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A microbial carrier with a core-shell structure and a floating-sinking method for treating polluted water

A microbial carrier, core-shell technology, applied in granular microbial carrier treatment, biological water/sewage treatment, chemical instruments and methods, etc., can solve the problems of expensive devices and energy consumption

Active Publication Date: 2019-04-02
北京清源中科环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] This alternation of anaerobic / aerobic microbiota can be achieved by artificially agitating the upper and lower water bodies, but the device is expensive and energy-intensive
[0007] Compared with the technical weakness of the existing sewage biological treatment that the macro-environment incompatible with aerobic / anaerobic biological reactions must be set in space or time sequence, the present invention proposes a technology for setting an aerobic / anaerobic compatible micro-environment Method, through the automatic floating of anaerobic bacteria gas production, and the release of oxygen-enriched nitrogen on the water surface to sink, a new scheme of using biological reaction to treat sewage with high efficiency and low energy consumption

Method used

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  • A microbial carrier with a core-shell structure and a floating-sinking method for treating polluted water
  • A microbial carrier with a core-shell structure and a floating-sinking method for treating polluted water

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Embodiment 1

[0032] Such as Figure 1-2 As shown, a microbial carrier with a core-shell structure described in the embodiment of the present invention includes an outer shell 1, a spherical core body 2 and a protective net cover 4, and the outer shell 1 and the spherical core body 2 are both porous microbes. Gap structure, the outer casing 1 has undergone aerobic microbial culture implantation curing treatment, the spherical core body 2 has undergone anaerobic microbial cultivation implantation curing treatment, the spherical core body is placed in the outer casing, and The outer shell 1 is covered with a layer of protective mesh 4 to prevent the carriers from colliding with each other and rubbing against the side walls.

[0033] Further, a number of foamed plastic balls 3 are placed between the core body 2 and the outer shell 1 to adjust the specific gravity, and ensure that the core body and the outer shell are arranged concentrically. Foam plastic balls are uniformly distributed betwee...

Embodiment 2

[0043] In the manufacturing method of the microorganism carrier with core-shell structure described in this embodiment, the outer shell is divided into two half-shells, which are formed by butting the two half-shells. When the two half-shells are made, the edge of the butt joint It needs to be made in the form of snap buttons for easy fastening and bonding.

[0044] The two half-shells of the outer shell and the core body are respectively kneaded and mixed from clay, activated carbon particles, carbon fiber silk raw materials, organic fibers and inorganic fiber silk, and then stamped and formed, dried in the shade, and then sintered in a protective atmosphere forming.

[0045] The two half-shells of the outer shell and the spherical core have different formula ratios due to different functions. For the outer shell and the core, please give the preferred formula ratios respectively.

[0046] Control the vaporization of the organic fibers to form pores during the sintering pro...

Embodiment 3

[0052] The floating-sinking method for treating polluted water bodies described in this example uses at least two layers of porous and microporous carriers, the outer porous and microporous structures are treated with aerobic microbial culture and implantation, and the inner porous and microporous structures are The pore structure is treated with anaerobic microbial culture implantation bed maturation, so that when the carrier sinks to the bottom of the water body, the anaerobic bacteria digest ammonia nitrogen to generate nitrogen and store it in the porous micropore structure of the carrier, and the specific gravity of the carrier decreases and floats upward to the water surface. When the carrier surfaced, the aerobic bacteria on the outer layer of the carrier began to digest the organic pollutants in the water, while keeping the anaerobic bacteria inside the anaerobic environment; when the carrier floated on the water surface, the porous micropore structure outside the carrie...

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Abstract

The invention discloses a microbial carrier with a core-shell structure. The microbial carrier comprises an outer shell, a sphere core and a protective net cover, wherein both the outer shell and the sphere core are of porous micro-gap structure, the outer shell is subjected to aerobic microorganism culture implantation and curing treatment, the sphere core is subjected to anaerobic microorganism culture implantation and curing treatment, the sphere core is arranged in the outer shell, and the outside of the outer shell is wrapped with a layer of protective net cover. The microbial carrier automatically floats upwards through aerogenesis of anaerobic bacteria and sinks due to release of oxygen-rich nitrogen on the water surface so as to efficiently utilize biological reaction for polluted water treatment at low energy consumption, plays biological reaction advantages of aerobic / anaerobic bacteria respectively for different upper-layer oxygen-rich and bottom-layer anaerobic environments of a polluted water body, and achieves efficient and low-energy-consumption polluted water degradation treatment. In addition, the invention also discloses a manufacturing method of the microbial carrier with the core-shell structure and a sinking and floating type polluted water body treatment method.

Description

technical field [0001] The invention relates to a microbial carrier with a core-shell structure and a floating-sinking method for treating polluted water, and belongs to the technical field of bioengineering for sewage treatment. Background technique [0002] The biological treatment of sewage is a natural process of microbial life process, which requires less investment and lower energy consumption than physical and chemical treatment methods. [0003] Sewage biological treatment is generally divided into aerobic microbial treatment and anaerobic microbial treatment. The oxygen environment conditions for the survival of these two types of microorganisms are diametrically opposed, and each has irreplaceable biochemical reaction advantages. In order to give full play to the different advantages of the two types of organisms, the sewage is usually separated into two processes of "anaerobic" and "aerobic" in time and space, so as to achieve efficient and thorough biodegradation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30
CPCC02F3/301C02F2003/001C02F2305/06
Inventor 罗璐
Owner 北京清源中科环保科技有限公司
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