Flotation separation and recovery system and method for carbon-based adsorbent in polluted water environment
A carbon-based adsorbent and recovery method technology, which is applied in water/sewage treatment, chemical instruments and methods, flotation water/sewage treatment, etc., can solve the problems of low separation and recovery efficiency and high energy consumption of carbon-based adsorbents, To achieve the effect of increasing contact, reducing dosage and making full use of
Pending Publication Date: 2021-11-26
CHINA UNIV OF MINING & TECH
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[0003] In view of the above technical problems, the present invention provides a system and method for flotation separation and recovery of carbon-based adsorbents in polluted water environments to solve the problems of low separation and recovery efficiency and high energy consumption of existing carbon-based adsorbents
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[0026] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:
[0027] Such as figure 1 As shown, the carbon-based adsorbent flotation separation recovery system under the polluted water environment of the present invention includes a static adsorption device, a flotation separation device, a concentrator I, and an adsorbent recovery system; the static adsorption device is an adsorption tank or a stirred adsorption bucket The concentration and dehydration device is a conventional thickener, and the flotation separation device is a conventional flotation machine or a flotation column.
[0028] The output end of the static adsorption device is connected to the inlet of the concentrator I, the outlet of the concentrator I discharges the separated water, and its outlet is connected to the flotation separation device, and the concentrate slurry outlet of the flotation separation device is fed to the filter press I ...
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The invention discloses a flotation separation and recovery system and method for a carbon-based adsorbent in a polluted water environment, and is applicable to the field of polluted water treatment and recovery. A carbon-based adsorbent is fed into a static adsorption device filled with polluted water for adsorption treatment, then the treated sewage and used carbon-based adsorbent slurry are separated through a concentration and dehydration device after adsorption is completed, and the separated carbon-based adsorbent slurry is subjected to foam flotation separation. The discharge in a concentrate outlet of the flotation separation device is directly subjected to filter-pressing dehydration to recover the carbon-based adsorbent, whereas the discharge in a tailing outlet of the flotation separation device is subjected to concentration dehydration and then is subjected to filter-pressing dehydration recovery, and the recovered carbon-based adsorbent is subjected to crushing oxidation regeneration treatment to realize reuse. According to the invention, the workload of equipment such as a thickener and a filter press is reduced to a great extent, the recovery and reuse efficiency of the carbon-based adsorbent is improved, the energy consumption is reduced, and the method has a good market application prospect.
Description
technical field [0001] The invention relates to a flotation separation recovery system and method, in particular to a flotation separation recovery system and method for a carbon-based adsorbent in a polluted water environment when the polluted water is treated and recovered. Background technique [0002] With the increasingly serious problem of water pollution, the adsorption method of using porous solid adsorbent to adsorb one or several components in the water sample on the surface has been widely used in the treatment of water pollution. Due to the advantages of low cost, simple operation and no secondary pollution, carbon-based adsorbents occupy a considerable proportion in the treatment of water pollution by adsorption methods. With such a huge application range of carbon-based adsorbents, how to efficiently realize solid-liquid separation and recycle carbon-based adsorbents has become an urgent problem to be solved. The existing implementation forms of adsorption can...
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Login to View More IPC IPC(8): C02F9/02
CPCC02F9/00C02F1/281C02F1/24C02F1/001C02F1/40C02F2303/16
Inventor 桂夏辉徐天缘邢耀文王磊徐梦迪夏阳超李永改禚鹏程
Owner CHINA UNIV OF MINING & TECH