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Braided fabric framework biological membrane material for targeted wastewater treatment and preparation method of braided fabric framework biological membrane material

A biofilm, targeted technology, applied in the fields of special compound water treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc. problem, to achieve the effect of good film hanging effect, good collection ability and convenient film hanging

Active Publication Date: 2021-11-09
佛山市南海区苏科大环境研究院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide an improved biofilm material and its preparation method by overcoming the problems of insufficient carbon source, long film-hanging time, and microorganisms being easily affected by the environment in the biofilm method of the prior art.

Method used

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  • Braided fabric framework biological membrane material for targeted wastewater treatment and preparation method of braided fabric framework biological membrane material
  • Braided fabric framework biological membrane material for targeted wastewater treatment and preparation method of braided fabric framework biological membrane material
  • Braided fabric framework biological membrane material for targeted wastewater treatment and preparation method of braided fabric framework biological membrane material

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Embodiment 1

[0052] The braided structure biofilm material provided in this embodiment includes a biochar skeleton, a plastic film layer wrapped outside the biochar skeleton, and an organic matter layer wrapped outside the plastic film layer, wherein the organic matter layer contains a targeted nutrient source for microorganisms , in this example, the targeted nutrient source is urea.

[0053] The raw materials for preparing the biofilm material include biochar skeleton, sodium alginate, calcium salt, acetate starch and urea, wherein the viscosity average molecular weight of sodium alginate is 185000.

[0054] The schematic diagram of the technological process of the biofilm material preparation of this example, as figure 1 As shown, has the following steps:

[0055] (1) Preparation of biochar skeleton

[0056] Use a ribbon loom to alternately weave rush and nylon threads to make it a regular rush board with ductility, and then use 5kg of calcium carbonate slabs to press 65,000 Pa on the...

Embodiment 2

[0065] The braided fabric biofilm material provided in this example differs from Example 1 in that the mass ratio of acetate starch to urea in step 22) is 8:2. All the other are with embodiment 1.

Embodiment 3

[0067] The braided fabric biofilm material provided in this example differs from Example 1 in that the mass ratio of acetate starch to urea in step 22) is 8:4. All the other are with embodiment 1.

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Abstract

The invention relates to a braided fabric framework biological membrane material for targeted wastewater treatment and a preparation method of the braided fabric framework biological membrane material. The biological membrane material comprises a biochar framework, a plastic membrane layer wrapping the biochar framework and an organic matter layer wrapping the plastic membrane layer, wherein the organic matter layer contains a microbial targeted nutrient source. According to the biological membrane material, the microbial targeted nutrient source is wrapped in the organic matter layer, so a biofilm culturing process is optimized, and raw water biofilm culturing is achieved; compared with traditional biofilm culturing, cost is low, and biofilm culturing effect is good; and meanwhile, the organic matter layer provides a good carbon source for microorganisms, so biofilm culturing is more convenient and more economical. According to the invention, biochar is subjected to structure stabilization, and the problems that existing biochar is poor in structure and difficult to collect after being applied are solved. When the biological membrane material is used for treating wastewater containing heavy metal ions and the like, a removal rate is high; and the biological membrane material has good collection capacity, the structural form of the biological membrane material can be kept in the wastewater for a long time without loosening, and the biological membrane material has good engineering application value.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a braided structure biofilm material for targeted wastewater treatment and a preparation method thereof. Background technique [0002] Biochar is an emerging adsorption material in the environmental field. It is a material with high adsorption performance formed by carbonization of organic or inorganic substances at high temperature. Its adsorption performance is mainly determined by the carbonization temperature, its own material and material structure. Studies have shown that biochar has good adsorption properties for pollutants such as ammonia nitrogen, phosphorus and heavy metal ions in wastewater. At present, biochar is widely used in various processes of wastewater treatment. The main problem is that its unique loose porous structure leads to the loosening of its macrostructure. Low strength and so on. [0003] The biofilm method refers to the met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/00C02F101/10C02F101/16C02F101/20
CPCC02F3/00C02F2101/16C02F2101/20C02F2101/105C02F2305/06Y02W10/10
Inventor 李尚珂史广宇胡嘉源余志强
Owner 佛山市南海区苏科大环境研究院
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