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Exhaust gas and wastewater treatment plant

A technology for wastewater treatment and waste gas treatment, which is applied in biological water/sewage treatment, water/sludge/sewage treatment, sustainable biological treatment, etc. It can solve the problems of long treatment process, regular backwashing, and large footprint. Achieve the effect of avoiding regular backwashing and avoiding hardening

Active Publication Date: 2021-05-14
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But this method can only treat waste gas but not waste water
[0009] The existing technology usually can only treat waste water or waste gas alone, which has the technical defects of long treatment process and large floor area, and the existing BAF technology has the technical defect of requiring regular backwashing, so it is necessary to develop a simple and easy-to-operate Comprehensive treatment device for waste water and waste gas

Method used

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  • Exhaust gas and wastewater treatment plant

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Effect test

specific Embodiment approach

[0046] According to a specific embodiment of the present invention, preferably, after waste gas treatment, some waste water may also be produced. In order to further ensure the treatment effect and meet the requirements of environmental friendliness, the first water outlet 13 of the waste gas treatment reactor 1 is connected to the The wastewater inlet 5 of the wastewater treatment reactor 2 is connected to send the wastewater generated by the exhaust gas treatment reactor 1 into the wastewater treatment reactor 2 for circulation treatment. In order to further ensure water recycling, the second water outlet 8 of the wastewater treatment reactor 2 is connected to the water inlet 11 of the exhaust gas treatment reactor 1, so as to introduce the treated wastewater into the exhaust gas treatment reactor 1 for reuse.

[0047] According to a specific embodiment of the present invention, after wastewater treatment, some waste gas may also be produced. In order to further ensure the tr...

Embodiment 1

[0058] like figure 1 As shown, the waste gas and waste water treatment device is used to treat waste water and waste gas of a petrochemical plant.

[0059] The diameter of the third reaction section III in the lower part of the exhaust gas treatment reactor 1 is 100 mm, and the height is 1.5 m. The height of the transitional second reaction section II is 300 mm. The diameter of the first reaction section I is 500 mm, and the height is 200 mm. The volume space velocity is 200h -1 , the gas-water ratio is 100:1. The vertical distance between the water inlet 11 and the bottom of the waste gas treatment reactor 1 is 5 mm.

[0060] The wastewater treatment reactor 2 is a BAF cylindrical reactor with a diameter of 300 mm and a height of 1 m. In the wastewater treatment reactor 2, the residence time of the wastewater is 20 hours, and the gas-water ratio is 3:1.

[0061] The waste gas and waste water treatment device also includes an upper filter material pipe 4 and a lower filter...

Embodiment 2

[0069] Waste water and waste gas are treated according to the method of embodiment 1, the difference is that the volumetric space velocity of waste gas is 500h -1 , The removal rate of ammonia in the exhaust gas after treatment reaches 92%, and the removal rate of hydrogen sulfide reaches 90%.

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Abstract

The invention relates to waste gas and waste water treatment, discloses a waste gas and waste water treatment device, the treatment device comprises a waste gas treatment reactor (1) and a waste water treatment reactor (2); the waste gas treatment reactor (1) comprises a first reactor Section (I), the second reaction section (II) and the third reaction section (III), the flow area of ​​the first reaction section (I) is greater than the flow area of ​​the third reaction section (III), the second reaction section ( II) The flow area gradually decreases from the first reaction section (I) to the third reaction section (III); the exhaust gas treatment reactor (1) is also provided with an exhaust gas inlet (10) and a water inlet (11) The treatment device also includes a lower filter material pipe (3), which is used to import the BAF filter material from the waste water treatment reactor (2) into the waste gas treatment reactor (1), and the upper filter material pipe (4), which is used for The BAF filter material is recycled from the waste gas treatment reactor (1) to the waste water treatment reactor (2). The treatment device provided by the invention can organically combine waste water treatment and waste gas treatment, and realize the treatment of waste water and waste gas on a set of BAF devices.

Description

technical field [0001] The invention relates to the field of waste gas and waste water treatment, in particular to a waste gas and waste water treatment device. Background technique [0002] Biological Aerated Filter (BAF) is a new biofilm sewage treatment process developed in Europe and America in the late 1980s. This process has the functions of removing SS, COD, BOD, nitrification, denitrification, phosphorus removal, and removal of AOX (harmful substances). It is characterized in that it integrates biological oxidation and interception of suspended solids, saving subsequent sedimentation tanks (secondary sedimentation tanks) , Its volumetric load and hydraulic load are large, the hydraulic retention time is short, the required infrastructure investment is small, the effluent water quality is good, the operating energy consumption is low, and the operating cost is low. [0003] Compared with ordinary activated sludge method, biological aerated filter has high organic loa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/84C02F3/10
CPCB01D53/84C02F3/10Y02W10/10Y02A50/20
Inventor 高峰赵锐马欣杨宇宁曹晓磊
Owner CHINA PETROLEUM & CHEM CORP