30 results about "Extended aeration" patented technology

The invention provides an aeration device; the aeration device comprises an aeration head and an aeration connecting part, wherein the aeration connecting part is connected with an external aeration pipe; the aeration head comprises a main body part, a bottom bracket and a first joint part; the first joint part is combined with the aeration connecting part; an aeration micro-hole is arranged on the main body part; and the aeration connecting part comprises a second joint part combined with the first joint part and a connection part connected with the external aeration pipe. The aeration device disclosed by the invention is simple and steady in structure, steady to operate and high in aeration efficiency; oxygen conveyed by the external aeration pipe enters the main body part of the aeration head through the aeration connecting part and then enters sewage through the aeration micro-hole; by means of the opposite acting force generated when oxygen rushes out of the micro-hole, the aeration device vibrates slightly; therefore, the micro-hole is prevented from being blocked; and the service life of the aeration device is prolonged.

The invention discloses an underwater aerator cleaning car based on visual sensors. The underwater aerator cleaning car comprises a movable car, a clamp for clamping an aerator and a cleaning brush for cleaning the aerator, wherein the clamp is fixed on an end cover; the cleaning brush is positioned below the end cover; the clamp is connected with a cleaning motor which is used for driving a rotary table to rotate; the end cover is connected with a lifting mechanism which is used for driving the end cover and the clamp to move up and down; visual sensors used for video measurement of the deviation between the aerator and the clamp are mounted on the end cover; visual sensors used for video measurement of the aerator position are mounted on the cleaning brush; the two groups of visual sensors are both connected with a microprocessor; the microprocessor comprises an image data reading module, a virtual outline custom module, an edge detection module and a detection and control module. The underwater aerator cleaning car is convenient to operate and has the advantages that the service life of the aerator is prolonged, and the wastewater treatment cost is reduced.

A novel lagoon aeration treatment system is provided which can be used with existing or new wastewater lagoons to increase the lagoon's treatment efficiency and capacity, and to allow for a continuous, year round discharge of treated wastewater to the environment. The system can be operated in warm and cold climates for treatment of municipal and industrial wastewaters of varying strength and flow rates in a secondary activated sludge treatment process, a tertiary activated sludge treatment process, or an extended aeration treatment process. The system employs an outside aeration system consisting of a wastewater pump and an air aspirator-mixer to provide wastewater aeration outside the lagoon and a pipe system placed inside the lagoon to provide a recirculation of aerated and non-aerated wastewater and sludge between the lagoon and the outside aeration system for re-aeration and return to the lagoon in a continuous or interment manner to accomplish a desired treatment level and efficiency and operating costs.

The invention relates to the technical field of wastewater treatment, in particular to an environmental-friendly multi-stage wastewater treatment device for municipal engineering, comprising an annular tank, wherein a plurality of sheaves are rotatably connected to the bottom end of the annular inner sidewall of the annular tank at an equiangular angle. An aeration mechanism is rotatably connected between each of the sheaves, the aeration mechanism includes an annular pipe, and a connecting pipe is fixedly connected between two sides of the annular inner side wall of the annular pipe. In the present invention, through the arrangement of the aeration pipe, the air hole and the sealing plate, the external air pump supplies air to the aeration pipe through the air inlet pipe, and the gas is ejected from the air hole by the top opening of the sealing plate, and drives the aeration pipe to rotate to the other side, so that the The aeration mechanism rotates, and the rotation of the aeration mechanism drives the sewage in the annular tank to rotate. When the aeration is stopped, the aeration pipe loses power, and the water body rotates to push the sealing plate, so that the sealing plate re-closes the air holes to prevent sewage from entering through the air holes. In the aeration pipe, so as to avoid the blockage of the air holes and prolong the service life and maintenance cycle of the aeration pipe.

A multi-stage aeration device comprising at least two vertically oriented aeration modules is provided. Each aeration module defines a vertically extending aeration chamber with a top inlet and a bottom outlet. The bottom outlet of each aeration module feeds a fluid stream including liquid and gas into the top inlet of the aeration module below that aeration module. Each aeration module has an aeration head connected to the top inlet such that the fluid flow entering the aeration chamber through the top inlet must pass through the aeration head, which utilizes all the The gas in the fluid stream aerates the liquid.

A non-powered rapid aerobic rural domestic sewage treatment device and treatment method, including an anaerobic unit and an aerobic aerobic unit, the aerobic aerobic unit includes a gravity aeration system and an aerobic reaction system, and the gravity aeration system includes an overturnable Water bucket, piston assembly, suction pipe, air guide pipe and aeration head. The sewage discharged from the anaerobic unit is discharged into the overturnable water bucket from above the overturnable water bucket. The piston assembly is connected, the aerator head is connected with the air duct, and the aerator head is located in the aerobic reaction system. Before the water storage in the overturnable water bucket reaches the preset water volume, the piston is squeezed to discharge the air. When the overturnable water bucket After the water storage reaches the preset water volume, the stored sewage is discharged by overturning, and the piston returns. The aeration speed of the device is fast, the contact time between the gas and the sewage is greatly prolonged, and the aeration efficiency is obviously improved. At the same time, the device has a simple structure and a small volume, and is convenient for popularization and application.