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Suspended electrobiological filler for removing ammonia nitrogen from water, preparation method for suspended electrobiological filler and application of suspended electrobiological filler

A biological filler and water removal technology, applied in water pollutants, chemical instruments and methods, biological water/sewage treatment, etc., to achieve the effects of removing ammonia nitrogen and other pollutants, fast mold release, and good ventilation

Active Publication Date: 2013-11-06
深圳市地大东江环境研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] After nearly two decades of research, the study of suspended biological carriers in material selection, spatial structure, hydraulic characteristics, etc. has achieved good results, and has played an important role in the suspended biological carrier moving bed sewage treatment technology, but there Some issues to be innovated

Method used

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  • Suspended electrobiological filler for removing ammonia nitrogen from water, preparation method for suspended electrobiological filler and application of suspended electrobiological filler
  • Suspended electrobiological filler for removing ammonia nitrogen from water, preparation method for suspended electrobiological filler and application of suspended electrobiological filler

Examples

Experimental program
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Effect test

Embodiment 1

[0084] a. Ingredients: Iron powder 20kg, activated carbon powder 15kg, alumina 1kg, nickel oxide 1kg, titanium oxide 1kg, thallium oxide 1kg, iridium oxide 1kg, water glass 5kg, polyvinyl alcohol 5kg, bentonite molecular sieve 20kg, hollow glass microspheres 30kg.

[0085] Among the above ingredients, iron powder particle size 250-400 mesh, alumina particle size ≤ 100 nm, nickel oxide particle size ≤ 100 nm, titanium oxide particle size ≤ 100 nm, thallium oxide particle size ≤ 100 nm, iridium oxide particle size ≤ 100 nanometer material, and the activated carbon powder is ground and passed through a 250-400 mesh screen;

[0086]b. Grinding activated carbon powder and iron powder, alumina powder, nickel oxide powder, titanium oxide powder, thallium oxide powder, iridium oxide powder, water glass, polyvinyl alcohol, bentonite molecular sieve and hollow Put the glass beads into the reaction kettle and mix well, add an appropriate amount of water and mix well, and adjust to a thi...

Embodiment 2

[0089] a. Ingredients: Iron powder 15kg, graphite powder 20kg, alumina 1.5kg, nickel oxide 1.5kg, titanium oxide 1.5kg, thallium oxide 1.5kg, iridium oxide 1.5kg, aluminum silicate 3.5kg, polyvinyl alcohol 4kg, bentonite molecular sieve 30kg, hollow glass microspheres 20kg.

[0090] Among the above ingredients, iron powder particle size 250-400 mesh, alumina particle size ≤ 100 nm, nickel oxide particle size ≤ 100 nm, titanium oxide particle size ≤ 100 nm, thallium oxide particle size ≤ 100 nm, iridium oxide particle size ≤ 100 nanometer material, and the graphite powder is ground and passed through a 250-400 mesh screen;

[0091] b. the graphite powder after grinding and iron powder, aluminum oxide powder, nickel oxide powder, titanium oxide powder, thallium oxide powder, iridium oxide powder, aluminum silicate, polyvinyl alcohol, bentonite molecular sieve material and Put the hollow glass microspheres into the reaction kettle and mix well, add an appropriate amount of water...

Embodiment 3

[0094] a. Ingredients: Iron powder 15kg, activated carbon powder 15kg, alumina 2kg, nickel oxide 2kg, titanium oxide 2kg, thallium oxide 2kg, iridium oxide 2kg, high viscosity attapulgite clay powder 2kg, polyvinyl alcohol 3kg, bentonite molecular sieve 30kg, Hollow glass microspheres 25kg;

[0095] Among the above ingredients, iron powder particle size 250-400 mesh, alumina particle size ≤ 100 nm, nickel oxide particle size ≤ 100 nm, titanium oxide particle size ≤ 100 nm, thallium oxide particle size ≤ 100 nm, iridium oxide particle size ≤ 100 nanometer material, and the activated carbon powder is ground and passed through a 250-400 mesh screen;

[0096] b. Grinding activated carbon powder and iron powder, alumina powder, nickel oxide powder, titanium oxide powder, thallium oxide powder, iridium oxide powder, high-viscosity attapulgite clay powder, polyvinyl alcohol, Put the bentonite molecular sieve material and hollow glass microspheres into the reaction kettle and mix wel...

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Abstract

The invention discloses a suspended electrobiological filler for removing ammonia nitrogen from water and a preparation method for the suspended electrobiological filler. The suspended electrobiological filler comprises the following components in percentage by weight: 10 to 20 percent of iron powder, 10 to 20 percent of graphite powder or activated carbon powder, 1 to 2 percent of alumina, 1 to 2 percent of nickel oxide, 1 to 2 percent of titanium oxide, 1 to 2 percent of thallium oxide, 1 to 2 percent of iridium oxide, 20 to 30 percent of molecular sieve material, 5 to 10 percent of adhesive and 20 to 30 percent of hollow glass microspheres. The preparation method comprises the following steps of: mixing the raw materials, putting into a reaction kettle, mixing, stirring uniformly, adding the adhesive and water, preparing paste with the water content of about 20-30 percent, granulating by using a granulator or pressing into granules and blocks in a molding machine, demoulding, feeding into a baking oven, and drying at the temperature of 100 to 180 DEG C for 3 to 4h to obtain the suspended electrobiological filler. The invention also provides application of the suspended electrobiological filler. The suspended electrobiological filler can effectively remove the ammonia nitrogen from the water; and in the upgrading reconstruction of industrial wastewater treatment stations, water works and municipal sewage treatment plants, the removal efficiency of the ammonia nitrogen in the water can be improved by 15 to 40 percent, and the total discharge amount of the ammonia nitrogen and nitrate nitrogen can be controlled.

Description

technical field [0001] The present invention relates to the field of new materials, in particular to a suspension-type electro-biological filler for removing ammonia nitrogen in water and its preparation method and application, especially to the removal of ammonia nitrogen in water during the upgrading of industrial wastewater treatment stations, waterworks and municipal sewage treatment plants Suspension-type electric biofiller, preparation method and application thereof. Background technique [0002] The national "12th Five-Year" environmental protection plan has increased the types of total control of major pollutants. While continuing to promote the reduction of chemical oxygen demand (COD) pollution, ammonia nitrogen has been included in the country's binding control targets for the discharge of major water pollutants. [0003] At present, there are mainly chemical methods for the treatment of ammonia nitrogen-containing wastewater in China, including: 1) ion exchange ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/00C02F101/16
Inventor 彭云龙曾贤桂陈兆勇何双连刘宪武曾新玲邢诒白林德
Owner 深圳市地大东江环境研究院
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