Garbage leachate automatic control mechanical aeration stirring intermittent reaction tank

Abstract

The invention discloses an aerated stirring intermittent reaction tank of a landfill leachate automatic control machine, relating to a landfill leachate biological carbon and nitrogen removal process. The aerated stirring intermittent reaction tank comprises a water inlet pipe 1, a water feed pump 2, a reaction zone 3, a settling zone 4, a water outlet pipe 5, a tank body 6, a sludge discharge blow-down pipe 7, an adjustable-speed motor 8, a speed regulator 9, a motor time controller 10, a pump time controller 11, a supporting seat 12, a shaft coupling 13, a transmission shaft 14, a perforated pipe 15, an impeller 16, a water channel 17 and a scum blocking tee 18. The pump time controller 11 controls the water feed pump 2 to periodically feed water into the reaction zone 3 through the water inlet pipe 1, the water of the reaction zone 3 enters the settling zone 4 through the water channel 17, and the purified water of the settling zone 4 passes through the scum blocking tee 18 and then is discharged through the water outlet pipe 5. The motor time controller 10 controls the speed regulator 9 to drive the adjustable-speed motor 8 which drives the impeller 16 to pump aerated water in the perforated pipe 15 into the reaction zone 3 for aeration and stirring. The sludge discharge blow-down pipe 7 discharges remaining sludge and empties air. The bottom of the scum blocking tee 18 should be above a sludge settling surface and below a scum layer. In one period, the pump output of the water feed pump 2 shall not influence the effluent quality of the water outlet pipe 5; and in one period, the adjustable-speed motor 8 may be operated once or for multiple times. The pump time controller 11 can set an operational cycle, the motor time controller 10 and the speed regulator 9 can regulate the rotating speed of the impeller 16, and the operation adjustability is good.

Description

Technical field: [0001] The invention belongs to the field of landfill leachate biological carbon removal and denitrification technology, in particular to a landfill leachate automatic control mechanical aeration stirring intermittent reaction tank, a pump timer controller controls the inlet pump to periodically feed the reaction tank intermittently with water; a motor timer controller And the governor controls the opening and closing and the speed of the speed-regulating motor. When the speed-regulating motor is running, it drives the impeller to rotate and suck the gas and water in the perforated tube, so as to supply gas and stir to the reaction area; the different speeds of the speed-regulating motor adapt to different dissolved oxygen requirements, and adapt to the biochemical environment required by the reaction tank. The concentration of landfill leachate is very high, and the complete reaction type is conducive to the rapid homogenization of high-concentration liquid i...

AI Technical Summary

Problems solved by technology

In addition, the landfill leachate treatment process with insufficient carbon sources is often equipped with second-generation and third-generation anaerobic reactor processes such as UASB that removes carbon but does not denitrify, which further leads to insufficient carbon sources.

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