Copolymer adsorption ball with enhanced biodegradation function against various organic pollutants and preparation process thereof

A technology of organic pollutants and biodegradation, applied in the field of copolymer adsorption balls and preparation technology, can solve the problems of lack of technology and research reports

Inactive Publication Date: 2014-03-05
BEIJING NORMAL UNIVERSITY
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  • Application Information

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Problems solved by technology

In order to further popularize and apply the combination of physical adsorption method and enhanced degradation of immobilized microorganisms in the treatment of oil spill pollution in water bodies, it is necessary to develop a biodegradable biodegradable biodegradable biodegradable biodegradable biodegradable biodegradable biodegradable biodegradable biodegradable biodegradable biodegradable biodegradable biodegradable biodegradable biodegradable biodegradable biodegradable biodegradable ...

Method used

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Embodiment

[0027] 100 mL of NH with a concentration of 0.35 mol / L 4 HCO 3 solution and 100mL Ca(NO 3 ) 2 Solution, mixed uniformly to obtain mixed solution A; 100mL concentration of 0.35mol / L (NH 4 ) 2 HPO 4 The solution was slowly added dropwise to 200mL mixed solution A under stirring conditions to obtain mixed solution B; add concentrated HNO to mixed solution B dropwise 3 Until clarification, mixed solution C is obtained; the pH value of mixed solution C is adjusted to 3.5 with NaOH solution with a concentration of 0.01mol / L and nitric acid solution with a concentration of 0.01mol / L to obtain mixed solution D; add 100mL Mix the urea aqueous solution with a concentration of 1.2 mol / L to obtain a mixed solution E; add 50 mL of a 0.15 mol / L calcium sodium edetate solution to the mixed solution E, and mix well to obtain a mixed solution F.

[0028] Put 60 mL of urea aqueous solution with a mass fraction of 45% in a water bath at 43°C for 35 minutes to obtain mixed solution G; place...

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Abstract

The invention discloses a copolymer adsorption ball with an enhanced biodegradation function against various organic pollutants and a preparation process thereof. The preparation process comprises the steps of preparing a mixed solution F from NH4HCO3, Ca(NO3)2, (NH4)2HPO4, a urea water solution and an ethylenediaminetetraacetic acid calcium sodium solution; preparing a mixed solution L from urea and a formaldehyde water solution; preparing a mixed solution M from a poly beta-hydroxybutyrate chloroform solution and a polyethylene glycol chloroform solution; dropping the mixed solution L into the mixed solution M to obtain a mixed solution N; dropping the mixed solution F into the mixed solution N to obtain a mixed solution O; dropping the mixed solution O into a polyvinyl alcohol solution to obtain a mixed solution P; adding the polyvinyl alcohol solution into the mixed solution P and performing centrifugal separation to obtain the copolymer adsorption ball with a nitrogen and phosphorus sustained release function; culturing the copolymer adsorption ball in a petroleum hydrocarbon degrading bacterial culture solution for 24h and then taking out for air-drying. The preparation process disclosed by the invention is simple, and the prepared copolymer adsorption ball has the nitrogen and phosphorus sustained release function, the function of adsorbing various organic pollutants and the function of degrading petroleum hydrocarbons.

Description

technical field [0001] The invention belongs to the technical field of treatment of oil-spill-polluted water bodies, and in particular relates to a copolymer adsorption ball with enhanced biodegradation function for various organic pollutants and a preparation process. Background technique [0002] In recent years, with the increasing demand for oil and its products in various countries around the world, oil spill accidents have occurred frequently in the process of offshore mining, loading and unloading, transportation and utilization of oil, which not only caused a large amount of crude oil loss, but also caused serious pollution to the environment. It is increasingly threatening the ecological environment of water bodies and land areas, and has long-term harm to water body environment, natural resources and aquaculture resources. Therefore, oil spill pollution in water bodies has become a major environmental problem that people must face. [0003] At present, there are ma...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/30C02F3/34
Inventor 豆俊峰袁静丁爱中许新宜程莉蓉
Owner BEIJING NORMAL UNIVERSITY
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