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Preparation method of nanocomposite adsorption material, adsorbent for treating trihydroxytriphenylmethane substances in wastewater and treatment method
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A technology for treating wastewater and nanocomposite, which is applied in the fields of adsorption water/sewage treatment, water pollutants, water/sewage treatment, etc. Short time, select the effect of strong adsorption
Inactive Publication Date: 2018-07-20
CHONGQING UNIV
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Problems solved by technology
[0004] Aiming at the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a nanocomposite nanocomposite with high adsorption capacity and good selectivity for the problems of non-selective adsorption and low adsorption capacity of the adsorption material in the prior art. Preparation method of adsorption material, adsorbent for treating trihydroxytriphenylmethane substances in wastewater and treatment method
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Embodiment 1
[0022] A preparation method of nano composite adsorption material includes the following steps:
[0023] 1) Take 4.5 g SrCO respectively 3 , 4.5g Bi(NO 3 ) 3 ·5H 2 O, 9.0g C 3 H 6 N 6 As the mixed raw materials, the mixed raw materials were dissolved in 15 mL of deionized water, and then ultrasonically dispersed for 15 minutes to make them uniformly mixed to obtain a mixed solution.
[0024] 2) Place the mixed solution obtained in step 1) in an oven at 60°C for 1.5 hours to remove excess water in the mixed solution and obtain a dried mixed material.
[0025] 3) Place the dried mixed material in step 2) for calcination in a muffle furnace, set the temperature to 550°C, and calcine for 4 hours to obtain the calcined material.
[0026] 4) After the calcined material obtained in step 3) is cooled to room temperature, it is ground with a mortar to obtain the prepared nanocomposite adsorbent material.
[0027] This embodiment also provides an adsorbent for treating trihydroxytriphenylmethane ...
Embodiment 2
[0030] A preparation method of nano composite adsorption material includes the following steps:
[0031] 1) Take 2.0 g SrCO respectively 3 , 2.0 g Bi(NO 3 ) 3 ·5H 2 O, 14.0 g C 3 H 6 N 6 As the mixed raw materials, the mixed raw materials were dissolved in 20 mL of deionized water, and then ultrasonically dispersed for 20 minutes to make them uniformly mixed to obtain a mixed solution.
[0032] 2) Place the mixed solution obtained in step 1) in an oven at 80°C for 2 hours to remove excess water in the mixed solution and obtain a dried mixed material.
[0033] 3) Place the dried mixed material in step 2) for calcination in a muffle furnace, set the temperature to 550°C, and calcine for 4 hours to obtain the calcined material.
[0034] 4) After the calcined material obtained in step 3) is cooled to room temperature, it is pulverized with a mortar to obtain the prepared nanocomposite adsorbent material.
[0035] This embodiment also provides an adsorbent for the treatment of trihydroxytrip...
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Abstract
The invention provides a preparation method of a nano composite adsorbing material as well as an adsorbent and a treatment method used for treating a trihydroxy triphenylmethane substance in wastewater. The nano composite adsorbing material is prepared by using SrCO3, Bi(NO3).5H2O and C3H6N6 as mixed raw materials and through the following steps of confecting the mixed raw materials to be an aqueous solution, drying the aqueous solution for 1h to 2h at 60 DEG C to 80 DEG C, calcining an obtained first product for 4h to 6h at 400 DEG C to 700 DEG C, then cooling and grinding an obtained second product, and the like. Components of the adsorbent used for treating the trihydroxy triphenylmethane substance in the wastewater comprise the nano composite adsorbing material; during specific treatment, the adsorbent used for treating the trihydroxy triphenylmethane substance in the wastewater is added into the wastewater to carry out the treatment. The nano composite adsorbing material provided by the invention is high in the selective adsorbability on the trihydroxy triphenylmethane substance in the wastewater, is further high in adsorption capacity, and has an adsorption rate, which is up to 93.85 percent, to crystal violet; an unexpected selective adsorption effect is acquired.
Description
Technical field [0001] The invention belongs to the technical field of adsorption materials, and specifically relates to a preparation method of a nanocomposite adsorption material, an adsorbent for treating trihydroxytriphenylmethane substances in wastewater, and a treatment method. Background technique [0002] The rapid development of social economy has led to increasingly prominent water environmental pollution. At present, the main technologies used for wastewater treatment are activated sludge method, membrane separation method, electrochemical method, etc. Among them, the adsorption method based on adsorbent materials is still widely used because of its high efficiency in treating pollutants, low operating costs, fast processing speed, and strong adaptability. [0003] The traditional adsorption materials mainly include activated carbon, activated alumina, diatomaceous earth, zeolite, diatomaceous earth, chitosan, adsorption resin and so on. However, these adsorption mater...
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