Method for disposing coking wastewater

A technology of coking wastewater and treatment methods, applied in water/sewage treatment, chemical instruments and methods, light water/sewage treatment, etc., can solve problems such as teratogenicity, mutagenesis, and carcinogenicity

Inactive Publication Date: 2017-01-25
樊之雄
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, various treatment processes cannot completely mineralize the organic matter in coking wastewater, and the treated wastewater still contains a large number of low-concentration pollutants that enter the environment with the external drainage. Most of these pollutants have "carcinogenic, teratogenic, and mutagenic" effects and toxicity, which may pose risks to ecological security and human health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A treatment method for coking wastewater, comprising the following steps:

[0017] (1) Mix coking wastewater with 3‰ polyaluminum ferric chloride, 1‰ polyacrylamide, 1‰ sodium lignosulfonate and the wastewater to be treated, stir for 20 minutes, filter, and remove the filter residue;

[0018] (2) Add 2‰ of zeolite molecular sieve, 1‰ of vermiculite powder, 1‰ of aminocarboxylic acid chelating resin and 1‰ of hydroxy acrylic resin, put it into an ultrasonic oscillator for 20 minutes, filter and remove the filter residue;

[0019] (3) Add 3‰ purple hyacinth root powder, 1‰ rape straw powder and 2‰ asparagus powder, heat to 40°C, stir at 120r / min for 20 minutes, filter to remove filter residue ;

[0020] (4) Add 3‰ of wheat germ powder and 2‰ of ferrous sulfate, stir for 20 minutes under the irradiation of ultraviolet lamp and the speed of 100r / min, filter and remove the filter residue;

[0021] (5) Determination of various physical and chemical indicators of the treated...

Embodiment 2

[0023] A treatment method for coking wastewater, comprising the following steps:

[0024] (1) Mix coking wastewater with 3.5‰ polyaluminum ferric chloride, 1.5‰ polyacrylamide, 1.5‰ sodium lignosulfonate and wastewater to be treated, stir for 25 minutes, filter, and remove filter residue;

[0025] (2) Add 2.5‰ zeolite molecular sieve, 1.5‰ vermiculite powder, 1.5‰ aminocarboxylic acid chelating resin and 1.5‰ hydroxy acrylic resin, put it into an ultrasonic oscillator for 25 minutes, filter and remove the filter residue;

[0026] (3) Add 3.5‰ purple root water hyacinth root powder, 1.5‰ rape straw powder and 2.5‰ longanseed vegetable powder, heat to 45°C, stir at 130r / min for 25 minutes, filter to remove filter residue ;

[0027] (4) Add 4‰ of wheat germ powder and 2.5‰ of ferrous sulfate, stir for 25 minutes under the irradiation of ultraviolet light and the speed of 120r / min, filter, and remove the filter residue;

[0028] (5) Determination of various physical and chemical...

Embodiment 3

[0030] A treatment method for coking wastewater, comprising the following steps:

[0031] (1) Mix 4‰ polyaluminium ferric chloride, 2‰ polyacrylamide, 1.5‰ sodium lignosulfonate and the wastewater to be treated in the coking wastewater, stir for 30 minutes, filter, and remove the filter residue;

[0032] (2) Add 3‰ of zeolite molecular sieve, 2‰ of vermiculite powder, 1.5‰ of aminocarboxylic acid chelating resin and 2‰ of hydroxy acrylic resin, put it into an ultrasonic oscillator for 30 minutes, filter and remove the filter residue;

[0033] (3) Add 4‰ purple root water hyacinth lotus powder, 2‰ rape straw powder and 3‰ asparagus powder, heat to 50°C, stir at 135r / min for 25 minutes, filter to remove filter residue ;

[0034] (4) Add 4.5‰ of wheat germ powder and 3‰ of ferrous sulfate, stir for 30 minutes under the irradiation of ultraviolet lamp and the speed of 150r / min, filter, and remove the filter residue;

[0035] (5) Determination of various physical and chemical ind...

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PUM

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Abstract

The invention provides a method for disposing coking waste water comprising the steps of:(1)mixing the polyaluminum ferric chloride,polyacrylamide, sodium lignosulphonate and the waste water to be processed for stirring, filtration, and removing the residues; (2) adding zeolite molecular sieves, vermiculite powder, aminocarboxylic acid chelate resin and hydroxy acrylic resin, and putting into the ultrasonic oscillator for ultrasonic oscillation, filtration, and removing the residues;(3) adding purple root eichhornia crassipes root powder, rape straw powder and potamogeton pectinatus L powder for heating and stirring, filtration, and removing the residue; (4) adding wheat germ powder and ferrous sulfate, stirring under the irradiation of ultraviolet lamps, filtering, and removing the residues; (5) determining the physical and chemical index of the treated waste water. The method for disposing coking waste water of the invention has the advantageous of high removal rate of heavy metal ions Hg2+, almost all of them can be removed, while the invention has good effects of removing CODand aniline with good processing result.

Description

technical field [0001] The invention relates to a treatment method for coking wastewater. Background technique [0002] Coking wastewater is a typical large-volume, wide-ranging, complex-component, toxic and refractory organic wastewater, which mainly comes from the production water and steam condensation wastewater in the initial cooling of coke oven gas and coking production. my country is a big country in the coking industry, and the amount of wastewater generated by this industry is huge, accounting for about 2% of the national industrial wastewater discharge. At present, various treatment processes cannot completely mineralize the organic matter in coking wastewater, and the treated wastewater still contains a large number of low-concentration pollutants that enter the environment with the external drainage. Most of these pollutants have "carcinogenic, teratogenic, and mutagenic" effects and toxicity, which may pose risks to ecological security and human health. There...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C02F1/00C02F1/32C02F1/52C02F1/56C02F101/38C02F101/20
CPCC02F1/00C02F1/32C02F1/5245C02F1/56C02F2101/20C02F2101/38
Inventor樊之雄
Owner樊之雄