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Reeling waste water processing method

A treatment method and technology for silk reeling wastewater are applied in the field of wastewater treatment, which can solve the problem that nitrogen and phosphorus cannot be removed at the same time, and achieve the effect of improving the degree of hydrolysis

Inactive Publication Date: 2015-11-18
LUZHAI GUISHENG COCOON SILK IND & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a treatment method for silk reeling wastewater, which can solve the problem that nitrogen and phosphorus cannot be removed simultaneously in the treatment of silk reeling wastewater

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The treatment method of this silk reeling waste water, comprises agitator, comprises the following steps:

[0019] A. Pass the waste water through a 100-mesh steel mesh into a hydrolysis tank filled with hydrochloric acid with a concentration of 6mol / l for hydrolysis, stir for 5 minutes, the hydrolysis temperature is 120°C, and the hydrolysis time is 7 hours;

[0020] B. The waste water after hydrolysis enters the cooling pool, and the waste water is cooled to 15° C. and enters the anaerobic pool including denitrifying phosphorus accumulating bacteria, and stirs for 4 minutes. The dissolved oxygen concentration in the anaerobic pool is 2 mg / l, and the reaction time is 1 hour. ;

[0021] C. through the anoxic pool comprising denitrate at a temperature of 5° C., stirring for 7 minutes, the dissolved oxygen concentration in the anoxic pool was 0.05 mg / l, and the reaction time was 1 hour;

[0022] D. After passing through an aerobic tank with a temperature of 15°C includin...

Embodiment 2

[0027] The treatment method of this silk reeling waste water, comprises agitator, comprises the following steps:

[0028] A. Pass the waste water through a 300-mesh steel mesh into a hydrolysis tank filled with hydrochloric acid with a concentration of 8mol / l for hydrolysis, stir for 7 minutes, the hydrolysis temperature is 130°C, and the hydrolysis time is 9 hours;

[0029] B. The waste water after hydrolysis enters the cooling pool, and the waste water is cooled to 35°C and enters the anaerobic pool that includes denitrifying phosphorus accumulating bacteria, and stirs for 7 minutes. The dissolved oxygen concentration in the anaerobic pool is 2.5mg / l, and the reaction time is 3 Hour;

[0030] C. be 35 ℃ of anoxic pools that the temperature that comprises denitrate is passed through, stir 15 minutes, the dissolved oxygen concentration of described anoxic pools is 0.15mg / l, and reaction time is 2 hours;

[0031] D. After passing through an aerobic tank with a temperature of 3...

Embodiment 3

[0036] The treatment method of this silk reeling waste water, comprises agitator, comprises the following steps:

[0037] A. Pass the waste water through a 200-mesh steel mesh into a hydrolysis tank filled with hydrochloric acid with a concentration of 7mol / l for hydrolysis, stir for 6 minutes, the hydrolysis temperature is 125°C, and the hydrolysis time is 8 hours;

[0038] B. The waste water after hydrolysis enters the cooling pool, and the waste water is cooled to 25°C and enters the anaerobic pool that includes denitrifying phosphorus accumulating bacteria, and stirs for 5 minutes. The dissolved oxygen concentration in the anaerobic pool is 2.25mg / l, and the reaction time is 2 Hour;

[0039] C. be 25 ℃ of anoxic pools that the temperature that comprises denitrate is passed through, stir 11 minutes, the dissolved oxygen concentration of described anoxic pools is 0.1mg / l, and reaction time is 1.5 hours;

[0040] D. After passing through an aerobic tank with a temperature of...

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Abstract

The invention discloses a reeling waste water processing method and relates to the technical field of waste water treatment. The method comprises the following steps that A. the waste water passes a filter screen and enters into a hydrolysis pond that contains hydrochloric acid for hydrolysis; B. after the hydrolysis, the waste water enters into a cooling pond, and when the temperature of the waste water is cooled to 15 DEG C to 35 DEG C, the waste water then enters into an anaerobic tank that contains denitrifying phosphate-accumulating organisms; C. the waste water enters into an anoxic pond that contains denitrifying bacteria at a temperature of 15 DEG C to 35 DEG C; D. the waste water then enters into an aerobic pond that contains nitrobacteria and nitrosobacteria at a temperature of 15 DEG C to 35 DEG C; an aeration apparatus is turned on; E. the waste water enters into a sedimentation pond; a coagulant is added to precipitate sludge to obtain a precipitate, and the precipitate and water are separately discharged; and F. the waste water enters into a solution with a decolorant for decolorization. Compared to the prior art, the method can effectively reduce the content of total nitrogen, total phosphorus and sericin protein in the reeling waste water, thereby obtaining transparent and clear water.

Description

technical field [0001] The invention relates to the technical field of waste water treatment, in particular to a treatment method for treating waste water generated in the silk reeling production process. Background technique [0002] Patent application number: 2013100735944 discloses a method for precipitating sericin in silk reeling wastewater, including hydrolyzing with anhydrous citric acid and disodium hydrogen phosphate, and using a stirrer to stir the reeling wastewater to precipitate sericin. The disadvantage of this method is that nitrogen and phosphorus in silk reeling wastewater cannot be removed at the same time. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a treatment method for silk reeling wastewater, which can solve the problem that nitrogen and phosphorus cannot be removed simultaneously during the treatment of silk reeling wastewater. [0004] In order to solve the above problems, the techni...

Claims

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Application Information

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IPC IPC(8): C02F9/14
Inventor 覃朝熙
Owner LUZHAI GUISHENG COCOON SILK IND & TRADE
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