Porous particle with functions of adsorbing and biodegrading petroleum hydrocarbon and preparation method of porous particle

Abstract

The invention discloses a porous particle with functions of adsorbing and biodegrading petroleum hydrocarbon and a preparation method of the porous particle. Poly-beta-hydroxybutyrate chloroformic solution with mass fraction of 8% and polyoxyethylene chloroformic solution with mass fraction of 8% are mixed according to the proportion of 4:1; deionized water is dripped into the mixed solution according to the proportion of 1:4, and mixture of the deionized water and the mixed solution is stirred for 4 minutes; obtained mixed liquid is dripped into polyvinyl alcohol solution with mass fraction of 0.3% according to the proportion of 1:1, and mixture is stirred for 4 minutes; polyvinyl alcohol solution with mass fraction of 0.4% is added in the mixture according to the proportion of 2:1, the mixture is centrifugally separated after being stirred for 7 hours to 8 hours, and is washed by deionized water for three times, the porous particle is obtained after the mixture is lyophilized; and the porous particle is taken out to be aired after being cultivated in petroleum hydrocarbon degrading bacterium culture solution for 24 hours. The porous particle and the preparation method thereof are simple in process, a prepared porous particle is high in efficiency to treat pollutants of the petroleum hydrocarbon, and an ecological environment of water cannot be polluted secondarily or damaged.

Description

technical field [0001] The invention belongs to the technical field of physical adsorption and biodegradation treatment of oil-spill-polluted water bodies, and in particular relates to a porous particle capable of adsorbing and biodegrading petroleum hydrocarbons and a preparation method thereof. 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. [00...

AI Technical Summary

Problems solved by technology

However, the cycle of bioremediation technology is relatively long, and at the same time, limited by the existence of highly efficient petroleum hydrocarbon degrading bacteria, the physical adsorption method faces the problem of reprocessing the adsorbent after the adsorption is saturated. If the physical adsorption method and biodegradation can be combined It can make up for the deficiencies of the two, and it will have greater advantages in dealing with oil spill pollution in water bodies.

[0004] However, in order to further promote and apply the technology of combining physical adsorption and biodegradation in the treatment of oil spill pollution in water bodies, materials with both physical adsorption and biodegradation functions have been developed, which will help improve the efficiency of oil spill pollution treatment in water bodies, It is of great significance to reduce environmental pollution, but there is still a lack of technology and research reports in this area