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    Home > Biochemistry News > Biotechnology News > What is the use of nitrification bacteria? The biological characteristics of nitrosise preparations.

    What is the use of nitrification bacteria? The biological characteristics of nitrosise preparations.

    • Last Update: 2020-08-10
    • Source: Internet
    • Author: User
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    In recent years, nitrobacteria has become a hot topic in aquaculture, and its importance in aquaculture has begun to attract wideattention.
    can say that, to date, in large-scale, intensive aquaculture models, it is quite difficult to successfully cultivate in the case of a clean water action involving nitrification bacteria.
    the following small compilation for everyone to answer what the use of nitrification bacteria and the biological characteristics of nitrosise preparations.
    fish, shrimp and other aquatic animals eat, drink, excretion, life, rest are carried out in the water body, then, how to manage the water quality of the water in order to fit its growth, survival, robust ness has become an important issue.
    especially modern intensive aquaculture long-term accumulation of a large number of farmed biological excreta, all organic excreta, and even its carcasses, under the action of hetero-breeding bacteria, the protein and nucleic acid will slowly decompose, producing a large number of ammonia and other harmful substances containing nitrogen.
    ammonia is converted into nitric acid under the action of nitrosized bacteria or photosynthesis bacteria, nitric acid and some metal ions can be combined to form nitrite, and nitrite can be combined with amines, the formation of a strong carcinogenic action of nitrosamines.
    therefore, nitrite softening is often compared with the infamous ammonia, because nitrite long-term accumulation poisoning, will make fish, shrimp and other disease resistance reduced, easy to cause a variety of pathogenic bacteria, so it is often considered to be the cause of fish, shrimp disease.
    however, when nitric acid is converted into nitric acid under the action of nitride bacteria, nitrates can easily form, thus becoming a nutrient that can be absorbed and utilized by plants.
    so, the relationship between nitrification bacteria and the culture environment is very close.
    some of the hetero-culture bacteria and fungi that are declared to have nitricing effect in the market at present, although ammonia can also be oxidized into nitrates, but usually only use organic carbon sources to obtain energy, can not use inorganic carbon sources, its oxidation of ammonia is very weak, the reaction rate is much slower than self-fed nitrification bacteria, can not be regarded as a real nitrification effect.
    nitrification must rely on self-fed nitrification bacteria.
    the breeding pool has a rich source of nitrogen, originally very suitable for the growth of nitrobacteria, but because of the existence of a large number of hetero-breeding bacteria in the breeding pool, subject to the rejection of hetero-breeding bacteria, suitable for the place where the nitric bacteria live, relative to the natural environment is obviously much less, so there is not a sufficient number of self-fed nitric bacteria to consume excessive nitric acid nitrogen, this is the problem. what is nitrification bacteria
    ? Nitrobacteria are a class of bacteria that use ammonia or nitrite as the primary source of energy, and carbon dioxide as the main source of carbon.
    nitrification bacteria are divided into nitrification bacteria and nitrosized bacteria. The main function of
    nitrousized bacteria is to convert ammonia nitrogen into nitrite, while nitrification bacteria are mainly functioning to convert nitrite snitin to nitrate.
    ammonia nitrogen and nitrite are toxic substances produced in aquaculture systems, and nitrites are strong carcinogens.
    the nitrification effect of nitrification bacteria1, low water body Central Asian nitrate content, to maintain the growth of culture.
    nitricbacteria converted nitrites into nitrates, reduced the content of nitrates in water, reduced or even completely lifted the toxicity of nitrites to culture, so that cultured animals to eliminate chronic death, vitality, emergency capacity strengthening, increased food consumption, growth speed accelerated, and maintained the growth of culture.
    2, increase the nitrate content in the water body, promote the growth of algae in the water body has advantages of algae growth of the three major elements are carbon source, nitrogen source and light.
    the best carbon source is carbon dioxide, and the best nitrogen source is the mixture of ammonium and nitrate, the mixing ratio is 1:4, as this ratio changes (other growth conditions remain unchanged), the growth of algae will be limited, nitricbacteria can convert nitrite into nitrates, increase the content of nitrates in the water, maintain the healthy growth of the dominant algae group, so as to maintain the benefits of algae In the dominant position, and through biological competition to inhibit the growth of harmful algae, prevent water aging 3, reduce alkaline substances in the water body, increase acid, reduce pH water pH increase mainly because of the high erthanity content in the water body, even if the application of acid (such as oxalic acid, lactic acid, citric acid, hydrochloric acid, etc.), can only be temporarily controlled.
