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Process for treating petrochemical wastewater

A technology for petrochemical and wastewater treatment, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. It can solve the problems of poor biodegradability of organic matter and inability to effectively remove organic pollutants, etc. problems, to achieve the effect of improving biodegradability and water quality

Inactive Publication Date: 2012-05-16
SHANGHAI CHEM IND PARK SINO FRENCH WATERDEV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, due to the poor biodegradability of organic matter in petrochemical wastewater with high salinity, conventional biological treatment processes cannot effectively remove organic pollutants in this wastewater.

Method used

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  • Process for treating petrochemical wastewater
  • Process for treating petrochemical wastewater
  • Process for treating petrochemical wastewater

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Embodiment Construction

[0015] refer to figure 1 Shown, the present invention discloses a kind of petrochemical wastewater treatment process, comprises the following steps:

[0016] S101. Perform reverse osmosis treatment on the petrochemical wastewater to obtain reverse osmosis concentrated water and reverse osmosis clean water. Reverse osmosis is a kind of reverse migration movement of osmosis, and it is a separation method that separates the solute in the solution from the solvent by means of the selective interception of the semi-permeable membrane under the pressure drive. The reverse osmosis process can remove impurities such as inorganic ions, bacteria, viruses, organic matter and colloids in raw water. In one embodiment, the reverse osmosis treatment in step S101 includes using pressure to drive petrochemical wastewater through a semi-permeable membrane, wherein the semi-permeable membrane has permeable pores with a pore size of 5-10 angstroms. The reverse osmosis clean water obtained in st...

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Abstract

The invention discloses a process for treating petrochemical wastewater. The process comprises the following steps of: performing reverse osmosis treatment on the petrochemical wastewater to obtain reverse osmosis concentrated water and reverse osmosis clear water; performing advanced oxidation treatment on the reverse osmosis concentrated water; and performing aerobic biological treatment on the reverse osmosis concentrated water subjected to advanced oxidation treatment. By the process for treating the petrochemical wastewater, a multi-process section series-connected treatment method is adopted, the biochemical degradability of the wastewater is improved by an advanced oxidation process, the effect of improving water quality can be relatively effectively achieved through aerobic biological treatment, and the petrochemical wastewater treated by the scheme meets the emission standard.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a treatment process for high-salinity petrochemical wastewater. Background technique [0002] The petrochemical industry is an important industry. The wastewater produced in the petrochemical production process is high-salinity petrochemical wastewater. The wastewater is characterized by high salt content, low concentration of organic pollutants, and difficult biodegradation. The chemical oxygen demand (COD) of the wastewater is relatively high, which does not meet the sewage discharge standards, and the wastewater must be treated. However, due to the poor biodegradability of organic matter in petrochemical wastewater with high salinity, conventional biological treatment processes cannot effectively remove organic pollutants in this wastewater. [0003] Therefore, in the field of wastewater treatment, there is an urgent need for a treatment process that can effectiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 瞿贤
Owner SHANGHAI CHEM IND PARK SINO FRENCH WATERDEV
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