CN-118084121-B - Wastewater treatment device

CN118084121BCN 118084121 BCN118084121 BCN 118084121BCN-118084121-B

Abstract

The application provides a wastewater treatment device, and belongs to the technical field of wastewater treatment. The waste water treatment device comprises a box body, a collecting mechanism and a treatment structure, wherein the treatment structure is used for oxidizing waste water and is communicated with the air floatation region, so that the oxidized waste water enters the air floatation region and is subjected to solid-liquid separation, the separating mechanism is arranged on the separating region, a sludge discharge opening is arranged on the box body, so that the waste water which is air-floated to the separating region is separated by the separating mechanism, part of mixed flocs deposit and fall into the sludge discharge opening to be discharged, and a flocculation decomposition component and a collection component which are sequentially communicated with the sludge discharge opening are arranged, so that the catalyst in the mixed flocs is captured and collected by the collection component after the mixed flocs in the sludge discharge opening are subjected to flocculation decomposition by the flocculation decomposition component. Therefore, in the wastewater treatment process, the catalyst in the treatment structure can be separated and recovered through the collecting mechanism, so that the catalyst can be recycled.

Inventors

WANG JIAQI
WANG DIANCHANG
CHEN YASONG
LIU MENGMENG
WANG ZILIN
ZHAO YUNPENG
YU HAITAO
ZHOU XILE
YANG MINGMING
LI LI

Assignees

中国长江三峡集团有限公司

Dates

Publication Date: 20260505
Application Date: 20240401

Claims (8)

