A kind of biological filler for strengthening the adsorption of phosphorus and its preparation method and use

A biological filler and phosphorus adsorption technology, applied in chemical instruments and methods, sustainable biological treatment, biological water/sewage treatment, etc., can solve the problems affecting the treatment effect, investment cost and operating cost, etc. Low cost and good dimensional stability

Active Publication Date: 2018-11-13
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the biofilm method, the biological filler directly affects the treatment effect, investment cost and operating cost.

Method used

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  • A kind of biological filler for strengthening the adsorption of phosphorus and its preparation method and use
  • A kind of biological filler for strengthening the adsorption of phosphorus and its preparation method and use
  • A kind of biological filler for strengthening the adsorption of phosphorus and its preparation method and use

Examples

Experimental program
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Effect test

preparation example Construction

[0037] In the preparation method of the present invention, the adsorptive properties of diatomite are innovatively used, and when the marble is foamed with glass, the biofiller produced not only has the characteristics of the filler itself, but also has good adsorption of phosphorus in water. This effect. This is an improvement over biological fillers and provides new application areas for cellular glass. Phosphorus removal by adsorption method is to use the adsorption affinity of some porous or large specific surface solid substances to phosphate ions in water to realize the process of phosphorus removal from wastewater.

[0038] The diatomite used in the present invention is common siliceous ore; the glass used can be discarded flat glass, embossed glass, bottle glass or cathode ray tube glass, etc. for recycling. Borax is used as a flux, which can increase the foaming temperature range and make the sample foam in a larger temperature range; improve the pore structure, make...

Embodiment 1

[0040] The waste glass and marble are ground to more than 200 mesh, and 18g of glass powder and 2g of marble powder are mixed to obtain a powder batch material, which is used to prepare biological filler through foaming and annealing treatment. Waste glass can be discarded flat glass, patterned glass, bottle glass or cathode ray tube glass, etc. The specific preparation method of biological filler is:

[0041] The powder batch prepared above is piled into the mold in the box-type resistance furnace, and the powder batch is rapidly cooled in the box-type resistance furnace after preheating, heating and foaming to obtain sintered foam heating Then take the sintered and foamed heating material out of the resistance furnace and cool it naturally to room temperature to obtain the biological filler with adsorption effect. The specific temperature control is as follows: from room temperature to 500 °C at a heating rate of 15 °C / min, Insulate for 30 minutes; then heat up to 1000°C at...

Embodiment 2

[0052] Grind waste glass, marble, borax and sodium phosphate dodecahydrate to more than 200 meshes, get 18g glass powder, 2g marble powder, 0.5g borax powder and 0.5g sodium phosphate dodecahydrate powder to mix to obtain powder batch material, use The biological filler is prepared by foaming and annealing. The specific preparation method of the biological filler is the same as that of Example 1, but there are differences in the specific temperature control.

[0053] In this embodiment, the temperature control is as follows: from room temperature to 400°C at a heating rate of 10°C / min, and keep warm for 20 minutes; The cooling rate is to reduce the temperature to 800° C., and finally cool naturally to normal temperature to obtain the biological filler. The basic physical and chemical properties of the filler obtained by sintering are roughly the same as those in Example 1.

[0054] Also verify the adsorption effect of the biofiller prepared in this example according to the t...

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Abstract

The invention discloses biological stuffing capable of absorbing phosphorus intensively and a preparation method and application thereof. The stuffing is prepared with kieselguhr and glass, and the preparation method comprises the steps of firstly, mixing the kieselguhr with the glass, conducting ball milling, obtaining a powder batch mixture, then conducting foaming and annealing treatment, and obtaining the novel biological stuffing, wherein the kieselguhr which is used is common silicious rock, and the glass can be waste sheet glass. The biological stuffing has the main effect and advantages that the preparation process is simple, the obtained biological stuffing has good absorbing effect on the phosphorus, by means of porous structures which are formed simultaneously, biomembrane loading is faciliated, environmental protection problems are solved, and meanwhile high economic benefits are acquired. In addition, the biological stuffing can achieve good effect in constructed wetland and a biological filter tank, and the biological stuffing has the advantages of being low in application cost and long in application cycle.

Description

technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to a biological filler for strengthening adsorption of phosphorus, a preparation method and application thereof. Background technique [0002] There are many sewage treatment methods, the application advantages of biofilm method, and the emergence of membrane technology have reduced the phenomenon of water pollution. With the continuous development of cities, emerging industries continue to emerge, and the phenomenon of environmental pollution is also accelerating the deterioration. Therefore, my country's water treatment industry is also accelerating the update of technology according to the development needs of the environment. Biofilm technology is used in sewage treatment to relieve the water treatment pressure of enterprises and the pollution of sewage to people's living environment. In the field of sewage treatment, biological filler is mainly used in biof...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/00C02F3/32C02F101/16C02F101/10
CPCY02W10/10
Inventor 梁志伟何李宜王存豹
Owner ZHEJIANG UNIV
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