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Hydrogen peroxide production wastewater treatment system and process

A technology for the production of wastewater and hydrogen peroxide, which is applied in the direction of oxidized water/sewage treatment, special compound water treatment, biological water/sewage treatment, etc. It can solve the problems of large impact on the treatment process, large fluctuations in wastewater indicators, and difficulty in achieving standard discharge, etc. problems, achieve the effect of achieving discharge standards and reducing the COD content of effluent

Inactive Publication Date: 2017-03-15
SHANDONG MINGHUA NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process uses hydrogen peroxide catalytic oxidation-flocculation method (Fenton method) to treat wastewater. The mass concentration of COD in the effluent generally exceeds 300mg / L in intermittent operation. The impact of the process is relatively large, and the wastewater index after treatment fluctuates greatly, making it difficult to achieve discharge standards

Method used

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  • Hydrogen peroxide production wastewater treatment system and process
  • Hydrogen peroxide production wastewater treatment system and process

Examples

Experimental program
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Effect test

Embodiment 1

[0036] System Assembly:

[0037] The hydrogen peroxide production wastewater treatment system comprises an alkaline sewage tank 1, an alkaline grease trap 4, an iron filings reaction tank 7, a hydrolytic acidification tank 8, an aerobic tank 9 and a sedimentation tank 11. The alkaline sewage tank 1 The inner bottom is communicated with the alkaline grease trap 4 through a pipeline, and a sewage pool sewage lifting pump 2 is installed on the pipeline connected between the alkaline sewage pool 1 and the alkaline grease trap 4; An alkaline sewage oil self-priming pump 3 is installed; the inner bottom of the alkaline grease trap 4 communicates with the air flotation oil separator 6 through a pipeline, and the pipeline connected between the alkaline grease trap 4 and the air flotation oil separator 6 is installed There is an alkaline sewage lifting pump 5; the liquid outlet of the air flotation oil separation device 6 communicates with the iron filings reaction pool 7 through a pip...

Embodiment 2

[0051] System Assembly:

[0052] The hydrogen peroxide production wastewater treatment system comprises an alkaline sewage tank 1, an alkaline grease trap 4, an iron filings reaction tank 7, a hydrolytic acidification tank 8, an aerobic tank 9 and a sedimentation tank 11. The alkaline sewage tank 1 The inner bottom is communicated with the alkaline grease trap 4 through a pipeline, and a sewage pool sewage lifting pump 2 is installed on the pipeline connected between the alkaline sewage pool 1 and the alkaline grease trap 4; An alkaline sewage oil self-priming pump 3 is installed; the inner bottom of the alkaline grease trap 4 communicates with the air flotation oil separator 6 through a pipeline, and the pipeline connected between the alkaline grease trap 4 and the air flotation oil separator 6 is installed There is an alkaline sewage lifting pump 5; the liquid outlet of the air flotation oil separation device 6 communicates with the iron filings reaction pool 7 through a pip...

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Abstract

The invention discloses a hydrogen peroxide production wastewater treatment system and process. In the system, the bottom in an alkaline sewage tank communicates with an alkaline oil separation tank through a pipeline; the bottom in the alkaline oil separation tank communicates with a flotation oil separation device through a pipeline; a liquid outlet of the flotation oil separation device communicates with a scrap iron reaction tank through a pipeline; the bottom in the scrap iron reaction tank communicates with a hydrolysis and acidification tank through a pipeline; a liquid outlet of the hydrolysis and acidification tank communicates with an aerobic tank internally provided with an aeration pipe through a pipeline; a liquid outlet of the aerobic tank communicates with a sedimentation tank through a pipeline; and a liquid outlet of the sedimentation tank communicates with a monitoring tank through a pipeline. According to the invention, nondegradable organic pollutants can be converted into degradable pollutants, thereby improving the biochemical degradability; the COD (chemical oxygen demand) removal rate of the wastewater in the whole process is up to 98.5% or above; sludge is treated while the sewage is treated, thereby realizing centralized sewage and sludge treatment; intermittent operation of single flows is realized under the condition of continuous operation of the total flow; and the COD content of the effluent water is effectively reduced, thereby realizing up-to-standard discharge.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a hydrogen peroxide production wastewater treatment system and process. Background technique [0002] The production of hydrogen peroxide by anthraquinone method mainly includes four processes of hydrogenation, oxidation, extraction and purification. Alkylhydroanthraquinone, the latter is then oxidized to generate H 2 o 2 , the other part is changed back to alkyl anthraquinone, and the generated H 2 o 2 Extract with pure water to get H 2 o 2 After the product, the raffinate alkylanthraquinone solution is treated, hydrogenation is carried out again. The preparation of working fluid mainly uses heavy aromatics, alkyl anthraquinone and trioctyl phosphate as raw and auxiliary materials, so the production wastewater contains a certain amount of refractory organic substances such as the above-mentioned aromatic compounds and their derivatives, and the COD content is ...

Claims

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Application Information

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IPC IPC(8): C02F9/14
CPCC02F9/00C02F1/40C02F1/5245C02F1/56C02F1/66C02F1/72C02F3/00C02F3/02C02F11/12C02F11/125C02F2001/007C02F2305/023
Inventor 郭彦超秦涛苗成祥宋子兴延增银
Owner SHANDONG MINGHUA NEW MATERIAL CO LTD