1. The wastewater treatment device is characterized by comprising a box body, a collection mechanism and at least one treatment structure, wherein the collection mechanism and the at least one treatment structure are arranged on the box body, and the treatment structure comprises a Fenton reaction mechanism and an air floatation mechanism; the Fenton reaction mechanism and the air floatation mechanism are both communicated with the box body, an air floatation area and a separation area which are mutually communicated are arranged in the box body, and the Fenton reaction mechanism is used for oxidizing wastewater and conveying the oxidized wastewater to the air floatation area; The air flotation mechanism is partially positioned in the air flotation zone and is used for generating micro-nano bubbles which are used for carrying out solid-liquid separation on the wastewater in the air flotation zone; A separation mechanism is arranged in the separation zone and is used for separating mixed flocs in the wastewater entering the separation zone; The box body is provided with at least one sludge discharge port communicated with the separation area, and the sludge discharge port is used for discharging the precipitated mixed flocs; The collecting mechanism comprises a flocculation decomposition component and a collecting component which are communicated in sequence, the flocculation decomposition component is communicated with the mud discharge port, and the collecting component is configured to capture and collect the catalyst in the mixed flocs after the Jie Xu component is used for deflocculating the mixed flocs; the micro-nano air bubble generation device comprises a box body, a water inlet, a water outlet, a water inlet and a water outlet, wherein a clear water area is arranged in the box body, the separation area is positioned between the air flotation area and the clear water area, a liquid inlet and a water outlet of the air flotation mechanism are both communicated with the clear water area, the liquid outlet is provided with at least one output section, the output section stretches into the air flotation area, and micro-nano air bubbles enter the air flotation area from the liquid outlet through the output section, wherein the liquid inlet of the air flotation mechanism sucks water in the clear water area to generate micro-nano air bubbles; the flocculation removal assembly comprises a flocculation removal machine and a sludge collection tank, and the collection assembly comprises a magnetic drum, a scraping plate and a catalyst collection hopper; The inlet of the de-flocculation machine is communicated with the sludge discharge port, the magnetic drum is rotatably arranged on the outlet of the de-flocculation machine, the sludge collecting tank is arranged between the outlet and the magnetic drum and is used for collecting sludge in the mixed flocs, and the magnetic drum is used for capturing the catalyst; The catalyst collecting hopper is provided with an opening, one end of the scraping plate is arranged on the opening, and the other end of the scraping plate is in contact with the magnetic drum so that the catalyst falls into the catalyst collecting hopper through the scraping plate; the device also comprises a release mechanism, wherein the release mechanism comprises a motion control piece, a monitoring and adjusting component and a micro-nano bubble releaser; the monitoring and adjusting assembly comprises a telescopic piece, a rotating piece and an image collector, wherein the telescopic piece, the rotating piece and the image collector are electrically connected with the motion control piece; The telescopic piece, the rotary piece and the micro-nano bubble releaser are sequentially communicated, one end of the telescopic piece, which is away from the rotary piece, is correspondingly communicated with the output section, and the micro-nano bubbles are released by the micro-nano bubble releaser after passing through the output section, the telescopic piece and the rotary piece; The image collector is arranged above the air floatation area to collect the rising speed of the micro-nano bubbles; and the motion control piece is configured to control the telescopic piece to stretch or rotate relative to the output section or control the rotating piece to rotate when the rising speed is smaller than a preset rising speed, so that the micro-nano bubbles rise at different positions of the air floatation area.
2. The wastewater treatment apparatus according to claim 1, wherein, A separation plate is arranged between the clear water area and the separation area, and one side of the separation plate, which faces the separation area, is provided with an overflow weir which is used for receiving part of the wastewater separated by the separation mechanism; A guide plate is arranged between the separation area and the air floatation area, a water inlet is arranged on the side wall of the air floatation area opposite to the guide plate, and the water inlet is used for communicating the air floatation area with the Fenton reaction mechanism; The separating mechanism is arranged above the separating area, a sludge hopper is arranged at the bottom of the separating area, and the sludge discharge opening is positioned on the sludge hopper.
3. The wastewater treatment apparatus of claim 2, wherein the air flotation mechanism comprises a gas-liquid mixing pump, an air pump, a flow monitoring member, and a flow control member; the liquid inlet and the liquid outlet are both arranged on the gas-liquid mixing pump, and the gas-liquid mixing pump is communicated with the air pump; The flow monitoring piece and the gas-liquid mixing pump are electrically connected with the flow control piece, the flow monitoring piece is arranged on the liquid outlet, and the flow monitoring piece is used for monitoring the bubble generation amount of the liquid outlet; the flow control member is configured to control an increase in the liquid inlet amount of the liquid inlet when the bubble generation amount is smaller than a preset bubble generation amount.
4. The wastewater treatment apparatus of claim 2, wherein the separation mechanism comprises a slag scraper and a slag chute, the slag scraper is disposed above the separation zone, the slag chute is disposed below the slag scraper, and the slag chute is adjacent to the overflow weir.
5. The wastewater treatment apparatus of any one of claims 1-4, wherein the Fenton reaction mechanism comprises a reactor body, a plurality of reagent dosing ports, and a regulating assembly; The reactor main body comprises a first mixing pipe section, a second mixing pipe section and a third mixing pipe section which are arranged at intervals, and the first mixing pipe section, the second mixing pipe section and the third mixing pipe section are communicated through a reaction pipe section; static mixing elements are arranged on the first mixing pipe section, the second mixing pipe section and the third mixing pipe section, and the medicament adding port is respectively arranged on the first mixing pipe section and the second mixing pipe section; The adjusting component comprises an alkali liquor adding port, a coagulant adding port and a flocculant adding port, and the alkali liquor adding port, the coagulant adding port and the flocculant adding port are sequentially arranged on the third mixing pipe section.
6. The wastewater treatment apparatus of claim 5, further comprising an ultraviolet assembly comprising at least two first ultraviolet lamps, at least one second ultraviolet lamp, and at least one quartz protective tube; The two first ultraviolet lamps are respectively arranged on the opposite side walls of the air floatation area; The quartz protection tube is sleeved in the reaction tube section between the second mixing tube section and the third mixing tube section, and the second ultraviolet lamp is positioned in the quartz protection tube.
7. The wastewater treatment device of claim 5, further comprising at least one micro-nano bubble dissolved air water addition port disposed at an end of the second mixing tube section facing the third mixing tube section.
8. The wastewater treatment apparatus of claim 5, further comprising a pressure monitoring assembly comprising a pressure gauge and a safety valve, the pressure gauge and the safety valve being spaced apart at an end of the first mixing tube section facing the reaction tube section.

