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High-protein wastewater treatment process

A wastewater treatment and high-protein technology, applied in the field of high-protein wastewater treatment process, can solve the problems of high operating cost and poor treatment effect of high-protein wastewater, and achieve the effects of low operating cost, prominent substantive features, and convenient management

Inactive Publication Date: 2017-12-22
河北德龙环境工程股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention proposes a high-protein wastewater treatment process, which solves the problems of poor treatment effect and high operating cost of the wastewater treatment process in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A high-protein wastewater treatment process includes the following steps:

[0043] Step (1) Waste water passes through a mechanical grid to remove floating objects with a diameter of more than 3mm, and then enter the next process;

[0044] Step (2) The wastewater enters the regulating tank, add lye to the regulating tank, and stir with a submersible mixer, and stop adding lye when the PH value in the regulating tank is 7 measured by the PH controller, and the wastewater stays in the regulating tank for 12 hours. Adjust the water quality and quantity, and then enter the next process;

[0045] Step (3) Add biological flocculant and common flocculant in the reaction tank at a ratio of 20:1, and the total amount of biological flocculant and common flocculant added is 1 / 20 of the water volume of the regulating pool, and the wastewater from the regulating pool is raised to The reaction tank, staying in the reaction tank for 0.5h, after being fully mixed with the flocculant, flows i...

Embodiment 2

[0060] A high-protein wastewater treatment process includes the following steps:

[0061] Step (1) Waste water passes through a mechanical grid to remove floating objects with a diameter of more than 3mm, and then enter the next process;

[0062] Step (2) The wastewater enters the regulating tank, add lye to the regulating tank, and stir with a submersible mixer. When the PH value in the regulating tank is measured by the PH controller, stop adding lye, and the wastewater stays in the regulating tank for 12 hours. Adjust the water quality and quantity, and then enter the next process;

[0063] Step (3) Add biological flocculant and common flocculant in the reaction tank at a ratio of 20:1, and the total amount of biological flocculant and common flocculant added is 1 / 20 of the water volume of the regulating pool, and the wastewater from the regulating pool is raised to The reaction tank, stay in the reaction tank for 0.5h, after fully mixing with the flocculant, flow into the floccu...

Embodiment 3

[0078] A high-protein wastewater treatment process includes the following steps:

[0079] Step (1) Waste water passes through a mechanical grid to remove floating objects with a diameter of more than 3mm, and then enter the next process;

[0080] Step (2) The wastewater enters the regulating tank, add lye to the regulating tank, and stir with a submersible mixer, and stop adding lye when the PH value in the regulating tank is 9 measured by the PH controller, and the wastewater stays in the regulating tank for 12 hours. Adjust the water quality and quantity, and then enter the next process;

[0081] Step (3) Add biological flocculant and common flocculant in the reaction tank at a ratio of 20:1, and the total amount of biological flocculant and common flocculant added is 1 / 20 of the water volume of the regulating pool, and the wastewater from the regulating pool is raised to The reaction tank stays in the reaction tank for 0.5h, after being fully mixed with the flocculant, enters the...

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Abstract

The invention belongs to the technical field of wastewater treatment and provides a high-protein wastewater treatment process. The high-protein wastewater treatment process adopts a mechanical grid, a regulating pond, a reaction pond, a flocculation settling pond, a hydrolysis acidification pond, a mixing pond, an EGSB reactor, an air-floated machine, a contact oxidation pond, a first settling pond, an active silt pond and a second settling pond. By means of the technical solution, the problems of poor high-protein wastewater treatment effect and high operation cost of a wastewater treatment process in the prior art are solved.

Description

Technical field [0001] The invention belongs to the technical field of wastewater treatment, and relates to a high-protein wastewater treatment process. Background technique [0002] At present, soy products have entered thousands of households and become indispensable nutrients for many people. However, there will be a certain amount of waste water discharged during the processing of soy products, mainly from bean washing wastewater, bean soaking wastewater, yellow swill water and pipeline flushing water. Among them, SS, CODcr and NH3-N index are high. [0003] To remove SS in wastewater, the usual methods used are filtration, air flotation and coagulation sedimentation. The use of ordinary filtration and air flotation processes to remove SS is very poor, and the effect of coagulation and sedimentation with conventional chemicals is OK, but the cost of chemicals is too high. [0004] Because of the good biodegradability and high CODcr of soybean production wastewater, a combined a...

Claims

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Application Information

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IPC IPC(8): C02F9/14
CPCC02F1/001C02F1/24C02F1/28C02F1/52C02F1/66C02F3/12C02F3/28C02F9/00C02F2001/007
Inventor 黄德喜柳玉肖张会民贾振田赵彬王娜黎翠
Owner 河北德龙环境工程股份有限公司
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