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Treatment method of sweet potato alcohol wastewater

A technology of alcohol wastewater and treatment method, which is applied in multi-stage water treatment, water/sewage treatment, natural water treatment and other directions to achieve the effect of reducing treatment costs, reducing carbon emissions, obvious economic benefits and environmental benefits

Inactive Publication Date: 2017-05-31
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, manganese powder reduction (1h, 40℃, CO 2 Pressure 0.6MPa, adding 15g of manganese powder per liter of wastewater), anaerobic (pH8.5, 72h, 25℃~35℃), aerobic (4h) and biological filter tower (total thickness of porous ceramsite packing layer 1m, hydraulic load 50m 3 / m 2 .d) COD of effluent after treatment Cr It is 75mg / L, T-N8.1mg / L, T-P0.4mg / L, chromaticity 28.

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, manganese powder reduction (2.5h, 25℃, CO 2 Pressure 0.1MPa, adding 5g of manganese powder per liter of wastewater), anaerobic (pH7.0, 24h, 35℃~55℃), aerobic (6h) and biological filter tower (total thickness of activated carbon packing layer 2m, hydraulic load 150m 3 / m 2 .d) COD of effluent after treatment Cr It is 78mg / L, T-N8.7mg / L, T-P0.4mg / L, chroma 30.

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Abstract

The invention provides a treatment method of sweet potato alcohol wastewater. The method comprises the work procedures of liquid-solid separation, CO2 pressurization manganese powder reduction, anaerobic treatment, aerobic treatment, biological filtration tower treatment and the like; the treated wastewater can be stably discharged in a standard reaching manner.

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): C02F9/14C02F103/36C02F101/30
CPCC02F1/66C02F1/705C02F3/02C02F3/28C02F3/34C02F9/00C02F2001/007C02F2003/001C02F2003/003C02F2101/30C02F2103/36C02F2301/046C02F2301/08C02F2303/24Y02E50/30
Inventor 龙炳清龚婕王杰才
Owner SICHUAN NORMAL UNIVERSITY
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