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Sewage treatment preparation and preparation method thereof

A technology for sewage treatment and preparation, applied in the field of water pollution control, can solve the problems of low adsorption performance, reduced magnetic properties and adsorption capacity, etc., and achieve the effects of high adsorption performance, increasing contact area, and improving sewage treatment effect.

Active Publication Date: 2018-10-09
ZHEJIANG UNIV OF FINANCE & ECONOMICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Among them, the adsorption method has attracted much attention because of its low cost, simple operation, high treatment efficiency, and no secondary pollution. In particular, the magnetic material ferroferric oxide is widely used in sewage treatment due to its easy separation and low toxicity. However, due to the mutual attraction of the magnetic dipole moment, the exposed magnetic nano-ferroferric oxide is easy to agglomerate in aqueous solution, which reduces the magnetic properties and adsorption capacity, and also has the problem of low adsorption performance.

Method used

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  • Sewage treatment preparation and preparation method thereof

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Effect test

Embodiment 1

[0032] Preparation of ferroferric oxide: take the natural loofah to remove impurities, wash it with water, dry it, and keep the overall shape and structure of the loofah, and then place it in a plasma reactor with a nitrogen flow of 50sccm, a pressure of 3Pa, and a power of 60W Under the conditions, plasma treatment for 1min, take out the pretreated loofah; soak the pretreated loofah in a solution containing 0.2mol / LFeCl 2 4H 2O and 0.125mol / L FeCl 3 ·6H 2 In the mixed solution of O, after soaking for 15 hours, pass it into a nitrogen water bath to react for 1 hour, after vacuum drying at 100-120°C, place it in a tube furnace for calcination at 500°C for 2 hours, take it out with the furnace cooling, and obtain a porous mesh tetraoxide For three irons, the obtained ferric iron tetroxide is cut into small pieces and stored for subsequent use.

[0033] Preparation of modified biochar: Put the rice bran into a stainless steel pyrolysis device, blow in nitrogen gas to exhaust t...

Embodiment 2

[0038] Preparation of ferroferric oxide: take natural loofah to remove impurities, wash it with water, dry it, and keep the overall shape and structure of loofah, then place it in a plasma reactor, under nitrogen flow 80sccm, pressure 4Pa, power 80W Under the conditions, plasma treatment for 1min, take out the pretreated loofah; soak the pretreated loofah in a solution containing 0.2mol / LFeCl 2 4H 2 O and 0.125mol / L FeCl 3 ·6H 2 In the mixed solution of O, after soaking for 18 hours, pass it into a nitrogen water bath to react for 1.5 hours, after vacuum drying at 100-120°C, place it in a tube furnace for calcination at 550°C for 2 hours, take it out with the furnace cooling, and obtain a porous mesh tetra Ferric oxide, the obtained ferric oxide is cut into small pieces and stored for subsequent use.

[0039] Preparation of modified biochar: Mix rice bran and peanut shells in a mass ratio of 1:1 and put them into a stainless steel pyrolysis device, blow in nitrogen to exhau...

Embodiment 3

[0044] Preparation of ferroferric oxide: take natural loofah to remove impurities, wash it with water, dry it, and keep the overall shape and structure of loofah, then place it in a plasma reactor, under nitrogen flow 80sccm, pressure 4Pa, power 80W Under the conditions, plasma treatment 2min, take out the pretreated loofah; soak the pretreated loofah in a solution containing 0.2mol / LFeCl 2 4H 2 O and 0.125mol / L FeCl 3 ·6H 2 In the mixed solution of O, after soaking for 18 hours, pass it into a nitrogen water bath to react for 1.5 hours, after vacuum drying at 100-120°C, place it in a tube furnace for calcination at 600°C for 2 hours, take it out with the furnace cooling, and obtain a porous mesh tetra Ferric oxide, the obtained ferric oxide is cut into small pieces and stored for subsequent use.

[0045] Preparation of modified biochar: put rice bran, peanut shells, and corncobs into a stainless steel pyrolysis device at a mass ratio of 1:2:2, pass in nitrogen to exhaust t...

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Abstract

The invention relates to the technical field of water pollution control, in particular to a sewage treatment preparation and a preparation method thereof. The sewage treatment preparation is of a coreshell structure formed by using sodium oleate modified ferroferric oxides as a core and compounding a beta-cyclodextrin layer on the outer periphery of the core. Ferroferric oxides are of porous reticular structures; the pores of the ferroferric oxides is filled with modified charcoal. Ferroferric oxides in the sewage treatment preparation obtained through preparation have natural porous reticular structures of loofah; the modified charcoal can be filled, so that the large specific surface area is realized; the adsorption capability is further improved; high adsorption performance is shown; the sewage treatment preparation can be widely applied to purification treatment of industrial wastewater, domestic sewage and underground water.

Description

technical field [0001] The invention relates to the technical field of water pollution control, in particular to a sewage treatment preparation and a preparation method thereof. Background technique [0002] Water is the foundation of production, the essence of ecology, and the source of life. As a precious resource, water should be given sufficient attention. In recent years, with the rapid development of industries such as industry and aquaculture, coupled with the backwardness of sewage treatment technology and the awareness Insufficient sewage has been discharged indiscriminately, resulting in serious environmental pollution and waste of water resources. [0003] The existing sewage treatment technology can be divided into physical method, chemical method, physical chemical method and biological method according to the principle. The physical method is to separate and recover the insoluble suspended pollutants in the wastewater through physical action. The commonly used ...

Claims

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Application Information

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IPC IPC(8): B01J20/30B01J20/26C02F1/28C02F101/20
CPCB01J20/06B01J20/20B01J20/26B01J20/28057B01J2220/4875C02F1/28C02F1/281C02F1/283C02F2101/20C02F2101/22
Inventor 鲁仕宝鲍海君曾辉李蔚
Owner ZHEJIANG UNIV OF FINANCE & ECONOMICS
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