Process for processing refractory organic wastewater

A kind of organic wastewater and refractory technology, which is applied in the direction of light water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., to achieve the effect of reducing floor space, reducing burden, and reducing pool capacity

Inactive Publication Date: 2009-05-27
VISBE XIAMEN ENVIRONMENT TECH CO LTD
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Problems solved by technology

[0008] The present invention provides a process for treating refractory organic wastewater, the main purpose of which is to overcome many difficult problems in the process of treating high-concentration refractory organic wastewater by the above-mentioned existing biochemical method

Method used

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Examples

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Embodiment Construction

[0011] Specific embodiments of the present invention will be described below.

[0012] According to the current problems and difficulties in the treatment of high-concentration organic wastewater, this example transforms the traditional biochemical process, and adopts the following processes for the treatment of high-concentration organic wastewater: pretreatment, microwave treatment system, traditional MBR treatment system, effluent up to standard emission.

[0013] The organic wastewater to be treated is pretreated by oil separation and slag removal by physical methods such as filtration and sedimentation. High-concentration organic wastewater enters the microwave treatment system after pretreatment of oil removal and slag separation. Pollutants in organic wastewater are subjected to violent catalysis, physical and chemical reactions under the action of microwaves, and are converted into insoluble substances or gases and separated from water. Under the environment, it is d...

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Abstract

The invention relates to technology for treating refractory organic wastewater, which comprises: performing oil and slag removal pretreatment on the organic wastewater; radiating the organic wastewater by microwaves, and generating micromolecules from macromolecules of organic molecules in the organic wastewater through chain fracture under the action of the microwaves; and performing biochemical treatment and ultrafiltration membrane separation on the organic wastewater which is subjected to microwave radiation treatment by adoption of a membrane bioreactor MBR, and obtaining water which can reach the emission standard. Compared with the prior biochemical technology, the technology can greatly reduce the capacity of a sewage biochemical tank, shorten the retention time of the biochemical treatment, and reduce the floor space and the construction investment of a project.

Description

technical field [0001] The invention relates to a waste water treatment process, in particular to a process for treating refractory organic waste water. Background technique [0002] High-concentration refractory organic wastewater is mainly wastewater produced in the production process of dyes, pesticides, medicines, chemicals, coking, etc. Wastewater pollutants have high concentrations, high toxicity, and high salt content are difficult to biodegrade, so pretreatment technologies and methods must be used , can be dealt with effectively. [0003] Refractory organic matter refers to organic matter that is decomposed slowly and incompletely by microorganisms, including some metabolites of organic matter. Such pollutants are easy to accumulate in organisms and become potential sources of water pollution. Such pollutants include polycyclic aromatic hydrocarbons, halogenated hydrocarbons, heterocyclic compounds, organic compounds, organophosphorus pesticides, surfactants, organ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F1/40C02F1/30
Inventor 王俊川
Owner VISBE XIAMEN ENVIRONMENT TECH CO LTD
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