NEWS
News
Some knowledge points of wet anaerobic
发布时间:2022-08-12 13:27
wet anaerobicThe manufacturer thinksAnaerobic fermentation is a bacterial fermentation process under anaerobic conditions and is the main source of renewable energy. Biogas can be used for biogas boiler, biogas power generation and biogas upgrading. The purified biogas can be used as automobile fuel, industrial gas or urban gas, so as to reduce the consumption of fossil energy and protect the environment. Wet anaerobic fermentation technology means that the total solid content is less15% of organic waste anaerobic digestion technology. It is widely used in kitchen waste, kitchen waste and waste, sanitation waste, urban organic domestic waste, livestock and poultry waste, agricultural products and agricultural products processing organic waste, and industrial organic waste (distiller's grains, dregs, etc.).
wet anaerobicThe manufacturer thinksAnaerobic fermentation is a treatment technology that uses facultative bacteria and anaerobic bacteria to carry out biochemical reactions to decompose organic matter in organic waste. Anaerobic fermentation is a multi-stage biochemical reaction process involving a variety of bacteria. In each reaction stage, a certain type of bacteria predominates, and the product is used by the bacteria in the next stage. The chemistry, biochemistry and microbiology of anaerobic degradation processes are quite complex.
wet anaerobicThe manufacturer thinksThe solid content of regular anaerobic fermentation material is only3-5%, resulting in large equipment volume, high investment in fixed assets, high anaerobic energy consumption. The biogas produced by anaerobic fermentation often has little left after encountering its own heat energy, which makes the energy recovery advantage of anaerobic fermentation not obvious. Therefore, the high solid content (feed solid content 8-15%) anaerobic fermentation technology can solve the above-mentioned defects of regular anaerobic fermentation to a certain extent.
wet anaerobicThe manufacturer thinksCharacteristics of anaerobic fermentation with high solid content:
1. The solid content of the feed is greater than 8%, and the gas production rate is greatly improved;
2. Increase the organic volume load of the anaerobic fermentation tank;
3. The buffer capacity of the anaerobic fermentation tank is improved, the system is more stable, and it is convenient for operation and management;
4. The reactor volume is reduced, saving floor space;
5. Reduce the heating energy consumption of anaerobic tank materials and save operating costs;
6. reduce investment in fixed assets;
wet anaerobicThe manufacturer thinksThe above obvious advantages make the high solid content anaerobic digestion technology have broad application prospects. In recent years, high solid content anaerobic fermentation technology has been widely used in the treatment and disposal of organic wastes such as food waste, livestock and poultry manure, and municipal sludge.
wet anaerobicThe manufacturer thinksTwo-phase anaerobic fermentation technology emerged with the study of anaerobic digestion mechanism and the development of anaerobic microbiology. The two-phase anaerobic fermentation technology is to place acid-producing bacteria and methanogens in two series reactors, and provide them with the appropriate growth and metabolic conditions, so as to avoid the mutual interference between different populations of organisms and the suppression caused by the unbalanced transformation of metabolites, so that they can play their respective activities. Two-phase anaerobic digestion technology not only helps to give full play to their respective activities, but also improves the treatment effect, so as to improve the volume load rate, reduce the reaction volume and increase the operation stability.