Comprehensive use of coke, phenol and ammonia in semi coke sewage and sewage disposal recycle method

A technology for the treatment of blue carbon wastewater and wastewater, which is applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. Effect

Inactive Publication Date: 2015-09-23
张世文
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a method for comprehensive utilization of tar, phenol and ammonia in semi-coke wastewater and waste water treatment and recycling method, the main purpose of which

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  • Comprehensive use of coke, phenol and ammonia in semi coke sewage and sewage disposal recycle method
  • Comprehensive use of coke, phenol and ammonia in semi coke sewage and sewage disposal recycle method
  • Comprehensive use of coke, phenol and ammonia in semi coke sewage and sewage disposal recycle method

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[0047] Example 1

[0048] Reference figure 1 , Comprehensive utilization of tar, ammonia and phenol in blue charcoal wastewater and wastewater treatment recycling method:

[0049] (1) Coarse filtration: the blue charcoal wastewater with COD of 10000mg / L, ammonia nitrogen of 500mg / L, total phenols of 1000mg / L, chromaticity of 10000 times and pH value of 8 is coarsely filtered through a grid or screen. Remove large particles of debris;

[0050] (2) Coal tar recovery: add sulfuric acid to the blue charcoal wastewater after coarse filtration in step (1) to adjust its pH to 2-6, and separate by gravity sedimentation to obtain recovered coal tar and de-tarred wastewater;

[0051] Said gravity sedimentation separation is to add sulfuric acid to adjust the pH value of the blue charcoal concentrated wastewater into a gravity separation tank, and separate into the lower coal tar and upper decoking wastewater by gravity sedimentation, and the lower coal The tar is recovered through the recover...

Example Embodiment

[0074] Example 2

[0075] Reference figure 1 , Comprehensive utilization of tar, ammonia and phenol in blue charcoal wastewater and wastewater treatment recycling method:

[0076] (1) Coarse filtration: the blue charcoal wastewater with COD of 75000mg / L, ammonia nitrogen of 5000mg / L, total phenols of 6000mg / L, chroma of 30,000 times and pH of 10 is coarsely filtered through a grid or screen. Remove large particles of debris;

[0077] (2) Coal tar recovery: add hydrochloric acid to the blue charcoal wastewater after coarse filtration in step (1) to adjust its pH to 2-6, and separate by gravity sedimentation to obtain recovered coal tar and de-tarred wastewater;

[0078] Said gravity sedimentation separation is to pump the blue charcoal concentrated wastewater whose pH is adjusted to 2~5 by adding hydrochloric acid into a gravity separation tank and separate into lower coal tar and upper decoking wastewater, and the lower coal tar is recovered through a recovery pipe Get tar 40kg / m 3 ...

Example Embodiment

[0099] Example 3

[0100] Reference figure 2 , Comprehensive utilization of tar, ammonia and phenol in blue charcoal wastewater and wastewater treatment recycling method:

[0101] (1) Coarse filtration: the blue charcoal wastewater with COD of 34967mg / L, ammonia nitrogen of 1911mg / L, total phenols of 6000mg / L, chroma of 30,000 times and pH of 8.1 is coarsely filtered through a grid or screen. Remove large particles of debris;

[0102] (2) Coal tar recovery: add sulfuric acid to the blue charcoal wastewater after coarse filtration in step (1) to adjust its pH to 3 to 5, and centrifuge to obtain recovered coal tar and de-tarred wastewater;

[0103] The centrifugal separation is to pump the blue charcoal concentrated wastewater whose pH value is adjusted to 3~5 by adding sulfuric acid into the centrifuge. After centrifugal separation, the coal tar in the lower layer and the decoking wastewater in the upper layer are recovered, and the coal tar in the lower layer is recovered 17.6kg / m ...

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Abstract

A comprehensive use of coke, phenol and ammonia in semi coke sewage and sewage disposal recycle method comprises the following steps: (1) coarse filtering; (2) coal coke recycling; (3) phenol recycling; (4) ammonia recycling; (5) desulfurizing; (6) oxidating; (7) aerobic treatment; (8) anaerobic treatment; (9) secondary aerobic treatment; (10) electrolyzing; (11) membrane disposal or biological aerated filter biochemistry; (12) desalting. Deep disposal of semi coke sewage is performed by a combined disposal process of processes of membrane filtering, coal coke recycling, phenol recycling, ammonia recycling, desulfurizing, oxidating, aerobic treatment, anaerobic treatment, electrolyzing and the like, finally regeneration water is generated by desalting, full disposal of the sewage is realized, sewage pollution is eliminated, and recycle of water resource is realized by sewage regeneration.

Description

technical field [0001] The invention belongs to the field of water pollution control of environmental engineering, and more specifically refers to a method for comprehensive utilization of tar, phenol and ammonia in semi-charcoal waste water and waste water treatment and recycling. Background technique [0002] Semi-coke wastewater is a kind of industrial wastewater that is difficult to treat. It usually has the characteristics of complex composition, high concentration of pollutants, and stable properties. The inorganic pollutants in semi-coke wastewater mainly include sulfide, cyanide, ammonia nitrogen and thiocyanide; the organic pollutants are mainly coal tar substances, and the content of phenolic compounds is very high. In addition, it also contains polycyclic aromatic compounds. Group compounds and heterocyclic compounds containing nitrogen, sulfur, oxygen, etc. [0003] The water quality characteristics of semi-coke wastewater determine its complex hazards. For ex...

Claims

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Application Information

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IPC IPC(8): C02F9/14
CPCY02A20/131
Inventor 张世文
Owner 张世文
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