Does anyone know how to degrade the nitrite in the water is too high thank you

There are three ways to degrade the nitrite content in the water that exceeds the standard.

1. Use "nitros-net".

Directly use 500g of "nitrosonet" plus 250g of "Dijuning" to dry sprinkle the whole pool, and then use "honey pole" the next day (dilute 1000 times with water according to the actual amount of water and sprinkle the whole pool evenly). Under normal circumstances, only 1 or 2 times a month can effectively control the nitrite content within the allowable range, so as to achieve the purpose of purifying water and changing the water environment.

2. Physical adsorption method.

The physical adsorption method uses substances with high adsorption capacity, such as zeolite powder, silica gel, activated carbon, sepiolite and other adsorbents, to adsorb nitrite in its structure. This method is widely used in production, and many bottom modification products contain adsorbent components. Its advantages are short action time and low cost.

The disadvantage is that the dosage is large, such as zeolite powder, 50-100 kg mu.

3. Fertilizer and water method.

Nitrite is rich in nitrogen fertilizers and is an essential nutrient for algae growth and reproduction. Therefore, accelerating the growth and reproduction of algae in water bodies can effectively reduce the concentration of nitrite. The production method is achieved by using single-cell plant growth regulators (sodium compound nitrophenol, biochemical fulvic acid, sodium humate, amino acids, etc.), photosynthesis catalysts, trace elements, silicon fertilizers, etc.

It is worth noting that when the nitrite of the water body is high, it means that the nitrogen fertilizer is relatively sufficient, do not use nitrogen fertilizer, increase the burden of nitrogen cycle in the water body, and apply phosphorus fertilizer to achieve the purpose of "promoting nitrogen with phosphorus".

Low concentrations of nitrite nitrogen were treated by biochemical denitrification and denitrification, and high concentrations of nitrite nitrogen were treated by electrocatalytic reduction.

Nitrite can convert ferrous hemoglobin into nitrosorcohemoprotein, and Sun Hui makes hemoglobin lose its function of carrying oxygen, causing hypoxia in fish; Nitrite, which spreads into the bloodstream, causes hemolysis, leading to a decrease in red blood cells used to carry oxygen, further aggravating hypoxia. Nitrite will affect the activity of antioxidant enzymes in fish, shrimp and other farmed animals, and also affect the activity of lysozyme, thereby reducing the disease resistance and immunity of farmed animals and inducing diseases in farmed animals.

Timely replenish the beneficial microorganisms of the aquaculture water, promote the decomposition and transformation of organic pollutants in the aquaculture water, and prevent the accumulation of nitrite. Under the condition of high-density farming, disinfectants will be used regularly to prevent the outbreak of bacterial diseases, which not only kills harmful bacteria, but also inhibits the reproduction of beneficial bacteria or kills them by mistake, which directly blocks the oxidative decomposition of organic pollutants; Even if there is still a certain amount of nitrifying bacteria that decompose nitrite nitrogen, the nitrification effect will be weakened after the whole pool is splashed with disinfectant, which will lead to the accumulation of nitrite nitrogen.

Nitrate can convert ferrous hemoglobin into nitrosofhemoglobin, so that hemoglobin loses the function of carrying oxygen, causing hypoxia in fish; Nitrite, which spreads into the bloodstream, causes hemolysis, leading to a decrease in red blood cells used to carry oxygen, further contributing to hypoxia in the body. Nitrite will affect the activity of antioxidant enzymes in fish, shrimp and other farmed animals, and also affect the activity of lysozyme, thereby reducing the disease resistance and immunity of farmed animals and inducing diseases in farmed animals. A strong reducing agent is used to promote denitrification to degrade nitrite.

Nitrite is an amphoteric substance, and its oxidation can be used when degrading. When nitrite is slightly high, the whole pond can be splashed with "fresh water" or "refreshing" to reduce nitrite to nitrogen, promote the denitrification of the aquaculture water, and thus degrade nitrite.

Summary. Chlorine dioxide or ozone, which can further oxidize nitrite to less toxic nitrate, thereby reducing the nitrite level in the water. The water is then treated with activated carbon to remove halogenated hydrocarbons.

In this way, the content of harmful substances in the water can be greatly reduced, so as to ensure the quality of drinking water and protect the health of the people. The above is simply as follows: chlorine dioxide or ozone is added to the hydrocarbons, and then activated carbon absorbs halogenated hydrocarbons.

Chlorine dioxide or ozone, which can further oxidize nitrite from nitrite to less toxic nitrate, thereby reducing the nitrite content in water. The water is then treated with activated carbon to remove halogenated hydrocarbons. In this way, the content of harmful substances in the water can be greatly reduced, so as to ensure the quality of drinking water and protect the health of the people.

The above is simply as follows: dioxan excavated chlorine or ozone is added to the loose sail for oxidation, and then activated carbon absorbs halogenated hydrocarbons.

If the nitrite exceeds the standard, you can use dioxide, such as acacia chain chlorine disinfectant, and the World Health Organization recommends Mingmeng's food-grade disinfectant residue, which can treat drinking water and reduce the content of nitrite.

Reducing the nitrite (nitrite ion, NO2-) content in water can be treated quickly in a few ways:

1.Addition of reducing agent: The reduction of nitrite to nitrogen gas is a common treatment.

For example, sodium thiosulfate (Na2S2O3) can be added as a reducing agent to reduce nitrite to nitrogen. This allows the state to convert nitrite into nitrogen and discharge it out of the water body.

2.Use of biological treatment: Water containing nitrite is introduced into a biological treatment facility, and the nitrite is converted into nitrogen gas or nitrate (an oxidation product of nitrite) by the action of microorganisms, thereby achieving water purification.

