and the content of the active oxygen (O) is 4.5% -4.9%; the oxidation function of the catalyst mainly comes from the strong oxidation of hydrogen peroxide generated after hydrolysis under high acidic conditions.

The five raw materials can be used for relieving the oxygen deficiency condition of aquatic animals caused by low dissolved oxygen in a water body in the aquaculture process, but the substances are all easy to dissolve in water, most of the materials are dissolved on the surface of the water body in the splashing process of the pond, and the uniform oxygenation of the pond cannot be realized.

Disclosure of Invention

The invention is provided for overcoming the defects in the prior art, and aims to provide an oxygen increasing agent for aquaculture and a preparation method thereof.

The invention is realized by the following technical scheme:

an oxygen increasing agent for aquaculture comprises the following components in percentage by mass:

50% of main material ~ 100% of 100%;

anhydrous sodium sulfate 0% ~ 25%;

sodium chloride 0% ~ 25%;

1 per mill ~ 5 per mill of surfactant;

the main material is any one of sodium percarbonate, sodium perborate or percarbamide.

In the technical scheme, the oxygen increasing agent comprises the following components in percentage by mass:

50% of sodium percarbonate ~ 90%;

anhydrous sodium sulfate 5% ~ 25%;

sodium chloride 5% ~ 25%;

1 per mill ~ 5 per mill of surfactant.

In the technical scheme, the oxygen increasing agent comprises the following components in percentage by mass:

sodium perborate 50% ~ 100%;

anhydrous sodium sulfate 0% ~ 25%;

sodium chloride 0% ~ 25%;

1 per mill ~ 5 per mill of surfactant.

In the technical scheme, the oxygen increasing agent comprises the following components in percentage by mass:

percarbamide 50% ~ 90%;

anhydrous sodium sulfate 5% ~ 25%;

sodium chloride 5% ~ 25%;

1 per mill ~ 5 per mill of surfactant.

In the above technical scheme, the surfactant is any one or more of magnesium stearate, talcum powder or polyethylene glycol.

The preparation method of the oxygen increasing agent for aquaculture comprises the following steps:

sieving

Sieving the main material, anhydrous sodium sulfate and sodium chloride with 3 ~ 4 mm sieve;

(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 oxygen increasing agent 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 oxygen increasing agent for aquaculture and a preparation method thereof, and solves the problems of high dissolving speed, uneven splashing and the like of an oxygen increasing product through a tabletting process, realizes oxygen increasing at the bottom of a pond and diffusion to the surface layer, can realize oxidation of harmful substances such as sludge at the bottom and the like, and radically solves the problem of water. The active oxygen content can be adjusted according to the control of the material input ratio.

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 oxygen increasing agent for aquaculture and the preparation method thereof of the invention are further described by the specific embodiments.