Normal-pressure electro-desalting backwashing wastewater treatment device

Abstract

The invention belongs to the field ofwastewater treatment, and in particular to a normal-pressure electro-desalting backwashing wastewater treatment device which comprises a heat preservation buffer tank, a homogeneous discrete treatment pry, an ultrasonic synergistic circulating device, an ultrasonic multistage cavitation treatment device, a solid-liquid separation device, an inclined plate sedimentation device, a liquid-liquid separation device and an automatic control system; heat preservation treatment can be performed through the heat preservation buffer tank; the homogeneous discrete treatment skid can stirat a high speed to form a homogeneous material, and enable oil sludge interface separation to reachthe optimal temperature; the ultrasonic synergistic circulating device canensurethat material oil, water and mud are dispersed in different proportions and the COD content of the sewage is reduced by utilizing ultrasonic waves; the ultrasonic multistage cavitation treatment devicecan performearly-stage advanced treatment of solid-liquid separation to ensure COD indexes and separation effect, the solid-liquid separation device can performsolid-liquid separation, the inclined platesedimentation devicecan perform solid-phase settlement, and the liquid-liquid separation device can performseparation of oil, water and slag.

Description

technical field [0001] The invention relates to waste water treatment, in particular to an atmospheric pressure electric desalination backwash waste water treatment device. Background technique [0002] For example, the publication number CN203483970U is a solid-liquid separation device and a dredging system comprising the solid-liquid separation device, including a primary screen, a relay pool, a second screen, and a third screen; the primary screen, the second screen, and the third screen A frame and a slag outlet are respectively provided to discharge the separated solid matter; the primary screen is placed above the relay pool, so that the solid-liquid mixture passing through the primary screen falls into the relay pool; the relay pool is equipped with a pipeline pump , the outlet of the pipeline pump is placed above the second sieve through the pipeline; the second sieve is placed above the third sieve, so that the solid-liquid mixture in the relay pool is separated thr...

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Problems solved by technology

[0002] For example, the publication number CN203483970U is a solid-liquid separation device and a dredging system comprising the solid-liquid separation device, including a primary screen, a relay pool, a second screen, and a third screen; the primary screen, the second screen, and the third screen A frame and a slag outlet are respectively provided to discharge the separated solid matter; the primary screen is placed above the relay pool, so that the solid-liquid mixture passing through the primary screen falls into the relay pool; the relay pool is equipped with a pipeline pump , the outlet of the pipeline pump is placed above the second sieve through the pipeline; the second sieve is placed above the third sieve, so that the solid-liquid mixture in the relay pool is separated through the second sieve and the third sieve in turn; the sieve of the primary screen is larger than The sieve hole of the second sieve, the sieve hole of the second sieve is larger than the sieve hole of the third sieve; the shortcoming of this utility model is that the oil, water and slag in the waste water cannot be separated efficiently

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