Sewage treatment method

A sewage treatment method and adsorption treatment technology, applied in the direction of adsorption water/sewage treatment, magnetic field/electric field water/sewage treatment, chemical instruments and methods, etc., can solve problems such as hindering popularization and application, complicated equipment, complicated and cumbersome operation, etc. Achieve good control of molecular concentration and interaction, reduce energy consumption, and fine internal structure

Active Publication Date: 2017-06-20
THE UNIV OF NOTTINGHAM NINGBO CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

(3) Ion exchange technology, its advantage is that multiple elements can be separated in one operation, and high-purity products can be obtained; but its one-time operation cycle takes a long time, and the cost of resin regeneration and exchange is high; There are many valves in the exchange bed, and the operation is complicated and cumbersome; acid-base regeneration is required, and there are hidden dangers of environmental pollution
(4) Photochemical oxidation method, the strong oxidative properties of this method, the non-selectivity to the object of action and the characteristics that the organic matter can be completely mineralized in the end make photocatalytic oxidation have a good application prospect in the advanced treatment of drinking water; but The cost is high and the equipment is complicated. The main problems to be solved in the practical application of photocatalytic oxidation are to determine the catalyst poisoning situation during long-term operation and to find an ideal regeneration method, to solve the problem of catalyst separation and recovery or immobilization, reactor design and Improve the utilization rate of light energy, etc., so there are many restrictions on the promotion and use in the near future
[0003] In summary, existing water treatment technologies are usually confined to large water treatment systems and thus require significant investment in capital, engineering expertise and infrastructure, preventing their deployment and application in most parts of the world

Method used

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Effect test

Embodiment 1

[0032] A sewage treatment method, comprising the steps of:

[0033] 1) Prepare porous composite material;

[0034] 2) Put the above-mentioned porous composite functional material in the sewage to adsorb the organic pollutants in the water body; use the large-density microporous structure of the particles and the hydrophobicity of PDMS to absorb common water body pollutants such as organic solvents toluene, sulfide, Thiophenol and thioether, etc.;

[0035] 3) The magnetic particles adsorbed with pollutants are first recovered by an external magnetic field, and then the magnetic field strength is increased to separate the magnetic particles from the pollutants.

[0036] The porous composite material includes a magnetic core 1 and a porous shell 2 coated on the outside of the core, and the porous composite material is prepared by the following steps:

[0037] 1) Prepare a microfluidic chip in which channels with a two-stage copolymerization flow structure are connected in series ...

Embodiment 2

[0043] Sewage treatment method is the same as embodiment one.

[0044] The porous composite material includes a magnetic core 1 and a porous shell 2 coated on the outside of the core, and the porous composite material is prepared by the following steps:

[0045] 1) Prepare a microfluidic chip in which channels with a two-stage copolymerization flow structure are connected in series by a soft photolithography method; the microfluidic chip includes an inner channel 3, a middle channel 4, an outer channel 5 and an outflow channel 6; The middle channel 4 includes a first middle channel 41 and a second middle channel 42; the outer channel 5 includes a first outer channel 51 and a second outer channel 52; the material of the microfluidic chip is an acrylic plate, and the length of the chip is 10 cm. 500μm wide and 500μm high;

[0046] 2) prepare three kinds of mutually immiscible liquid phases, as inner phase, intermediate phase and outer phase, prepare double emulsion template; De...

Embodiment 3

[0050] Sewage treatment method is the same as embodiment one.

[0051] The porous composite material includes a magnetic core 1 and a porous shell 2 coated on the outside of the core, and the porous composite material is prepared by the following steps:

[0052] 1) Prepare a microfluidic chip in which channels with a two-stage copolymerization flow structure are connected in series by a soft photolithography method; the microfluidic chip includes an inner channel 3, a middle channel 4, an outer channel 5 and an outflow channel 6; The middle channel 4 includes a first middle channel 41 and a second middle channel 42; the outer channel 5 includes a first outer channel 51 and a second outer channel 52; the material of the microfluidic chip is an acrylic plate, and the length of the chip is 10 cm. 500μm wide and 500μm high;

[0053] 2) prepare three kinds of mutually immiscible liquid phases, as inner phase, middle phase and outer phase, prepare double emulsion template; Describe...

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Abstract

The invention provides a sewage treatment method. Water body pollutants are subjected to adsorption treatment through porous composite materials; the porous composite material comprises a magnetic inner core (1) and a porous case (2) coating the outside of the inner core; a microfluid technology is used for synthesizing micron order porous composite materials; the water body pollutants are subjected to adsorption treatment by the porous composite materials.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a sewage treatment method. Background technique [0002] With the rapid development of industry, water pollution has become an increasingly serious environmental problem. For water pollution control, there have been many technologies for water pollution control at home and abroad in the past ten years, including: (1) Electrodialysis technology, the electrodialysis device has a simple structure, does not need to consume chemicals, simple equipment, and easy operation ; But in the process of operation, the cathode and the membrane are easy to scale, thus affecting the water quality of the effluent, and shortening the use time of the instrument; and the power consumption and water consumption are very high. (2) Reverse osmosis technology, which has the advantages of no phase change in the filtration process, no heating, low energy consumption, no need to add chemical reage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28C02F1/48B01J20/26B01J20/28
CPCB01J20/06B01J20/26B01J20/28009C02F1/28C02F1/48
Inventor 任勇高家盛何俊连正
Owner THE UNIV OF NOTTINGHAM NINGBO CHINA
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