What Is Aerobic Fermentation?

Fermentation refers to the process by which people use the life activities of microorganisms under aerobic or anaerobic conditions to prepare microbial cells themselves, or direct metabolites or secondary metabolites. Fermentation is sometimes written as leaven, and its definition varies depending on the application. Generally speaking, fermentation refers to a certain decomposition process of organisms to organic matter. Fermentation is a biochemical reaction that humans came into contact with earlier. It is now widely used in the food industry, biological and chemical industries. It is also the basic process of biological engineering, namely fermentation engineering. Research on its mechanism and process control is continuing.

1. Refers to the reducing power [H] produced by substrate dehydrogenation under the conditions of anaerobic and exogenous hydrogen receptors, which are directly transferred to an endogenous intermediate metabolite without being passed through the respiratory chain to achieve the end A class of biooxidation reactions at the level of phosphorylation at the chemical level.

2. To express that something has changed due to external forces.

Boiling is the carbon dioxide produced by the degradation of sugars in the leachate under hypoxic conditions

"Fermentation" originally meant a mildly foaming or boiling state. Fermentation has long been recognized, but understanding its nature has been something that has been happening for nearly 200 years.

Complex organic compounds in

The biggest difference between fermentation and other chemical industries is that it is

The process of the fermentation reaction varies according to the utilization of different sugars and the production of the product. Following with

According to the characteristics of fermentation and

For any type of fermentation (except for some transformation processes). A certain fermentation process consists of 6 parts:

the composition of the strain and the determined seed medium and fermentation medium;

Fire bacteria in culture medium, fermentation tank and auxiliary equipment;

Large-scale production of active, pure-bred seed cultures;

Production under optimal growth conditions of microorganisms in fermentation tanks: large-scale production of materials;

Product extraction and purification;

Treatment of fermentation waste liquid.

Therefore, there is a need for continuous research to gradually improve the efficiency of the entire fermentation process. For example, before a fermentation process is established, production strains must be isolated and modified to synthesize daily standard products. And its output should have economic value; the needs of microorganisms in culture should be determined, and the corresponding equipment should be designed; at the same time, the method of product isolation and extraction must be determined.

In addition, the entire research plan should include continuous optimization of microbial species, culture media, and extraction methods during the fermentation process.

Solid state fermentation

Traditionally, people use solid state fermentation to produce

The BTA process can be widely used to treat domestic waste, commercial waste, agricultural waste

BTA multi-stage fermentation system-treatment of waste

Biowaste (organic matter in waste) in refuse and municipal solid waste. Through the BTA process, waste can be converted into high-quality biogas (Biogas) and organic fertilizer (Compost), which in turn can generate electricity and generate thermal energy. When using the BTA process for waste treatment, the water used is basically the circulating water generated during the production process. The excess water can be directly used for agricultural irrigation or further sewage cleaning treatment.

More commonly used is the BTA single-stage fermentation system. The fermentation of garbage slurry is completed in a single mixed fermentation reaction tank. Considering the cost of investment and operation, existing fermentation equipment (such as fermentation tanks in sewage treatment plants and agricultural biogas plants) can be directly transformed and utilized. The BTA single-stage fermentation system can be completely applied to the existing waste treatment plants to expand output. If you want to handle kitchen waste, it is necessary to add some BTA sterilization facilities.

There is also a BTA multi-stage fermentation system, most of which are used in plants with an annual processing capacity of more than 50,000 tons. In the BTA multi-stage fermentation system, the waste slurry is separated into solid matter and liquid matter by dehydration. The liquid phase contains soluble organic ingredients and can be pumped directly into an anaerobic fermentation tank (methane reactor). After the dehydrated solid residue still contains undissolved organic components, it can be mixed with water again into the hydrolysis reactor. After about 4 days, these suspensions are dehydrated again, and the liquid part is injected into the fermentation. Tank (methane reactor). Through the degradation process in different reactors (acidification, hydrolysis and methane), the BTA multi-stage fermentation system creates the optimal growth conditions for microorganisms and accelerates the rate of biological degradation. It only takes a few days to make 60% -80% Of organic matter into methane gas.