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Treatment method of sweet potato alcohol wastewater

A technology of alcohol wastewater and treatment methods, which is applied in water/sewage treatment, natural water treatment, water treatment parameter control, etc., to achieve the effect of reducing treatment costs, obvious economic and environmental benefits, and reducing carbon emissions

Inactive Publication Date: 2017-05-17
SICHUAN NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For the problem of current sweet potato alcohol wastewater treatment method, the purpose of this invention is to seek the treatment method of the sweet potato alcohol wastewater that can be discharged up to the standard stably, it is characterized in that sweet potato alcohol wastewater is carried out liquid-solid separation, and the separated wastewater enters the adjustment tank, separates solid feed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0007] Embodiment 1: Treat 1m every day 3 Sweet potato alcohol wastewater (component: COD Cr 38500 mg / L, T-N42.2m / L, SS28000mg / L, T-P4.5mg / L, chroma 750), after liquid-solid separation, aluminum powder reduction (10min, 40℃, CO 2 Pressure 0.6MPa, adding 15g of aluminum powder per liter of wastewater, input ultrasonic power of 4kW per cubic meter of wastewater), anaerobic (pH8.5, 72h, 25℃~35℃), aerobic (4h) and biological filter tower (porous The total thickness of the ceramsite filler layer is 1m, and the hydraulic load is 50m 3 / m 2 .d) COD of effluent after treatment Cr It is 58mg / L, T-N7.7mg / L, T-P0.3mg / L, chromaticity 26.

Embodiment 2

[0008] Embodiment 2: Treat 5m every day 3 Sweet potato alcohol wastewater (component: COD Cr 40500 mg / L, T-N45.1m / L, SS31500mg / L, T-P4.2mg / L, chroma 780), after liquid-solid separation, aluminum powder reduction (25min, 25℃, CO 2 Pressure 0.1MPa, adding 5g of aluminum powder per liter of wastewater, input ultrasonic power of 2kW per cubic meter of wastewater), anaerobic (pH7.0, 24h, 35℃~55℃), aerobic (6h) and biological filter tower (activated carbon The total thickness of the packing layer is 2m, and the hydraulic load is 150m 3 / m 2 .d) COD of effluent after treatment Cr It is 63mg / L, T-N8.3mg / L, T-P0.3mg / L, chromaticity 28.

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Abstract

The invention provides a treatment method of sweet potato alcohol wastewater. The treatment method comprises the following procedures of carrying out solid-liquid separation, reducing by CO2 pressurized aluminum powder under the action of ultrasonic waves, carrying out anaerobic treatment, carrying out aerobic treatment, treating by a biological filter tower and the like; treated wastewater can stably reach emission standards and then is discharged.

Description

technical field [0001] The invention relates to a treatment method of sweet potato alcohol wastewater. Background technique [0002] Sweet potato is one of the main raw materials for the production of alcohol. The pollutant COD concentration in the organic wastewater produced by its production is high, the composition is complex, and the treatment is difficult. If the wastewater is not treated and directly discharged into the environment, it will cause serious pollution to the environment. At present, the treatment method of sweet potato alcohol wastewater is mainly biological treatment. Since sweet potato alcohol wastewater contains persistent organic pollutants (including benzene rings and (or) heterocyclic organic compounds), especially when fresh sweet potatoes are used as the main raw material, the concentration of persistent organic pollutants is high, resulting in biological treatment. It is difficult for sweet potato alcohol wastewater to be discharged stably. It ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14B01D53/78B01D53/62C02F103/36C02F101/30
CPCB01D53/62B01D53/78C02F1/36C02F1/66C02F1/705C02F3/02C02F3/10C02F3/28C02F3/34C02F9/00C02F2001/007C02F2101/30C02F2103/325C02F2103/36C02F2209/08C02F2209/16C02F2209/18Y02E50/30
Inventor 龙炳清邓其娟聂付江
Owner SICHUAN NORMAL UNIVERSITY
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