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Aerobic tank floating filler as well as preparation method and application thereof

A technology of floating packing and aerobic pool, which is applied in chemical instruments and methods, control of water treatment parameters, water/sludge/sewage treatment, etc. It can solve problems such as uneven mixing, low treatment efficiency, and low oxygen utilization rate. Achieve the effect of improving treatment efficiency and treatment effect, high economic benefit and environmental effect, and improving oxygen utilization rate

Pending Publication Date: 2022-06-28
STATE GRID HEBEI ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aerobic reaction is the main technology of sewage treatment, and it is also one of the relatively mature technologies. However, conventional aerobic reactors generally transport the gas to the bottom of the reactor through a blower, and then release it through a microporous aerator, thereby increasing the waste water. However, the bubbles produced by this method are too large, the mixing is uneven, and the oxygen mass transfer effect is low, resulting in a low oxygen utilization rate, and because the oxygen generally stays in the wastewater for a short time, it is generally good Oxygen reactors have the problems of high gas-water ratio, high energy consumption and low treatment efficiency

Method used

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  • Aerobic tank floating filler as well as preparation method and application thereof

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preparation example Construction

[0033] In order to obtain the floating filler with uniform particle size and good sphericity, the embodiment of the present application also provides a preparation method of the floating filler, including the following steps:

[0034] Step a, weigh each component according to the designed ratio, add the weighed components into the reaction kettle and mix evenly, react at 65°C to 70°C for 2h to 2.5h to obtain an emulsion; in the reaction kettle at 65°C Under the condition of ~70°C, each material forms a eutectic, and styrene and divinylbenzene react to form a styrene resin;

[0035] Step b, discharging the emulsion into an aqueous gelatin solution for molding, vacuum extracting a pore-forming agent and an aqueous gelatin solution, and drying to obtain the floating filler in the aerobic tank; discharging the emulsion obtained by the reaction into an aqueous gelatin solution After that, spherical floating beads are formed, and the diameter of the floating filler can be controlled...

Embodiment 1

[0038] The embodiment of the present invention provides an aerobic tank flotation filler, comprising the following components by mass percentage:

[0039] A floating filler for an aerobic pool, which is a spherical porous structure, and includes the following components by mass percentage: 0.1% of float beads, 3% of polypropylene, 1.5% of aluminum oxide, 2% of xylene, and the balance of benzene Vinyl resin monomer;

[0040] Wherein, the styrene-based resin monomer is styrene and divinylbenzene with a mass ratio of 67:33; the particle diameters of the floating beads and aluminum oxide are less than 500 mesh.

[0041]The preparation method of the above-mentioned aerobic tank floating filler, specifically comprises the following steps:

[0042] In step a, the float beads and the aluminum oxide are respectively ground, and sieved through a 500-mesh sieve for use.

[0043] In step b, each component is weighed according to the designed ratio, and the weighed component is added to ...

Embodiment 2

[0046] The embodiment of the present invention provides an aerobic tank flotation filler, comprising the following components by mass percentage:

[0047] A floating filler for an aerobic pool, which is a spherical porous structure, and comprises the following components by mass percentage: 0.3% of float beads, 2% of polypropylene, 1% of aluminum oxide, 1.5% of xylene, and the balance is benzene Vinyl resin monomer;

[0048] Wherein, the styrene-based resin monomer is styrene and divinylbenzene with a mass ratio of 69:31; the particle diameters of the floating beads and aluminum oxide are less than 500 mesh.

[0049] The preparation method of the above-mentioned aerobic tank floating filler, specifically comprises the following steps:

[0050] In step a, the float beads and the aluminum oxide are respectively ground, and sieved through a 500-mesh sieve for use.

[0051] In step b, each component is weighed according to the designed ratio, and the weighed component is added t...

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Abstract

The invention relates to the technical field of water treatment, and particularly discloses an aerobic tank floating filler as well as a preparation method and application thereof. The aerobic tank floating filler is of a spherical porous structure and comprises the following components in percentage by mass: 0.1-0.5% of floating beads, 2-3% of polypropylene, 1-2% of aluminum oxide, 1-2% of a pore-forming agent and the balance of a styrene resin monomer. The spherical porous floating filler prepared by the invention can float on the surface of wastewater in an aerobic reaction tank to form a floating layer, the floating layer can enrich oxygen escaping from the wastewater and effectively reduce the oxygen escaping from the aerobic tank, and when the concentration of the oxygen in the wastewater is reduced, the oxygen enriched in the floating filler can be re-dissolved in water, so that the oxygen concentration is reduced. According to the invention, high dissolved oxygen concentration in the wastewater is always maintained, the gas-water ratio is reduced, and the biological aerobic treatment efficiency and treatment effect are effectively improved, so that the effluent quality after wastewater treatment is improved, the operation energy consumption is reduced, and the method has high popularization and application values.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to an aerobic pond floating filler and a preparation method and application thereof. Background technique [0002] With the development of my country's economy and the acceleration of urbanization, the problem of water resources has become increasingly prominent. In order to strengthen the protection and management of water resources, higher requirements are put forward for the indicators in each direction of sewage discharge. The use of aerobic microorganisms to carry out microbial metabolism under aerobic conditions to degrade organic matter in sewage is a harmless sewage treatment method. The method has the advantages of high efficiency and energy saving, small footprint, impact load resistance, and convenient operation and management. environmental and social benefits. [0003] Aerobic reaction is the main technology of sewage treatment and one of the more mature tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/10C02F101/30
CPCC02F3/108C02F3/105C02F3/109C02F2209/22C02F2101/30Y02W10/10
Inventor 张立军刘克成曾四鸣石荣雪侯海萍侯文龙
Owner STATE GRID HEBEI ELECTRIC POWER RES INST
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