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Method for treating phenol-containing waste water in photocatalytic coupling and filtering integrated process

A technology for photocatalysis and phenolic wastewater, applied in the field of photocatalysis, can solve the problems of containing phenolic wastewater, poor photocatalytic performance, and difficulty in simultaneous treatment of suspended solids, and achieves the effects of easy recovery, stable chemical properties, and good photooxidation resistance.

Inactive Publication Date: 2018-01-30
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the problems of poor photocatalytic performance of the traditional process and difficulty in simultaneous treatment of suspended solids in phenol-containing wastewater.

Method used

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  • Method for treating phenol-containing waste water in photocatalytic coupling and filtering integrated process
  • Method for treating phenol-containing waste water in photocatalytic coupling and filtering integrated process

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specific Embodiment approach 1

[0014] Specific embodiment 1: A method of treating phenol-containing wastewater by a photocatalytic coupling and filtering integrated process of this embodiment is carried out according to the following steps:

[0015] 1. Preparation of the dispersion: dissolve the binder in ethanol, ultrasonically oscillate for 0.5~1.5h, add photocatalyst powder to the solution, and dilute to a concentration of 1~5g / L, stir magnetically for 2h to make the dispersion uniform;

[0016] 2. Loading of photocatalyst: After the treatment, the clean glass fiber cloth is immersed in the dispersion liquid of step 1 for 1h~3h, and dried and solidified in an oven at 100°C~200°C to obtain a glass fiber cloth loaded with photocatalyst once; Repeat this three according to actual requirements. Degradation of pollutants: arrange the glass fibers obtained in step two in wastewater containing phenol and SS, the concentration of phenol is 5~15mg / L, and the concentration of SS is 5~10mg / L. Irradiate under the li...

specific Embodiment approach 2

[0017] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the binder described in step 1 is aluminum phosphate or polyvinyl acetate latex. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0018] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the photocatalyst powder described in step 1 is black titanium dioxide or molybdenum disulfide. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to a method for treating phenol-containing waste water in a photocatalytic coupling and filtering integrated process, which relates to application of a photocatalytic coupling and filtering integrated process, which solves the problems that the traditional process is poor in photocatalytic performance, and suspended solids are contained in the phenol-containing waste water and are difficult to treat simultaneously. The method comprises the following steps: I, preparing a dispersion solution; II, loading a photocatalyst; III, degrading pollutants. The degradation rate of the integrated process water treatment method for phenol can reach 99 percent, and the removal rate for SS reaches 60 percent or higher at the same time. The catalyst and the carrier can be repeatedlyused, thereby actually realizing the cyclic economy.

Description

technical field [0001] The invention relates to the field of photocatalysis, and relates to the application of a photocatalytic coupling and filtering integration process. Background technique [0002] With the rapid development of modern industry, the discharge of wastewater and the types of pollutants in water are increasing, which not only seriously pollutes water bodies, but also poses a threat to human health. The traditional treatment process has high energy consumption, high requirements for self-control, and poor treatment effect on biodegradable pollutants. In addition, based on the concept of sustainable development, not only to efficiently treat wastewater, but also to avoid secondary pollution and realize resource recycling has become the goal of constant pursuit and exploration. As a research focus and hotspot, photocatalytic degradation of phenolic organic pollutants in sewage has been widely studied and applied. Common photocatalysts such as titanium dioxide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/30C02F101/34
Inventor 邢子鹏崔佳懿朱琦
Owner HEILONGJIANG UNIV