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Coal tar wastewater demulsification and oil removal device

A technology for coal tar and waste water, applied in grease/oily substance/float removal device, water/sewage treatment, natural water treatment, etc., can solve the big economic burden, violate clean production, dilute waste water and increase the processing load of biochemical station, etc. problems, to achieve the effect of reducing processing costs, reducing the content of pollutants, and high economic benefits

Pending Publication Date: 2021-01-05
榆林市榆神工业区华航能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a large amount of diluted wastewater increases the processing load of the biochemical station, virtually increases the energy consumption and cost of sewage treatment, and makes the enterprise bear a huge economic burden, which violates the principle of clean production

Method used

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  • Coal tar wastewater demulsification and oil removal device
  • Coal tar wastewater demulsification and oil removal device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 As shown, a coal tar wastewater demulsification and oil removal device in this embodiment includes a hydrochloric acid storage tank 1, a flocculant storage tank 2, a demulsifier storage tank 3, a coal tar wastewater tank 7, a primary separation tank 8 and a secondary The separation tank 9; the coal tar waste water tank 7 is connected to the primary separation tank 8 through a pipeline, the primary separation tank 8 is connected to the secondary separation tank 9 through a pipeline, and the hydrochloric acid storage tank 1, the flocculant storage tank 2 and the demulsifier storage tank 3 pass through the The pipeline is connected with the primary separation tank 8.

[0026] Specifically, the secondary separation tank 9 is connected to the stripping and dephenolizing device 11 through a pipeline, and the treated wastewater from the stripping and dephenolizing device 11 is discharged into the sewage treatment system 12 .

[0027] The technical effect achi...

Embodiment 2

[0029] Such as figure 1 As shown, a coal tar wastewater demulsification and oil removal device in this embodiment includes all the technical features in Embodiment 1. In addition, it also includes a bag filter 10 and a stripping dephenolization device 11. The bag filter The device 10 is arranged on the pipeline between the secondary separation tank 9 and the stripping and dephenolizing device 11.

[0030] Optionally, it also includes a first dosing pump 4, a second dosing pump 5 and a third dosing pump 6, the first dosing pump 4 is arranged on the pipeline between the hydrochloric acid storage tank 1 and the primary separation tank 8, The second dosing pump 5 is arranged on the pipeline between the flocculant storage tank 2 and the primary separation tank 8 , and the third dosing pump 6 is arranged on the pipeline between the demulsifier storage tank 3 and the primary separation tank 8 .

[0031] The beneficial effects in this embodiment are: by setting the bag filter 10, the...

Embodiment 3

[0033] Such as figure 1 As shown, a coal tar wastewater demulsification and degreasing device in this embodiment includes all the technical features in Embodiment 2. In addition, it also includes a first delivery pump 14, and the first delivery pump 14 is arranged on the coal On the pipeline between the tar waste water tank 7 and the primary separation tank 8.

[0034] Optionally, a second delivery pump 15 is also included, and the second delivery pump 15 is arranged on the pipeline between the primary separation tank 8 and the secondary separation tank 9 .

[0035] Optionally, a third delivery pump 16 is also included, and the third delivery pump 16 is arranged on the pipeline between the secondary separation tank 9 and the bag filter 10 .

[0036] The beneficial effects in this embodiment are: by setting the first delivery pump 14, the rapid delivery of the waste water in the coal tar wastewater tank 7 to the primary separation tank 8 is realized; by setting the second deli...

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Abstract

The invention discloses a coal tar wastewater demulsification and oil removal device, which is characterized in that a coal tar wastewater tank is connected with a primary separation tank through a pipeline, the primary separation tank is connected with a secondary separation tank through a pipeline, and a hydrochloric acid storage tank, a flocculant storage tank and a demulsifier storage tank arerespectively connected with the primary separation tank through pipelines. The coal tar wastewater demulsification and oil removal device has the advantages that by adding the hydrochloric acid, theflocculant and the demulsifier, the floated wastewater is demulsified and precipitated, heavy oil is recycled after secondary separation, and the wastewater enters the steam stripping and dephenolizing device to be further treated and then enters the sewage treatment system; therefore, the content of pollutants is remarkably reduced, the processing cost is remarkably reduced, and high economic benefits are obtained.

Description

technical field [0001] The invention relates to the technical field of coal tar wastewater treatment, in particular to a coal tar wastewater demulsification and oil removal device. Background technique [0002] Coal tar processing and production wastewater has the characteristics of high ammonia nitrogen, high oil content, high toxicity, and low B / C ratio, and belongs to difficult industrial wastewater. At present, the treatment methods of this kind of wastewater in China mainly adopt A / O and AA / O processes. These processes mainly use gravity separation and adsorption methods for oily substances. The removal rate of oily substances is only 20-30%, and the treatment effect is not good. It is very ideal, but it brings great difficulties to the subsequent biochemical treatment. [0003] Some enterprises adopt the method of increasing the dilution of tar wastewater, so that the concentration of pollutants in the system is greatly reduced, so that the effluent can meet the first...

Claims

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Application Information

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IPC IPC(8): C02F9/10C02F103/34
CPCC02F1/04C02F1/20C02F1/40C02F1/5281C02F1/66C02F9/00C02F2103/34
Inventor 高德俊单涛任庆民
Owner 榆林市榆神工业区华航能源有限公司
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