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Device for filtering livestock and poultry breeding wastewater and recovering filter materials

A livestock and poultry breeding wastewater and recovery device technology, which is applied in the field of livestock and poultry breeding wastewater pretreatment devices, can solve the problems of easy clogging of sand filters and secondary pollution, and achieve resource utilization, small footprint, and structural compact effect

Active Publication Date: 2015-09-23
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sand filter technology is easy to clog and requires regular backwashing, and the backwashing fluid will cause double pollution

Method used

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  • Device for filtering livestock and poultry breeding wastewater and recovering filter materials
  • Device for filtering livestock and poultry breeding wastewater and recovering filter materials
  • Device for filtering livestock and poultry breeding wastewater and recovering filter materials

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Embodiment Construction

[0017] like figure 1 , 2 , 3 and 4, a livestock and poultry breeding waste water filtration and filter material recovery device, the device shell is composed of a front wall 1, a rear wall 2, a left wall 3, and a right wall 4, and the interior of the main body of the device is sequentially as follows from top to bottom : Water distribution feed area A, self-stirring filter area B, water collection and drainage area C; water inlet pipe A1 in the water distribution feed area A connects the drainage tank A2 from the right wall 4, and the drainage tank A2 connects two U-shaped perpendicular to it Distribution tank A3, the upper part of the U-shaped distribution tank A3 is provided with a triangular weir A4; the feed port A5 is connected to the feed pipe A6, and the feed pipe A6 is installed between two U-shaped distribution tanks A3; the U-shaped distribution tank A3 and feeding pipe A6 are supported and fixed by three beams A7; straw filter material B1 and self-stirring device B...

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Abstract

The invention discloses a device for filtering livestock and poultry breeding wastewater and recovering filter materials. The device is sequentially provided with a water distributing feeding region, a self-stirring and filtering region and a water collecting and discharging region from top to bottom. A drainage groove, a U-shaped water distributing groove, a triangular rinsing weir, a feeding hole and a feeding pipe are arranged in the water distributing feeding region; a straw filter material and a self-stirring device are arranged in the self-stirring and filtering region; and an inclined screen, a horizontal screen, an inclined drainage plate, a horizontal drainage plate, a water collecting chamber and a drain pipe are arranged in the water collecting and discharging region. The device disclosed by the invention integrates wastewater filtration and resource recycling, and is simple in structure and small in occupied area; by adopting a weir-type water distributing system, the device can be prevented from being blocked by solid matters; by adopting the self-stirring system, the filter materials are uniformly distributed and; the filter materials in the device are recovered, so that a biomass resource is fully utilized.

Description

technical field [0001] The invention relates to a pretreatment device for livestock and poultry breeding wastewater, in particular to a device for filtering livestock and poultry breeding wastewater and recovering filter materials. Background technique [0002] According to my country's "Environmental Statistical Annual Report 2013", the chemical oxygen demand produced by agricultural sources reached 112.58 billion tons in 2013, accounting for 47.85% of the total emissions. Organic pollution from agricultural sources has become the most serious environmental problem in my country. Pig farm wastewater discharged from large-scale pig farms is the main source of pollution in the livestock and poultry industry. It contains high concentrations of organic matter, and its chemical oxygen demand can reach 5000-10000 mg / L. The direct discharge of wastewater from pig farms has caused serious environmental problems such as foul odor, water quality deterioration, and the growth of patho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D24/12B01D24/14B01D24/38
Inventor 郑平曾卓张萌张宗和邱琳丁阿强
Owner ZHEJIANG UNIV
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