Microbial bacteria remediation for aquaculture environment

1. The function of removing carbon, nitrogen and phosphorus  

Such as Bacillus, alkali bacillus, Pseudomonas, flavobacterium and other complex bacteria have the ability to remove carbon, nitrogen, phosphorus compounds in water, and can transform sulfur, iron, mercury, arsenic and other harmful substances.  Photosynthetic bacteria can degrade 98% of BOD carbon-containing wastewater and remove 66.7% of total nitrogen. It is reported that photosynthetic bacteria are the main participants of C, N and S cycle in water, which can significantly improve water quality, increase oxygen, ammonia nitrogen and nitrate nitrogen in water, and reduce sulfide.  

2. Flocculation   

Such as bacillus, acinetobacter, obligate anaerobic desulfurization of isolated bacteria, false single spore fungus, production base, yellow bacillus, colorless, micrococcus, dynamic adhesive bacteria have biology flocculent effect, such as adhesion to each other together, constitute a zoogloea, undertake the task of oxidation decomposition combines organic flocculent, heavy metal ions, P element precipitation, purification of water.

3. Nitrification   

Nitrification is a process in which microorganisms oxidize NH3 produced in water to nitrate, which provides nutrients for algae growth, which is of great significance for river recovery.  It is mainly divided into two processes: the first stage is the oxidation of ammonia to nitrite, such as nitrocellulobacterium, nitrocellulobacterium, nitrocellulococcus, etc.; the second stage is the oxidation of nitrite to nitrate, such as nitrocellulobacterium, nitrocellulococcus, nitrocellulobacterium, etc.  

4. Denitrification  

For example, Bacillus, short Bacillus and Pseudomonas are aerobic bacteria and facultative anaerobes. With molecular oxygen as the carrier, nitrate can be used as the final electron carrier to produce NO2-, N and nitrogen in time and space when oxygen supply is insufficient, and denitrification can be performed to remove nitrate from the system and improve PH.  

5. Remove silt   

Activated carbon desilting method is that microorganisms using activated carbon sludge begin to grow with organic matter under aerobic conditions, and some organic matter is degraded by microorganisms, so COD and BOD in water are reduced.  Japanese scholars reported in 1998 that fluorspar and igneous sand were used to adsorb a Lactobacillus to decompose organic silt at the bottom of shrimp ponds, resulting in a reduction in the amount of organic silt by 1/2-1/3, a reduction in H2S by 1/3, and an increase in the survival rate of shrimp by 10%-20%.  

6. Nitrogen fixation   

Mainly nitrogen-fixing algae and bacteria, such as: nitrogen-fixing monomonas, Enterobacter, Bacillus, Clostridium, photosynthetic bacteria, cyanobacteria anabaena, alfalfa rhizobia, etc., they can turn nitrogen into organic nitrogen, provide bait particles and fertilizer for aquaculture, with great potential.  

As the main degradation group in the biological community, microorganisms have achieved remarkable results in the treatment of water pollution, solid waste pollution, heavy metal pollution, compound pollution, oil and air pollution, and are not easy to cause secondary pollution. They have a wide range of applications and play a huge role in the field of environmental pollution control.