Integral Orbal oxidation ditch combination type aeration system

Abstract

An integral Orbal oxidation ditch combination type aeration system comprises a surface plug flow aerator having an integral surface for sewage plug flow and aeration, and at least one aeration grid device arranged below water. The aeration grid device is connected with a fan through a pipe. The aeration grid device comprises an air pipe, the air pipe is vertically arranged, the upper end of the air pipe is provided with a bent pipe, a flange is arranged at the front end of the bent pipe, and the lower end of the air pipe is provided with an aeration grid horizontally arranged. The aeration grid comprises air branch pipes and a plurality of aeration pipes arranged in parallel, the air branch pipes are welded and communicated with the aeration pipes, and aeration air holes are arranged on the pipe walls of the aeration pipes. The aeration system combines blast aeration equipment and the surface plug flow aerator. The blast aeration equipment used for concentrated air supply and bottom aeration has high aeration efficiency and excellent oxygen supply effect. The surface plug flow aerator performs plug flow functions. The starting number of surface plug flow aerators is reasonably adjusted according to actual conditions, energy waste is avoided, power is saved, and device installation and maintenance are convenient.

Description

technical field [0001] The invention relates to sewage treatment facilities, in particular to an integrated Aubert oxidation ditch combined aeration system used in the urban sewage treatment industry. [0002] Background technique [0003] At present, the treatment processes applied in sewage treatment plants can be divided into two categories: activated sludge method and contact oxidation method, and aeration and oxygenation are the core technology of all these processes and are an indispensable process. At the same time, aeration equipment is also the equipment with the highest energy consumption in the sewage aerobic biological treatment system, and its energy consumption accounts for 60-70% of the total energy consumption of the activated sludge process sewage plant. The performance of the aeration equipment directly affects the effect of sewage treatment, and also affects the operating cost of the sewage plant. [0004] The key to ensuring the effect of aeration and o...

AI Technical Summary

Problems solved by technology

Blast aeration system equipment is very complex, power consumption is large, and accidents such as blockage are prone to occur. When there is an accident such as blockage to repair the equipment, it is necessary to stop the system and then pump out all the water in the aeration tank. This maintenance method is time-consuming and laborious, which increases the maintenance cost and makes management and maintenance very inconvenient

Mechanical aeration is also called surface aeration. In the mechanical aeration system, brush aeration is a widely used aeration form in oxidation ditch. It has the advantages of simple structure, convenient installation and maintenance, and simple mechanical equipment. The adjustment range of the oxygen amount is small, and dead angles are prone to appear in the pool, and the precipitation phenomenon is serious

Images