Efficient purification composite biological filler and preparation method thereof

A technology of biological fillers and composite microbial agents, applied in chemical instruments and methods, water treatment of special compounds, sustainable biological treatment, etc. Response efficiency cannot be guaranteed and other problems, to achieve the effect of improving biochemical reaction efficiency, strengthening anaerobic denitrification and denitrification and phosphorus removal synergistic biochemical process, and reducing the generation of ammonia nitrogen

Pending Publication Date: 2022-05-17
江苏海绵城市技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among the existing disclosed biological fillers, the biological filter filler (invention patent CN201110134017.2) uses zeolite ore and cement as raw materials, and obtains particle fillers with a particle size of 2-10mm through pelletizing discs or extruders. Simultaneous denitrification and phosphorus removal can be achieved under the same conditions, but the filler itself only has a carrier skeleton, and the start-up time of the loaded microorganism operation is long, the synergy between the microorganism and the carrier is weak, and the water purification effect is not good.
A new type of biological filler (utility model CN201620491223.7) is made by mixing sandstone aggregate and microbial c

Method used

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  • Efficient purification composite biological filler and preparation method thereof
  • Efficient purification composite biological filler and preparation method thereof

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Effect test

Embodiment 1

[0035]The high-efficiency purification composite biological filler according to this embodiment includes a filter layer filler, a deep purification layer filler and a gravel layer filler arranged in sequence from top to bottom. The packing height of the filter layer is 600mm. The filling height of the deep purification layer is 250mm. The gravel layer packing height is 150mm. The filter layer filler is composed of quartz sand, corundum and diatomite biological ceramsite and arranged in sequence, wherein the ratio of each material is 60% of quartz sand, 25% of corundum and 15% of diatomite bioceramic. The deep purification layer filler contains composite biological filler made of quartz sand, zero-valent iron, activated carbon, composite microbial agent and porous slow-release biomass carbon source. The ratio of each material is: quartz sand 50%, zero-valent Iron 3%, activated carbon 40%, composite microbial agent 4%, porous slow-release biomass carbon source 3%.

[0036] In...

Embodiment 2

[0049] The high-efficiency purification composite biological filler according to this embodiment includes a filter layer filler, a deep purification layer filler and a gravel layer filler arranged in sequence from top to bottom. The packing height of the filter layer is 600mm. The filling height of the deep purification layer is 200mm. The gravel layer packing height is 200mm. The filter layer filler is composed of quartz sand, corundum and diatomite biological ceramsite, which are arranged in sequence, wherein the ratio of each material is 70% of quartz sand, 15% of corundum and 15% of diatomite bioceramic. The deep purification layer filler contains composite biological filler made of quartz sand, zero-valent iron, activated carbon, composite microbial agent and porous slow-release biomass carbon source. The ratio of each material is: quartz sand 50%, zero-valent 10% iron, 34% activated carbon, 3% compound microbial agent, 3% porous slow-release biomass carbon source.

[...

Embodiment 3

[0060] The high-efficiency purification composite biological filler according to this embodiment includes a filter layer filler, a deep purification layer filler and a gravel layer filler arranged in sequence from top to bottom. The packing height of the filter layer is 400mm. The filling height of the deep purification layer is 300mm. The gravel layer packing height is 150mm. The filter layer filler is composed of quartz sand, corundum, and diatomite bio-ceramic grain, which are arranged sequentially, wherein the ratio of each material is 80% of quartz sand, 12% of emery sand and 8% of diatomite bio-ceramic grain. The deep purification layer filler contains composite biological filler made of quartz sand, zero-valent iron, activated carbon, composite microbial agent and porous slow-release biomass carbon source. The ratio of each material is: quartz sand 60%, zero-valent Iron 5%, activated carbon 30%, composite microbial agent 3%, porous slow-release biomass carbon source 2...

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Abstract

The invention discloses a preparation method of an efficient purification composite biological filler, which is characterized in that the efficient purification composite biological filler comprises a filter layer filler, a deep purification layer filler and a gravel layer filler which are sequentially arranged from top to bottom; the filter layer filler is composed of quartz sand, carborundum and diatomite biological ceramsite, and zero-valent iron, activated carbon, a compound microbial agent and a porous slow-release biomass carbon source are added into the deep purification layer filler. According to the invention, nitrification and denitrification are realized in the same reactor, ideal reaction conditions are provided for biochemical reaction, physical adsorption and biochemical reaction processes are synergistically enhanced, efficient pollutant removal and water purification effects are achieved, especially, the removal effect on pollutants such as nitrogen and phosphorus is obvious, and the method is suitable for industrial production. The device has the advantages of high efficiency, integration, high durability and the like, and can be widely applied to water treatment facilities such as constructed wetlands, ecological filters, water treatment biological unit modules, rainwater gardens, ecological oxidation ponds and the like.

Description

technical field [0001] The invention belongs to the technical field of water purification, and in particular relates to a high-efficiency purification composite biological filler for water purification treatment and a preparation method thereof. Background technique [0002] Commonly used water purification methods include physical, chemical and biological methods, among which physical methods often fail to achieve the desired effect when used alone, and the by-products produced by chemical methods may cause secondary pollution. In contrast, biological methods have low energy consumption and ecological , safety, and high efficiency, among which the application of microorganisms has become an important means of biological treatment of sewage. There are many ways to use microbial agents, including direct dosing, carrier immobilization, etc. Among them, the microbial carrier immobilization method provides an ideal space for the contact reaction between microorganisms and pollut...

Claims

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Application Information

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IPC IPC(8): C02F3/10C02F3/28C02F3/34C02F101/10C02F101/16C02F101/34C02F101/36C02F101/38
CPCC02F3/10C02F3/107C02F3/28C02F3/34C02F2101/105C02F2101/16C02F2101/36C02F2101/38C02F2101/34C02F2305/06Y02W10/10
Inventor 李秀玉郭雨灵
Owner 江苏海绵城市技术研究院有限公司
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