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Novel wastewater treatment process for bisphenol-A production

A production process and wastewater treatment technology, applied in biological water/sewage treatment, filtration treatment, water/sewage treatment, etc., can solve the problems of containment, cumbersome process, complicated operation, etc., achieve simple process flow, high treatment efficiency, degradation good effect

Inactive Publication Date: 2018-10-30
PEKING PUYUAN INST FOR ADVANCED MATERIALS & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the overall process of producing bisphenol A in this process is similar to the hydrochloric acid process, and the multi-step process will also lead to trace amounts of phenol and acetone in the wastewater
At present, for the wastewater treatment method in the production process of bisphenol A, the previous process is basically continued, and the process is cumbersome and the operation is complicated.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1 proposes a new process for wastewater treatment in a bisphenol A production process, comprising the steps:

[0016] (1) Firstly, the waste water produced in the bisphenol A production process is filtered through the grid to filter out the small particles or suspended matter that may be taken out of the pipeline, and then input into the waste water collection system, and then pumped into the waste water containing 0.8% by the motor. Nano-TiO 2 In the photocatalytic degradation treatment pool of the porous carbon film grating, UV treatment is carried out. First, nano-TiO 2 After absorbing the energy of the ultraviolet rays emitted by the ultraviolet lamp, it will excite its own electrons and make a transition. The thrown electrons and the "potential" vacated by itself become a "knife" that tears organic molecules. Titanium dioxide particles are not consumed. In my own case, the organic matter is degraded, and the final products are basically carbon dioxide ...

Embodiment 2

[0019] Embodiment 2 proposes a new technology for wastewater treatment in the bisphenol A production process, comprising the steps:

[0020] (1) Firstly, the waste water produced in the bisphenol A production process is filtered through the grid to filter out the small particles or suspended matter that may be taken out of the pipeline, and then input into the waste water collection system, and then pumped into the waste water containing 2.5% by the motor. Nano-TiO 2 In the photocatalytic degradation treatment pool of the porous carbon film grating, UV treatment is carried out. First, nano-TiO 2 After absorbing the energy of the ultraviolet rays emitted by the ultraviolet lamp, it will excite its own electrons and make a transition. The thrown electrons and the "potential" vacated by itself become a "knife" that tears organic molecules. Titanium dioxide particles are not consumed. In my own case, the organic matter is degraded, and the final products are basically carbon dio...

Embodiment 3

[0023] Embodiment 3 proposes a new technology for wastewater treatment in the bisphenol A production process, comprising the steps:

[0024] (1) Firstly, the waste water produced in the production process of bisphenol A is filtered through the grid to filter out the small particles or suspended matter that may be taken out of the pipeline, and then input into the waste water collection system, and then pumped into the waste water containing 1.6% by the motor. Nano-TiO 2 In the photocatalytic degradation treatment pool of the porous carbon film grating, UV treatment is carried out. First, nano-TiO 2 After absorbing the energy of the ultraviolet rays emitted by the ultraviolet lamp, it will excite its own electrons and make a transition. The thrown electrons and the "potential" vacated by itself become a "knife" that tears organic molecules. Titanium dioxide particles are not consumed. In my own case, the organic matter is degraded, and the final products are basically carbon ...

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PUM

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Abstract

The invention relates to a novel wastewater treatment process for bisphenol-A production. The novel wastewater treatment process includes S101, filtering wastewater produced from bisphenol-A production by a grating, inputting the wastewater into a wastewater collection system, pumping the wastewater into a photocatalytic degradation tank with a nano-TiO2 carbon film raster by an electric motor, and performing ultraviolet treatment, wherein the mass content of phenol in the wastewater produced from bisphenol-A production is not higher than 0.08%, and the mass content of acetone is not higher than 0.06%; S102, guiding the wastewater treated in the step S101 into an active sludge and wastewater treatment tank, performing microbial decomposition under aerobic conditions, performing precipitation in a precipitation tank, pouring obtained supernatant into a sterilization tank, and discharging the supernatant after sterilization. The novel wastewater treatment process has the advantages of simple technological procedure, good degradation effect, high treatment quantity, avoidance of secondary pollution, high treatment efficiency and deep significance in wastewater treatment.

Description

technical field [0001] The invention belongs to the field of waste water treatment, and in particular relates to a new process for treating waste water in the production process of bisphenol A. Background technique [0002] Bisphenol A is an important derivative of phenol and acetone. The catalyst for this reaction is an acid catalyst. According to different production processes, the catalysts used in industry include sulfuric acid, hydrogen chloride and ion exchange resins. At present, the ion exchange resin process technology is widely used at home and abroad. The outstanding advantage of this technology is that it does not corrode equipment, and the content of acetone and phenol in the generated wastewater is extremely low, which effectively improves the pollution of "three wastes". However, the overall process of producing bisphenol A by this process is similar to the hydrochloric acid method, and the multi-step process will also cause trace amounts of phenol and aceton...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F101/34C02F103/36
CPCC02F1/001C02F1/32C02F3/1215C02F9/00C02F2101/345C02F2103/36C02F2201/3227C02F2303/04C02F2305/10
Inventor 殷鹏刚史吉华
Owner PEKING PUYUAN INST FOR ADVANCED MATERIALS & TECH