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Intelligent application program and optimization method for Fenton oxidation technology

An optimization method and application program technology, applied in chemical instruments and methods, design optimization/simulation, oxidized water/sewage treatment, etc., can solve the problems of heavy screening workload and low efficiency, achieve low cost of chemicals, improve treatment Efficiency and the effect of saving test time

Active Publication Date: 2019-04-12
GO HIGHER ENVIRONMENT GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides an intelligent application program and optimization method of Fenton oxidation technology to solve the problem of large workload and low efficiency of traditional Chinese medicine dosage screening in existing Fenton technology

Method used

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  • Intelligent application program and optimization method for Fenton oxidation technology
  • Intelligent application program and optimization method for Fenton oxidation technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] In a chemical wastewater treatment project, the initial COD content is 2000-3000mg / L, and the expected removal rate of COD is 80-85%, so the optimal dosing amount obtained through the intelligent application of Fenton oxidation technology is FeSO 4 .7H 2 O 10-12g / L, in actual engineering application, the COD of Fenton effluent is 400-600 mg / L, and the wastewater treatment cost is 9-11 yuan / t wastewater. The project can quickly estimate the treatment effect and cost through the Fenton dosing calculation program, and respond quickly to market demand within one day, greatly saving test time and unnecessary repetitive work, and improving customer satisfaction.

Embodiment 2

[0045] In a concentrated brine pretreatment project, the initial COD content is 500-600mg / L, and the expected removal rate of COD is 85-90%, so the optimal dosing amount of FeSO can be obtained through the intelligent application of Fenton oxidation technology 4 .7H 2 O is 2.0-2.6g / L. In practical engineering applications, the COD of Fenton effluent is lower than 50mg / L, and the cost of wastewater treatment is 10-11 yuan / t of wastewater. In this project, based on the proficient use of Fenton technology, within two weeks after the start of the experiment, the COD of the concentrated brine was reduced to below 50mg / L, the mud content in the effluent was very small, and the cost of the agent was only 7-9 yuan / t waste water, the color of the effluent is very low, which quickly and effectively solves the problem that organic matter in concentrated brine is difficult to degrade. Therefore, the Fenton rapid sedimentation technology shortens the Fenton reaction time in the laborator...

Embodiment 3

[0047] This method is used to screen and optimize the dosage of electricity-Fenton in the treatment of caprolactam production wastewater. The water quality of known caprolactam production wastewater is shown in Table 1, and the BOD of wastewater 5 / COD cr The ratio is 0.07, and the biodegradability is very poor. Adopt the present invention according to waste water COD cr content, deduced H 2 o 2 The best dosage is 1500-2000mg / L, H 2 o 2 :Fe 2+ The molar ratio is 10, 28%H 2 o 2 The dilution factor is 1, pure H 2 o 2 The ratio (K1) of COD / COD concentration is 0.5. Suitable for single-stage processing methods.

[0048] Table 1. Wastewater and product water quality of oximation unit

[0049]

[0050] It can be seen from Table 2 that after electro-Fenton treatment, the BOD of caprolactam wastewater 5 / COD cr From 0.07 to 0.49, the biodegradability of wastewater was significantly improved, COD cr The removal rate was 34%. Electro-Fenton effluent is suitable for b...

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Abstract

The invention provides an intelligent application program and an optimization method for a Fenton oxidation technology. The intelligent application program comprises: a data input unit, which comprises the following main parameters: the COD concentration of raw water, an expected removal rate of COD, the molar ratio of H2O2 to Fe2+, etc.; a data analysis unit, which comprises the following main parameters: a pure H2O2 amount / COD concentration ratio (K1), the molar number of pure H2O2, the molecular weight of FeSO4.7H2O, the addition amount of Fe2+, etc.; and a data output unit, which comprisesthe following main parameters: the addition amount of the FeSO4.7H2O, the addition volume of H2O2 with a concentration of 28%, the addition amount of the pure H2O2, etc. The intelligent application program provided by the invention can quickly predict the effect of treatment and the cost of chemical addition, obtains an optimal chemical addition amount and a treatment scheme in the shortest time,and makes rapid response to market demands; meanwhile, through addition of a proper amount of a flocculant, rapid settling of sludge is realized, and deviation caused by difficult settling of redundant and excessively-fine floc is easily avoided.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to an intelligent application program and optimization method of Fenton oxidation technology. Background technique [0002] Fenton oxidation technology is one of the most common advanced oxidation technologies, which catalyzes H through ferrous 2 o 2 HO is generated to achieve the degradation or direct mineralization of organic matter. While efficiently removing organic matter, maximizing the utilization efficiency of chemicals is of great significance for saving process operating costs. The ferric system reaction is the rate-limiting step of the entire oxidation reaction, so the oxidation efficiency depends largely on the ferric system reaction. It can be seen that H 2 o 2 and Fe 2+ It can react to generate free radicals, and on the other hand, it will react with free radicals to reduce the removal efficiency of organic matter, especially when the concentration of org...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/72C02F9/04G06F17/50C02F101/34
CPCC02F1/5236C02F1/5263C02F1/56C02F1/72C02F1/722C02F2101/34G06F30/20
Inventor 陈福泰张桂英
Owner GO HIGHER ENVIRONMENT GRP CO LTD
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