Biological treatment method of waste water from printing and dying

A technology for printing and dyeing wastewater and biological treatment, applied in biological sludge treatment, water/sewage treatment, water/sludge/sewage treatment, etc., to achieve good water quality, strong shock load resistance, improved treatment effect and operational stability Effect

Inactive Publication Date: 2004-11-10
GUANGDONG INST OF MICROORGANISM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the traditional biological treatment process, the treatment effect, especially in the decolorization, is often unsatisfactory, and the aniline compounds produced during the decolorization are no longer suitable for the current needs. It is nec

Method used

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  • Biological treatment method of waste water from printing and dying

Examples

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Effect test

Embodiment 1

[0010] Embodiment 1: according to attached figure 1 The device and process shown are used to treat printing and dyeing wastewater. By inoculating facultative anaerobic aniline degrading bacteria and facultative anaerobic decolorizing bacteria on anaerobic sludge in ABR, and inoculating facultative anaerobic aniline degrading bacteria and facultative anaerobic decolorizing bacteria on SBR activated sludge, ABR and SBR The inoculated microorganisms were Pseudomonas putida, Shewanella oneidensis, Aeromonas punctata, and Salmonella bongori. Measures such as controlling the ABR hydraulic retention time to gradually shorten from 80 hours to 24 hours enable the ABR reactor to start relatively quickly and form granular sludge. The ABR hydraulic retention time is 36 hours, the pH value of the influent is 6.0-8.0, the temperature is 20°C-42°C, the dissolved oxygen of the SBR is controlled at 2mg / L-5mg / L, and the pH value of the activated sludge suspension is adjusted to 6.0 ~8.0, the ...

Embodiment 2

[0011] Embodiment 2: according to attached figure 1 The device and process shown are used to treat printing and dyeing wastewater. By inoculating facultative anaerobic aniline degrading bacteria and facultative anaerobic decolorizing bacteria on anaerobic sludge in ABR, and inoculating facultative anaerobic aniline degrading bacteria and facultative anaerobic decolorizing bacteria on SBR activated sludge, ABR and SBR The microorganisms inoculated were Pseudomonas aeruginosa, Klebsiella terrigena, and Citrobacter freumdii. Measures such as controlling the ABR hydraulic retention time to gradually shorten from 80 hours to 24 hours enable the ABR reactor to start relatively quickly and form granular sludge. The ABR hydraulic retention time is 36 hours, the pH value of the influent is 6.0-8.0, the temperature is 20°C-42°C, the dissolved oxygen of the SBR is controlled at 2mg / L-5mg / L, and the pH value of the activated sludge suspension is adjusted to 6.0 ~8.0, the temperature is ...

Embodiment 3

[0012] Embodiment 3: according to attached figure 1The device and process shown are used to treat printing and dyeing wastewater. The anaerobic sludge in the ABR is inoculated with facultative anaerobic aniline degrading bacteria and facultative anaerobic decolorizing bacteria, and the microorganisms inoculated are Pseudomonas putida and Escherichia coli. The SBR activated sludge was inoculated with aerobic and facultative anaerobic aniline degrading bacteria and facultative anaerobic decolorizing bacteria. .), Paracoccus versutus, Escherichia coli. Measures such as controlling the ABR hydraulic retention time to gradually shorten from 80 hours to 24 hours enable the ABR reactor to start relatively quickly and form granular sludge. The ABR hydraulic retention time is 36 hours, the pH value of the influent is 6.0-8.0, the temperature is 20°C-42°C, the dissolved oxygen of the SBR is controlled at 2mg / L-5mg / L, and the pH value of the activated sludge suspension is adjusted to 6...

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Abstract

The invention provides a biological treatment process for printing and dyeing waste water, in particular printing and dyeing wastewater containing amino-benzene, wherein an anaerobic baffle reactor (ABR) and a sequencing batch reactor (SBR) are combined for water treatment, the treatment process comprises the steps of, pumping the printing and dyeing wastewater into anaerobic baffle reactor, the printing and dyeing wastewater being treated by the sludge layer of the anaerobic baffle reactor and fed in batch into the sequencing batch rector for active sludge treatment, the ABR process according to the invention realizes both decoloration and partial degradation of amino-benzene.

Description

technical field [0001] The invention relates to a treatment method for printing and dyeing wastewater, in particular to a treatment method for aniline-containing printing and dyeing wastewater. Background technique [0002] Printing and dyeing wastewater is one of the main harmful industrial wastewater at present. It contains toxic substances and has the characteristics of large water volume, high chroma, and complex components, causing serious pollution to the environment. There are various technologies for treating printing and dyeing wastewater at home and abroad. The main methods are physical and chemical treatment and biological treatment, and the two methods are used alone or in combination. Materials for physical treatment mainly include activated carbon and diatomaceous earth. The former has higher treatment costs, while the latter requires a large amount of materials and produces a large amount of sludge, which is difficult to apply on a large scale. The coagulatio...

Claims

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Application Information

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IPC IPC(8): C02F1/58C02F3/30C02F11/02
CPCY02W10/20
Inventor 孙国萍曾国驱任随周许玫英岑英华
Owner GUANGDONG INST OF MICROORGANISM
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