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A kind of coking wastewater treatment method

A coking wastewater and treatment method technology, which is applied in energy wastewater treatment, special compound water treatment, water/sewage treatment, etc., can solve the problems of biochemical performance decline, difficult treatment, human health hazards, etc., and improve the treatment effect Effect

Active Publication Date: 2022-06-07
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The organic pollutants contained in coking wastewater seriously inhibit the growth of microorganisms and normal metabolic activities, resulting in a decline in its biochemical properties, making it very difficult to treat; at the same time, it contains a large amount of carcinogenic polycyclic aromatic hydrocarbons, which not only cause serious pollution to water bodies, but also Great harm to human health

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  • A kind of coking wastewater treatment method
  • A kind of coking wastewater treatment method
  • A kind of coking wastewater treatment method

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Experimental program
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Effect test

Embodiment 1

[0033] according to figure 1 , 2 , 3, the present embodiment proposes a coking wastewater treatment method, comprising the following steps:

[0034] Step 1: Prepare biomass-modified coal char adsorbent by using Platycodon grandiflorum and fine coal from a power plant in the north. The preparation process includes:

[0035] T1: Grinding platycodon grandiflora to obtain platycodon grandiflorum powder, and processing platycodon grandiflorum powder through a 100-mesh sieve;

[0036] T2: Mix bellflower powder with fine coal from a power plant in the north at a ratio of 7:3;

[0037] T3: Use the coal pyrolysis experimental device to process the mixture of bellflower powder and fine coal of a power plant in the north. First, turn on the switch of the coal pyrolysis experimental device, set the temperature, raise the temperature to 850°C, then turn on the nitrogen switch, and let the nitrogen gas in for 10 minutes. Then put the mixture of platycodon root powder and fine coal of a p...

Embodiment 2

[0049] according to figure 1 , 2 , 3, the present embodiment proposes a coking wastewater treatment method, comprising the following steps:

[0050] Step 1: Prepare biomass-modified coal char adsorbent by using Platycodon grandiflorum and fine coal from a power plant in the north. The preparation process includes:

[0051] T1: Grinding platycodon grandiflora to obtain platycodon grandiflorum powder, and processing platycodon grandiflorum powder through a 100-mesh sieve;

[0052] T2: Mix bellflower powder with fine coal from a power plant in the north at a ratio of 7:3;

[0053] T3: Use the coal pyrolysis experimental device to process the mixture of bellflower powder and fine coal of a power plant in the north. First, turn on the switch of the coal pyrolysis experimental device, set the temperature, raise the temperature to 850°C, then turn on the nitrogen switch, and let the nitrogen gas in for 10 minutes. Then put the mixture of platycodon root powder and fine coal of a p...

Embodiment 3

[0065] according to figure 1 , 2 , 3, the present embodiment proposes a coking wastewater treatment method, comprising the following steps:

[0066] Step 1: Prepare biomass-modified coal char adsorbent by using Platycodon grandiflorum and fine coal from a power plant in the north. The preparation process includes:

[0067] T1: Grinding platycodon grandiflora to obtain platycodon grandiflorum powder, and processing platycodon grandiflorum powder through a 100-mesh sieve;

[0068] T2: Mix bellflower powder with fine coal from a power plant in the north at a ratio of 7:3;

[0069] T3: Use the coal pyrolysis experimental device to process the mixture of bellflower powder and fine coal of a power plant in the north. First, turn on the switch of the coal pyrolysis experimental device, set the temperature, raise the temperature to 850°C, then turn on the nitrogen switch, and let the nitrogen gas in for 10 minutes. Then put the mixture of platycodon root powder and fine coal of a p...

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Abstract

The present invention proposes a coking wastewater treatment method, comprising the following steps: preparing biomass-modified coal char adsorbent by using platycodon grandiflorum and fine coal from a power plant in the north, preparing metal-doped manganese dioxide photocatalyst, using the prepared metal-doped manganese dioxide The manganese oxide photocatalyst is used to treat the coking wastewater solution containing phenol, and the prepared biomass modified coal char adsorbent is used to co-treat the coking wastewater solution containing phenol after the co-treatment of the metal-doped manganese dioxide photocatalyst; The invention first uses the prepared metal-doped manganese dioxide photocatalyst to carry out photocatalytic treatment of coking wastewater containing phenol, and then uses the biomass modified coal char adsorbent prepared by bellflower and fine coal from a power plant in the north to treat the coking wastewater containing phenol Adsorption treatment of wastewater can significantly improve the treatment effect on coking wastewater containing phenol, and the treatment efficiency of 50mL coking wastewater solution containing 500mg / L phenol is as high as 90.5%.

Description

technical field [0001] The invention relates to the technical field of coking wastewater treatment, in particular to a coking wastewater treatment method. Background technique [0002] Coking wastewater is a high-concentration, non-ideal system, heterogeneous phase containing volatile phenols, polycyclic aromatic hydrocarbons, and heterocyclic compounds such as oxygen, sulfur, and nitrogen produced in the process of coal-to-coke, gas purification, and coking product recovery. Refractory organic industrial wastewater, its BOD 5 The / COD value is generally 0.28-0.32, with poor biodegradability and difficult biodegradation. Coking wastewater has a wide variety of pollutants, complex components, and contains a large number of refractory substances. The pollutants contained in it are mainly divided into inorganic pollutants and organic pollutants. There are many kinds of organic pollutants. The main forms are phenol, p-cresol, Phthalene and its homologues, as well as heterocycl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/24B01J23/34B01J23/889B01J20/30C02F9/08C02F101/34
CPCB01J20/24B01J23/8892B01J23/34B01J20/20C02F1/283C02F1/286C02F1/30C02F2101/345C02F2305/10B01J35/39Y02W10/37
Inventor 张敬红黄吉张月恺王淑勤刘路游付东
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)