Absorbent for removing refractory organics and preparation method thereof
A technology for refractory organic matter and adsorbents, applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., can solve problems such as increased operating costs, difficulty in equipment maintenance, accelerated equipment corrosion, etc., to achieve low production costs , Lose water quickly and cost less
Inactive Publication Date: 2015-08-12
HARBIN INST OF TECH
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Problems solved by technology
However, the use of ultrasonic degradation requires the modification and renewal of existing equipment and water treatment systems, which increases operating costs; and ultrasonic vibration breaks the water in the treated water body into many small droplets, and the rise of the droplets accelerates the corrosion of the equipment, and The difficulty of equipment maintenance
Method used
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specific Embodiment approach 1
[0024] Specific embodiment one: the adsorbent that this embodiment removes refractory organic matter is the jute fiber through modification; Modification steps are as follows:
[0025] 1. Soak jute fiber in NaOH solution;
[0026] 2. Take out the jute fiber from the NaOH solution, dry it, put it into an organic solvent containing acid anhydride, and heat it with microwaves.
specific Embodiment approach 2
[0027] Embodiment 2: The adsorbent for removing refractory organic matter in this embodiment is prepared according to the following steps:
[0028] 1. Soak jute fiber in NaOH solution;
[0029] 2. The jute fiber is taken out from the NaOH solution, dried, then put into an organic solvent containing acid anhydride, and then microwave-heated to obtain an adsorbent for removing refractory organic matter.
specific Embodiment approach 3
[0030] Embodiment 3: The difference between this embodiment and Embodiment 2 is that the concentration of NaOH solution in step 1 is 5%. Other steps and parameters are the same as those in Embodiment 2.
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Abstract
The invention relates an absorbent for removing refractory organics and a preparation method thereof. The absorbent can absorb organics in sewage, has a large absorption amount, can be regenerated and recycled, and will not generate secondary pollution. The absorbent is modified jute fibers. The preparation method comprises the following steps: step one, soaking jute fibers in a NaOH solution; step two, taking out the jute fibers from the NaOH solution, drying the jute fibers, then soaking the jute fibers in an organic solvent containing anhydride, and finally heating the jute fibers by microwaves. The provided absorbent can be used to remove refractory organics in polluted water.
Description
technical field [0001] The invention relates to an adsorbent and a preparation method thereof. Background technique [0002] With the development of modern industry and the expansion of city scale, the discharge of wastewater is increasing year by year. Industrial sewage and domestic sewage often contain a large amount of refractory organic matter. These refractory organic matter can be ingested into the human body through the respiratory tract and digestive tract, and may also be absorbed into the human body through the skin, affecting the oxygen supply of tissue cells and causing internal suffocation. Classes are even carcinogenic. Therefore, a large amount of refractory organic pollutants entering natural water bodies will bring great harm to human health and the ecological environment. [0003] The treatment of organic pollutants that are difficult to biodegrade can achieve the purpose of removing organic matter, improving biochemical properties, reducing the load drop...
Claims
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IPC IPC(8): B01J20/24B01J20/30C02F1/28
Inventor 王鹏胡奇郑彤潘红玉高大文
Owner HARBIN INST OF TECH