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Zero-discharge treatment equipment and method for semi-coke wastewater

A technology for blue carbon wastewater and treatment equipment, which is applied in water/sewage treatment equipment, water/sewage treatment, water treatment parameter control, etc. , to achieve the effect of improving processing efficiency, good extraction effect and ensuring extraction effect

Active Publication Date: 2021-04-02
JIANGSU KUNPENG ENVIRONMENTAL PROTECTION ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dry storage temperature in coke production is about 1000°C, while the dry storage temperature in semi-coke production is low, so semi-coke wastewater contains a large number of pollutants that have not been oxidized by high temperature, and its concentration is about 10 times higher than that of coking wastewater, which can be biochemically extremely low sex
[0003] At present, the treatment of semi-coke wastewater usually uses an oil separation tank to remove oil, then extracts it in an extraction tower, and then performs ammonia distillation or stripping to remove ammonia, and a series of processes to improve biodegradability, and finally perform AO biochemical treatment; The treatment of semi-coke wastewater requires a large number of treatment equipment, and the process is complicated, which greatly limits the treatment efficiency of semi-coke wastewater

Method used

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  • Zero-discharge treatment equipment and method for semi-coke wastewater
  • Zero-discharge treatment equipment and method for semi-coke wastewater
  • Zero-discharge treatment equipment and method for semi-coke wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Embodiment 1: as figure 1 The zero-discharge treatment equipment for semi-coke wastewater includes sequentially connected pretreatment modules, a first treatment module 1, a deamination module 2, a second treatment module 3, and an AO biochemical treatment module;

[0049] Such as figure 2 The shown first processing module 1 includes a processing housing assembly, and a processing assembly installed on the processing housing assembly; the processing housing assembly includes a bracket, a circular tank 11 installed on the bracket, and a circular tank 11 installed on the The sealing cover 16 at the upper end, the rotating cylinder 12 that is movably installed on the sealing cover 16, and the power assembly that is installed on the circular tank body 11 to provide power to the rotating cylinder 12;

[0050] The upper end of the sealing cover 16 and the circular tank body 11 is fixedly connected by bolts, and the lower end of the sealing cover 16 is provided with a leak-p...

Embodiment 2

[0079] Embodiment 2: different from embodiment 1, a kind of zero-discharge treatment method of blue charcoal wastewater comprises the following steps:

[0080] Step 1. Preprocessing

[0081] Preliminary precipitation and filtration of cinder pollutants in semi-coke wastewater;

[0082] Step 2. Synchronous treatment of oil removal and phenol removal

[0083] Pass the pretreated semi-coke wastewater and polyaluminum chloride demulsifier into the mixer 141 for mixing and then enter the rotating cylinder 12; wherein, the volume ratio of the dosage of polyaluminum chloride demulsifier to the semi-coke wastewater is 0.8 g / L;

[0084] Then add the complex extractant with a volume ratio of 1:2 to the inside of the rotating cylinder 12 through the extractant feeding assembly 15; then add the sulfuric acid with a mass fraction of 98% in the rotating drum 12 through the sulfuric acid feeding assembly until The pH of the mixture is 3; the stirring blade is stirred for 30 minutes;

[0...

Embodiment 3

[0092] Embodiment 3: different from embodiment 1, a kind of zero-discharge treatment method of blue charcoal wastewater comprises the following steps:

[0093] Step 1. Preprocessing

[0094] Preliminary precipitation and filtration of cinder pollutants in semi-coke wastewater;

[0095] Step 2. Synchronous treatment of oil removal and phenol removal

[0096] Pass the pretreated semi-coke wastewater and polyaluminum chloride demulsifier into the mixer 141 for mixing and then enter the rotating cylinder 12; wherein, the volume ratio of the dosage of polyaluminum chloride demulsifier to the semi-coke wastewater is 0.7 g / L;

[0097] Then add the complex extractant with a volume ratio of 1:2 to the inside of the rotating cylinder 12 through the extractant feeding assembly 15; then add the sulfuric acid with a mass fraction of 88% in the rotating drum 12 through the sulfuric acid feeding assembly until The pH of the mixture is 2; the stirring blade is stirred for 25 minutes;

[0...

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Abstract

The invention relates to the technical field of semi-coke wastewater discharge treatment, and discloses zero-discharge treatment equipment and method for semi-coke wastewater. The equipment comprisesa pretreatment module, a first treatment module used for oil removal and dephenolization, a deamination module used for deamination, and a second treatment module connected with the deamination module. The method comprises the following steps: preprocessing; oil removal and dephenolization synchronous treatment: mixing wastewater with a polyaluminum chloride demulsifier provided by a demulsifier storage box through a mixer, then enabling obtained mixture to enter a circular tank body, then adding a complexing extraction agent into the circular tank body by an extraction agent feeding assembly,and meanwhile, driving the mixed liquid in the circular tank body to rotate by a rotating cylinder; deamination treatment; and dynamic electric flocculation treatment; According to the semi-coke wastewater treatment equipment provided by the invention, the wastewater treatment efficiency can be improved; and the treatment method provided by the invention can effectively ensure the treatment effect and reduce the treatment process.

Description

technical field [0001] The invention relates to the technical field of semi-coke wastewater discharge treatment, in particular to a zero-discharge treatment device and method for semi-coke wastewater. Background technique [0002] Semi-coke, also known as semi-coke, is a low-volatility solid carbonaceous product obtained by using long-flame coal, non-caking coal, weakly caking coal, etc. A special kind of waste water, the composition of the waste water is complex, mainly containing coal tar substances, including methanol, ethanol, formic acid, acetic acid, benzene, toluene, xylene, trimethylbenzene, phenolic substances, carp, green onion, pea, etc. Tar-like substances contain a large amount of ring-chain organic compounds, nitrogenous inorganic compounds and ammonia nitrogen. The dry storage temperature in coke production is about 1000°C, while the dry storage temperature in semi-coke production is low, so semi-coke wastewater contains a large number of pollutants that have...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F101/30C02F101/34C02F101/16
CPCC02F9/00C02F1/52C02F1/001C02F1/40C02F1/26C02F1/66C02F1/38C02F1/20C02F1/04C02F1/463C02F3/30C02F2101/30C02F2101/345C02F2101/16C02F2209/08C02F2201/4614C02F2203/006Y02W10/10
Inventor 杨正鹏周存华武兴华李佳兴
Owner JIANGSU KUNPENG ENVIRONMENTAL PROTECTION ENG CO LTD
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