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A biological desulfurization active granule capable of realizing bacterial group partition, its preparation method and application

A biological desulfurization and active particle technology, applied in the field of environmental biology, can solve the problems of increasing system complexity, increasing equipment and operating costs, etc.

Active Publication Date: 2021-09-14
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this process requires good coordination between the two bioreactors, which increases the complexity of the system and increases equipment and operating costs.

Method used

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  • A biological desulfurization active granule capable of realizing bacterial group partition, its preparation method and application
  • A biological desulfurization active granule capable of realizing bacterial group partition, its preparation method and application
  • A biological desulfurization active granule capable of realizing bacterial group partition, its preparation method and application

Examples

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Effect test

preparation example 1

[0083] This preparation example provides a biological desulfurization active granule that can realize the division of bacterial flora according to the present invention, and its preparation method is as follows:

[0084] (1) Using liquid medium a, under the condition of oxygen supply, vibrating halophilic thiaophilic vibrio D301 was shaken. When the OD value of the culture medium reached 6, the sulfur particles were collected by centrifugation to obtain the biosulfur core with a particle size of 6 μm. ;

[0085] (2) Add the biosulfur core obtained in step (1) into the liquid medium b, and under anaerobic conditions, vibrate and cultivate the composite flora consisting of Desulfovibrio, Desulfobacillus and Desulfovibriobacter, cultivate for 15 days, and settle naturally for 1 hour , to collect the product, the particle size is 15 μm;

[0086] (3) Add the product obtained in step (2) to liquid medium a, and under the condition of oxygen supply, vibrating halophilic thialophilic...

preparation example 2

[0090] This preparation example provides a biological desulfurization active granule that can realize the division of bacterial flora according to the present invention, and its preparation method is as follows:

[0091] (1) Using liquid culture medium a, under the condition of oxygen supply, vibrating culture Thiomicrospira BDL05, when the OD value of the culture medium reaches 7, centrifuge to collect the sulfur particles to obtain the biosulfur core with a particle size of 8 μm;

[0092] (2) Add the biosulfur core obtained in step (1) into the liquid medium b, and under anaerobic conditions, vibrate and cultivate the composite flora consisting of Desulfovibrio, Desulfobacillus and Desulfovibriobacter, and after culturing for 20 days, settle naturally for 1 hour , to collect the product, the particle size is 20 μm;

[0093] (3) Add the product obtained in step (2) to liquid medium a, and culture Thiomicrospira BDL05 with vibration under the condition of oxygen supply. After ...

preparation example 3

[0097] This preparation example provides a biological desulfurization active granule that can realize the division of bacterial flora according to the present invention, and its preparation method is as follows:

[0098] (1) Using liquid culture medium a, under the condition of oxygen supply, vibratingly culture Thioalkali Bacillus BDH06, when the OD value of the culture solution reaches 9, centrifuge to collect the sulfur particles to obtain the biosulfur core with a particle size of 10 μm;

[0099] (2) Add the biosulfur core obtained in step (1) into the liquid medium b, and under anaerobic conditions, vibrate and cultivate the composite flora consisting of Desulfovibrio, Desulfobacillus and Desulfovibriobacter, and after culturing for 10 days, settle naturally for 1 hour , to collect the product, the particle size is 20 μm;

[0100] (3) Add the product obtained in step (2) to liquid medium a, under the condition of oxygen supply, vibrate and cultivate Thioalkali BDH06, afte...

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Abstract

The present invention relates to a biological desulfurization active granule capable of realizing bacterial group partitioning and its preparation method and application. The biological desulfurization active granule comprises a biosulfur inner core and a halophilic, alkalophilic, sulfur-reducing bacteria layer covering the biosulfur inner core and a layer of halophilic and alkalophilic sulfur-oxidizing bacteria covering the layer of halophilic and alkalophilic sulfur-reducing bacteria. The biological desulfurization active granule uses the biological sulfur inner core as a carrier, the inner anaerobic zone is composed of halophilic and alkaliphilic sulfur-reducing bacteria, and the outer aerobic zone is composed of halophilic and alkaline-philic sulfur-oxidizing bacteria. The biological desulfurization active particles have the ability to oxidize sulfide to generate elemental sulfur and reduce sulfate to generate sulfide. Using the growth characteristics of sulfur oxidizing bacteria and sulfur reducing bacteria, the two are rationally integrated into the biological desulfurization active particles to realize sulfur The connection of oxidation and sulfur reduction processes solves the problem of sulfate accumulation, improves system stability and enhances desulfurization effect.

Description

technical field [0001] The invention belongs to the field of environmental biology technology, and relates to a biological desulfurization active granule and its preparation method and application, in particular to a biological desulfurization active granule capable of realizing bacterial group division, its preparation method and application. Background technique [0002] Biological desulfurization technology can oxidize sulfide in gas or water phase to generate elemental sulfur at normal temperature and pressure, and discharge it from the system. Compared with traditional physical and chemical methods, biological desulfurization technology has the advantages of mild conditions, no secondary pollution, and no system blockage. It has been applied to desulfurization projects such as wastewater and waste gas. The sulfur-oxidizing bacteria used in this technique can convert S 2- It is oxidized to elemental sulfur to form a sulfur particle discharge system to achieve the purpos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N11/00B01D53/52B01D53/84B01D53/48C02F3/34C02F101/10C02F103/18C02F103/24C02F103/34C02F103/36
CPCB01D53/52B01D53/78B01D53/84B01D2251/304B01D2251/604B01D2251/606B01D2251/95C02F3/34C02F3/345C02F2101/101C02F2103/18C02F2103/24C02F2103/34C02F2103/343C02F2103/365C10G70/00C10L3/103Y02E50/30Y02P20/59Y02A50/20
Inventor 杨茂华邢建民苗得露穆廷桢
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI