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Device and method for treating high concentration refractory organic wastewater

A technology for organic wastewater treatment and organic wastewater, which is applied in the field of water treatment and can solve the problems of long multi-stage filtration process and complicated operation

Inactive Publication Date: 2018-12-18
南京科莱恩环境工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The problem with this process is that the multi-stage filtration process is long and the operation is complicated

Method used

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  • Device and method for treating high concentration refractory organic wastewater
  • Device and method for treating high concentration refractory organic wastewater
  • Device and method for treating high concentration refractory organic wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Embodiment 1: as figure 1 As shown, the high-concentration refractory organic wastewater treatment device includes a pretreatment system, a biochemical treatment system, and an advanced treatment system connected in sequence through system pipes; the pretreatment system includes a collection pool 1, an acid adjustment device 2, and an efficient Oil separation device 3, selective electrocatalytic oxidation device (SECO) 4, selective catalytic reduction oxidation reactor (SCRO) 5 and neutralization sedimentation tank 6, said selective catalytic reduction oxidation reactor (SCRO) 5 includes catalytic selection Selective catalytic reduction device (SCR) 5-1 and selective catalytic oxidation device (SCO) 5-2, the selective catalytic reduction device (SCR) 5-1 and the selective catalytic oxidation device (SCO) 5-2 are mutually independent and connected in sequence; the biochemical treatment system includes a biochemical regulation tank 7, a hydrolysis acidification tank 8, an...

Embodiment 2

[0074] Embodiment 2: adopt the device and method in implementing 1, take the high-concentration refractory organic waste water that is blue charcoal waste water that gets with a coking plant in Shaanxi as an example, the waste water quality index is as follows table 1:

[0075] Table 1 Blue carbon wastewater water quality index

[0076]

[0077] The waste water 1000m 3 / d, one-pass pretreatment system, biochemical treatment system and advanced treatment system;

[0078] (1) Pretreatment process: the pretreatment system includes a sequentially connected collection pool 1, acid adjustment device 2, high-efficiency oil separation device 3, selective electrocatalytic oxidation device (SECO) 4, selective catalytic reduction oxidation device (SCRO) 5 , neutralization sedimentation tank 6;

[0079] S11 Acid adjustment: After the organic wastewater is discharged into the collection pool 1, it is pumped to the acid adjustment device 2 to add sulfuric acid and / or hydrochloric acid ...

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Abstract

The invention relates to a device and a method for treating high concentration refractory organic wastewater. The device comprises a pretreatment system, a biochemical treatment system and a deep treatment system which are sequentially communicated with each other by means of pipelines; the pretreatment system comprises a collection tank, an acid adjustment device, a high-efficiency oil separationdevice, a selective electrocatalytic oxidation device (SECO), a selective catalytic reduction oxidation reactor (SCRO) and a neutralization and sedimentation tank which are sequentially communicatedwith each other, wherein the selective catalytic reduction oxidation reactor (SCRO) comprises a selective catalytic reduction device (SCR) and a selective catalytic oxidation device (SCO), and the selective catalytic reduction device (SCR) and the selective catalytic oxidation device (SCO) are sequentially independent of each other and are communicated with each other; the biochemical treatment system comprises a biochemical regulation tank, a hydrolysis and acidification pool, an internal circulation reactor (ICR), an anoxic tank, an aerobic tank and a secondary settling tank which are sequentially communicated with each other; the deep treatment system comprises a blending pool, a fluidized bed oxidation tower, a neutralization degassing tank, a coagulative precipitation tank and a clearwater tank which are sequentially communicated with each other.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a device and method for treating high-concentration refractory organic wastewater. Background technique [0002] Typical high-concentration refractory organic wastewater, such as coking wastewater and semi-coke wastewater, refers to the dry distillation (about 600-800°C) process of different types of coal (non-caking coal, weakly caking coal, long-flame coal, etc.) and A kind of industrial wastewater formed in the process of gas purification. This kind of wastewater has complex components and contains a large number of refractory and highly toxic pollutants, such as organic pollutants such as benzene series, phenols, polycyclic aromatic hydrocarbons, nitrogen-oxygen heterocyclic compounds, and inorganic pollutants such as heavy metals. High concentration refractory organic wastewater. The COD of wastewater is as high as 20000-60000mg / L, the content of phenols is about 2...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F1/20C02F1/40C02F1/4672C02F1/4676C02F1/52C02F1/66C02F1/72C02F3/2873C02F3/30C02F9/00
Inventor 范玉明徐延忠刘大华
Owner 南京科莱恩环境工程有限公司
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