Cases
客户案例
2021-01-19
Anaerobic biological treatment of wastewater is an important technology in environmental engineering and energy engineering. It is one of the powerful treatment methods for organic wastewater. In the past, it was mostly used for sludge, organic waste and some high-concentration organic wastewater from municipal sewage plants. In the form of buildings, ordinary digestion tanks are mainly used in the form of buildings. Due to the shortcomings of long hydraulic retention time and low organic load, its application in wastewater treatment has been limited for a long time. Since the 1970s, the world's energy shortage has been increasing. Outstandingly, the anaerobic wastewater anaerobic technology that can produce energy has received attention, research and practice have been deepened, various new processes and equipment have been developed, and the amount of activated sludge in the anaerobic reactor has been greatly increased, and the treatment time has been greatly increased. Compared with aerobic biochemical method, anaerobic biochemical method has the following advantages: wide application range, low energy consumption, high load, less residual sludge, less nutrient requirement of nitrogen and phosphorus, and anaerobic treatment process. A certain sterilization effect can kill parasites and viruses in wastewater and sewage. Anaerobic activated sludge can be stored for a long time, and anaerobic reactors can be operated seasonally or intermittently.