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Livestock and poultry breeding wastewater treatment device based on forward osmosis membrane and treatment method

A forward osmosis membrane, livestock and poultry breeding technology, applied in the fields of animal husbandry wastewater treatment, biological treatment device, water/sewage treatment, etc., can solve the problem that the effluent is difficult to meet the standard discharge, achieve good treatment effect, improve retention rate, improve contact area effect

Active Publication Date: 2019-01-04
NANYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a forward osmosis membrane-based livestock and poultry breeding wastewater treatment device and treatment method, which solves the problem in the prior art that the final effluent is difficult to meet the discharge standard when using anaerobic technology to treat livestock and poultry breeding wastewater

Method used

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  • Livestock and poultry breeding wastewater treatment device based on forward osmosis membrane and treatment method

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Experimental program
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Effect test

Embodiment 1

[0039] A kind of wastewater treatment device for livestock and poultry breeding based on forward osmosis membrane, specifically as figure 1 As shown, it includes a biological reaction tank 1, a filter tank 2, a forward osmosis device 3, a draw liquid tank 4, and a reverse osmosis device 5; the lower end of one side of the biological reaction tank 1 is provided with a water inlet pipe 6, and the livestock and poultry breeding wastewater passes through the water inlet pipe 6 Enter the bioreactor 1 for processing;

[0040]The upper end of the opposite side is provided with a first outlet pipe 7, and the bottom end is provided with a first liquid inlet pipe 8; the biological reaction tank 1 is filled with activated sludge, particle diameter of volcanic stone powder and willow bark powder of 1-3mm mixture, and the mass ratio of volcanic stone powder, willow bark powder and aerobic activated sludge is 1:5:100. The large number of pores in volcanic stone powder can provide places for...

Embodiment 2

[0054] Utilize the method for processing the wastewater for livestock and poultry breeding based on the wastewater treatment device for livestock and poultry breeding of embodiment 1 based on forward osmosis membrane, comprising the following steps:

[0055] Step 1, COD concentration is 3568mg / L, and TN concentration is 543mg / L, and the livestock and poultry breeding waste water that TP concentration is 96mg / L is passed into bioreactor 1, and COD volumetric load is set to be 5.0kgCOD / ( in bioreactor 1 m 3 d), the DO concentration is 3mg / L, the HRT is 8h, and the effluent of the biological reaction tank 1 is obtained after the reaction is completed;

[0056] Step 2, passing the effluent of the biological reaction tank 1 into the filter tank 2, and after being filtered by the micro-filter 10 in the filter tank 2, the effluent of the filter tank 2 is obtained;

[0057] Step 3, pass the effluent from the filter tank 2 into the left side of the forward osmosis device 3, and simult...

Embodiment 3

[0061] Utilize the method for processing the wastewater for livestock and poultry breeding based on the wastewater treatment device for livestock and poultry breeding of embodiment 1 based on forward osmosis membrane, comprising the following steps:

[0062] Step 1, COD concentration is 1986mg / L, and TN concentration is 437mg / L, and the livestock and poultry waste water that TP concentration is 83mg / L is placed in bioreaction tank 1, and the COD volume load in setting bioreaction tank 1 is 6.0kgCOD / (m 3 d), the DO concentration is 4mg / L, the HRT is 9h, and the effluent of the biological reaction tank 1 is obtained after the reaction is completed;

[0063] Step 2, passing the effluent of the biological reaction tank 1 into the filter tank 2, and after being filtered by the micro-filter 10 in the filter tank 2, the effluent of the filter tank 2 is obtained;

[0064] Step 3, pass the effluent from the filter tank 2 into the left side of the forward osmosis device 3, and simultane...

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Abstract

The invention discloses a livestock and poultry breeding wastewater treatment device based on forward osmosis membrane. The device comprises a biological reaction tank, a filter tank, a forward osmosis device, an extract liquid box and a reverse osmosis device, wherein the biological reaction tank is filled with a mixture of a reactive sludge, volcano rock powder and willow bark powder; a micro filter net is arranged in the filter tank; a forward osmosis membrane is arranged in the forward osmosis device, a third water outlet pipe is arranged at the bottom end, located on the left side of theforward osmosis membrane, of the forward osmosis membrane device, and the third water outlet pipe is communicated with a first liquid inlet pipe; a second liquid inlet pipe is arranged at the bottom end, located on the right side of the forward osmosis membrane, of the forward osmosis membrane device and communicated with the extract liquid box; a reverse osmosis membrane is arranged in the reverse osmosis device, a fifth water outlet pipe is arranged at the bottom end, located on the left side of the reverse osmosis membrane, in the reverse osmosis device, and a liquid outlet end of the fifthwater outlet pipe is located in the extract liquid box. The better treatment effect can be realized through combination of multiple treatment devices, and finally, all indexes of treated livestock and poultry breeding wastewater can meet the requirement of integrated wastewater discharge standard.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a forward osmosis membrane-based wastewater treatment device for livestock and poultry breeding and a treatment method. Background technique [0002] Livestock and poultry breeding wastewater contains livestock and poultry feces and urine, which contain high concentrations of organic matter, nitrogen, phosphorus and other pollutants, and have good biochemical properties. At present, with the expansion of livestock and poultry farms, the amount of feces and urine pollutants produced will also increase. Untreated discharge of these high-concentration organic wastewater will cause eutrophication of the water body and consume a large amount of dissolved oxygen in the water. It makes the surrounding waters stink and turn black, which not only seriously harms the waters near the farms, but also hinders the sustainable development of the breeding industry itself. ...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F101/30C02F101/16C02F103/20
CPCC02F1/001C02F1/441C02F1/445C02F3/34C02F9/00C02F2101/105C02F2101/16C02F2101/30C02F2103/20C02F2203/006C02F2209/08C02F2209/16C02F2301/046
Inventor 徐俊梁怡晗裴云燕白云浩莫贞林彭君陶王冰贾虎蒋耿民马霄航
Owner NANYANG NORMAL UNIV
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