Method for deep treatment on difficultly-degraded organic nitrogen-containing industrial wastewater

A technology for industrial wastewater and advanced treatment, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, permeation/dialysis water/sewage treatment, etc. The problem of high cost, to achieve the effect of good removal capacity, good fixation, good mass transfer effect
CN102976552AActive Publication Date: 2013-03-20SICHUAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SICHUAN UNIV
Publication Date
2013-03-20

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Abstract

The invention relates to a method for deep treatment on difficultly-degraded organic nitrogen-containing industrial wastewater and belongs to the field of industrial wastewater treatment methods. The method comprises the following steps of 1, putting a suspended filler into a moving-bed biomembrane reactor, carrying out biomembrane culture, after the biomembrane culture, inputting difficultly-degraded nitrogen-containing industrial wastewater subjected to biochemical treatment into the moving-bed biomembrane reactor, and carrying out treatment, wherein the moving-bed biomembrane reactor operates by continuous water feeding, continuous draining and continuous aeration methods, 2, inputting the wastewater treated by the moving-bed biomembrane reactor into a membrane bioreactor, wherein the membrane bioreactor is added with activated sludge and operates by the continuous water feeding, continuous draining and continuous aeration methods, and 3, through a cartridge filter, treating the wastewater treated by the membrane bioreactor, and then filtering the treated wastewater by a reverse osmosis device. According to recycle water demands, it is determined if the step 3 is adopted so that quality-classification recycle is realized.
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Description

technical field

[0001] The invention belongs to the field of industrial wastewater treatment methods, in particular to a method for advanced treatment of organic nitrogen-containing industrial wastewater. Background technique

[0002] The pollutants contained in industrial wastewater are complex, and most industrial wastewater contains pollutants that are difficult to biodegrade, which makes the effluent of conventional biochemical treatment processes still contain some pollutants such as biodegradable organic matter and ammonia nitrogen, which cannot meet the comprehensive requirements of wastewater. Therefore, it is necessary to add an advanced wastewater treatment process to achieve the discharge of wastewater up to the standard, so as to realize the reuse of wastewater.

[0003] At present, the commonly used advanced wastewater treatment processes mainly include: (1) coagulation and sedimentation process, which is used for advanced wastewater treatment and has a good tre...

Claims

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