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Membrane-loaded biological deodorization reactor and deodorization method

A biological deodorization and reactor technology, applied in chemical instruments and methods, sustainable biological treatment, biological water/sewage treatment, etc., can solve the problems of low gas-liquid mass transfer efficiency and easy clogging, and achieve efficient degradation of microbial metabolism Activity, small footprint, and the effect of recycling

Active Publication Date: 2020-12-29
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the research on the removal of sulfur-containing odor by biological method is mainly concentrated on the biological trickling filter tower, which has the problems of easy clogging and low gas-liquid mass transfer efficiency.

Method used

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  • Membrane-loaded biological deodorization reactor and deodorization method
  • Membrane-loaded biological deodorization reactor and deodorization method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] The membrane-borne biological deodorization reactor used in the embodiment is as figure 1 and figure 2 As shown, follow the steps below:

[0083] (1) The waste liquid to be treated with a sulfhydryl content of 5mmol / L and the sludge from the secondary sedimentation tank of a sewage treatment plant with a VSS of 15g / L are jointly pumped into the membrane-mounted biodeodorization reactor to form a membrane, the hydraulic retention time is 24h, and oxygen The aeration partial pressure is 8psi, and the domestication is completed after 3 days;

[0084] (2) Pump the waste liquid to be treated with a sulfhydryl content of 5mmol / L into the membrane-mounted biological deodorization reactor, control the oxygen pressure to 10psi, and dynamically adjust the oxygen aeration rate according to the concentration of influent pollutants, and the concentration of influent pollutants will increase. High, increase the oxygen pressure, for every 5mmol / L increase, the control unit controls...

Embodiment 2

[0089] The membrane-borne biological deodorization reactor used in the embodiment is as figure 1 and figure 2 As shown, follow the steps below:

[0090] (1) The waste liquid to be treated with a thiol content of 5mmol / L and the sludge from the secondary settling tank of a sewage treatment plant with a VSS of 15g / L are jointly pumped into the membrane-mounted biodeodorization reactor with a hydraulic retention time of 12h and oxygen The partial pressure of aeration is 6psi, and the domestication is completed after 4 days;

[0091] (2) Pump the waste liquid to be treated with a sulfhydryl content of 5mmol / L into the membrane-mounted biological deodorization reactor, control the initial oxygen pressure to 10psi, adjust the oxygen aeration rate according to the concentration trend of the pollutants in the influent, and the concentration of pollutants in the influent Increase, increase the oxygen pressure, for every 5mmol / L increase, the control unit controls the corresponding v...

Embodiment 3

[0096] The membrane-borne biological deodorization reactor used in the embodiment is as figure 1 and figure 2 As shown, follow the steps below:

[0097] (1) The waste liquid to be treated with a thiol content of 5mmol / L and the sludge from the secondary settling tank of a sewage treatment plant with a VSS of 15g / L are jointly pumped into the membrane-mounted biodeodorization reactor with a hydraulic retention time of 12h and oxygen The partial pressure of aeration is 6psi, and the domestication is completed after 4 days;

[0098] (2) Pump the waste liquid to be treated with a thiol content of 5mmol / L into the membrane-mounted biological deodorization reactor, control the initial oxygen pressure to 10psi, and dynamically adjust the oxygen aeration rate according to the concentration of pollutants in the influent, and the concentration of pollutants in the influent Increase, increase the oxygen pressure, for every 5mmol / L increase, the control unit controls the corresponding ...

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Abstract

The invention provides a membrane-loaded biological deodorization reactor and a deodorization method. A membrane-loaded biological deodorization reactor comprises a reactor body, a plurality of membrane assemblies, a plurality of backwashing aerators, a first gas supply unit and a second gas supply unit, the membrane assembly and the backwashing aerators are arranged in the reactor body; the firstair supply unit is communicated with the membrane assemblies, and the second air supply unit is communicated with the backwashing aerators; and the backwashing aerators are arranged towards the membrane assemblies. According to the method, the membrane thickness of the biological membrane can be adjusted, the metabolic activity of efficient degradation microorganisms is high, the removal efficiency of sulfur-containing malodorous organic pollutants is high, and the oxygen utilization efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a membrane-carried biological deodorization reactor and a deodorization method. Background technique [0002] With the development of industrial production, the odor pollution has gradually intensified, which has seriously affected the living environment of the surrounding residents and caused a large number of complaints from residents. In the process of human industrial production, such as petroleum refineries, pesticide factories, rubber factories, paper mills, chemical factories, etc., will release a large amount of sulfur-containing and odorous organic pollutants, and some urban public facilities such as landfills and sewage treatment plants will also release Produces sulfur-containing and odorous organic pollutants. According to investigations, a landfill gas collection well contains high concentrations of methyl sulfide (36847-43307μg / m 3 ), m...

Claims

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Application Information

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IPC IPC(8): C02F3/12C02F3/10
CPCC02F3/12C02F3/102C02F2303/02Y02W10/10
Inventor 郑雄武婧陈银广董磊胡婉莹
Owner TONGJI UNIV