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Preparation of peanut shell phosphorous removal material

A peanut shell and drying technology, which is applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of difficult regeneration of nano-adsorbents and impossibility of wastewater phosphorus removal engineering application, etc., to achieve improved adsorption and phosphorus removal efficiency, convenient separation, and low price cheap effect

Inactive Publication Date: 2018-04-17
湖北百水居水产品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Adsorption phosphorus removal technology is to use some porous or large specific surface area substances to realize the phosphorus removal process of wastewater mainly through the surface precipitation of phosphorus on the surface of the adsorbent, ion exchange or attachment adsorption, especially the nanometer that has appeared in recent years. The adsorbent has a very good phosphorus removal effect, but the nano-adsorbent is difficult to regenerate and cannot be applied in the actual wastewater phosphorus removal project

Method used

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Examples

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Embodiment Construction

[0018] Below in conjunction with specific embodiment, further illustrate the present invention. The experimental methods used in the following examples are conventional methods unless otherwise specified. The materials and reagents used in the following examples can be obtained from commercial sources unless otherwise specified. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0019] Take 10 g of peanut shells, soak them in 200 mL of 1 mol / L sodium hydroxide solution for 4 h, filter, wash with water until the pH remains constant, and dry at 30 ° C for 2 h;

[0020] Put the peanut shells obtained in step (1) into a three-necked flask, add 4mol / L 3-chloro-2-hydroxypropyltrimethylammonium chloride until the peanut shells are submerged, heat at 60°C for 2h, and filter out 3-chloro-2 -Hydroxypropyltrimethylammonium chloride, then washed 3 times with deionized water, fi...

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Abstract

The invention discloses the preparation of a material for removing phosphorus from peanut shells. Using peanut shells as a carrier, the peanut shells and a quaternary ammonium salt solution are co-heated first, so that the quaternary ammonium salts are grafted on the lignin of the peanut shells; loaded on chemically modified peanut shells. The phosphorus removal material prepared by the invention has the characteristics of good phosphorus removal effect, renewability, high stability, etc., and the phosphorus obtained in the regeneration process can be further recycled and utilized. The invention combines the quaternary ammonium salt modification and the loaded iron oxide, improves the efficiency of adsorption and phosphorus removal on the one hand, and retains the advantage of convenient separation of the loaded adsorbent and water on the other hand. In addition, the adsorbent material can be regenerated for repeated use.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to the preparation of peanut shell phosphorus removal materials. Background technique [0002] In recent years, with the continuous enhancement of human activities, a large amount of domestic sewage, industrial wastewater and chemical fertilizers rich in nitrogen and phosphorus have been used in large quantities, making the phenomenon of eutrophication in my country's water bodies increasingly serious, affecting and restricting the coordinated development of society. [0003] Adsorption phosphorus removal technology is to use some porous or large specific surface area substances to realize the phosphorus removal process of wastewater mainly through the surface precipitation of phosphorus on the surface of the adsorbent, ion exchange or attachment adsorption, especially the nanometer that has appeared in recent years. The adsorbent has a very good phosphorus removal effe...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/32
CPCB01J20/24B01J20/3206B01J2220/485
Inventor 雷胜华
Owner 湖北百水居水产品有限公司