3.Addition of nitrification inhibitors: In some cases, nitrite production is caused by nitrifying bacteria. Nitrification inhibitors, such as nitronitrate (NAN3), can be added to inhibit the activity of nitrifying bacteria, thereby reducing nitrite production.

4.Photolysis reaction: Under the irradiation of ultraviolet light, nitrite can undergo photolysis reaction and decompose into nitrogen and water. Ultraviolet light treatment devices can be used to degrade nitrite in water.

5.Improve the water environment: Reducing the content of organic matter and nitrite precursors such as ammonia nitrogen in the water body can reduce the formation of nitrite. Therefore, it is also important to strengthen the environmental management of water bodies to prevent the input and accumulation of pollutants to reduce nitrite content.

The appropriate method for treating nitrite in water needs to be selected on a case-by-case basis. When disposing of the process, it should also comply with relevant environmental regulations and standards to ensure that the treatment process is safe and effective and does not have a negative impact on the environment. If you need to treat a large body of water, it is best to consult a professional environmental protection agency or water treatment expert for more professional guidance.

High levels of ammonia nitrogen and nitrite are common in intensive ponds. It can be said that there is no way to completely solve the problem, and we can only take measures to deal with it comprehensively.

In order to prevent the occurrence of ammonia nitrogen and nitrite exceedance, the following comprehensive measures should be taken in daily management:

1) Pay attention to the appropriate amount of bait, not excessive.

2) Be careful not to make the water hypoxic, and often turn on the aerator or apply the aerator.

3) Don't make the water color too strong to prevent blooms.

4) Use pond poison or chlorine dioxide for routine disinfection.

5) Use fertilizer and water, especially for ponds where ammonia nitrogen often exceeds the standard, do not use organic fertilizer water.

6) Use oxygenation to improve the substrate.

Once ammonia nitrogen and nitrite exceed the standard, the following measures should be taken to solve it:

1) Under normal circumstances, first of all, alkali elimination should be used to reduce the pH of the water body, so that the pH is reduced to below 8, and then the whole pool of zeolite powder and nitrification activated water element is used to splash it, and in this case, an aerator is added, which will effectively reduce the content and toxicity of ammonia.

2) The nitrite content is too high, and the whole pond can be sprinkled with pond poison or coarse salt (10 kg mu), but the effect of coarse salt is not as good as pond poison clearing.

3) Ammonia nitrogen is too high, the water quality is thinner, fertilizer water plus superphosphate (10 kg mu) can be applied, try not to open the aerator during the day on a sunny day, 2 3 days have an effect.

The nitrogen in the water is mainly used for the nitrogen fixation of aquatic organisms and the organic nitrogen of animals and plants, and is balanced through the nitrogen cycle. After a large number of aquatic animals are cultivated, there are too many residues and manure, and the water body has no time to circulate, resulting in nitrogen accumulation, ammonia nitrogen and nitrite increase, which causes harm to aquatic animals.

When nitrite in the water is reached, the number of red blood cells and hemoglobin in fish gradually decreases, and the oxygen-carrying capacity of the blood is gradually lost, which will cause chronic poisoning in fish. At this time, the fish feed is reduced, gill tissue is diseased, breathing is difficult, and restlessness occurs. When nitrite is reached, the function of some metabolic organs of the fish is abnormal, and the physical strength declines, and it is easy to get sick at this time.

In many cases, the death of a whole pool outbreak of disease is due to high nitrite levels.

The addition of Ulanbao (yucca extract) can improve the utilization rate of protein in the feed, thereby slowing down the increase in ammonia content caused by feed and residues, fundamentally reducing the content of ammonia nitrogen and nitrite in the water body, and also reducing the content of total ammonia nitrogen in the water body by splashing in the water body. Youlanbao - reduce intestinal ammonia from the source, improve the conversion of protein, reduce the discharge of nitrogen source, and then alleviate the increase in ammonia nitrogen caused by excess protein in the water body!

Plant extraction, safe, efficient, no residue!

Ammonia nitrogen and nitrite.

On the one hand, the high is due to.

The water in the ponds is thin (this does not include the increase in ammonia and nitrite in the ponds due to the recent use of fertilizers with high nitrogen content), and on the other hand, it is due to the imbalance of the carbon and nitrogen ratio in the ponds, i.e. the deficiency.

Carbon source. I have read a literature before that the carbon and nitrogen ratio in the pond has the effect of degrading nitrite, so appropriately increasing the carbon and nitrogen ratio of the pond should have the effect of degrading ammonia nitrogen and nitrite (I have tracked a pond nitrite before.

1. Causes and hazards of excessive nitrite in water Nitrite is an intermediate product of ammonia nitrogen in nitrification, which is formed by nitrate in the absence of oxygen and NH4+ through the oxidation process of nitrosifying bacteria. When the concentration of nitrite reaches milligrams, the blood of the fish becomes chocolate-colored, that is, "brown blood", which makes the gills of the fish swollen, the feeding decreases, the growth is slow, and the disease increases; When it reaches milligrams, the fish body is poisoned due to insufficient physiological and metabolic function, the respiratory effect is reduced, the physical fitness is weakened, and the whole pool is sick and dies. 2. Methods for reducing the concentration of nitrite in water Under normal circumstances, nitrite in water should be controlled within milligrams; Methods of Reduction:

Increase oxygen, aeration, increase dissolved oxygen in water (insist on opening the aerator for one to two hours at noon on a sunny day), so that the chemical reaction is carried out in the direction of nitrate. Add good fresh water to the pool. Maintain the pH value of the pool water greater than and maintain high levels of hard water and chloride.

Use chemical or biological agents to regulate water quality, such as zeolite powder, aminofarin, etc.