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A kind of waste water treatment device and treatment method for livestock and poultry breeding based on forward osmosis membrane

A forward osmosis membrane, livestock and poultry breeding technology, applied in the fields of animal husbandry wastewater treatment, biological treatment devices, water/sewage treatment, etc. The effect of improving hydrophilicity

Active Publication Date: 2021-08-03
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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  • A kind of waste water treatment device and treatment method for livestock and poultry breeding based on forward osmosis membrane

Examples

Experimental program
Comparison scheme
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 wastewater treatment device for livestock and poultry breeding based on a forward osmosis membrane, comprising a biological reaction tank, a filter tank, a forward osmosis device, a draw liquid tank and a reverse osmosis device; the biological reaction tank is filled with activated sludge and volcanic stone powder and willow bark powder; the filter tank is provided with a micro-filter; the forward osmosis device is provided with a forward osmosis membrane, and the forward osmosis device is located at the bottom of the left side of the forward osmosis membrane to be provided with a third outlet pipe, and the third outlet pipe is connected to the The first liquid inlet pipe is connected; the forward osmosis device is located at the bottom of the right side of the forward osmosis membrane and is provided with a second liquid inlet pipe, and the second liquid inlet pipe is connected with a draw liquid tank; the reverse osmosis device is provided with a reverse osmosis membrane, and A fifth water outlet pipe is provided at the bottom end on the left side of the reverse osmosis membrane in the osmosis device, and the liquid outlet end of the fifth water outlet pipe is located in the draw liquid tank. The invention achieves a better treatment effect through the combination of various treatment equipment, and finally makes all the indicators in the treated livestock and poultry breeding wastewater meet the requirements of the comprehensive sewage 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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Patent Type & Authority Patents(China)
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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