Integrated oxygen-poor intermittent aeration domestic sewage treatment device

Abstract

The invention discloses an integrated oxygen-poor intermittent aeration domestic sewage treatment device, comprising a container, a cover body, a fan, a water inlet pipe, a water inlet siphon decanter, a siphon mud removal device, a drain siphon decanter and an aerator pipe. A vertical partition is arranged in the container to divide the container into two parts, namely a pretreatment tank and a biological reaction tank, and the water inlet pipe is communicated with the pretreatment tank. The water inlet siphon decanter supplies water from the pretreatment tank to the biological reaction tank, the siphon mud removal device is used for discharging mud from the biological reaction tank to the pretreatment tank, the drain siphon decanter is used for discharging water out of the container, the aerator pipe is arranged on the bottom of the biological reaction tank, and the aeration pipe is connected with the fan through an air pipe. The device of the invention is embedded under the ground, thereby being convenient for constant temperature and heat preservation and avoiding physical damage and unnecessary safe accidents; and the device has no overflow in rainy days, no germ spread in summer and no noise in operation, no secondary pollution such as odor and the like.

Description

technical field [0001] The invention relates to an integrated anoxic intermittent aeration domestic sewage treatment device for domestic sewage, which belongs to the technical field of sewage treatment and is mainly used for treating rural areas, scenic areas, dairy farms, high-rise buildings (hotels, commercial and residential buildings, apartments) ), villa areas, small towns, large ships and yachts and other point sources of domestic sewage for decentralized treatment of sewage treatment systems. Background technique [0002] Intermittent aeration activated sludge process (Sequencing Batch Reactor Activated Sludge Process, SBR) (or called sequencing batch activated sludge process) is a sewage treatment technology that operates intermittently, and has attracted widespread attention from all over the world in recent years. SBR is developed on the basis of ordinary activated sludge process. The core of the SBR process is the reaction tank, in which the sewage enters each re...

AI Technical Summary

Problems solved by technology

[0003] However, the traditional SBR method is generally used in urban domestic sewage treatment plants. It has a large scale, high manufacturing and operating costs, and high control system costs. It is open in the open and occupies a large surface area. It is not suitable for domestic sewage in rural areas and villa areas. Distributed treatment, especially cannot be applied to domestic sewage treatment with small flow of single households, several households, dozens of households or hundreds of households

The traditional SBR reaction tank integrates the functions of homogenization, primary sedimentation, biodegradation, and secondary sedimentation in one tank. There is no pretreatment tank, and its buffering capacity for impact loads on water quality and water volume is low, and there is no sludge discharge system. The activated sludge Easy to aging, the effect of biological phosphorus removal is not obvious

Images