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Energy-saving processing method for wastewater generated during liquor brewing process

A technology of brewing wastewater and treatment methods, which is applied in the fields of wastewater treatment and food wastewater treatment, can solve problems such as uneven aeration, high power, and insufficient aeration volume, and achieve low-consumption and high-efficiency removal, saving input and operating costs.

Inactive Publication Date: 2014-05-28
XINXIANG UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

These processes have a common feature, which is the need for aeration equipment, and the price of the aeration fan is relatively high, and the power is relatively large, and its energy consumption accounts for a considerable part of the wastewater treatment cost.
At the same time, the aeration equipment and pipelines need to be maintained frequently, otherwise the wastewater treatment effect may be affected due to insufficient aeration or uneven aeration

Method used

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  • Energy-saving processing method for wastewater generated during liquor brewing process

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Embodiment

[0014] In a liquor production enterprise, in addition to production wastewater, the wastewater produced also includes some domestic wastewater in the factory area, with a volume of wastewater of 350 m 3 / d, raw water quality indicators are shown in Table 1.

[0015] Table 1 Wastewater quality indicators (average value) of a liquor production enterprise

[0016]

[0017] An energy-saving treatment method for liquor brewing wastewater, the specific steps are as follows:

[0018] (1) The waste water first flows through the mechanical grille, removes coarse particles and floating objects, and then flows into the sump, and then lifts it to the comprehensive pool by the first-stage lift pump;

[0019] (2) The waste water enters the comprehensive tank. In the sedimentation adjustment area, the scum in the water is scraped by the scraper to the sand filter tank. The sand filter tank is equipped with filter sand. After sand filtration, the filtrate is returned to the adjustment tan...

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Abstract

The invention discloses an energy-saving processing method for wastewater generated during the liquor brewing process. The processing method comprises the following steps: (1) filtering the big floating dregs in liquor brewing wastewater with mechanical gratings; (2) then introducing the wastewater filtered by mechanical gratings into a comprehensive tank; (3) introducing the water discharged from the comprehensive tank into an anaerobic baffle-plate reactor; (4) introducing the water discharged from the anaerobic baffle-plate reactor into a medium precipitation tank; (5) introducing the water discharged from the medium precipitation tank into a composite vertical flow artificial wetland system, wherein in the artificial wetland system, pollutants such as organisms, SS, ammonia nitrogen, and the like in the wastewater are further degraded by the combined action of wetland substrate, microorganisms, and plants, and finally discharging the processed wastewater. The processing method can effectively remove the pollutants such as organisms, ammonia nitrogen, SS, and the like, in the liquor brewing wastewater on the basis of low equipment investment and operation management fee, moreover the water quality of the processed wastewater meets the I-grade discharge standard of the industry, and a novel method is provided for energy-saving treatment of liquor brewing wastewater.

Description

technical field [0001] The invention relates to a wastewater treatment method, in particular to an energy-saving treatment method for liquor brewing wastewater, and belongs to the technical field of food wastewater treatment. Background technique [0002] Liquor brewing wastewater mainly includes distillation bottom pot water, koji box cleaning water, printing koji wastewater, distiller's grain waste liquid, fermentation tank seepage water, grain soaking water, distillation cooling water, bottle washing water and equipment cleaning wastewater generated during the production process. . Wastewater generally does not contain heavy metals, has a high BOD / COD ratio and good biochemical properties, but the water quality and quantity fluctuate greatly in different periods, and SS and COD in wastewater Cr 、BOD 5 It is a typical high-concentration organic wastewater with a high concentration and a certain color. If it is discharged directly without treatment, it will have a negativ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F103/32
Inventor 于涛胡利强余冬李琼赵凤梅徐绍红
Owner XINXIANG UNIV
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