Judging from the recent sales data, the number of orders received by Liding Environmental Protection for AAO process equipment remains high. What factors make customers trust this process more? Next, Liding Environmental Protection will introduce the essence of the AAO process.
The core of the AAO process is to use the nitrification and denitrification of organisms under different conditions to achieve nitrogen removal, and to use phosphorus-accumulating bacteria to remove phosphorus. Therefore, this process is more suitable for projects with strict control of nitrogen and phosphorus pollutants. The main functions of the rural domestic sewage treatment equipment of the AAO process are concentrated in three reaction modules, which are anaerobic pool, anoxic pool and aerobic pool.
In the anaerobic reaction area, due to the lack of nitrate and oxygen in the sewage of rural domestic sewage treatment equipment, phosphorus accumulating bacteria store energy in phosphorus-accumulating compounds and release phosphate radicals at the same time, while other bacteria basically do not work. In this reaction module Other bacteria are less active and difficult to grow. The anaerobic reaction module is used to reduce COD and prepare for phosphorus removal.
In the anoxic reaction module, the sewage of rural domestic sewage treatment equipment has a certain amount of nitrate without oxygen, and denitrifying bacteria use COD to reduce nitrate to nitrogen, release alkali, and obtain energy for growth. Reduce COD and nitrate nitrogen.
The aerobic reaction module is the core reaction area of rural domestic sewage treatment equipment. Here, nitrifying bacteria oxidize ammonia nitrogen to nitrate nitrogen, consume alkalinity and oxygen, PAOs absorb a large amount of phosphorus, use the energy in PHAs to synthesize polyphosphorus, and OHOs continue to remove COD, PAOs, OHOs, and nitrifying bacteria are all grown in this process. Reduce COD, ammonia nitrogen and phosphorus.
From the demand analysis of rural domestic sewage treatment projects, the selection of sewage treatment process should meet the requirements of treatment scale, sewage characteristics, effluent water quality and discharge water body. At the same time, the appropriate treatment process should be selected according to the characteristics of local sewage. Many cases show that AAO rural sewage treatment equipment has good adaptability to different types of projects.
Post time: Jul-06-2023