    nitricized bacteria and nitric acid bacteria are symbiotic bacteria, can promote the growth of nitric acid bacteria, reduce ammonia nitrogen, reduce alkaline substances in the water body;
    so nitrification bacteria can reduce alkaline substances in the water body, increase acidic substances, reduce the pH value.
    the reduction of ph value of nitrification bacteria has the effect of both specimen and cure, and the maintenance time is longer.
    the classification and functional nitrification bacteria of nitrous bacteria are divided into nitrosized bacteria and nitrosized bacteria, the main function of nitrosise is to convert ammonia nitrogen into nitrite;
    ammonia nitrogen and nitrite are toxic substances produced in aquaculture and nitrite scored or strong cancer control substances, so how to degrade these two substances, is the focus of scientists in recent years, because the growth rate of nitrous oxide slower and photosynthesis bacteria also have the role of degeneration ammonia nitrogen, so modern aquaculture has been able to successfully control ammonia nitrogen at a lower level.
    and for nitrites, because the growth of nitrobacteria in nature is very slow and no other microorganisms have been found to replace the function of nitrobacteria, so the nitrite produced in the breeding process has become a key factor hindering the development of aquaculture. After many years of efforts,
    researchers, through a large number of experimental screening, and finally developed a new type of purified nitrobacteria preparation "nitrification treasure", it can effectively reduce nitrite to the specified concentration.
    biological properties of nitrosisian preparations in order to grow and reproduce, in addition to the need for the basic substances that can be used to construct the cellular composition, but also need to obtain energy.
    nitrosisisisis is a chemical energy self-breeding bacteria, is the use of inorganic substances to obtain energy, nitrosise bacteria use nitrous nitrogen to obtain the chemical energy required for synthesis reaction, in the body to manufacture sugar, and the production of sugars takes a considerable amount of time, unlike other heterogenous bacteria can be directly decomposed from organic matter and ingested the necessary sugars, so the rate of growth and reproduction of nitrosisel is far slower than the general hexagenic bacteria.
    temperature, acid base and dissolved oxygen concentration in water have important effects on the growth of nitrification bacteria.
    nitrification bacteria is the main role of biological denitrification in the process of microorganisms, the number of nitrobacteria in water directly affect snitrification effect and biological denitrification efficiency, the concentration of nitrification agents and nitrification efficiency is proportional.
    the presence of nitrous bacteria in the aquarium, there is bound to be a surge in ammonia levels, no matter what method you use or any aquarium supplies can not completely solve the problem.
    when the ammonia concentration in the water reaches the deadly concentration of aquatic organisms, the results may be the same for any aquarium creature -- that is, death, and you'll be guilty.
    But if the water contains a sufficient amount of nitrification bacteria for you to constantly remove ammonia from the water, then the stability of the entire aquarium ecological balance system will be ensured and the aquarium will be safely living in the aquarium.
    nitrification bacteria is an aerobic bacteria that can grow in oxygen-filled water or gravel and play an important role in the process of nitrogen-cycle water purification.
    they include a type of bacteria, cocci and helical bacteria, which belong to the absolute self-contained microorganisms, including two completely different metabolic groups: 1. Nitrosomonas: the bacteria that eliminate ammonia (oxidized) in the water ecosystem and produce nitric acid;
    2. Nitrobacter: The oxidation of nitric acid molecules can be converted into bacteria of nitric acid molecules.
    the genus nitrate bacteria, generally known as "nitric acid oxidizing", because the food source for which it depends is nitric acid (but not necessarily nitric acid, other organic matter is also possible), it and oxidation can produce nitric acid, the production of chemical energy sufficient to make it viable.
    because these nitrobacteria can break down toxic chemicals (ammonia and nitric acid) in the water to remove, so it has the function of purifying water quality.
    however, it is important to note that nitrification bacteria play the best results in the water quality pH-neutral, weakalkaline environment, and the worst effect in acidic water quality.
    here to teach everyone a home-made method of nitrification bacteria, a pot of water purification, a two-two herring, it is best to die alive, lest there is disease.
    put the fish dead in the basin, oxygen, and so on fish corruption, then will give off a smell, the water will be cloudy, continue to oxygen, until one day, this basin of water suddenly very clear, then, congratulations, you have successfully cultivated a basin of authentic nitride bacteria, rather than culture, it can be poured into the cylinder.
    this method is simple and economical, the only thing to pay attention to is to maintain hygiene, do not take sick fish to cultivate, otherwise the consequences.
