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A packing fixing device and its application in upgrading and upgrading of sewage plants

A fixed device, sewage treatment plant technology, applied in biological treatment devices, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of biofilm aging, activation difficulties, etc., to delay the aging speed, avoid Blockage and high cost, avoid the effect of biofilm aging

Active Publication Date: 2020-07-03
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the above problems, one of the objects of the present invention is to provide a filler fixing device, which can effectively solve the problems of biofilm aging and difficult activation when fixing biological fillers by the fixed bed biofilm method;

Method used

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  • A packing fixing device and its application in upgrading and upgrading of sewage plants
  • A packing fixing device and its application in upgrading and upgrading of sewage plants
  • A packing fixing device and its application in upgrading and upgrading of sewage plants

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] This embodiment provides a packing fixing device, including a packing frame and a fixing device for installing the packing frame; the packing frame includes a hollow shaft 1 provided with a height adjustment device-5, and the packing frame is rotatably mounted on the hollow shaft 1 On the fixing device; the hollow shaft 1 is provided with a fixed ring for fixing the filler, the fixed ring is a hollow structure, and several drip holes 10 are provided on the fixed ring; the fixed ring communicates with the hollow shaft 1 through the connecting pipe 11; the fixed ring The lower hollow shaft 1 is provided with fan blades, which can drive the packing frame to rotate under the action of water flow, and the number of fan blades can be one or more, as long as the fixed frame can reach the target speed; in addition, the upper end of the hollow shaft 1 There is a liquid addition port 101 (the liquid can be functional bacterial fermentation liquid / mixed enzyme liquid / any other auxi...

Embodiment 2

[0061] In this example, the packing fixing device provided in Example 1 and the common packing fixing device were used to transform the oxidation ditch pool body of a certain sewage plant, and the influent water quality of the oxidation ditch pool body and the water quality before the transformation were respectively tested. The effluent water quality and the effluent water quality after transformation are shown in Table 1 for specific results. The water intake load / daily water intake of the oxidation ditch tank body, in this embodiment, the volume of filler fixed on the filler frame is 40% of the target tank body volume.

[0062] In this embodiment, the specific steps for improving the standard of the oxidation ditch pool body are as follows:

[0063] (1) Place the filler fixing device fixed with soft filler in the oxidation ditch pool body, adjust the height of the filler fixing device until the biological filler is completely immersed in the water body in the oxidation ditc...

Embodiment 3

[0072] In this example, the aerobic pool of a certain sewage plant was transformed by using the filler fixing device provided in Example 1, and the influent water quality of the aerobic pool, the effluent water quality before the transformation, and the effluent water quality after the transformation were respectively tested .

[0073] In this embodiment, the volume of the filler fixed on the filler frame is 60% of the volume of the target cell body.

[0074] Utilize the filler fixing device provided in embodiment 1 to transform concrete steps as follows in the present embodiment:

[0075] (1) The filler fixing device fixed with soft filler is placed in the aerobic tank, and the height of the filler fixing device is adjusted until the biological filler is completely immersed in the water body of the aerobic tank; the water inlet speed of the aerobic tank is 0.28m / s ;

[0076] (2) The speed of the stuffing frame is 2rpm, and the number of fan blades is 1 group;

[0077] (3) ...

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Abstract

The invention discloses a filler fixing device and its application in upgrading and transforming a sewage plant, belonging to the technical field of sewage treatment. It includes a packing frame and a fixing device; the packing frame includes a hollow shaft, and the packing frame is rotatably mounted on the fixing device through the hollow shaft; the hollow shaft is provided with a fixing ring for fixing the packing and a fan blade under the fixing ring; The fixed ring is a hollow structure with several drip holes; the fixed ring communicates with the hollow shaft through a connecting pipe; the fan blade drives the packing frame to rotate under the action of water flow. The upper end of the hollow shaft is provided with a liquid adding port, and a plunger is provided in the hollow shaft, and the plunger can move axially in the hollow shaft to push the liquid to move. The invention has the advantages of simple structure, reasonable design, easy manufacture, and significantly improved effect of standard upgrading and transformation.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and more specifically relates to a filler fixing device and its application in upgrading and transforming sewage plants. Background technique [0002] With the increasingly serious pollution of water bodies in my country, a series of environmental protection measures such as "Water Ten Measures" have been implemented one after another. The discharge standard of sewage treatment plants has been upgraded from the first-level B standard in the original "Pollutant Discharge Standards for Urban Sewage Treatment Plants" GB18918-2002 The original treatment units of many sewage treatment plants can no longer meet the current requirements, and the upgrading and transformation of them are imminent. [0003] The improvement of the sewage treatment plant is to improve the sewage treatment capacity and treatment efficiency by improving the original process or building additional treatment facilities w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/10C02F3/12C02F3/28C02F3/30C02F3/34
CPCC02F3/10C02F3/1257C02F3/2806C02F3/30C02F3/34Y02W10/10C02F3/341C02F3/342C02F3/109C02F3/101C02F3/08C02F3/348C02F2203/006C02F2303/06
Inventor 王瑾丰任洪强吴兵
Owner NANJING UNIV
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