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A kind of preparation method of organic wastewater adsorption degradation agent

A technology for adsorption and degradation of organic wastewater, applied in chemical instruments and methods, adsorption water/sewage treatment, inorganic chemistry, etc., can solve the problems of inability to meet the requirements of organic wastewater treatment, explosion hazards, etc., and achieve strong adsorption and decolorization. Treatment costs, effects of strong adsorption and degradability

Active Publication Date: 2015-10-07
江苏密西西比水务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the volatile and flammable properties of organic compounds, this technology is prone to explosion hazards during application.
[0008] With the continuous increase of organic wastewater discharge and the continuous strengthening of people's awareness of environmental protection and safety awareness, none of the above water treatment methods can meet people's requirements for organic wastewater treatment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for preparing an organic waste water adsorption degradation agent according to the present application comprises the following steps:

[0029] a. Dissolution of raw materials

[0030] Weigh 10g of sodium silicate and zinc sulfate and dissolve them in 40mL of water to prepare a solution with a mass fraction of 20%;

[0031] b. Adjust the pH value of the sodium silicate solution

[0032] Adjust the pH value of the sodium silicate solution with 1M sulfuric acid to reach pH=12~13;

[0033] c. Double precipitation reaction

[0034] Mixing sodium silicate and zinc sulfate solution, a neutralization reaction occurs, and a double precipitation reaction of silica gel and zinc hydroxide is generated;

[0035] d. Aging treatment

[0036] Add dilute sulfuric acid to the double-precipitation reaction system, adjust the pH value again to reach pH=6-8, and let it stand for 0.5h to achieve the aging effect.

[0037] e. Filter and dry

[0038] After aging, the material is...

Embodiment 2

[0042] A kind of preparation method of organic wastewater adsorption degradation agent, its concrete steps are the same as embodiment 1, except the control of following parameters:

[0043] a. Dissolution of raw materials

[0044] Weigh and dissolve 10g of sodium silicate in 40mL of water and 5g of zinc sulfate in 20mL of water to prepare a solution with a mass fraction of 20%;

[0045] Implementation effect: use UV-2700 ultraviolet spectrophotometer to measure the concentration of methylene blue to 2.5mg / L

Embodiment 3

[0047] A kind of preparation method of organic wastewater adsorption degradation agent, its concrete steps are the same as embodiment 1, except the control of following parameters:

[0048] d. Aging treatment

[0049] Add dilute sulfuric acid to the double precipitation reaction system, adjust the pH value again to reach pH=6-8, and let it stand for 2 hours to achieve the aging effect.

[0050] Implementation effect: use UV-2700 ultraviolet spectrophotometer to measure the concentration of methylene blue 2.0mg / L

[0051] Beneficial effects of the present application: (1) the preparation process enables zinc hydroxide to be evenly distributed in the silica gel, and the product is adsorbed and degraded at the same time, and has strong adsorption and degradation capabilities; (2) the adsorption degradation agent can realize regeneration and reuse, It is convenient for regeneration and saves the treatment cost of organic wastewater; (3) Use effect: the adsorption degradation agen...

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Abstract

The invention relates to a preparation method of an organic waste water adsorption degrading agent, belongs to the field of waste water treatment, and further relates to the organic waste water adsorption degrading agent which is prepared by taking sodium silicate and zinc sulfate as raw materials, taking silica gel as a carrier and taking zinc hydroxide as an active component for adsorbing organic matter in organic waste water and regenerating and recycling. The preparation method of the organic waste water adsorption degrading agent has the beneficial effects that (1) in the preparation process, zinc hydroxide can be uniformly distributed into silica gel, and the product adsorption and degradation are carried out synchronously, and the adsorption degrading agent has very high adsorption and degradation capabilities; (2) the adsorption degrading agent can be regenerated and recycled, is convenient to regenerate, and saves the processing cost of organic waste water; (3) the adsorption degrading agent has the using effects of high adsorption and decoloring capability of the adsorption degrading agent, clear effluent and stable water quality.

Description

technical field [0001] The invention belongs to the field of sewage treatment. The invention relates to a preparation method of an organic wastewater adsorption degradation agent, more specifically, using sodium silicate and zinc sulfate as raw materials to prepare an organic wastewater adsorption degradation agent with silica gel as a carrier and zinc hydroxide as an active component , Adsorb organic matter in organic wastewater and regenerate it for reuse. Background technique [0002] With the increase of my country's population, the development of economic construction and the acceleration of urbanization, the water crisis characterized by the shortage of fresh water resources, flood disasters and serious water pollution has become an important factor restricting the sustainable development of my country's economy. Organic wastewater such as printing and dyeing wastewater has complex water quality, poor biochemical properties, contains a large amount of toxic and harmfu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/06B01J20/10B01J20/30C02F1/28
Inventor 陶俊徐继红
Owner 江苏密西西比水务有限公司
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