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Treatment method of beer brewing wastewater

A technology for producing wastewater and treatment methods, which is applied in the fields of food industry wastewater treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc. The effect of reducing chemical oxygen consumption and biological oxygen consumption

Inactive Publication Date: 2014-08-13
WUJIANG YINGLIDA PLASTIC PACKAGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biological method has a long cycle and the effect is not obvious

Method used

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  • Treatment method of beer brewing wastewater

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Effect test

Embodiment 1

[0011] A method for treating beer production wastewater, the treatment method comprising the following steps: (1) adjusting the pH of the beer production wastewater to neutrality; (2) adding silica gel to the beer production wastewater, and the weight of silica gel added is 4.5wt of the weight of the beer production wastewater %, after adding, stir slightly for 2 hours; (3) After the stirring is completed, filter the beer production wastewater to obtain the beer wastewater filtrate; (4) After filtering, pass the beer wastewater filtrate through the ceramic membrane, the molecular weight of the ceramic membrane is 3000, and collect the permeate (5) Pass the permeate through a ceramic membrane with a molecular weight of 300, and collect the permeate, which is the treated beer production wastewater.

Embodiment 2

[0013] A method for treating beer production wastewater, the treatment method comprising the following steps: (1) adjusting the pH of the beer production wastewater to neutrality; (2) adding silica gel to the beer production wastewater, and the weight of silica gel added is 4wt% of the weight of the beer production wastewater , stirred slightly for 1 hour after adding; (3) After the stirring, the beer production wastewater was filtered to obtain the beer wastewater filtrate; (4) After filtration, the beer wastewater filtrate was passed through a ceramic membrane with a molecular weight of 3000, and the permeate was collected; (5) Pass the permeate through a ceramic membrane with a molecular weight of 400, and collect the permeate, which is the treated wastewater from beer production.

Embodiment 3

[0015] A method for treating beer production wastewater, the treatment method comprising the following steps: (1) adjusting the pH of the beer production wastewater to neutrality; (2) adding silica gel to the beer production wastewater, and the weight of silica gel added is 4.5wt of the weight of the beer production wastewater %, stir gently for 1 hour after adding; (3) After the stirring is completed, filter the beer production wastewater to obtain the beer wastewater filtrate; (4) After filtering, pass the beer wastewater filtrate through the ceramic membrane, the molecular weight of the ceramic membrane is 3000, and collect the permeate (5) Pass the permeate through a ceramic membrane with a molecular weight of 500, and collect the permeate, which is the treated beer production wastewater.

[0016] The BOD value and CODcr value in beer production wastewater before and after treatment are as follows.

[0017]

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Abstract

The invention relates to a treatment method of beer brewing wastewater. The treatment method comprises the following steps: (1) adjusting the pH of the beer brewing wastewater to be neutral; (2) adding silica gel into the beer brewing wastewater, wherein the weight of silica gel is 4.0-4.5wt% of the beer brewing wastewater, and slightly stirring for 1-2 hours after addition; (3) after stirring, filtering the beer brewing wastewater and filtering to obtain a beer brewing wastewater filtrate; (4) after filtering, enabling the beer brewing wastewater filtrate to pass through a ceramic membrane, wherein the molecular weight of the ceramic membrane is 3000, collecting permeate; and (5) enabling the permeate to pass through the ceramic membrane with the molecular weight of 300, and collecting the permeate to obtain the treated beer brewing wastewater. The BOD (Biochemical Oxygen Demand) value of the treated beer brewing wastewater is reduced from 523mg / L to 22mg / L-27mg / L and the CODcr (Chemical Oxygen Demand) value is reduced from 498mg / L to 17mg / L-20mg / L.

Description

technical field [0001] The invention relates to a treatment method for wastewater, in particular to a treatment method for beer production wastewater. Background technique [0002] Malt fermentation is involved in the beer production process, which produces a large amount of waste water. The sugar content in these wastewaters is relatively high, and the wastewater also contains certain microorganisms. The existence of these microorganisms and sugars constitutes the main pollutants of beer production wastewater. At present, most of the conventional methods for treating beer production wastewater are biological methods. The total amount of pollutants in beer production wastewater can be reduced through biological methods. Two parameters need to be effectively reduced, namely, biological oxygen consumption and chemical oxygen consumption. . The cycle of biological method is longer, and the effect is not obvious. Therefore, we can consider reducing the total amount of polluta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F1/44C02F103/32
Inventor 倪迪
Owner WUJIANG YINGLIDA PLASTIC PACKAGING
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