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Method for deeply treating refractory pollutants by using conductive filter membrane-heterogeneous Fenton-like water treatment device

A water treatment device and advanced treatment technology, applied in water pollutants, water/sewage treatment, water/sewage multi-stage treatment, etc., can solve the problems of membrane fouling, limit the application of membrane separation technology, etc. Treatment efficiency, improve water treatment effect, shorten the effect of water treatment process

Pending Publication Date: 2021-12-03
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, problems such as membrane fouling caused by interception, the trade-off between membrane permeability and selectivity, and the subsequent treatment of concentrates limit the further application of membrane separation technology.

Method used

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  • Method for deeply treating refractory pollutants by using conductive filter membrane-heterogeneous Fenton-like water treatment device
  • Method for deeply treating refractory pollutants by using conductive filter membrane-heterogeneous Fenton-like water treatment device
  • Method for deeply treating refractory pollutants by using conductive filter membrane-heterogeneous Fenton-like water treatment device

Examples

Experimental program
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Effect test

Embodiment 1

[0038] A method for advanced treatment of refractory pollutants using a conductive filter membrane-heterogeneous Fenton-like water treatment device,

[0039] The conductive filter membrane-heterogeneous Fenton-like water treatment device is coupled with a conductive filter membrane and a heterogeneous Fenton-like water treatment device, and the structure is as follows figure 1As shown, the reactor body 1 is included, and the reactor body 1 is a cuboid of 50 cm × 30 cm × 10 cm. One side of the reactor body is provided with a water inlet 2, and the side wall of the reactor body is provided with a water outlet. There are conductive filter membranes 5 arranged vertically and uniformly. The size of the conductive filter membranes 5 is 25cm×8cm, the membrane pore size is 0.8um, and the distance between the conductive ultrafiltration membranes 5 is 3cm. The filter membrane, the conductive filter membrane is filled with advanced oxidation catalytic filler 7, the advanced oxidation cat...

Embodiment 2

[0049] Utilize conductive filter membrane-heterogeneous Fenton-like water treatment device to carry out the method for advanced treatment of refractory pollutants, described water treatment device is described in embodiment 1; Difference is:

[0050] The described deep processing method comprises steps as follows:

[0051] 1) The electrode plate and the conductive filter membrane are externally connected to low-voltage direct current, and the applied electric field voltage is 5V. After the waste water is mixed with 10% potassium persulfate solution, the conductive filter membrane is injected into the conductive filter membrane from the water inlet 2 by a constant current pump-heterogeneous Fenton-like water treatment device Medium; the flow rate is 15L / h, the concentration of potassium persulfate after mixing is 20mg / L,

[0052] 2) Potassium persulfate and the pollutants in the wastewater diffuse rapidly to the surface and internal pores of the filler and the conductive filter...

Embodiment 3

[0059] A method for advanced treatment of refractory pollutants using a conductive filter membrane-heterogeneous Fenton-like water treatment device. The conductive filter membrane-heterogeneous Fenton-like water treatment device is the same as that described in Example 1, except that at:

[0060] The conductive filter membrane is a conductive microfiltration membrane loaded with carbon black material, its cut-off pore size is 1nm, and the distance between the conductive filter membranes is 10cm.

[0061] The electrode plate is a titanium plate.

[0062] The distance between the aeration heads is 30cm, the aeration gas is air, and the aeration intensity is 20m 3 / m 2 h.

[0063] Others carry out by embodiment 1.

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Abstract

The invention relates to a method for deeply treating refractory pollutants by using a conductive filter membrane-heterogeneous Fenton-like water treatment device. The deep treatment method combines a conductive filter membrane and a heterogeneous Fenton-like oxidation method, takes an electrode plate as an anode, takes the conductive filter membrane as a cathode, and the space between the conductive filter membranes is filled with a carbon material with catalytic performance, so that a reactor can synchronously complete the Fenton-like reaction and the membrane filtration effect, the water treatment process is greatly shortened, and the water treatment effect is improved. The treatment method disclosed by the invention has the advantages of inhibiting the deposition and enrichment of pollutants on the membrane, reducing the use of a catalytic agent in an advanced oxidation process and the discharge of metal ions such as iron and manganese, improving the Fenton-like treatment efficiency, shortening the water treatment flow and improving the water treatment effect of the refractory pollutants.

Description

technical field [0001] The invention and a method for advanced treatment of refractory pollutants by using a conductive filter membrane-heterogeneous Fenton-like water treatment device belong to the technical field of wastewater treatment. Background technique [0002] The advanced treatment of refractory pollutants in wastewater has always been a difficult problem in the environmental protection industry. In order to improve the treatment effect of refractory pollutants, the development of new water treatment equipment, materials and processes has become a hot spot in the environmental protection industry. [0003] In the existing industrial wastewater treatment process, the biochemical process is an important stage to remove organic pollutants in wastewater, but this stage has little effect on the removal of refractory organic pollutants. Therefore, the key to improving the quality of industrial wastewater effluent lies in the refractory organic pollutants. removal of mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/06C02F101/38C02F101/36C02F101/34C02F101/30
CPCC02F1/44C02F1/4672C02F2305/023C02F2101/30C02F2101/308C02F2101/36C02F2101/34C02F2101/38
Inventor 王燕王敏倪晓雨高宝玉
Owner SHANDONG UNIV
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