Coupled carbon-based membrane biological reaction device and method for water drainage of sewage draining exit entering river

Abstract

The invention discloses a coupled carbon-based membrane biological reaction device and method for water drainage of a sewage draining exit entering a river. The device comprises a main body unit and an overrunning unit which are located in a tank body; a sewage draining exit is formed in the side wall of the tank body at the water inlet end of the main body unit, and an external blow-off pipe discharges sewage into the main body unit through the sewage draining exit; an overflow weir is arranged at the water outlet end of the main body unit, and the overrunning unit is arranged at the other end of the overflow weir; the overflow weir completely separates the main body unit from the overrunning unit; the main body unit comprises a filler module, an aeration device, an MBR membrane assemblyand a suction pump; and the overrunning unit comprises a sewage interception hanging basket and a permeation module. According to the invention, high-efficiency treatment can be carried out on water of different amounts and qualities discharged into a river mouth, drainage of a rain-sewage mixed drainage port is completely treated by the main body unit in a dry season, and when the water yield islarge and the water quality is good in a wet season, the water exceeding the treatment capacity of the main body unit flows to the overrunning unit through the overflow weir, is primarily filtered andadsorbed by the permeable material and is discharged into a riverway, and river water quality improvement and ecological restoration are ensured to the maximum extent.

Description

technical field [0001] The invention relates to a coupled carbon-based membrane biological reaction device and a method thereof for drainage from sewage outlets entering rivers, and belongs to the technical field of sewage treatment and water body environment treatment. Background technique [0002] With the continuous development of the economy and the continuous growth of the urban population, the pollution produced by point sources, urban and rural non-point sources, and water body sediments far exceeds the self-purification capacity of the water body, resulting in the ubiquity of black and odorous water bodies in urban rivers. The main reason is that the city's onshore sewage interception pipe network is not perfect, and there are phenomena of sewage leakage in sunny days and pollution overflowing into rivers in rainy days. [0003] The sewage outlet into the river is the outlet of the urban drainage pipeline to collect the runoff of rainwater and sewage, and it is also ...

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Problems solved by technology

[0004] The treatment methods for river sewage outlets mainly include bypass purification system, flower bed type purification tank, sewage outlet purification tank, in-situ purification corridor, etc. The current purification system generally has the characteristics of low treatment capacity and deviation of effluent quality, especially for water quality This problem is more prominent for receiving water bodies with better and higher requirements. In addition, the water quality and quantity of sewage outlets in rivers vary greatly between wet and dry seasons, which puts forward higher requirements for the adaptability of the treatment system.

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