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Method for efficiently removing galaxolide in water

A technology for carol musk and water removal, applied to chemical instruments and methods, water pollutants, water/sewage treatment, etc., can solve the problems that the adsorption capacity of organic pollutants needs to be improved, and achieve fast processing time, large adsorption capacity, The effect of the treatment effect is obvious

Pending Publication Date: 2019-02-19
SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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  • Description
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  • Application Information

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Problems solved by technology

However, the adsorption capacity of single biochar to organic pollutants needs to be improved

Method used

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  • Method for efficiently removing galaxolide in water
  • Method for efficiently removing galaxolide in water
  • Method for efficiently removing galaxolide in water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～6

[0037] Preparation of biochar materials

[0038] Wheat (WS) and rice husk (RH) straws were dried and crushed to a particle size of 2 mm, and 12 g of crushed wheat straw was weighed in a ceramic crucible (as full as possible to reduce the presence of oxygen), and placed in an oven (DGG-9023A , Shanghai Senxin Experimental Instrument Co., Ltd., China) and dried at 80 °C for 24 h. Nitrogen was applied to the surface of the dried wheat straw 2To remove oxygen, seal the ceramic crucible with aluminum foil paper (limited oxygen), place the ceramic crucible in a muffle furnace (SX-GO7102, Tianjin Zhonghuan Experimental Electric Furnace Co., Ltd., China) and crack in C1 Oxygen cracking at low temperature for 2h. After the cracking, wash repeatedly with distilled water until the pH of the cleaning solution is neutral. After washing, put it in an oven and dry it at 80°C for 24 hours to obtain biochar, which is stored for future use. Among them, the C1 value and the obtained biochar ar...

Embodiment 7～12

[0043] Preparation of ball-milled biochar

[0044] The biochar that above-mentioned embodiment 1~6 obtains is placed in the agate jar of 500mL, all puts 1.8g biochar and 180g diameter in each jar and is the agate ball of 6mm, puts into planetary ball mill after agate jar is sealed , ball milled at room temperature at 300 rpm for 12 hours, and switched the direction of rotation every 30 minutes. The nomenclature of the ball-milled biochar is shown in Table 2.

[0045] The biochar obtained in Table 2 Examples 1 to 6 is ball-milled to obtain ball-milled biochar

[0046]

[0047]

Embodiment 13

[0049] The effect of ball milling on the properties of biochar:

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Abstract

The invention discloses a method for efficiently removing galaxolide in water, and belongs to the field of environmental protection water treatment. The method includes the steps: adding ball-milled biochar into the water to be treated; enriching the galaxolide in the water into the surface and pores of the ball-milled biochar by the aid of excellent physicochemical properties of the ball-milled biochar through adsorption and distribution functions to efficiently remove galaxolide pollutants in the water. Resourceful treatment of waste is realized to a certain degree by biochar preparation, and preparation of the ball-milled biochar has the advantages of simple process, low cost and high efficiency. Compared with other biochar modification methods (such as acid and alkali modification, andbiochar and nano-particle compounding), the method has the advantages that cost is saved, and secondary pollution is reduced. The HHCB adsorption quantity of the method can reach 2125mg / kg and is farhigher than that of corresponding original biochar (750mg / kg).

Description

technical field [0001] The invention belongs to the field of water treatment for environmental protection, and in particular relates to a method for efficiently removing carole musk from water. Background technique [0002] In the past decade, with the improvement of environmental analysis technology and the enhancement of people's environmental awareness, emerging micro-pollutants in the water environment are increasingly concerned by researchers around the world, such as pharmaceuticals and personal care products (Pharmaceuticals and Personal Care Products, PPCPs), endocrine disruptors (Endocrine Disruptors Chemicals, EDCs), etc. Low concentration (ng / L~μg / L order of magnitude), many types, and complex properties are important characteristics of micro-polluting organic matter. At present, many micro-polluting organic substances detected in water bodies have been proven to cause great harm to the human body, and some of them have even been identified or suspected as "three...

Claims

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Application Information

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IPC IPC(8): C02F1/28B01J20/30B01J20/20C10B53/02C02F101/34
CPCB01J20/20C10B53/02C02F1/283C02F2101/34Y02E50/10
Inventor 张倩茹王建美吕宏虹侯润邦姜丽思
Owner SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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