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Multimedia baffled biological aerated filter and application thereof

A biological aerated filter and multi-media technology, applied in the field of sewage treatment, can solve problems such as unsatisfactory treatment effect and wastewater discharge standards, achieve enhanced simultaneous removal effect, reduce infrastructure and operating costs, and compact device structure Effect

Inactive Publication Date: 2016-01-06
HANGZHOU DINGLONG ENVIRONMENTAL PROTECTION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The effect of single aerobic and anaerobic treatment is not ideal. At present, the wastewater from farms generally adopts anaerobic + aerobic biochemical mixed treatment technology, but most of the treated wastewater still does not meet the discharge standards.

Method used

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  • Multimedia baffled biological aerated filter and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Multi-media baffle biological aerated filter, such as figure 1As shown, it includes a two-stage biological aerated filter 1 and a water hole 2, and the two-stage biological aerated filter 1 is connected through the water hole 2 on the lower side; the two-stage biological aerated filter 1 is provided with a packing layer, The packing layers are the first packing layer 31 and the second packing layer 32 from top to bottom, and the first packing layer 31 is immobilized with microorganisms and / or biological enzymes. The first packing layer 31 is polyurethane biosponge packing with microorganisms and / or biological enzymes fixed, and the second packing layer 32 is zeolite and granular activated carbon.

[0036] The two-stage biological aerated filter 1 is a first-stage biological aerated filter 11 and a second-stage biological aerated filter 12, the upper side of the first-stage biological aerated filter 11 is provided with a water inlet pipe 111, and the second-stage aerated...

Embodiment 2

[0043] Multi-media baffle biological aerated filter, such as figure 1 As shown, it includes a two-stage biological aerated filter 1 and a water hole 2, and the two-stage biological aerated filter 1 is connected through the water hole 2 on the lower side; the two-stage biological aerated filter 1 is provided with a packing layer, The packing layers are the first packing layer 31 and the second packing layer 32 from top to bottom, and the first packing layer 31 is immobilized with microorganisms and / or biological enzymes. The first packing layer 31 is polypropylene foam filter beads immobilized with microorganisms and / or biological enzymes, and the second packing layer 32 is one of volcanic rock, ceramsite, and quartz sand.

[0044] The two-stage biological aerated filter 1 is a first-stage biological aerated filter 11 and a second-stage biological aerated filter 12, the upper side of the first-stage biological aerated filter 11 is provided with a water inlet pipe 111, and the s...

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Abstract

The invention relates to the technical field of sewage treatment and discloses a multimedia baffled biological aerated filter. The multimedia baffled biological aerated filter comprises two stage biological aerated filters (1) and a rinsing hole (2), wherein the two stage biological aerated filters (1) are communicated through the rinsing hole (2) on the lower side; packing layers are arranged in the two stage biological aerated filters (1) and are successively a first packing layer (31) and a second packing layer (32) from top to bottom, and microorganisms and / or bio-enzymes are fixed in the first packing layer (31). The invention further discloses an application of the multimedia baffled biological aerated filter. According to the multimedia baffled biological aerated filter disclosed by the invention, down-flow type and up-flow type filters are arranged in a same aerated filter system, so that the device is compact in structure and the occupied area is reduced. The first stage biological aerated filter is mainly used for removing organic matters in sewage and reducing organic load entering into the second stage biological aerated filter, so that nitrification of the second stage biological aerated filter is facilitated. In the second stage aerated biological filter, organic matters in sewage is further removed, and nitrification is carried out under a low organic load.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, relates to a multi-media baffle aerated biological filter, in particular to the application of a multi-media baffle aerated biological filter. Background technique [0002] Livestock and poultry breeding wastewater has a lot of suspended solids, high ammonia nitrogen concentration, high organic concentration, and strong odor. In terms of its discharge, the discharge of organic matter in COD equivalent is twice the discharge of industrial and urban domestic waste, and It also contains characteristics such as pathogens excreted with livestock and poultry, which is difficult to handle and it is difficult to meet the discharge standards after traditional processing. [0003] At present, most of the aquaculture wastewater adopts natural biological treatment technology, anaerobic treatment technology, aerobic treatment technology, mixed treatment technology and other biological treatment proce...

Claims

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Application Information

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IPC IPC(8): C02F3/30C02F103/20
Inventor 徐雪祥詹参明陈锋段冬燕
Owner HANGZHOU DINGLONG ENVIRONMENTAL PROTECTION SCI & TECH
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