Sewage treatment: biological treatment biological treatment: by microbial metabolism, the waste water in the form of a solution, colloidal suspension and fine organic pollutants into stable and harmless substances in waste water treatment method. Depending on the action of microorganisms, biological treatment can be divided into aerobic biological treatment and anaerobic biological treatment of two types. Biological wastewater treatment is widely used aerobic biological treatment, according to the traditional aerobic biological treatment is divided into two types of activated sludge and biofilm. Activated sludge process itself is a processing unit, which run a variety of ways. It belongs biofilm treatment equipment biological filter, rotating biological contactors, biological contact oxidation pond and recently developed biological fluidized bed. Biological oxidation pond method, also known as natural biological treatment. Anaerobic biological treatment method, also known as bio-reduction treatment, Huaihua sewage, mainly used for treating high concentration organic wastewater and sludge. Processing equipment used primarily for digester. Biological Contact Oxidation: Process wastewater by biological contact oxidation method, which uses biological oxidation process in a bioreactor tanks filled with a filler, already oxygenated water immersion all filler, and to a certain flow rate flows through the filler. Covered with a biofilm on the packing, the integration of sewage treatment process, waste water and biofilm extensive contacts, the role of the biofilm microbial metabolism of organic pollutants in sewage get removed, community sewage treatment works, sewage purification . Finally, the treated wastewater discharged into the biological contact oxidation treatment systems for processing sewage mixed with life, discharge after chlorine disinfection. Biological contact oxidation process is a range of biofilm activated sludge process and biological filter between, which is characterized by setting a filler in the pool, the bottom aeration of sewage oxygenation, and the body of water in the pool flows state, in order to ensure the same submerged in sewage water filler full contact, avoid biological contact oxidation pool for water in contact with the filler uneven defect, this appellation aeration aerator. Guangzhou Fu students Environmental Accor new Electronics (Dongguan) Co., Ltd. sewage treatment works (1800m3 / d): sewage treatment equipment to remove organic pollutants and ammonia nitrogen depends on the device AO biological treatment process. Which works at A-level, sewage treatment process, waste water due to the high concentration of organic matter, microorganisms in a hypoxic state, this time for the microbes and micro-organisms, so A pool only has a certain level of organics removal function, reduce the subsequent good organic load oxygen tank, reduce the concentration of organic matter, but there is still a certain amount of organic matter and high NH3-N exists. In order to further oxidation and decomposition of organic matter, while at carbonization nitrification can proceed smoothly, set a lower organic load of aerobic biological contact oxidation pond at O ??level. O level in the main pool for aerobic microorganisms and bacteria from oxygen (denitrifying bacteria). Which aerobic microorganisms to decompose organic matter into C02 and H20; autotrophic bacteria (denitrifying bacteria) the use of organic matter decomposition of inorganic carbon or C02 in the air as a nutrient source, sewage NH3-N is converted to NO-2-N . NO-3-N, 0 级 pool of water back to the A-level pool, the A-level pool provides the electron acceptor by denitrification eventual elimination of nitrogen pollution. Guangzhou-Foshan, Shunde Xingtan students environmental municipal wastewater treatment works (36000m3 / d): Huaihua sewage students _ _ rich wastewater treatment process integration provided by the Environmental Protection Engineering Co., Ltd. Guangzhou Fu students. Huaihua sewage students _ _ rich integration sewage treatment process is rich students in Guangzhou Environmental Protection Engineering Co., Ltd. (www.fushengyuan.com) this year introduced a new upgrade, the above picture is for reference only, please call the contact or pictures on this page phone, for the latest information, contact: Hu Wei.