Functional strain, and microbial agent and application thereof

Abstract

The invention belongs to the field of environment protection, and specifically relates to a bacillus subtilis strain which is collected in China General Microbiological Culture Collection Center on August 15th, 2011 and has a collection register number of CGMCC No. 5140. The stain is named as W58, and has a categorical name of bacillus subtilis. The stain has substantial deodorizing and antibacterial effects against various effluvial environments. A microbial agent produced by using the bacillus subtilis strain W58 has relatively high NH3 average removal rate, relatively high H2S average removal rate, and relatively high odor concentration average removal rate. The microbial agent can be applied in deodorizing and purifying of garbage, domestic sewage, poultry house air, and the like.

Description

technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to a Bacillus subtilis strain capable of absorbing and degrading malodorous gas substances, and a microbial bacterial agent produced by using the functional strain and its application. Background technique [0002] Stench is a general term for various smells (odors), and is one of seven typical public hazards such as air pollution, water pollution, soil pollution, and noise pollution in the world today. It directly affects people's sense of smell and causes direct harm to people. Among the more than 2 million compounds in nature, more than 4,000 compounds can be recognized by human perception to have foul odors. Except for specific industrial odors, compounds such as hydrogen sulfide, amines, indoles, lower fatty acids, hydrocarbons, and aldehydes It is more harmful to the human body. [0003] Odor pollutants refer to all odor substances that stimulate the olfact...

AI Technical Summary

Problems solved by technology

Long-term repeated stimulation by foul-smelling substances can also cause olfactory fatigue and lead to loss of smell

[0004] The main deodorizing methods currently used are: 1. Sensory deodorization: using aromatic organic compounds, masking agents, animal and plant essential oils, etc. to deodorize by covering and covering, such as air fresheners, which cover odors by emitting aromas , does not decompose and remove harmful gases in the air, but "dilutes" the peculiar smell by confusing people's sense of smell, and the ingredients it contains may cause harm to the human body; 2. Physical deodorization: use absorption and adsorption to make The odorous gas in the air reacts with water or other chemical substances to form odorless molecules, or use porous media to adsorb odorous molecules to achieve deodorization effects, such as using water washing, organic solvent dissolution, etc., or using active The adsorption of carbon, zeolite, activated clay, etc. is only suitable for the treatment of low-concentration malodorous gases, and the deodorization effect is general, and the investment is high; The microbial film on the surface oxidizes the waste odor molecules and decomposes them into odorless simple inorganic substances to achieve the purpose of deodorization. It is currently the most economical and effective deodorization method. It can simultaneously treat waste gas containing multiple pollutants and is environmentally friendly. Hygienic, no secondary pollution, but it requires that the odorous substances to be removed have good water solubility and can be oxidized by microorganisms