Anaerobic-aerobic composite bed biofilm reactor and process thereof

Abstract

The invention discloses an anaerobic-aerobic composite bed biofilm reactor and a process thereof. The anaerobic-aerobic composite bed biofilm reactor comprises a reactor tank, the reactor tank is pre-buried in backfill soil, and the bottom of the reactor tank is provided with a fine sand basic layer and a concrete basic layer; the interior of the reactor tank is divided into an anoxic zone, an anaerobic zone, an aerobic zone, a sedimentation zone and a filtration disinfection zone, and an aeration system and an electronic control system are arranged for cooperation. Different proportions of MBBR biosuspension fillers are added in the anoxic zone, anaerobic zone and aerobic zone to increase the biomass and biological species in the reactor, thereby improving the treatment efficiency of thereactor. The reactor tank is designed to be buried in the ground, thereby solving the problem that the water quality is not up to standard due to low water temperature and low biochemical efficiency after high-concentration sewage such as sewage produced during slaughtering and breeding in northern winter are processed. The anaerobic-aerobic composite bed biofilm reactor has good denitrification capacity and organic matter removal effect, the interior of the reactor does not need to install a filler bracket, and the reactor is easy to maintain, and can save investment and land occupation.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an anaerobic-aerobic composite bed biofilm reactor and a process thereof. Background technique [0002] In view of the problem of high-concentration sewage such as slaughtering and breeding in winter in the north, the water quality is not up to standard due to low water temperature and low biochemical efficiency. At present, the commonly used treatment equipment mostly adopts reactors or cement pool sewage equipment made of carbon steel. The common problem of this equipment is that corrosion and water leakage will occur within two or three years. [0003] Secondly, the anoxic zone in the traditional equipment reactor is mostly set with suspended elastic filler or combined filler, which is fixed on the steel filler bracket in the tank. The problem is that the film is slow and the debugging time is long. It is easy to rust and collapse, and the packing is easy to break. T...

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Problems solved by technology

[0005] The purpose of the present invention is to provide an anaerobic-aerobic composite bed biofilm reactor and its technology, which has good denitrification ability and organic matter removal effect, and there is no need to set packing brackets in the reactor, which is easy to maintain and manage, and can save The investment and floor area have solved the problems of high-concentration sewage such as slaughtering and breeding in winter in the north, and the water quality is not up to standard due to low water temperature and low biochemical efficiency.

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