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Water treatment system and method for three-dimensional-electro-fenton treatment for triclocarban

A water treatment system, the technology of triclocarban, is used in water/sewage treatment, special compound water treatment, biological water/sewage treatment, etc. It can solve the problems of increased cost, secondary pollution, and inability to form continuous treatment, and achieve Reduce costs, enhance effectiveness

Inactive Publication Date: 2017-12-12
QILU INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After anodic oxidation generates iron ions, the anode is consumed. On the one hand, the anode plate needs to be replaced continuously during the treatment process, which is costly and requires shutdown during replacement, which affects the operation of the upstream process and cannot form continuous treatment; on the other hand, after the anode is consumed The generated iron ions will flow out with the sewage and cannot be used continuously. It is necessary to continuously consume the anode to generate iron ions, which is not conducive to recycling and increases costs. Moreover, the iron sludge will precipitate in the sewage after the sewage flows out and form secondary pollution, increasing processing cost

Method used

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  • Water treatment system and method for three-dimensional-electro-fenton treatment for triclocarban
  • Water treatment system and method for three-dimensional-electro-fenton treatment for triclocarban
  • Water treatment system and method for three-dimensional-electro-fenton treatment for triclocarban

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Experimental program
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preparation example Construction

[0057] The preparation method of PANI / Ti anode is:

[0058] S01: The porous titanium mesh polished with sandpaper of different thicknesses was washed with NaOH solution at 95°C for 1 hour, acid washed with HCl solution at 90°C for 1 hour, rinsed with deionized water, and then dried in a blast drying oven. Dry at 105°C for later use.

[0059] S02: Add 0.06 parts of sodium dodecyl sulfonate, 0.12 parts of n-butanol, and 10 parts of a mixture of butyl acrylate and ethanol to 30 parts of deionized water and magnetically stir until it is in the form of a transparent microemulsion. Use hydrochloric acid to adjust the pH The value was adjusted to 1, and 3 parts of aniline monomer was added dropwise to obtain a homogeneous solution.

[0060] S03: Under nitrogen and ice-water bath conditions, slowly add 10 parts of ammonium persulfate solution dropwise to the homogeneous solution obtained in the above step S02, and the dropping process lasts for 40 minutes to slowly initiate the polym...

Embodiment 2

[0064] The difference between this embodiment and the above-mentioned embodiment 1 is that the gold tailings-based Co / Fe in this embodiment 0 The preparation method of particle electrode 12 is:

[0065] Fully soak the gold tailings, ultrasonically clean them for 2 hours, dry them at 110°C for 6 hours, cool to room temperature, put them in a ball mill and grind them into powder, and use an 80-mesh sieve to sieve the gold tailings powder; then accurately Weigh parts by weight: 55 parts of gold tailings powder aggregate, 12 parts of sodium chloride pore-forming agent, 15 parts of cement binder, Co, Fe 0 20 parts of active components, mixed well, rolled into balls (diameter between 3-5mm), and then placed in a constant temperature incubator at 35°C for 8 days to obtain stable gold tailings-based Co / Fe 0 Particle electrode 12 .

Embodiment 3

[0067] The difference between this embodiment and the above-mentioned embodiment 1 is that the gold tailings-based Co / Fe in this embodiment 0 The preparation method of particle electrode 12 is:

[0068] Fully soak the gold tailings, ultrasonically clean them for 2 hours, dry them at 115°C for 3 hours, cool to room temperature, put them in a ball mill and grind them into powder, and use an 80-mesh sieve to sieve the gold tailings powder; then accurately Weigh parts by weight: 65 parts of gold tailings powder aggregate, 8 parts of sodium chloride pore-forming agent, 25 parts of cement binder, Co, Fe 0 15 parts of active components, mixed thoroughly, rolled into balls (with a diameter of 3-5mm), and then placed in a constant temperature incubator at 30°C for 10 days to obtain a stable gold tailings-based Co / Fe 0 Particle electrode 12 .

[0069] In other embodiments of the present invention, the device of the water treatment system can also be of other structures, for example, t...

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Abstract

The invention provides a water treatment system and method for three-dimensional-electro-fenton treatment for triclocarban. The water treatment system comprises a reactor, a water supply device, an aeration device, a dosing device and a power supply, wherein the reactor comprises a three-dimensional-electro-fenton reaction area and a biological filter material reaction area; the three-dimensional-electro-fenton reaction area is filled with a gold tailing-based Co / Fe0 particle electrode; and the biological filter material reaction area is filled with a biological filter material. The wastewater is firstly general treated by the microorganism on the biological filter material till COD, ammonia nitrogen, and the like, are decreased to some extent and then the triclocarban difficult to be biodegraded is deeply treated in the three-dimensional-electro-fenton reaction area. Persulfate is added into the reactor through the dosing device, the wastewater in the water supply device enters into the reactor and then is mixed with the persulfate, the persulfate is activated to generate free sulfate radicals and the free hydroxide radicals are electrically catalytic generated under the effect of Fe0 loaded by particle electrodes in the three-dimensional-electro-fenton reaction area and the free sulfate radicals and the free hydroxide radicals are used for effectively degrading the pollutants in water.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a three-dimensional-electric Fenton-like water treatment system and method for treating triclocarban. Background technique [0002] Triclocarban (TCC) is a fungicide commonly used in pharmaceuticals and personal care products (PPCPs), and is widely used in soaps, shower gels, facial cleansers, laundry detergents, beauty cosmetics, toothpaste, and medical disinfectants. Although TCC is less toxic than triclosan as a fungicide, it has a series of advantages such as high efficiency and broad spectrum, continuous action, color stability, etc., but with the increase of the amount of personal care products, TCC has developed into a widely existing water body Persistent pollutants, some studies have found that TCC can be detected in water samples from the Yellow River, Jiaozhou Bay in Qingdao, and Victoria Bay in Hong Kong, with a concentration of about 20-600ng / L. As a persist...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F101/30C02F101/34C02F101/38
CPCC02F1/46114C02F1/4672C02F3/00C02F9/00C02F2003/001C02F2101/30C02F2101/34C02F2101/38C02F2201/4619C02F2305/026
Inventor 于衍真李雪王占金王娟婷高隆隆李和平
Owner QILU INST OF TECH
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