Coal gasification wastewater advanced treatment system

A technology for coal gasification wastewater and advanced treatment, which is applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. The effect of short time, good processing effect and stable system operation

Inactive Publication Date: 2014-01-22
SHAANXI SHENGMAI PETROLEUM
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  • Abstract
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Problems solved by technology

It is difficult for a single wastewater treatment unit to

Method used

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  • Coal gasification wastewater advanced treatment system

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Embodiment Construction

[0010] Such as figure 1 As shown, the coal gasification wastewater advanced treatment system of the present invention is composed of successively connected secondary internal circulation UASB-ABFB reactors, a premixing tank, a lift pump and an ozone oxidation tower.

[0011] The secondary internal circulation UASB-ABFB reactor is composed of UASB reactor, ABFB reactor and internal circulation system. The main body of the UASB reactor is made of circular plexiglass columns with D 20 cm×120 cm and D 25 cm×120 cm respectively, and three-phase separators are installed on the upper part, with effective volumes of 35 and 55 L, respectively. temperature. The outer wall is wrapped with thermal insulation material and equipped with constant temperature facilities. The operating conditions were (30±2)°C, the pH was controlled at 7.3-8.0, and the HRTs were 8 and 12.5 h, respectively.

[0012] The ABFB reactor is a rectangular plexiglass reactor with a size of 45 cm×25 cm×38 cm. Two vert

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Abstract

A coal gasification wastewater advanced treatment system disclosed by the invention relates to a treatment system for wastewater. The coal gasification wastewater advanced treatment system consists of a secondary internal circulation UASB-ABFB reactor, a premix pot, an elevator pump and an ozone oxidation tower which are successively connected. The coal gasification wastewater advanced treatment system has good treatment effect on coal gasification wastewater, stable operation, and shorter total hydraulic retention time than the hydraulic retention time reported by present literatures, and various water outlet indexes all satisfy first-level discharge standard requirement of ''Integrated Wastewater Discharge Standard'' (GB8978-1996).

Description

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Claims

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Application Information

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Owner SHAANXI SHENGMAI PETROLEUM
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