Annular flow-pushing type microfauna biological bed and method for treating wastewater sludge with the same

A sewage sludge and biological bed technology, applied in biological water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc. Low cost, prevention of short flow and siltation, small footprint

Active Publication Date: 2015-12-23
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the disadvantages of poor sludge reduction effect when the existing device treats sewage, and can not be coupled with th

Method used

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  • Annular flow-pushing type microfauna biological bed and method for treating wastewater sludge with the same
  • Annular flow-pushing type microfauna biological bed and method for treating wastewater sludge with the same
  • Annular flow-pushing type microfauna biological bed and method for treating wastewater sludge with the same

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Experimental program
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specific Embodiment approach 1

[0024] Specific embodiment 1: This embodiment is a kind of annular push-flow micro-animal biological bed, which includes a mud inlet device, a mud discharge device, a filler 5, a push-flow device 6 and a perforated wall 7;

[0025] The annular push-flow micro-animal biological bed is provided with two-stage, three-stage or multi-stage micro-animal biological beds;

[0026] When the annular plug-flow micro-animal biological bed is provided with two-level, three-level or multi-level micro-animal biological beds, there is a ring between each two-level micro-animal biological bed;

[0027] The mud feeding device is arranged at the center or periphery of the annular plug-flow micro-animal biological bed;

[0028] The mud discharge device is arranged at the center or periphery of the annular plug-flow micro-animal biological bed;

[0029] When the mud feeding device is arranged at the center of the annular plug-flow micro-animal biological bed, the mud discharge device is arranged ...

specific Embodiment approach 2

[0043] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is: an annular plug-flow type micro-animal biological bed is set in the way of central mud feeding and peripheral mud discharge; the mud feeding device is arranged in a circular plug-flow type The center of the micro-animal biological bed; the mud discharge device is arranged at the periphery of the annular plug-flow type micro-animal biological bed; the mud inlet device consists of a mud inlet pipe 1, a central pipe 2, a water inlet shaft 3 and a stable The flow tube 4 is composed of; the water inlet shaft 3 is provided with a center pipe 2 and a mud inlet pipe 1, and the mud inlet pipe 1 communicates with the center pipe 2; the steady flow tube 4 is arranged at the upper end of the water inlet shaft 3, and communicate with the central tube 2;

[0044] The mud discharge device is composed of an overflow weir 14 and a mud discharge pipe 15; Other steps are the same as in the first e...

specific Embodiment approach 3

[0045] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that: an annular push-flow micro-animal biological bed is set in such a way that mud is fed into the periphery and mud is discharged from the center; the mud feeding device is arranged in At the periphery of the annular plug-flow micro-animal biological bed; the mud discharge device is arranged at the center of the annular plug-flow micro-animal biological bed; the mud inlet device consists of a mud inlet pipe 1, a water distribution tank 16 and an overflow The weir 14 is composed of; the described water distribution tank 16 is arranged on the outer wall of the outermost micro-animal biological bed, and the overflow weir 14 is arranged inside the water distribution tank 16 and is connected with the outermost micro-animal biological bed; The mud pipe 1 is arranged on the upper part of the water distribution tank 16 and communicates with the water distribution tank 16;

[0046] The mud discharge d...

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Abstract

The invention relates to a microfauna biological bed and a method for treating wastewater sludge with the same, in particular to an annular flow-pushing type microfauna biological bed and a method for treating wastewater sludge with the same. The microfauna biological bed and the method aim at overcoming the defects that when wastewater is treated through an existing device, the sludge reducing effect is poor, and the device can not be efficiently and integrally coupled with a circular water treatment technology. The annular flow-pushing type microfauna biological bed comprises a sludge inlet device, a sludge outlet device, packing, flow pushing devices and perforated walls. The annular flow-pushing type microfauna biological bed comprises two stages or three stages or multiple stages of microfauna biological bed bodies; the packing is evenly arranged inside the microfauna biological bed bodies, the flow pushing devices are evenly arranged inside the microfauna biological bed bodies, and each perforated wall is arranged between every two adjacent stages of microfauna biological bed bodies. The microfauna biological bed is suitable for treating the wastewater sludge.

Description

technical field [0001] The invention relates to a micro-animal biological bed and a method for using it to treat sewage sludge. Background technique [0002] The activated sludge method is mostly used in the treatment of urban wastewater in our country. It has the advantages of strong impact resistance, ability to degrade organic matter, and good treatment effect. However, this method will produce a large amount of excess sludge during operation. The remaining sludge is rich in harmful substances such as organic matter, heavy metals, and pathogenic microorganisms. Improper treatment will lead to serious environmental problems. [0003] Sludge process reduction technology is a technology that develops a sludge treatment unit that is effectively coupled with the sewage treatment process, and realizes the reduction of sludge production in the process of sewage treatment. Compared with traditional terminal treatment technologies such as landfill and incineration, this technolog...

Claims

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Application Information

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IPC IPC(8): C02F3/32
Inventor 田禹崔皓王雨芊叶雪松
Owner HARBIN INST OF TECH
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