    the specific nitrification bacteria in the actual use of various factors, of course, its results have a certain decisive, please be careful, unless you do not bother to change water or the pursuit of water transparency.
    self-cultivation refers to the metabolic type in which the vast majority of green plants and a small number of species of bacteria are used as a source of light energy or chemical energy, carbon dioxide in the environment as a source of carbon, and to store energy.
    from the category point of view, self-support type can be divided into light energy self-support type and chemical energy self-support type.
    light energy self-cultivation refers to the self-raising type of organic matter that uses light energy to synthesize carbon dioxide in the atmosphere and water in the soil.
    self-cultivation refers to the self-cultivation type of organic matter that uses the energy released by the oxidation of ammonia into nitric acid ions to synthesize carbon dioxide in the atmosphere and water in the soil.
    self-supporting organisms have obvious characteristics is that they do not need to consume ready-made organic matter, but can synthesize their own organic matter for their own life activities need.
    also provide a large amount of organic matter for consumers (who cannot synthesize their own organic matter, but can only consume ready-made organic matter to sustain the organisms needed for their life law activities) and the decomposers (the organisms that need to support their own life activities by breaking down the organic matter). the emergence and survival of
    self-supporting organisms in nature not only provides a large number of organic matter for consumers and decomposers, but also plays an important role in maintaining the stability of the carbon and nitrogen cycles in nature.
    without self-supporting organisms, our carbon and nitrogen cycles in nature cannot be balanced, and now all living things in nature cannot survive.
    Note: Self-supporting organisms contain the vast majority of plants and some bacteria (bacteria mainly refers to nitrification bacteria) heteroculture type is one of the three major types of biological metabolism, it refers to can not self-synthetic organic matter, but by oxidation decomposition of ready-made organic and oxidized organic energy to maintain their own life activities needed metabolic type.
    also has the same behavioral stereotypes that are called hetero-breeding organisms.
    the form of organic matter is used by hetero-organisms in two forms, one is to completely decompose organic matter into carbon dioxide and water, while releasing a large amount of energy, and the other is to break down organic matter into incomplete oxidizing products lactic acid or alcohol and carbon dioxide.
    at the same time, the natural organisms mainly include consumers (cannot synthesize their own organic matter, can only rely on the consumption of ready-made organic matter to maintain their own life law activities needed organisms) and decomposers (by breaking down organic matter to maintain their own life activities needed organisms).
    for the heterogenous organism, it has one of the most obvious characteristics, it is: can not make their own organic matter, can only rely on the outside to ingest ready-made organic matter to maintain their own survival, otherwise the organism will be difficult to survive.
    therefore, heterogeneous organisms also play an irreplaceable role in the entire biosphere.
    if there are hetero-breeding organisms, self-supporting organisms can also be smoothly decomposed into inorganic, carbon cycle of nitrogen cycle stability can also be stable, otherwise, the entire biosphere will be seriously unbalanced, or even no longer exist.
    the application of nitrous bacteria in aquaculture precautions: 1, do not use with sterilizing agents in order to avoid the killing of clean water bacteria, remember not to use with the sterilization agent at the same time, if you must use bactericids or treatment of fish disease sagents, need to wait for the use of drugs for at least one week before the use of water purification bacteria.
    2, pay attention to adjust the temperature suitable for bacterial growth in the use of clean water bacteria, can effectively control the most suitable water temperature conditions, of course, its effect is also the most ideal.
    for example: photosynthesis bacteria in the range of 23-29 degrees C can grow and reproduce normally, when the water temperature is less than 23 degrees C, their growth gradually stagnates, so the use of such bacteria in water below 23 degrees C is less effective.
    3, pay attention to adjust the pH value suitable for bacterial growth in the use of water purification bacteria, we must pay attention to the change of water acidity and alkalinity ph.
    for example: freshwater nitrification bacteria in the ph value is equal to neutral when the best effect, in the acidic water quality of the worst effect, so if the water quality in the aquarium can be adjusted to neutral or weak alkaline, its water purification effect will be better.
    and photosynthesis bacteria are the most effective in the water quality of ph value 8.2-8.6, so it is more suitable for use in marine aquaculture.
    4, pay attention to the common almost cosy between bacteria to simultaneously stock different water purification bacteria should pay attention to the common almost cosy between bacteria.
    such as nitrification and photosynthesis bacteria are not suitable for simultaneous use because their processes of purifying water are inhibited and may reduce their purification effect.
    .
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