Salt-tolerant efficient denitrification-type microbial preparation for water treatment

Abstract

The invention discloses a salt-tolerant efficient denitrification-type microbial preparation for water treatment. The microbial preparation consists of the following components in percentage: 2.5-5% of halophilic archaea, 5-10% of bacillus subtilis, 5-10% of pseudomonas denitrificans, 5-10% of halomonas and 5-10% of halophilic bacteria, and 5-10% (w / t) of bamboo charcoal particles are added. The microbial preparation for water treatment consisting of halophilic archaea, pseudomonas denitrificans, bacillus subtilis, nitrifying bacteria, denitrifying bacteria and coryneform bacteria still has good denitrification capacity under the condition of high salt, and solves the limitation of a high salt environment on traditional biological denitrification methods. The bamboo charcoal particles have good adsorption performance because of large specific surface area, can be in direct contact with microorganisms better, and can adsorb organic matters on the surface, so that the formation of a surface biological membrane is promoted; and on the other hand, a large amount of oxygen can be stored in the bamboo charcoal particles, so that oxygen-containing components in a water area are improved, and a water area recovery effect is improved.

Description

technical field [0001] The invention belongs to the field of microbial preparation production, and in particular relates to a salt-tolerant and high-efficiency denitrification type water treatment microbial preparation. Background technique [0002] High-salt wastewater refers to wastewater with a salt content greater than 1% (w / v), and some even exceed 20%. It has a wide range of sources and complex components, and contains a large amount of soluble inorganic salt ions such as Cl-, SO42-, Na+ and Ca2+. At present, the treatment methods of high-salt wastewater mainly include physical and chemical methods, biochemical methods and combined processes. Among them, physical and chemical methods include evaporation, membrane separation, ion exchange electrolysis, etc. Although the treatment effect is good, most of them have problems such as high cost and high energy consumption, which seriously restricts the application of physical and chemical methods in the actual high-salt was...

AI Technical Summary

Problems solved by technology

However, the high concentration of inorganic salts in high-salt wastewater will inhibit or even poison the microorganisms in activated sludge, destroy its flora structure, and cause it to lose its degradation ability. Therefore, the application of biochemical methods in the treatment of high-salt wastewater has been greatly restricted.

In recent years, people have gradually adapted to the salt environment of high-salt wastewater by acclimating ordinary activated sludge to obtain microorganisms with a certain salt tolerance, but there are still some microorganisms with low salt tolerance, low treatment efficiency, and poor resistance to salinity shocks And other issues