Description

Wastewater treatment device Technical Field The application relates to the technical field of wastewater treatment, in particular to a wastewater treatment device. Background The industrial wastewater in the industries of printing and dyeing, papermaking, chemical industry, pharmacy and the like has the characteristics of large water quantity, high concentration, strong toxicity and poor biodegradability, and the Fenton technology, the adsorption technology and the air floatation technology are generally adopted to treat the industrial wastewater with higher concentration. In the related technology, the wastewater treatment device comprises a micro-nano bubble generator, a steam heater and a high-temperature reaction kettle containing various medicaments and catalysts, wherein wastewater in a bubble making tank is extracted through the micro-nano bubble generator to generate wastewater filled with micro-nano bubbles, the wastewater is pumped into the bubble making tank again to form circulation, the wastewater in the bubble making tank is pumped into the steam heater, heated and sprayed into the high-temperature reaction kettle through a micro-nano bubble nozzle for advanced treatment, and effluent of the high-temperature reaction kettle enters a flocculation precipitator to realize pollutant removal on the wastewater through flocculation precipitation. However, the catalyst in the above-described wastewater treatment apparatus is difficult to separate and reuse. Disclosure of Invention The application provides a wastewater treatment device, which is used for solving the problem that a catalyst in the wastewater treatment device is difficult to separate and recycle in the prior art. In order to achieve the above object, the embodiment of the present application provides the following technical solutions: the application provides a wastewater treatment device, which comprises a box body, a collection mechanism and at least one treatment structure, wherein the collection mechanism and the at least one treatment structure are arranged on the box body, and the treatment structure comprises a Fenton reaction mechanism and an air floatation mechanism; the Fenton reaction mechanism and the air floatation mechanism are both communicated with the box body, an air floatation area and a separation area which are mutually communicated are arranged in the box body, and the Fenton reaction mechanism is used for oxidizing wastewater and conveying the oxidized wastewater to the air floatation area; The air flotation mechanism is partially positioned in the air flotation zone and is used for generating micro-nano bubbles which are used for carrying out solid-liquid separation on the wastewater in the air flotation zone; A separation mechanism is arranged in the separation zone and is used for separating mixed flocs in the wastewater entering the separation zone; The box body is provided with at least one sludge discharge port communicated with the separation area, and the sludge discharge port is used for discharging the precipitated mixed flocs; The collection mechanism comprises a flocculation-removing component and a collection component which are communicated in sequence, the flocculation-removing component is communicated with the sludge discharge port, and the collection component is configured to capture and collect the catalyst in the mixed flocs after the Jie Xu component is used for flocculation-removing the mixed flocs. In one possible implementation, the de-flocculation assembly includes a de-flocculation machine and a sludge collection tank, the collection assembly including a magnetic drum, a scraper, and a catalyst collection hopper; The inlet of the de-flocculation machine is communicated with the sludge discharge port, the magnetic drum is rotatably arranged on the outlet of the de-flocculation machine, the sludge collecting tank is arranged between the outlet and the magnetic drum and is used for collecting sludge in the mixed flocs, and the magnetic drum is used for capturing the catalyst; The catalyst collecting hopper is provided with an opening, one end of the scraping plate is arranged on the opening, and the other end of the scraping plate is in contact with the magnetic drum, so that the catalyst falls into the catalyst collecting hopper through the scraping plate. In one possible implementation manner, a clear water zone is arranged inside the box body, and the separation zone is positioned between the air flotation zone and the clear water zone; A separation plate is arranged between the clear water area and the separation area, and one side of the separation plate, which faces the separation area, is provided with an overflow weir which is used for receiving part of the wastewater separated by the separation mechanism; A guide plate is arranged between the separation area and the air floatation area, a water inlet is arranged on the side wall of the air floatation area opposite to the guide plate