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Treatment method of acetone butanol and ethanol total solvent production wastewater

A total solvent and waste water technology, which is applied in the direction of processing waste water treatment, biological water/sewage treatment, water/sewage treatment, etc., can solve the problems of difficult discharge of waste water and high concentration, and achieve obvious economic and environmental benefits. Effects of avoiding pollution and reducing carbon emissions

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

Since the waste water contains persistent organic pollutants (including benzene ring and (or) heterocyclic organic matter), especially when fresh sweet potatoes are used as the main

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0007] Example 1: Treat 1m per day 3 Total Solvent Wastewater (Composition: COD Cr 39000 mg / L, T-N40.8 mg / L, SS29000mg / L T-P4.2mg / L, color 720), after liquid-solid separation, manganese powder reduction (10min, 40℃, CO 2 The pressure is 0.6MPa, 15g manganese powder is added per liter of wastewater, and the ultrasonic input power per cubic meter of wastewater is 4kW), anaerobic (pH8.5, 72h, 25℃~35℃), aerobic (4h) and biological filter tower ( The total thickness of the porous ceramsite filler layer is 1m, and the hydraulic load is 50m 3 / m 2 .d) COD of effluent after treatment Cr It is 86mg / L, T-N7.8mg / L, T-P0.4mg / L, chroma 30.

Example Embodiment

[0008] Example 2: Treating 5m per day 3 Total Solvent Wastewater (Composition: COD Cr 41000 mg / L, T-N38.5mg / L, SS31500mg / L, T-P4.7mg / L, chromaticity 760), after liquid-solid separation, manganese powder reduction (20min, 25℃, CO 2 Pressure of 0.1MPa, 5g of manganese powder per liter of wastewater, 2kW of ultrasonic input power per cubic meter of wastewater), anaerobic (pH7.0, 24h, 35℃~55℃), aerobic (6h) and biological filter tower ( The total thickness of the activated carbon filler layer is 2m, and the hydraulic load is 150m 3 / m 2 .d) COD of effluent after treatment Cr It is 88mg / L, T-N7.4mg / L, T-P0.4mg / L, chromaticity 33.

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Abstract

The invention provides a treatment method of acetone butanol and ethanol total solvent production wastewater. The method comprises work procedures of liquid-solid separation, CO2 pressurization manganese powder reduction under the ultrasonic wave effect, 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 method for treating waste water produced by using sweet potato as the main raw material to produce the total solvent of acetin. Background technique [0002] Acetone, butanol, and ethanol are collectively referred to as the total solvent of acetone, which is an important raw material for medicine, pesticide, plastic, paint, national defense and light industry. In the early days, the total solvent of acetone was mainly produced from petroleum. In recent years, the use of biomass fermentation to produce acetin total solvent has become a development trend. Sweet potato is one of the main raw materials for the production of Bingding total solvent, and 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 environmen...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F101/30C02F103/26C02F101/10C02F101/16
CPCC02F1/36C02F1/66C02F1/705C02F3/30C02F3/34C02F9/00C02F2101/105C02F2101/16C02F2101/30C02F2103/26C02F2209/06
Inventor 龙炳清匡茜熹陈亚平
Owner SICHUAN NORMAL UNIVERSITY
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