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Enhanced advanced oxidation procedure

An advanced oxidation and high-energy technology, applied in the field of purification, can solve unfriendly problems and achieve excellent results

Inactive Publication Date: 2012-03-14
A SHITZER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Obviously, the pH level of the treatment solution has to be adjusted by pre-treatment, which results in additional cost of purchasing additives and further labor costs
Additionally, low pH levels require confronting unfriendly acids

Method used

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Examples

Experimental program
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Embodiment Construction

[0024] Enhanced Advanced Oxidation Method AOP

[0025] figure 1 is a simplified block diagram showing a system based on the ultrasonic / Fenton reaction for purification of industrial wastewater for operating enhanced AOP. The enhanced AOP operates a special ultrasonic apparatus and method on a volume of Vo of a treatment solution 10 containing toxic organic substances to degrade organic substances that cannot be treated by ordinary biodegradation methods in the presence of oxidative chemicals and catalysts.

[0026] Enhanced AOP may be part of a multi-stage approach that includes one or more different preprocessing, intermediate, and postprocessing processes. For example, the pretreatment process may include removal of oily materials, solids suspended in the wastewater treatment solution, and suspended solids sediments derived from dissolved solids treated by chemical reactions as well known to those skilled in the art.

[0027] As another example of a preliminary treatment s...

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Abstract

An enhanced advanced oxidation procedure comprises the steps of: forcing treated solution to pass through at least one flow-through tubular reactor chamber (24) of a ultrasound device (20); operating ultrasound transducers (26) which are longitudinally linear distributed in string and fixedly disposed along a length L of the at least one tubular reactor chamber (24), in order to cause cavitation along a width dimension WD; and operating the ultrasound transducers (26) and a circulating pump (3) to force the treated solution (10) to flow through the at least one flow-through tubular reactor chamber (24) for a number of cycles selected from a group consisting of 1 to 10 cycles per hour by using a frequency in a range of 15 kHz to 50 kHz and an an energetic load of 0.1 to 1.5 kW h / m, wherein the at least one flow-through tubular reactor chamber is adapted for achieving an ultrasound cavitation exposure time of the treated solution for a period of time of 1 to 60 seconds.

Description

technical field [0001] The present invention relates to a purification method (decontamination method), in particular to the purification of industrial wastewater containing organic substances that cannot be treated by ordinary biodegradation methods. Background technique [0002] Most pollutants in industrial wastewater can be treated by bacterial (bio)degradation, but a large number of polluting chemicals that are toxic to humans and the environment still contaminate water, air and soil. These chemicals are called non-degradable because they are not broken down by any bacterial culture, but must be disposed of by some other decomposition method. [0003] It is recognized in the professional literature that, by the US / Fenton (Ultrasonic / Fenton) method, the purification and degradation of chemicals that are aerobic and considered water contaminants can be treated and oxidized. US is an abbreviation for "ultrasound". The reaction of the US / Fenton process is catalyzed by the...

Claims

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Application Information

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IPC IPC(8): C02F9/08C02F1/72C02F1/36
CPCC02F1/24C02F1/36C02F1/52C02F1/683C02F1/722C02F1/725C02F2101/30C02F2101/32C02F2201/002C02F2209/06C02F2209/08C02F2209/20C02F2209/40C02F2209/44C02F2305/026C02F2305/08
Inventor 乔舒亚·加德-埃尔本杰明·莫森松博亚兹·什特泽尔
Owner A SHITZER
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