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Synergistic denitrification composite suspension filler, its preparation method and application

A suspended filler and denitrification technology, applied in the field of water treatment, can solve the problems of low denitrification efficiency and low filler utilization rate, and achieve good denitrification performance, enhanced removal effect, and convenient use

Active Publication Date: 2020-11-17
北京涞澈科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] For this reason, the present invention provides a synergistic denitrification composite suspension filler, its preparation method and its application to solve the problems of low denitrification efficiency and low filler utilization rate in the prior art

Method used

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  • Synergistic denitrification composite suspension filler, its preparation method and application
  • Synergistic denitrification composite suspension filler, its preparation method and application
  • Synergistic denitrification composite suspension filler, its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0044] This example provides a heterotrophic sulfur autotrophic synergistic denitrification composite suspension filler to strengthen the denitrification of sewage in the anoxic section of municipal sewage treatment. The filler is granular with a particle size of 6 mm and a specific gravity of 0.95 g / cm 3 , porosity is 46.8%; described filler contains elemental sulfur, coal powder, calcium carbonate, and described elemental sulfur is sulfur, and the mass ratio of sulfur, coal powder, calcium carbonate is 3.5:3:1.5; With 80-200 purpose Egg shell powder is the raw material to form the calcium carbonate material in the filler.

[0045] Among them, coal powder is used as the carbon source of the heterotrophic denitrifying bacteria group, and the heterotrophic denitrifying bacteria group is a fungal community mainly composed of white rot fungi as the first-level community after domestication, and the metabolites of the fungal community are used as nutrients. Denitrification seconda...

Embodiment 2

[0057] This example provides a heterotrophic sulfur autotrophic synergistic denitrification composite suspension filler, which is used in rural sewage treatment composite equipment. The filler is particles with a particle size of 5 mm and a specific gravity of 0.90 g / cm 3 , porosity 52.5%; Contain elemental sulfur, coal powder, calcium carbonate in the described packing, described elemental sulfur is sulfur, the mass ratio of sulfur, coal powder, calcium carbonate is 3:3:1.5; With 80-200 purpose Egg shell powder is the raw material to form the calcium carbonate material in the filler.

[0058] Among them, coal powder is used as the carbon source of the heterotrophic denitrifying bacteria group, and the heterotrophic denitrifying bacteria group is a fungal community mainly composed of white rot fungi as the first-level community after domestication, and the metabolites of the fungal community are used as nutrients. Denitrification secondary community dominated by Tauerella, Pse...

Embodiment 3

[0070] This example provides a heterotrophic sulfur autotrophic synergistic high-efficiency denitrification suspension filler, which is used in equipment such as biofilters and biological fluidized beds. The filler is a particle with a particle size of 8 mm and a specific gravity of 1.01 g / cm 3 , porosity 46.2%; Contain elemental sulfur, coal powder, calcium carbonate in the described packing, described elemental sulfur is sulfur, the mass ratio of sulfur, coal powder, calcium carbonate is 2:1.5:1; With 80-200 purpose Egg shell powder is the raw material to form the calcium carbonate material in the filler.

[0071] Among them, coal powder is used as the carbon source of the heterotrophic denitrifying bacteria group, and the heterotrophic denitrifying bacteria group is a fungal community mainly composed of white rot fungi as the first-level community after domestication, and the metabolites of the fungal community are used as nutrients. Denitrification secondary community domi...

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Abstract

The invention provides a synergistic denitrification composite suspended filler which comprises, in volume ratio in the filler, 30-35% of elemental sulfur, 12-18% of calcium carbonate and 25-30% of pulverized coal. The filler is a granular suspended material. The problems of low denitrification efficiency and low filler utilization rate in the prior art are solved.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a synergistic denitrification composite suspension filler, a preparation method and an application thereof. Background technique [0002] Eutrophication of water body is a prominent phenomenon in surface water pollution and has a serious impact on human production and life. It not only reduces the ornamental value of water body, but also endangers the survival of human beings and organisms, and increases the cost of sewage treatment. The increase of elemental nitrogen in water body is one of the root causes of eutrophication. Various forms of nitrogen in nature can be converted into nitrate nitrogen. As the national and local governments at all levels continue to advance the requirements for upgrading and reforming the secondary effluent water quality standards of sewage treatment plants, how to efficiently remove nitrogen is the focus of government department...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/28C02F101/16
CPCC02F3/2806C02F2101/16
Inventor 陈方鑫何芳芳冯传平彭彤何琦吴康陈男
Owner 北京涞澈科技发展有限公司
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