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Micro-aerobic biological treatment system and micro-aerobic biological treatment method for degrading cyclic compounds in coal pyrolysis wastewater

A cyclic compound and treatment system technology, applied in the field of microaerobic biological treatment system, can solve problems such as blockage of advanced oxidation equipment, increased sludge treatment pressure, and unrecoverable materials, so as to maintain high sludge concentration and reduce effluent turbidity , The effect of reducing the cost of wastewater treatment

Active Publication Date: 2019-12-13
NAT ENG RES CENT OF URBAN WATER RESOURCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual engineering, powdered activated carbon or activated coke powder, etc. are used as sludge carriers, which often flow out with the effluent, causing serious problems such as blockage of advanced treatment membranes and advanced oxidation equipment
At the same time, because powdered activated carbon or activated coke powder is difficult to separate from the sludge after being mixed, the material cannot be recycled, and often enters the sludge treatment and disposal unit with the sludge during sludge discharge, increasing the pressure of sludge treatment

Method used

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  • Micro-aerobic biological treatment system and micro-aerobic biological treatment method for degrading cyclic compounds in coal pyrolysis wastewater
  • Micro-aerobic biological treatment system and micro-aerobic biological treatment method for degrading cyclic compounds in coal pyrolysis wastewater
  • Micro-aerobic biological treatment system and micro-aerobic biological treatment method for degrading cyclic compounds in coal pyrolysis wastewater

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specific Embodiment approach 1

[0029]Specific Embodiment 1: In this embodiment, a micro-aerobic biological treatment system is a semi-underground cylindrical structure, including a micro-aerobic active coke carrier mobile biological bed system, a semi-coke filter layer system, and a material recovery system. The coke carrier mobile biological bed system is located below the ground 19. The micro-oxygen activated coke carrier mobile biological bed system includes a blower 1, a microporous air disc aeration device 2, a water inlet pipe 3, at least one submersible mixer 4, activated sludge, and a magnetic reformer. Active coke 5, multi-parameter water quality monitor 6 and pool a 20, the semi-coke filter layer system includes filter material support layer 7, semi-coke 11, water outlet pipe 13, liquid level sensor 15, pressure measuring tube 16, annular water outlet Weir 18 and pool b 21, the material recovery system includes electromagnetic lifting pulley device 9 and electromagnetic recovery device 10;

[0030...

specific Embodiment approach 2

[0031] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the material recovery system also includes a staircase 12, a movable cover 14 and a filter material replacement platform 17, and the movable cover 14 is arranged on the microaerobic biological treatment At the top of the system, a staircase 12 is arranged on one side of the microaerobic biological treatment system, and the top of the staircase 12 is a filter replacement platform 17.

[0032] Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0033] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the filter material support layer 7 is composed of an upper and lower structure, and the upper and lower structures are vertically provided with support layer holes 8, and the upper and lower structures The holes 8 in the supporting layer are dislocated, and the inner wall of the top of the annular outlet weir 18 is evenly distributed with a sawtooth structure along the horizontal direction.

[0034] Other steps are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a micro-aerobic biological treatment system and method for degrading cyclic compounds in coal pyrolysis wastewater, belonging to the technical field of sewage treatment. The invention aims to solve the problems that semicoke and activated coke are difficult to regenerate and high in energy consumption and cost, and sludge carriers such as powdered activated carbon or activated coke powder and the like are easy to block advanced treatment membranes and advanced oxidation equipment in the prior art. The method comprises the following steps: starting a submersible stirrerand supplying air into a tank a through a microporous air disc aeration device; allowing coal pyrolysis wastewater to enter a tank b after having undergone adsorption by magnetically-modified activated coke and synergistic degradation of sludge-biological membrane; then allowing the wastewater to enter an annular effluent weir after adsorption and filtration by semicoke; and intercepting the wastewater with a sawtooth structure of the annular effluent weir and then allowing the wastewater to flow out through a water outlet pipe, thereby finishing degradation of cyclic compounds in the coal pyrolysis wastewater. The micro-aerobic biological treatment system and the micro-aerobic biological treatment method for degrading the cyclic compounds in the coal pyrolysis wastewater are disclosed inthe invention.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a microaerobic biological treatment system and method for degrading cyclic compounds in coal pyrolysis wastewater. Background technique [0002] Coal chemical industry wastewater contains a large number of ring-shaped organic substances, most of which have strong biological toxicity and carcinogenicity, and are the most important refractory and dangerous substances in coal chemical industry wastewater. Coal chemical wastewater treatment takes biological treatment as the core, and anaerobic-anoxic-aerobic-based biological treatment and subsequent advanced oxidation and membrane bioreactor are the mainstream treatment processes. However, aerobic treatment in traditional biological treatment generally consumes a lot of energy, and it is difficult to remove cyclic compounds, which leads to increased energy consumption and material consumption in subsequent advanced oxidation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/30
CPCC02F1/283C02F3/005C02F3/30C02F9/00C02F2101/30
Inventor 韩洪军郑梦启徐春燕张正文
Owner NAT ENG RES CENT OF URBAN WATER RESOURCE
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